mirror of https://github.com/hak5/openwrt-owl.git
add device tree based initialization to wl12xx
Signed-off-by: Imre Kaloz <kaloz@openwrt.org> SVN-Revision: 38933owl
Imre Kaloz
parent
dcae3ef009
commit
9a0d644f9e
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@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/kernel.mk
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PKG_NAME:=mac80211
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PKG_VERSION:=2013-11-05
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PKG_RELEASE:=3
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PKG_RELEASE:=4
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PKG_SOURCE_URL:=http://mirror2.openwrt.org/sources
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PKG_BACKPORT_VERSION:=
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PKG_MD5SUM:=5ef839d02d19c341629555a529beebee
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@ -0,0 +1,109 @@
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Move the wl1251 part of the wl12xx platform data structure into a new
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structure specifically for wl1251. Change the platform data built-in
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block and board files accordingly.
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Cc: Tony Lindgren <tony@atomide.com>
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Signed-off-by: Luciano Coelho <coelho@ti.com>
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Acked-by: Tony Lindgren <tony@atomide.com>
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Reviewed-by: Felipe Balbi <balbi@ti.com>
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--- a/drivers/net/wireless/ti/wilink_platform_data.c
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+++ b/drivers/net/wireless/ti/wilink_platform_data.c
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@@ -23,17 +23,17 @@
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#include <linux/err.h>
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#include <linux/wl12xx.h>
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-static struct wl12xx_platform_data *platform_data;
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+static struct wl12xx_platform_data *wl12xx_platform_data;
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int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data)
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{
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- if (platform_data)
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+ if (wl12xx_platform_data)
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return -EBUSY;
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if (!data)
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return -EINVAL;
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- platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
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- if (!platform_data)
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+ wl12xx_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
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+ if (!wl12xx_platform_data)
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return -ENOMEM;
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return 0;
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@@ -41,9 +41,34 @@ int __init wl12xx_set_platform_data(cons
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struct wl12xx_platform_data *wl12xx_get_platform_data(void)
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{
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- if (!platform_data)
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+ if (!wl12xx_platform_data)
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return ERR_PTR(-ENODEV);
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- return platform_data;
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+ return wl12xx_platform_data;
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}
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EXPORT_SYMBOL(wl12xx_get_platform_data);
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+
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+static struct wl1251_platform_data *wl1251_platform_data;
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+
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+int __init wl1251_set_platform_data(const struct wl1251_platform_data *data)
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+{
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+ if (wl1251_platform_data)
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+ return -EBUSY;
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+ if (!data)
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+ return -EINVAL;
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+
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+ wl1251_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
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+ if (!wl1251_platform_data)
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+ return -ENOMEM;
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+
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+ return 0;
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+}
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+
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+struct wl1251_platform_data *wl1251_get_platform_data(void)
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+{
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+ if (!wl1251_platform_data)
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+ return ERR_PTR(-ENODEV);
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+
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+ return wl1251_platform_data;
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+}
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+EXPORT_SYMBOL(wl1251_get_platform_data);
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--- a/drivers/net/wireless/ti/wl1251/sdio.c
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+++ b/drivers/net/wireless/ti/wl1251/sdio.c
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@@ -227,7 +227,7 @@ static int wl1251_sdio_probe(struct sdio
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struct wl1251 *wl;
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struct ieee80211_hw *hw;
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struct wl1251_sdio *wl_sdio;
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- const struct wl12xx_platform_data *wl12xx_board_data;
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+ const struct wl1251_platform_data *wl1251_board_data;
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hw = wl1251_alloc_hw();
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if (IS_ERR(hw))
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@@ -254,11 +254,11 @@ static int wl1251_sdio_probe(struct sdio
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wl->if_priv = wl_sdio;
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wl->if_ops = &wl1251_sdio_ops;
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- wl12xx_board_data = wl12xx_get_platform_data();
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- if (!IS_ERR(wl12xx_board_data)) {
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- wl->set_power = wl12xx_board_data->set_power;
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- wl->irq = wl12xx_board_data->irq;
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- wl->use_eeprom = wl12xx_board_data->use_eeprom;
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+ wl1251_board_data = wl1251_get_platform_data();
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+ if (!IS_ERR(wl1251_board_data)) {
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+ wl->set_power = wl1251_board_data->set_power;
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+ wl->irq = wl1251_board_data->irq;
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+ wl->use_eeprom = wl1251_board_data->use_eeprom;
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}
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if (wl->irq) {
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--- a/drivers/net/wireless/ti/wl1251/spi.c
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+++ b/drivers/net/wireless/ti/wl1251/spi.c
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@@ -241,7 +241,7 @@ static const struct wl1251_if_operations
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static int wl1251_spi_probe(struct spi_device *spi)
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{
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- struct wl12xx_platform_data *pdata;
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+ struct wl1251_platform_data *pdata;
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struct ieee80211_hw *hw;
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struct wl1251 *wl;
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int ret;
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@ -0,0 +1,111 @@
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The platform_quirk element in the platform data was used to change the
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way the IRQ is triggered. When set, the EDGE_IRQ quirk would change
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the irqflags used and treat edge trigger differently from the rest.
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Instead of hiding this irq flag setting behind the quirk, have the
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board files set the flags during initialization. This will be more
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meaningful than driver-specific quirks when we switch to DT.
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Additionally, fix missing gpio_request() calls in the boarding files
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(so that setting the flags actually works).
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Cc: Tony Lindgren <tony@atomide.com>
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Cc: Sekhar Nori <nsekhar@ti.com>
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Signed-off-by: Luciano Coelho <coelho@ti.com>
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Reviewed-by: Felipe Balbi <balbi@ti.com>
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Acked-by: Sekhar Nori <nsekhar@ti.com>
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--- a/drivers/net/wireless/ti/wlcore/debugfs.c
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+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
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@@ -502,7 +502,7 @@ static ssize_t driver_state_read(struct
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DRIVER_STATE_PRINT_HEX(irq);
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/* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
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DRIVER_STATE_PRINT_HEX(hw_pg_ver);
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- DRIVER_STATE_PRINT_HEX(platform_quirks);
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+ DRIVER_STATE_PRINT_HEX(irq_flags);
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DRIVER_STATE_PRINT_HEX(chip.id);
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DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
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DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
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--- a/drivers/net/wireless/ti/wlcore/main.c
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+++ b/drivers/net/wireless/ti/wlcore/main.c
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@@ -27,6 +27,7 @@
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#include <linux/vmalloc.h>
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#include <linux/wl12xx.h>
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#include <linux/interrupt.h>
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+#include <linux/irq.h>
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#include "wlcore.h"
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#include "debug.h"
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@@ -528,7 +529,7 @@ static int wlcore_irq_locked(struct wl12
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* In case edge triggered interrupt must be used, we cannot iterate
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* more than once without introducing race conditions with the hardirq.
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*/
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- if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
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+ if (wl->irq_flags & IRQF_TRIGGER_RISING)
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loopcount = 1;
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wl1271_debug(DEBUG_IRQ, "IRQ work");
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@@ -5925,7 +5926,6 @@ struct ieee80211_hw *wlcore_alloc_hw(siz
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wl->ap_ps_map = 0;
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wl->ap_fw_ps_map = 0;
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wl->quirks = 0;
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- wl->platform_quirks = 0;
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wl->system_hlid = WL12XX_SYSTEM_HLID;
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wl->active_sta_count = 0;
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wl->active_link_count = 0;
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@@ -6066,7 +6066,7 @@ static void wlcore_nvs_cb(const struct f
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struct platform_device *pdev = wl->pdev;
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struct wlcore_platdev_data *pdev_data = dev_get_platdata(&pdev->dev);
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struct wl12xx_platform_data *pdata = pdev_data->pdata;
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- unsigned long irqflags;
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+
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int ret;
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irq_handler_t hardirq_fn = NULL;
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@@ -6094,18 +6094,17 @@ static void wlcore_nvs_cb(const struct f
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wlcore_adjust_conf(wl);
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wl->irq = platform_get_irq(pdev, 0);
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- wl->platform_quirks = pdata->platform_quirks;
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wl->if_ops = pdev_data->if_ops;
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- if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ) {
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- irqflags = IRQF_TRIGGER_RISING;
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- hardirq_fn = wlcore_hardirq;
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- } else {
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- irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
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- }
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+ wl->irq_flags = irq_get_trigger_type(wl->irq);
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+
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+ hardirq_fn = wlcore_hardirq;
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+
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+ /* Since we don't use the primary handler, we must set ONESHOT */
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+ wl->irq_flags |= IRQF_ONESHOT;
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ret = request_threaded_irq(wl->irq, hardirq_fn, wlcore_irq,
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- irqflags, pdev->name, wl);
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+ wl->irq_flags, pdev->name, wl);
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if (ret < 0) {
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wl1271_error("request_irq() failed: %d", ret);
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goto out_free_nvs;
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--- a/drivers/net/wireless/ti/wlcore/wlcore.h
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+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
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@@ -186,6 +186,8 @@ struct wl1271 {
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int irq;
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+ int irq_flags;
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+
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spinlock_t wl_lock;
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enum wlcore_state state;
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@@ -393,9 +395,6 @@ struct wl1271 {
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/* Quirks of specific hardware revisions */
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unsigned int quirks;
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- /* Platform limitations */
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- unsigned int platform_quirks;
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-
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/* number of currently active RX BA sessions */
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int ba_rx_session_count;
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@ -0,0 +1,48 @@
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The pwr_in_suspend flag depends on the MMC settings which can be
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retrieved from the SDIO subsystem, so it doesn't need to be part of
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the platform data structure. Move it to the platform device data that
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is passed from SDIO to wlcore.
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Signed-off-by: Luciano Coelho <coelho@ti.com>
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Reviewed-by: Felipe Balbi <balbi@ti.com>
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--- a/drivers/net/wireless/ti/wlcore/main.c
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+++ b/drivers/net/wireless/ti/wlcore/main.c
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@@ -6065,7 +6065,6 @@ static void wlcore_nvs_cb(const struct f
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struct wl1271 *wl = context;
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struct platform_device *pdev = wl->pdev;
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struct wlcore_platdev_data *pdev_data = dev_get_platdata(&pdev->dev);
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- struct wl12xx_platform_data *pdata = pdev_data->pdata;
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int ret;
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irq_handler_t hardirq_fn = NULL;
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@@ -6115,7 +6114,7 @@ static void wlcore_nvs_cb(const struct f
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if (!ret) {
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wl->irq_wake_enabled = true;
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device_init_wakeup(wl->dev, 1);
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- if (pdata->pwr_in_suspend)
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+ if (pdev_data->pwr_in_suspend)
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wl->hw->wiphy->wowlan = &wlcore_wowlan_support;
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}
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#endif
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--- a/drivers/net/wireless/ti/wlcore/sdio.c
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+++ b/drivers/net/wireless/ti/wlcore/sdio.c
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@@ -260,7 +260,7 @@ static int wl1271_probe(struct sdio_func
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dev_dbg(glue->dev, "sdio PM caps = 0x%x\n", mmcflags);
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if (mmcflags & MMC_PM_KEEP_POWER)
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- pdev_data->pdata->pwr_in_suspend = true;
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+ pdev_data->pwr_in_suspend = true;
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sdio_set_drvdata(func, glue);
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--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
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+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
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@@ -209,6 +209,7 @@ struct wl1271_if_operations {
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struct wlcore_platdev_data {
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struct wl12xx_platform_data *pdata;
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struct wl1271_if_operations *if_ops;
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+ bool pwr_in_suspend;
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};
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#define MAX_NUM_KEYS 14
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@ -0,0 +1,131 @@
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Instead of defining an enumeration with the FW specific values for the
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different clock rates, use the actual frequency instead. Also add a
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boolean to specify whether the clock is XTAL or not.
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Change all board files to reflect this.
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Additionally, this reverts commit 26f45c (ARM: OMAP2+: Legacy support
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for wl12xx when booted with devicetree), since this is not be needed
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anymore, now that DT support for WiLink is implemented.
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Cc: Tony Lindgren <tony@atomide.com>
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Cc: Sekhar Nori <nsekhar@ti.com>
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Signed-off-by: Luciano Coelho <coelho@ti.com>
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Reviewed-by: Felipe Balbi <balbi@ti.com>
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--- a/drivers/net/wireless/ti/wl12xx/main.c
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+++ b/drivers/net/wireless/ti/wl12xx/main.c
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@@ -1711,6 +1711,43 @@ static struct ieee80211_sta_ht_cap wl12x
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},
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};
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+static const struct wl12xx_clock wl12xx_refclock_table[] = {
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+ { 19200000, false, WL12XX_REFCLOCK_19 },
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+ { 26000000, false, WL12XX_REFCLOCK_26 },
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+ { 26000000, true, WL12XX_REFCLOCK_26_XTAL },
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+ { 38400000, false, WL12XX_REFCLOCK_38 },
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+ { 38400000, true, WL12XX_REFCLOCK_38_XTAL },
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+ { 52000000, false, WL12XX_REFCLOCK_52 },
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+ { 0, false, 0 }
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+};
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+
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+static const struct wl12xx_clock wl12xx_tcxoclock_table[] = {
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+ { 16368000, true, WL12XX_TCXOCLOCK_16_368 },
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+ { 16800000, true, WL12XX_TCXOCLOCK_16_8 },
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+ { 19200000, true, WL12XX_TCXOCLOCK_19_2 },
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+ { 26000000, true, WL12XX_TCXOCLOCK_26 },
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+ { 32736000, true, WL12XX_TCXOCLOCK_32_736 },
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+ { 33600000, true, WL12XX_TCXOCLOCK_33_6 },
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+ { 38400000, true, WL12XX_TCXOCLOCK_38_4 },
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+ { 52000000, true, WL12XX_TCXOCLOCK_52 },
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+ { 0, false, 0 }
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+};
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+
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+static int wl12xx_get_clock_idx(const struct wl12xx_clock *table,
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+ u32 freq, bool xtal)
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+{
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+ int i = 0;
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+
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+ while(table[i].freq != 0) {
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+ if ((table[i].freq == freq) &&
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+ (table[i].xtal == xtal))
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+ return table[i].hw_idx;
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+ i++;
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+ };
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+
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+ return -EINVAL;
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+}
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+
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static int wl12xx_setup(struct wl1271 *wl)
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{
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struct wl12xx_priv *priv = wl->priv;
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@@ -1732,7 +1769,16 @@ static int wl12xx_setup(struct wl1271 *w
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wl12xx_conf_init(wl);
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if (!fref_param) {
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- priv->ref_clock = pdata->board_ref_clock;
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+ priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
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+ pdata->ref_clock_freq,
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+ pdata->ref_clock_xtal);
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+ if (priv->ref_clock < 0) {
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+ wl1271_error("Invalid ref_clock frequency (%d Hz, %s)",
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+ pdata->ref_clock_freq,
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+ pdata->ref_clock_xtal ? "XTAL" : "not XTAL");
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+
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+ return priv->ref_clock;
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+ }
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} else {
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if (!strcmp(fref_param, "19.2"))
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priv->ref_clock = WL12XX_REFCLOCK_19;
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@@ -1751,7 +1797,15 @@ static int wl12xx_setup(struct wl1271 *w
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}
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if (!tcxo_param) {
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- priv->tcxo_clock = pdata->board_tcxo_clock;
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+ priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
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+ pdata->tcxo_clock_freq,
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+ true);
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+ if (priv->tcxo_clock < 0) {
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+ wl1271_error("Invalid tcxo_clock frequency (%d Hz)",
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+ pdata->tcxo_clock_freq);
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+
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+ return priv->tcxo_clock;
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+ }
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} else {
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if (!strcmp(tcxo_param, "19.2"))
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priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
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--- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
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+++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
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@@ -79,4 +79,32 @@ struct wl12xx_priv {
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struct wl127x_rx_mem_pool_addr *rx_mem_addr;
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};
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+/* Reference clock values */
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+enum {
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+ WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
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+ WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
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+ WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
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+ WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
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+ WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
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||||
+ WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
|
||||
+};
|
||||
+
|
||||
+/* TCXO clock values */
|
||||
+enum {
|
||||
+ WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
|
||||
+ WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
|
||||
+ WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
|
||||
+ WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
|
||||
+ WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
|
||||
+ WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
|
||||
+ WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
|
||||
+ WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
|
||||
+};
|
||||
+
|
||||
+struct wl12xx_clock {
|
||||
+ u32 freq;
|
||||
+ bool xtal;
|
||||
+ u8 hw_idx;
|
||||
+};
|
||||
+
|
||||
#endif /* __WL12XX_PRIV_H__ */
|
||||
|
|
@ -0,0 +1,118 @@
|
|||
If platform data is not available, try to get the required information
|
||||
from the device tree. Register an OF match table and parse the
|
||||
appropriate device tree nodes.
|
||||
|
||||
Parse interrupt property only, for now.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -30,7 +30,7 @@
|
||||
#include <linux/mmc/sdio_ids.h>
|
||||
#include <linux/mmc/card.h>
|
||||
#include <linux/mmc/host.h>
|
||||
-#include <linux/gpio.h>
|
||||
+#include <linux/of_irq.h>
|
||||
#include <linux/wl12xx.h>
|
||||
#include <linux/pm_runtime.h>
|
||||
#include <linux/printk.h>
|
||||
@@ -214,6 +214,43 @@ static struct wl1271_if_operations sdio_
|
||||
.set_block_size = wl1271_sdio_set_block_size,
|
||||
};
|
||||
|
||||
+static struct wl12xx_platform_data *wlcore_get_pdata_from_of(struct device *dev)
|
||||
+{
|
||||
+ struct wl12xx_platform_data *pdata;
|
||||
+ struct device_node *np = dev->of_node;
|
||||
+
|
||||
+ if (!np) {
|
||||
+ np = of_find_matching_node(NULL, dev->driver->of_match_table);
|
||||
+ if (!np) {
|
||||
+ dev_notice(dev, "device tree node not available\n");
|
||||
+ pdata = ERR_PTR(-ENODEV);
|
||||
+ goto out;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
|
||||
+ if (!pdata) {
|
||||
+ dev_err(dev, "can't allocate platform data\n");
|
||||
+ pdata = ERR_PTR(-ENODEV);
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ pdata->irq = irq_of_parse_and_map(np, 0);
|
||||
+ if (pdata->irq < 0) {
|
||||
+ dev_err(dev, "can't get interrupt gpio from the device tree\n");
|
||||
+ goto out_free;
|
||||
+ }
|
||||
+
|
||||
+ goto out;
|
||||
+
|
||||
+out_free:
|
||||
+ kfree(pdata);
|
||||
+ pdata = ERR_PTR(-ENODEV);
|
||||
+
|
||||
+out:
|
||||
+ return pdata;
|
||||
+}
|
||||
+
|
||||
static int wl1271_probe(struct sdio_func *func,
|
||||
const struct sdio_device_id *id)
|
||||
{
|
||||
@@ -248,11 +285,22 @@ static int wl1271_probe(struct sdio_func
|
||||
/* Use block mode for transferring over one block size of data */
|
||||
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
|
||||
|
||||
+ /* The pdata allocated here is freed when the device is freed,
|
||||
+ * so we don't need an additional out label to free it in case
|
||||
+ * of error further on.
|
||||
+ */
|
||||
+
|
||||
+ /* Try to get legacy platform data from the board file */
|
||||
pdev_data->pdata = wl12xx_get_platform_data();
|
||||
if (IS_ERR(pdev_data->pdata)) {
|
||||
- ret = PTR_ERR(pdev_data->pdata);
|
||||
- dev_err(glue->dev, "missing wlan platform data: %d\n", ret);
|
||||
- goto out_free_glue;
|
||||
+ dev_info(&func->dev,
|
||||
+ "legacy platform data not found, trying device tree\n");
|
||||
+
|
||||
+ pdev_data->pdata = wlcore_get_pdata_from_of(&func->dev);
|
||||
+ if (IS_ERR(pdev_data->pdata)) {
|
||||
+ dev_err(&func->dev, "can't get platform data\n");
|
||||
+ goto out_free_glue;
|
||||
+ }
|
||||
}
|
||||
|
||||
/* if sdio can keep power while host is suspended, enable wow */
|
||||
@@ -386,16 +434,25 @@ static const struct dev_pm_ops wl1271_sd
|
||||
};
|
||||
#endif
|
||||
|
||||
+static const struct of_device_id wlcore_sdio_of_match_table[] = {
|
||||
+ { .compatible = "ti,wilink6" },
|
||||
+ { .compatible = "ti,wilink7" },
|
||||
+ { .compatible = "ti,wilink8" },
|
||||
+ { }
|
||||
+};
|
||||
+MODULE_DEVICE_TABLE(of, wlcore_sdio_of_match_table);
|
||||
+
|
||||
static struct sdio_driver wl1271_sdio_driver = {
|
||||
.name = "wl1271_sdio",
|
||||
.id_table = wl1271_devices,
|
||||
.probe = wl1271_probe,
|
||||
.remove = wl1271_remove,
|
||||
-#ifdef CONFIG_PM
|
||||
.drv = {
|
||||
+#ifdef CONFIG_PM
|
||||
.pm = &wl1271_sdio_pm_ops,
|
||||
- },
|
||||
#endif
|
||||
+ .of_match_table = of_match_ptr(wlcore_sdio_of_match_table),
|
||||
+ },
|
||||
};
|
||||
|
||||
static int __init wl1271_init(void)
|
||||
|
|
@ -0,0 +1,50 @@
|
|||
Add refclock and tcxoclock as clock providers in WiLink. These clocks
|
||||
are not accesible outside the WiLink module, but they are registered
|
||||
in the clock framework anyway. Only the WiLink chip consumes these
|
||||
clocks.
|
||||
|
||||
In theory, the WiLink chip could be connected to external clocks
|
||||
instead of using these internal clocks, so make the clock consumer
|
||||
code generic enough. If external clocks are used, then the internal
|
||||
clock device tree nodes are not necessary, but the external ones must
|
||||
be specified.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -34,6 +34,7 @@
|
||||
#include <linux/wl12xx.h>
|
||||
#include <linux/pm_runtime.h>
|
||||
#include <linux/printk.h>
|
||||
+#include <linux/clk-provider.h>
|
||||
|
||||
#include "wlcore.h"
|
||||
#include "wl12xx_80211.h"
|
||||
@@ -214,10 +215,15 @@ static struct wl1271_if_operations sdio_
|
||||
.set_block_size = wl1271_sdio_set_block_size,
|
||||
};
|
||||
|
||||
+static const struct of_device_id wlcore_sdio_of_clk_match_table[] = {
|
||||
+ { .compatible = "ti,wilink-clock" },
|
||||
+};
|
||||
+
|
||||
static struct wl12xx_platform_data *wlcore_get_pdata_from_of(struct device *dev)
|
||||
{
|
||||
struct wl12xx_platform_data *pdata;
|
||||
struct device_node *np = dev->of_node;
|
||||
+ struct device_node *clock_node;
|
||||
|
||||
if (!np) {
|
||||
np = of_find_matching_node(NULL, dev->driver->of_match_table);
|
||||
@@ -241,6 +247,9 @@ static struct wl12xx_platform_data *wlco
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
+ for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
|
||||
+ of_fixed_clk_setup(clock_node);
|
||||
+
|
||||
goto out;
|
||||
|
||||
out_free:
|
||||
|
|
@ -0,0 +1,90 @@
|
|||
Read the clock nodes from the device tree and use them to set the
|
||||
frequency for the refclock and the tcxo clock.
|
||||
|
||||
Also, call sdio_set_drvdata() earlier, so the glue is already set in
|
||||
the driver data when we call wlcore_get_pdata_from_of() and we don't
|
||||
need to pass it as a parameter.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -53,6 +53,7 @@ static bool dump = false;
|
||||
struct wl12xx_sdio_glue {
|
||||
struct device *dev;
|
||||
struct platform_device *core;
|
||||
+ struct clk *refclock, *tcxoclock;
|
||||
};
|
||||
|
||||
static const struct sdio_device_id wl1271_devices[] = {
|
||||
@@ -224,6 +225,7 @@ static struct wl12xx_platform_data *wlco
|
||||
struct wl12xx_platform_data *pdata;
|
||||
struct device_node *np = dev->of_node;
|
||||
struct device_node *clock_node;
|
||||
+ struct wl12xx_sdio_glue *glue = sdio_get_drvdata(dev_to_sdio_func(dev));
|
||||
|
||||
if (!np) {
|
||||
np = of_find_matching_node(NULL, dev->driver->of_match_table);
|
||||
@@ -250,6 +252,26 @@ static struct wl12xx_platform_data *wlco
|
||||
for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
|
||||
of_fixed_clk_setup(clock_node);
|
||||
|
||||
+ /* TODO: make sure we have this when needed (ie. for WL6 and WL7) */
|
||||
+ glue->refclock = of_clk_get_by_name(np, "refclock");
|
||||
+ if (IS_ERR(glue->refclock)) {
|
||||
+ dev_err(dev, "couldn't find refclock on the device tree\n");
|
||||
+ glue->refclock = NULL;
|
||||
+ } else {
|
||||
+ clk_prepare_enable(glue->refclock);
|
||||
+ pdata->ref_clock_freq = clk_get_rate(glue->refclock);
|
||||
+ }
|
||||
+
|
||||
+ /* TODO: make sure we have this when needed (ie. for WL7) */
|
||||
+ glue->tcxoclock = of_clk_get_by_name(np, "tcxoclock");
|
||||
+ if (IS_ERR(glue->tcxoclock)) {
|
||||
+ dev_err(dev, "couldn't find tcxoclock on the device tree\n");
|
||||
+ glue->tcxoclock = NULL;
|
||||
+ } else {
|
||||
+ clk_prepare_enable(glue->tcxoclock);
|
||||
+ pdata->ref_clock_freq = clk_get_rate(glue->tcxoclock);
|
||||
+ }
|
||||
+
|
||||
goto out;
|
||||
|
||||
out_free:
|
||||
@@ -294,6 +316,8 @@ static int wl1271_probe(struct sdio_func
|
||||
/* Use block mode for transferring over one block size of data */
|
||||
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
|
||||
|
||||
+ sdio_set_drvdata(func, glue);
|
||||
+
|
||||
/* The pdata allocated here is freed when the device is freed,
|
||||
* so we don't need an additional out label to free it in case
|
||||
* of error further on.
|
||||
@@ -319,8 +343,6 @@ static int wl1271_probe(struct sdio_func
|
||||
if (mmcflags & MMC_PM_KEEP_POWER)
|
||||
pdev_data->pwr_in_suspend = true;
|
||||
|
||||
- sdio_set_drvdata(func, glue);
|
||||
-
|
||||
/* Tell PM core that we don't need the card to be powered now */
|
||||
pm_runtime_put_noidle(&func->dev);
|
||||
|
||||
@@ -387,6 +409,16 @@ static void wl1271_remove(struct sdio_fu
|
||||
{
|
||||
struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func);
|
||||
|
||||
+ if (glue->refclock) {
|
||||
+ clk_disable_unprepare(glue->refclock);
|
||||
+ clk_put(glue->refclock);
|
||||
+ }
|
||||
+
|
||||
+ if (glue->tcxoclock) {
|
||||
+ clk_disable_unprepare(glue->tcxoclock);
|
||||
+ clk_put(glue->tcxoclock);
|
||||
+ }
|
||||
+
|
||||
/* Undo decrement done above in wl1271_probe */
|
||||
pm_runtime_get_noresume(&func->dev);
|
||||
|
||||
|
|
@ -0,0 +1,96 @@
|
|||
The fref and the tcxo clocks settings are optional in some platforms.
|
||||
WiLink8 doesn't need either, so we don't check the values. WiLink 6
|
||||
only needs the fref clock, so we check that it is valid or return with
|
||||
an error. WiLink7 needs both clocks, if either is not available we
|
||||
return with an error.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
--- a/drivers/net/wireless/ti/wl12xx/main.c
|
||||
+++ b/drivers/net/wireless/ti/wl12xx/main.c
|
||||
@@ -930,6 +930,11 @@ static int wl128x_boot_clk(struct wl1271
|
||||
u16 sys_clk_cfg;
|
||||
int ret;
|
||||
|
||||
+ if ((priv->ref_clock < 0) || (priv->tcxo_clock < 0)) {
|
||||
+ wl1271_error("Missing fref and/or tcxo clock settings\n");
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
/* For XTAL-only modes, FREF will be used after switching from TCXO */
|
||||
if (priv->ref_clock == WL12XX_REFCLOCK_26_XTAL ||
|
||||
priv->ref_clock == WL12XX_REFCLOCK_38_XTAL) {
|
||||
@@ -979,6 +984,11 @@ static int wl127x_boot_clk(struct wl1271
|
||||
u32 clk;
|
||||
int ret;
|
||||
|
||||
+ if (priv->ref_clock < 0) {
|
||||
+ wl1271_error("Missing fref clock settings\n");
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
if (WL127X_PG_GET_MAJOR(wl->hw_pg_ver) < 3)
|
||||
wl->quirks |= WLCORE_QUIRK_END_OF_TRANSACTION;
|
||||
|
||||
@@ -1768,7 +1778,7 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
wlcore_set_ht_cap(wl, IEEE80211_BAND_5GHZ, &wl12xx_ht_cap);
|
||||
wl12xx_conf_init(wl);
|
||||
|
||||
- if (!fref_param) {
|
||||
+ if (!fref_param && (pdata->ref_clock_freq > 0)) {
|
||||
priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
|
||||
pdata->ref_clock_freq,
|
||||
pdata->ref_clock_xtal);
|
||||
@@ -1779,6 +1789,8 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
|
||||
return priv->ref_clock;
|
||||
}
|
||||
+ } else if (!fref_param) {
|
||||
+ priv->ref_clock = -EINVAL;
|
||||
} else {
|
||||
if (!strcmp(fref_param, "19.2"))
|
||||
priv->ref_clock = WL12XX_REFCLOCK_19;
|
||||
@@ -1796,7 +1808,7 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
wl1271_error("Invalid fref parameter %s", fref_param);
|
||||
}
|
||||
|
||||
- if (!tcxo_param) {
|
||||
+ if (!fref_param && (pdata->tcxo_clock_freq > 0)) {
|
||||
priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
|
||||
pdata->tcxo_clock_freq,
|
||||
true);
|
||||
@@ -1806,7 +1818,9 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
|
||||
return priv->tcxo_clock;
|
||||
}
|
||||
- } else {
|
||||
+ } else if (!fref_param) {
|
||||
+ priv->tcxo_clock = -EINVAL;
|
||||
+ }else {
|
||||
if (!strcmp(tcxo_param, "19.2"))
|
||||
priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
|
||||
else if (!strcmp(tcxo_param, "26"))
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -252,20 +252,16 @@ static struct wl12xx_platform_data *wlco
|
||||
for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
|
||||
of_fixed_clk_setup(clock_node);
|
||||
|
||||
- /* TODO: make sure we have this when needed (ie. for WL6 and WL7) */
|
||||
glue->refclock = of_clk_get_by_name(np, "refclock");
|
||||
if (IS_ERR(glue->refclock)) {
|
||||
- dev_err(dev, "couldn't find refclock on the device tree\n");
|
||||
glue->refclock = NULL;
|
||||
} else {
|
||||
clk_prepare_enable(glue->refclock);
|
||||
pdata->ref_clock_freq = clk_get_rate(glue->refclock);
|
||||
}
|
||||
|
||||
- /* TODO: make sure we have this when needed (ie. for WL7) */
|
||||
glue->tcxoclock = of_clk_get_by_name(np, "tcxoclock");
|
||||
if (IS_ERR(glue->tcxoclock)) {
|
||||
- dev_err(dev, "couldn't find tcxoclock on the device tree\n");
|
||||
glue->tcxoclock = NULL;
|
||||
} else {
|
||||
clk_prepare_enable(glue->tcxoclock);
|
||||
|
|
@ -0,0 +1,198 @@
|
|||
Move the wl1251 part of the wl12xx platform data structure into a new
|
||||
structure specifically for wl1251. Change the platform data built-in
|
||||
block and board files accordingly.
|
||||
|
||||
Cc: Tony Lindgren <tony@atomide.com>
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Acked-by: Tony Lindgren <tony@atomide.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
arch/arm/mach-omap2/board-omap3pandora.c | 4 +--
|
||||
arch/arm/mach-omap2/board-rx51-peripherals.c | 2 +-
|
||||
drivers/net/wireless/ti/wilink_platform_data.c | 37 +++++++++++++++++++++-----
|
||||
drivers/net/wireless/ti/wl1251/sdio.c | 12 ++++-----
|
||||
drivers/net/wireless/ti/wl1251/spi.c | 2 +-
|
||||
include/linux/wl12xx.h | 22 ++++++++++++++-
|
||||
6 files changed, 62 insertions(+), 17 deletions(-)
|
||||
|
||||
--- a/arch/arm/mach-omap2/board-omap3pandora.c
|
||||
+++ b/arch/arm/mach-omap2/board-omap3pandora.c
|
||||
@@ -536,7 +536,7 @@ static struct spi_board_info omap3pandor
|
||||
|
||||
static void __init pandora_wl1251_init(void)
|
||||
{
|
||||
- struct wl12xx_platform_data pandora_wl1251_pdata;
|
||||
+ struct wl1251_platform_data pandora_wl1251_pdata;
|
||||
int ret;
|
||||
|
||||
memset(&pandora_wl1251_pdata, 0, sizeof(pandora_wl1251_pdata));
|
||||
@@ -550,7 +550,7 @@ static void __init pandora_wl1251_init(v
|
||||
goto fail_irq;
|
||||
|
||||
pandora_wl1251_pdata.use_eeprom = true;
|
||||
- ret = wl12xx_set_platform_data(&pandora_wl1251_pdata);
|
||||
+ ret = wl1251_set_platform_data(&pandora_wl1251_pdata);
|
||||
if (ret < 0)
|
||||
goto fail_irq;
|
||||
|
||||
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
|
||||
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
|
||||
@@ -82,7 +82,7 @@ enum {
|
||||
RX51_SPI_MIPID, /* LCD panel */
|
||||
};
|
||||
|
||||
-static struct wl12xx_platform_data wl1251_pdata;
|
||||
+static struct wl1251_platform_data wl1251_pdata;
|
||||
static struct tsc2005_platform_data tsc2005_pdata;
|
||||
|
||||
#if defined(CONFIG_SENSORS_LIS3_I2C) || defined(CONFIG_SENSORS_LIS3_I2C_MODULE)
|
||||
--- a/drivers/net/wireless/ti/wilink_platform_data.c
|
||||
+++ b/drivers/net/wireless/ti/wilink_platform_data.c
|
||||
@@ -23,17 +23,17 @@
|
||||
#include <linux/err.h>
|
||||
#include <linux/wl12xx.h>
|
||||
|
||||
-static struct wl12xx_platform_data *platform_data;
|
||||
+static struct wl12xx_platform_data *wl12xx_platform_data;
|
||||
|
||||
int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data)
|
||||
{
|
||||
- if (platform_data)
|
||||
+ if (wl12xx_platform_data)
|
||||
return -EBUSY;
|
||||
if (!data)
|
||||
return -EINVAL;
|
||||
|
||||
- platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
|
||||
- if (!platform_data)
|
||||
+ wl12xx_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
|
||||
+ if (!wl12xx_platform_data)
|
||||
return -ENOMEM;
|
||||
|
||||
return 0;
|
||||
@@ -41,9 +41,34 @@ int __init wl12xx_set_platform_data(cons
|
||||
|
||||
struct wl12xx_platform_data *wl12xx_get_platform_data(void)
|
||||
{
|
||||
- if (!platform_data)
|
||||
+ if (!wl12xx_platform_data)
|
||||
return ERR_PTR(-ENODEV);
|
||||
|
||||
- return platform_data;
|
||||
+ return wl12xx_platform_data;
|
||||
}
|
||||
EXPORT_SYMBOL(wl12xx_get_platform_data);
|
||||
+
|
||||
+static struct wl1251_platform_data *wl1251_platform_data;
|
||||
+
|
||||
+int __init wl1251_set_platform_data(const struct wl1251_platform_data *data)
|
||||
+{
|
||||
+ if (wl1251_platform_data)
|
||||
+ return -EBUSY;
|
||||
+ if (!data)
|
||||
+ return -EINVAL;
|
||||
+
|
||||
+ wl1251_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
|
||||
+ if (!wl1251_platform_data)
|
||||
+ return -ENOMEM;
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+struct wl1251_platform_data *wl1251_get_platform_data(void)
|
||||
+{
|
||||
+ if (!wl1251_platform_data)
|
||||
+ return ERR_PTR(-ENODEV);
|
||||
+
|
||||
+ return wl1251_platform_data;
|
||||
+}
|
||||
+EXPORT_SYMBOL(wl1251_get_platform_data);
|
||||
--- a/drivers/net/wireless/ti/wl1251/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wl1251/sdio.c
|
||||
@@ -227,7 +227,7 @@ static int wl1251_sdio_probe(struct sdio
|
||||
struct wl1251 *wl;
|
||||
struct ieee80211_hw *hw;
|
||||
struct wl1251_sdio *wl_sdio;
|
||||
- const struct wl12xx_platform_data *wl12xx_board_data;
|
||||
+ const struct wl1251_platform_data *wl1251_board_data;
|
||||
|
||||
hw = wl1251_alloc_hw();
|
||||
if (IS_ERR(hw))
|
||||
@@ -254,11 +254,11 @@ static int wl1251_sdio_probe(struct sdio
|
||||
wl->if_priv = wl_sdio;
|
||||
wl->if_ops = &wl1251_sdio_ops;
|
||||
|
||||
- wl12xx_board_data = wl12xx_get_platform_data();
|
||||
- if (!IS_ERR(wl12xx_board_data)) {
|
||||
- wl->set_power = wl12xx_board_data->set_power;
|
||||
- wl->irq = wl12xx_board_data->irq;
|
||||
- wl->use_eeprom = wl12xx_board_data->use_eeprom;
|
||||
+ wl1251_board_data = wl1251_get_platform_data();
|
||||
+ if (!IS_ERR(wl1251_board_data)) {
|
||||
+ wl->set_power = wl1251_board_data->set_power;
|
||||
+ wl->irq = wl1251_board_data->irq;
|
||||
+ wl->use_eeprom = wl1251_board_data->use_eeprom;
|
||||
}
|
||||
|
||||
if (wl->irq) {
|
||||
--- a/drivers/net/wireless/ti/wl1251/spi.c
|
||||
+++ b/drivers/net/wireless/ti/wl1251/spi.c
|
||||
@@ -238,7 +238,7 @@ static const struct wl1251_if_operations
|
||||
|
||||
static int wl1251_spi_probe(struct spi_device *spi)
|
||||
{
|
||||
- struct wl12xx_platform_data *pdata;
|
||||
+ struct wl1251_platform_data *pdata;
|
||||
struct ieee80211_hw *hw;
|
||||
struct wl1251 *wl;
|
||||
int ret;
|
||||
--- a/include/linux/wl12xx.h
|
||||
+++ b/include/linux/wl12xx.h
|
||||
@@ -48,11 +48,15 @@ enum {
|
||||
WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
|
||||
};
|
||||
|
||||
-struct wl12xx_platform_data {
|
||||
+struct wl1251_platform_data {
|
||||
void (*set_power)(bool enable);
|
||||
/* SDIO only: IRQ number if WLAN_IRQ line is used, 0 for SDIO IRQs */
|
||||
int irq;
|
||||
bool use_eeprom;
|
||||
+};
|
||||
+
|
||||
+struct wl12xx_platform_data {
|
||||
+ int irq;
|
||||
int board_ref_clock;
|
||||
int board_tcxo_clock;
|
||||
unsigned long platform_quirks;
|
||||
@@ -68,6 +72,10 @@ int wl12xx_set_platform_data(const struc
|
||||
|
||||
struct wl12xx_platform_data *wl12xx_get_platform_data(void);
|
||||
|
||||
+int wl1251_set_platform_data(const struct wl1251_platform_data *data);
|
||||
+
|
||||
+struct wl1251_platform_data *wl1251_get_platform_data(void);
|
||||
+
|
||||
#else
|
||||
|
||||
static inline
|
||||
@@ -81,6 +89,18 @@ struct wl12xx_platform_data *wl12xx_get_
|
||||
{
|
||||
return ERR_PTR(-ENODATA);
|
||||
}
|
||||
+
|
||||
+static inline
|
||||
+int wl1251_set_platform_data(const struct wl1251_platform_data *data)
|
||||
+{
|
||||
+ return -ENOSYS;
|
||||
+}
|
||||
+
|
||||
+static inline
|
||||
+struct wl1251_platform_data *wl1251_get_platform_data(void)
|
||||
+{
|
||||
+ return ERR_PTR(-ENODATA);
|
||||
+}
|
||||
|
||||
#endif
|
||||
|
||||
|
|
@ -0,0 +1,237 @@
|
|||
The platform_quirk element in the platform data was used to change the
|
||||
way the IRQ is triggered. When set, the EDGE_IRQ quirk would change
|
||||
the irqflags used and treat edge trigger differently from the rest.
|
||||
|
||||
Instead of hiding this irq flag setting behind the quirk, have the
|
||||
board files set the flags during initialization. This will be more
|
||||
meaningful than driver-specific quirks when we switch to DT.
|
||||
|
||||
Additionally, fix missing gpio_request() calls in the boarding files
|
||||
(so that setting the flags actually works).
|
||||
|
||||
Cc: Tony Lindgren <tony@atomide.com>
|
||||
Cc: Sekhar Nori <nsekhar@ti.com>
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
Acked-by: Sekhar Nori <nsekhar@ti.com>
|
||||
|
||||
---
|
||||
arch/arm/mach-davinci/board-da850-evm.c | 8 +++++++-
|
||||
arch/arm/mach-omap2/board-omap3evm.c | 19 ++++++++++++++++++
|
||||
arch/arm/mach-omap2/board-zoom-peripherals.c | 30 +++++++++++++++++++++++++---
|
||||
drivers/net/wireless/ti/wlcore/debugfs.c | 2 +-
|
||||
drivers/net/wireless/ti/wlcore/main.c | 17 ++++++++--------
|
||||
drivers/net/wireless/ti/wlcore/wlcore.h | 5 ++---
|
||||
include/linux/wl12xx.h | 4 ----
|
||||
7 files changed, 64 insertions(+), 21 deletions(-)
|
||||
|
||||
--- a/arch/arm/mach-davinci/board-da850-evm.c
|
||||
+++ b/arch/arm/mach-davinci/board-da850-evm.c
|
||||
@@ -1371,7 +1371,6 @@ static const short da850_wl12xx_pins[] _
|
||||
static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
|
||||
.irq = -1,
|
||||
.board_ref_clock = WL12XX_REFCLOCK_38,
|
||||
- .platform_quirks = WL12XX_PLATFORM_QUIRK_EDGE_IRQ,
|
||||
};
|
||||
|
||||
static __init int da850_wl12xx_init(void)
|
||||
@@ -1402,6 +1401,13 @@ static __init int da850_wl12xx_init(void
|
||||
goto free_wlan_en;
|
||||
}
|
||||
|
||||
+ ret = irq_set_irq_type(gpio_to_irq(DA850_WLAN_IRQ),
|
||||
+ IRQ_TYPE_EDGE_RISING);
|
||||
+ if (ret) {
|
||||
+ pr_err("Could not set wl12xx irq type: %d\n", ret);
|
||||
+ goto free;
|
||||
+ }
|
||||
+
|
||||
da850_wl12xx_wlan_data.irq = gpio_to_irq(DA850_WLAN_IRQ);
|
||||
|
||||
ret = wl12xx_set_platform_data(&da850_wl12xx_wlan_data);
|
||||
--- a/arch/arm/mach-omap2/board-omap3evm.c
|
||||
+++ b/arch/arm/mach-omap2/board-omap3evm.c
|
||||
@@ -627,12 +627,31 @@ static void __init omap3_evm_wl12xx_init
|
||||
|
||||
/* WL12xx WLAN Init */
|
||||
omap3evm_wlan_data.irq = gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO);
|
||||
+
|
||||
+ ret = gpio_request_one(OMAP3EVM_WLAN_IRQ_GPIO, GPIOF_IN,
|
||||
+ "OMAP3EVM_WLAN_IRQ_GPIO");
|
||||
+ if (ret) {
|
||||
+ pr_err("error requesting wl12xx gpio: %d\n", ret);
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ ret = irq_set_irq_type(gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO),
|
||||
+ IRQ_TYPE_LEVEL_HIGH);
|
||||
+ if (ret) {
|
||||
+ pr_err("error setting wl12xx irq type: %d\n", ret);
|
||||
+ goto free;
|
||||
+ }
|
||||
+
|
||||
ret = wl12xx_set_platform_data(&omap3evm_wlan_data);
|
||||
if (ret)
|
||||
pr_err("error setting wl12xx data: %d\n", ret);
|
||||
ret = platform_device_register(&omap3evm_wlan_regulator);
|
||||
if (ret)
|
||||
pr_err("error registering wl12xx device: %d\n", ret);
|
||||
+out:
|
||||
+ return;
|
||||
+free:
|
||||
+ gpio_free(OMAP3EVM_WLAN_IRQ_GPIO);
|
||||
#endif
|
||||
}
|
||||
|
||||
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
|
||||
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
|
||||
@@ -339,16 +339,40 @@ static void enable_board_wakeup_source(v
|
||||
OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP);
|
||||
}
|
||||
|
||||
-void __init zoom_peripherals_init(void)
|
||||
+static void __init zoom_wilink_init(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
omap_zoom_wlan_data.irq = gpio_to_irq(OMAP_ZOOM_WLAN_IRQ_GPIO);
|
||||
- ret = wl12xx_set_platform_data(&omap_zoom_wlan_data);
|
||||
|
||||
- if (ret)
|
||||
+ ret = gpio_request_one(OMAP_ZOOM_WLAN_IRQ_GPIO, GPIOF_IN,
|
||||
+ "OMAP_ZOOM_WLAN_IRQ_GPIO");
|
||||
+ if (ret) {
|
||||
+ pr_err("error requesting wl12xx gpio: %d\n", ret);
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ ret = irq_set_irq_type(gpio_to_irq(OMAP_ZOOM_WLAN_IRQ_GPIO),
|
||||
+ IRQ_TYPE_LEVEL_HIGH);
|
||||
+ if (ret) {
|
||||
+ pr_err("error setting wl12xx irq type: %d\n", ret);
|
||||
+ goto free;
|
||||
+ }
|
||||
+
|
||||
+ ret = wl12xx_set_platform_data(&omap_zoom_wlan_data);
|
||||
+ if (ret) {
|
||||
pr_err("error setting wl12xx data: %d\n", ret);
|
||||
+ goto free;
|
||||
+ }
|
||||
+out:
|
||||
+ return;
|
||||
+free:
|
||||
+ gpio_free(OMAP_ZOOM_WLAN_IRQ_GPIO);
|
||||
+}
|
||||
|
||||
+void __init zoom_peripherals_init(void)
|
||||
+{
|
||||
+ zoom_wilink_init();
|
||||
omap_hsmmc_init(mmc);
|
||||
omap_i2c_init();
|
||||
pwm_add_table(zoom_pwm_lookup, ARRAY_SIZE(zoom_pwm_lookup));
|
||||
--- a/drivers/net/wireless/ti/wlcore/debugfs.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
|
||||
@@ -486,7 +486,7 @@ static ssize_t driver_state_read(struct
|
||||
DRIVER_STATE_PRINT_HEX(irq);
|
||||
/* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
|
||||
DRIVER_STATE_PRINT_HEX(hw_pg_ver);
|
||||
- DRIVER_STATE_PRINT_HEX(platform_quirks);
|
||||
+ DRIVER_STATE_PRINT_HEX(irq_flags);
|
||||
DRIVER_STATE_PRINT_HEX(chip.id);
|
||||
DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
|
||||
DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
|
||||
--- a/drivers/net/wireless/ti/wlcore/main.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/main.c
|
||||
@@ -27,6 +27,7 @@
|
||||
#include <linux/vmalloc.h>
|
||||
#include <linux/wl12xx.h>
|
||||
#include <linux/interrupt.h>
|
||||
+#include <linux/irq.h>
|
||||
|
||||
#include "wlcore.h"
|
||||
#include "debug.h"
|
||||
@@ -516,7 +517,7 @@ static int wlcore_irq_locked(struct wl12
|
||||
* In case edge triggered interrupt must be used, we cannot iterate
|
||||
* more than once without introducing race conditions with the hardirq.
|
||||
*/
|
||||
- if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
|
||||
+ if (wl->irq_flags & IRQF_TRIGGER_RISING)
|
||||
loopcount = 1;
|
||||
|
||||
wl1271_debug(DEBUG_IRQ, "IRQ work");
|
||||
@@ -5766,7 +5767,6 @@ struct ieee80211_hw *wlcore_alloc_hw(siz
|
||||
wl->ap_ps_map = 0;
|
||||
wl->ap_fw_ps_map = 0;
|
||||
wl->quirks = 0;
|
||||
- wl->platform_quirks = 0;
|
||||
wl->system_hlid = WL12XX_SYSTEM_HLID;
|
||||
wl->active_sta_count = 0;
|
||||
wl->active_link_count = 0;
|
||||
@@ -5902,7 +5902,7 @@ static void wlcore_nvs_cb(const struct f
|
||||
struct platform_device *pdev = wl->pdev;
|
||||
struct wlcore_platdev_data *pdev_data = pdev->dev.platform_data;
|
||||
struct wl12xx_platform_data *pdata = pdev_data->pdata;
|
||||
- unsigned long irqflags;
|
||||
+
|
||||
int ret;
|
||||
|
||||
if (fw) {
|
||||
@@ -5929,16 +5929,15 @@ static void wlcore_nvs_cb(const struct f
|
||||
wlcore_adjust_conf(wl);
|
||||
|
||||
wl->irq = platform_get_irq(pdev, 0);
|
||||
- wl->platform_quirks = pdata->platform_quirks;
|
||||
wl->if_ops = pdev_data->if_ops;
|
||||
|
||||
- if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
|
||||
- irqflags = IRQF_TRIGGER_RISING;
|
||||
- else
|
||||
- irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
|
||||
+ wl->irq_flags = irq_get_trigger_type(wl->irq);
|
||||
+
|
||||
+ /* Since we don't use the primary handler, we must set ONESHOT */
|
||||
+ wl->irq_flags |= IRQF_ONESHOT;
|
||||
|
||||
ret = request_threaded_irq(wl->irq, NULL, wlcore_irq,
|
||||
- irqflags, pdev->name, wl);
|
||||
+ wl->irq_flags, pdev->name, wl);
|
||||
if (ret < 0) {
|
||||
wl1271_error("request_irq() failed: %d", ret);
|
||||
goto out_free_nvs;
|
||||
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
|
||||
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
|
||||
@@ -185,6 +185,8 @@ struct wl1271 {
|
||||
|
||||
int irq;
|
||||
|
||||
+ int irq_flags;
|
||||
+
|
||||
spinlock_t wl_lock;
|
||||
|
||||
enum wlcore_state state;
|
||||
@@ -384,9 +386,6 @@ struct wl1271 {
|
||||
/* Quirks of specific hardware revisions */
|
||||
unsigned int quirks;
|
||||
|
||||
- /* Platform limitations */
|
||||
- unsigned int platform_quirks;
|
||||
-
|
||||
/* number of currently active RX BA sessions */
|
||||
int ba_rx_session_count;
|
||||
|
||||
--- a/include/linux/wl12xx.h
|
||||
+++ b/include/linux/wl12xx.h
|
||||
@@ -59,13 +59,9 @@ struct wl12xx_platform_data {
|
||||
int irq;
|
||||
int board_ref_clock;
|
||||
int board_tcxo_clock;
|
||||
- unsigned long platform_quirks;
|
||||
bool pwr_in_suspend;
|
||||
};
|
||||
|
||||
-/* Platform does not support level trigger interrupts */
|
||||
-#define WL12XX_PLATFORM_QUIRK_EDGE_IRQ BIT(0)
|
||||
-
|
||||
#ifdef CONFIG_WILINK_PLATFORM_DATA
|
||||
|
||||
int wl12xx_set_platform_data(const struct wl12xx_platform_data *data);
|
||||
|
|
@ -0,0 +1,65 @@
|
|||
The pwr_in_suspend flag depends on the MMC settings which can be
|
||||
retrieved from the SDIO subsystem, so it doesn't need to be part of
|
||||
the platform data structure. Move it to the platform device data that
|
||||
is passed from SDIO to wlcore.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
drivers/net/wireless/ti/wlcore/main.c | 3 +--
|
||||
drivers/net/wireless/ti/wlcore/sdio.c | 2 +-
|
||||
drivers/net/wireless/ti/wlcore/wlcore_i.h | 1 +
|
||||
include/linux/wl12xx.h | 1 -
|
||||
4 files changed, 3 insertions(+), 4 deletions(-)
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/main.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/main.c
|
||||
@@ -5901,7 +5901,6 @@ static void wlcore_nvs_cb(const struct f
|
||||
struct wl1271 *wl = context;
|
||||
struct platform_device *pdev = wl->pdev;
|
||||
struct wlcore_platdev_data *pdev_data = pdev->dev.platform_data;
|
||||
- struct wl12xx_platform_data *pdata = pdev_data->pdata;
|
||||
|
||||
int ret;
|
||||
|
||||
@@ -5948,7 +5947,7 @@ static void wlcore_nvs_cb(const struct f
|
||||
if (!ret) {
|
||||
wl->irq_wake_enabled = true;
|
||||
device_init_wakeup(wl->dev, 1);
|
||||
- if (pdata->pwr_in_suspend)
|
||||
+ if (pdev_data->pwr_in_suspend)
|
||||
wl->hw->wiphy->wowlan = &wlcore_wowlan_support;
|
||||
}
|
||||
#endif
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -260,7 +260,7 @@ static int wl1271_probe(struct sdio_func
|
||||
dev_dbg(glue->dev, "sdio PM caps = 0x%x\n", mmcflags);
|
||||
|
||||
if (mmcflags & MMC_PM_KEEP_POWER)
|
||||
- pdev_data->pdata->pwr_in_suspend = true;
|
||||
+ pdev_data->pwr_in_suspend = true;
|
||||
|
||||
sdio_set_drvdata(func, glue);
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
|
||||
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
|
||||
@@ -209,6 +209,7 @@ struct wl1271_if_operations {
|
||||
struct wlcore_platdev_data {
|
||||
struct wl12xx_platform_data *pdata;
|
||||
struct wl1271_if_operations *if_ops;
|
||||
+ bool pwr_in_suspend;
|
||||
};
|
||||
|
||||
#define MAX_NUM_KEYS 14
|
||||
--- a/include/linux/wl12xx.h
|
||||
+++ b/include/linux/wl12xx.h
|
||||
@@ -59,7 +59,6 @@ struct wl12xx_platform_data {
|
||||
int irq;
|
||||
int board_ref_clock;
|
||||
int board_tcxo_clock;
|
||||
- bool pwr_in_suspend;
|
||||
};
|
||||
|
||||
#ifdef CONFIG_WILINK_PLATFORM_DATA
|
||||
|
|
@ -0,0 +1,289 @@
|
|||
Instead of defining an enumeration with the FW specific values for the
|
||||
different clock rates, use the actual frequency instead. Also add a
|
||||
boolean to specify whether the clock is XTAL or not.
|
||||
|
||||
Change all board files to reflect this.
|
||||
|
||||
Additionally, this reverts commit 26f45c (ARM: OMAP2+: Legacy support
|
||||
for wl12xx when booted with devicetree), since this is not be needed
|
||||
anymore, now that DT support for WiLink is implemented.
|
||||
|
||||
Cc: Tony Lindgren <tony@atomide.com>
|
||||
Cc: Sekhar Nori <nsekhar@ti.com>
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
arch/arm/mach-davinci/board-da850-evm.c | 3 +-
|
||||
arch/arm/mach-omap2/board-omap3evm.c | 3 +-
|
||||
arch/arm/mach-omap2/board-zoom-peripherals.c | 3 +-
|
||||
arch/arm/mach-omap2/devices.c | 39 -------------------
|
||||
drivers/net/wireless/ti/wl12xx/main.c | 58 +++++++++++++++++++++++++++-
|
||||
drivers/net/wireless/ti/wl12xx/wl12xx.h | 28 ++++++++++++++
|
||||
include/linux/wl12xx.h | 27 ++-----------
|
||||
7 files changed, 93 insertions(+), 68 deletions(-)
|
||||
|
||||
--- a/arch/arm/mach-davinci/board-da850-evm.c
|
||||
+++ b/arch/arm/mach-davinci/board-da850-evm.c
|
||||
@@ -1370,7 +1370,8 @@ static const short da850_wl12xx_pins[] _
|
||||
|
||||
static struct wl12xx_platform_data da850_wl12xx_wlan_data __initdata = {
|
||||
.irq = -1,
|
||||
- .board_ref_clock = WL12XX_REFCLOCK_38,
|
||||
+ .ref_clock_freq = 38400000,
|
||||
+ .ref_clock_xtal = false,
|
||||
};
|
||||
|
||||
static __init int da850_wl12xx_init(void)
|
||||
--- a/arch/arm/mach-omap2/board-omap3evm.c
|
||||
+++ b/arch/arm/mach-omap2/board-omap3evm.c
|
||||
@@ -473,7 +473,8 @@ static struct platform_device omap3evm_w
|
||||
};
|
||||
|
||||
struct wl12xx_platform_data omap3evm_wlan_data __initdata = {
|
||||
- .board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
|
||||
+ .ref_clock_freq = 38400000,
|
||||
+ .ref_clock_xtal = false,
|
||||
};
|
||||
#endif
|
||||
|
||||
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
|
||||
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
|
||||
@@ -244,7 +244,8 @@ static struct platform_device *zoom_devi
|
||||
};
|
||||
|
||||
static struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
|
||||
- .board_ref_clock = WL12XX_REFCLOCK_26, /* 26 MHz */
|
||||
+ .ref_clock_freq = 26000000,
|
||||
+ .ref_clock_xtal = false,
|
||||
};
|
||||
|
||||
static struct omap2_hsmmc_info mmc[] = {
|
||||
--- a/arch/arm/mach-omap2/devices.c
|
||||
+++ b/arch/arm/mach-omap2/devices.c
|
||||
@@ -8,7 +8,6 @@
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*/
|
||||
-#include <linux/gpio.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/platform_device.h>
|
||||
@@ -19,7 +18,6 @@
|
||||
#include <linux/of.h>
|
||||
#include <linux/pinctrl/machine.h>
|
||||
#include <linux/platform_data/omap4-keypad.h>
|
||||
-#include <linux/wl12xx.h>
|
||||
#include <linux/platform_data/mailbox-omap.h>
|
||||
|
||||
#include <asm/mach-types.h>
|
||||
@@ -475,40 +473,6 @@ static void omap_init_vout(void)
|
||||
static inline void omap_init_vout(void) {}
|
||||
#endif
|
||||
|
||||
-#if IS_ENABLED(CONFIG_WL12XX)
|
||||
-
|
||||
-static struct wl12xx_platform_data wl12xx __initdata;
|
||||
-
|
||||
-void __init omap_init_wl12xx_of(void)
|
||||
-{
|
||||
- int ret;
|
||||
-
|
||||
- if (!of_have_populated_dt())
|
||||
- return;
|
||||
-
|
||||
- if (of_machine_is_compatible("ti,omap4-sdp")) {
|
||||
- wl12xx.board_ref_clock = WL12XX_REFCLOCK_26;
|
||||
- wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26;
|
||||
- wl12xx.irq = gpio_to_irq(53);
|
||||
- } else if (of_machine_is_compatible("ti,omap4-panda")) {
|
||||
- wl12xx.board_ref_clock = WL12XX_REFCLOCK_38;
|
||||
- wl12xx.irq = gpio_to_irq(53);
|
||||
- } else {
|
||||
- return;
|
||||
- }
|
||||
-
|
||||
- ret = wl12xx_set_platform_data(&wl12xx);
|
||||
- if (ret) {
|
||||
- pr_err("error setting wl12xx data: %d\n", ret);
|
||||
- return;
|
||||
- }
|
||||
-}
|
||||
-#else
|
||||
-static inline void omap_init_wl12xx_of(void)
|
||||
-{
|
||||
-}
|
||||
-#endif
|
||||
-
|
||||
/*-------------------------------------------------------------------------*/
|
||||
|
||||
static int __init omap2_init_devices(void)
|
||||
@@ -531,9 +495,6 @@ static int __init omap2_init_devices(voi
|
||||
omap_init_sham();
|
||||
omap_init_aes();
|
||||
omap_init_rng();
|
||||
- } else {
|
||||
- /* These can be removed when bindings are done */
|
||||
- omap_init_wl12xx_of();
|
||||
}
|
||||
omap_init_sti();
|
||||
omap_init_vout();
|
||||
--- a/drivers/net/wireless/ti/wl12xx/main.c
|
||||
+++ b/drivers/net/wireless/ti/wl12xx/main.c
|
||||
@@ -1701,6 +1701,43 @@ static struct ieee80211_sta_ht_cap wl12x
|
||||
},
|
||||
};
|
||||
|
||||
+static const struct wl12xx_clock wl12xx_refclock_table[] = {
|
||||
+ { 19200000, false, WL12XX_REFCLOCK_19 },
|
||||
+ { 26000000, false, WL12XX_REFCLOCK_26 },
|
||||
+ { 26000000, true, WL12XX_REFCLOCK_26_XTAL },
|
||||
+ { 38400000, false, WL12XX_REFCLOCK_38 },
|
||||
+ { 38400000, true, WL12XX_REFCLOCK_38_XTAL },
|
||||
+ { 52000000, false, WL12XX_REFCLOCK_52 },
|
||||
+ { 0, false, 0 }
|
||||
+};
|
||||
+
|
||||
+static const struct wl12xx_clock wl12xx_tcxoclock_table[] = {
|
||||
+ { 16368000, true, WL12XX_TCXOCLOCK_16_368 },
|
||||
+ { 16800000, true, WL12XX_TCXOCLOCK_16_8 },
|
||||
+ { 19200000, true, WL12XX_TCXOCLOCK_19_2 },
|
||||
+ { 26000000, true, WL12XX_TCXOCLOCK_26 },
|
||||
+ { 32736000, true, WL12XX_TCXOCLOCK_32_736 },
|
||||
+ { 33600000, true, WL12XX_TCXOCLOCK_33_6 },
|
||||
+ { 38400000, true, WL12XX_TCXOCLOCK_38_4 },
|
||||
+ { 52000000, true, WL12XX_TCXOCLOCK_52 },
|
||||
+ { 0, false, 0 }
|
||||
+};
|
||||
+
|
||||
+static int wl12xx_get_clock_idx(const struct wl12xx_clock *table,
|
||||
+ u32 freq, bool xtal)
|
||||
+{
|
||||
+ int i = 0;
|
||||
+
|
||||
+ while(table[i].freq != 0) {
|
||||
+ if ((table[i].freq == freq) &&
|
||||
+ (table[i].xtal == xtal))
|
||||
+ return table[i].hw_idx;
|
||||
+ i++;
|
||||
+ };
|
||||
+
|
||||
+ return -EINVAL;
|
||||
+}
|
||||
+
|
||||
static int wl12xx_setup(struct wl1271 *wl)
|
||||
{
|
||||
struct wl12xx_priv *priv = wl->priv;
|
||||
@@ -1722,7 +1759,16 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
wl12xx_conf_init(wl);
|
||||
|
||||
if (!fref_param) {
|
||||
- priv->ref_clock = pdata->board_ref_clock;
|
||||
+ priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
|
||||
+ pdata->ref_clock_freq,
|
||||
+ pdata->ref_clock_xtal);
|
||||
+ if (priv->ref_clock < 0) {
|
||||
+ wl1271_error("Invalid ref_clock frequency (%d Hz, %s)",
|
||||
+ pdata->ref_clock_freq,
|
||||
+ pdata->ref_clock_xtal ? "XTAL" : "not XTAL");
|
||||
+
|
||||
+ return priv->ref_clock;
|
||||
+ }
|
||||
} else {
|
||||
if (!strcmp(fref_param, "19.2"))
|
||||
priv->ref_clock = WL12XX_REFCLOCK_19;
|
||||
@@ -1741,7 +1787,15 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
}
|
||||
|
||||
if (!tcxo_param) {
|
||||
- priv->tcxo_clock = pdata->board_tcxo_clock;
|
||||
+ priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
|
||||
+ pdata->tcxo_clock_freq,
|
||||
+ true);
|
||||
+ if (priv->tcxo_clock < 0) {
|
||||
+ wl1271_error("Invalid tcxo_clock frequency (%d Hz)",
|
||||
+ pdata->tcxo_clock_freq);
|
||||
+
|
||||
+ return priv->tcxo_clock;
|
||||
+ }
|
||||
} else {
|
||||
if (!strcmp(tcxo_param, "19.2"))
|
||||
priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
|
||||
--- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
|
||||
+++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
|
||||
@@ -79,4 +79,32 @@ struct wl12xx_priv {
|
||||
struct wl127x_rx_mem_pool_addr *rx_mem_addr;
|
||||
};
|
||||
|
||||
+/* Reference clock values */
|
||||
+enum {
|
||||
+ WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
|
||||
+ WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
|
||||
+ WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
|
||||
+ WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
|
||||
+ WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
|
||||
+ WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
|
||||
+};
|
||||
+
|
||||
+/* TCXO clock values */
|
||||
+enum {
|
||||
+ WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
|
||||
+ WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
|
||||
+ WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
|
||||
+ WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
|
||||
+ WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
|
||||
+ WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
|
||||
+ WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
|
||||
+ WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
|
||||
+};
|
||||
+
|
||||
+struct wl12xx_clock {
|
||||
+ u32 freq;
|
||||
+ bool xtal;
|
||||
+ u8 hw_idx;
|
||||
+};
|
||||
+
|
||||
#endif /* __WL12XX_PRIV_H__ */
|
||||
--- a/include/linux/wl12xx.h
|
||||
+++ b/include/linux/wl12xx.h
|
||||
@@ -26,28 +26,6 @@
|
||||
|
||||
#include <linux/err.h>
|
||||
|
||||
-/* Reference clock values */
|
||||
-enum {
|
||||
- WL12XX_REFCLOCK_19 = 0, /* 19.2 MHz */
|
||||
- WL12XX_REFCLOCK_26 = 1, /* 26 MHz */
|
||||
- WL12XX_REFCLOCK_38 = 2, /* 38.4 MHz */
|
||||
- WL12XX_REFCLOCK_52 = 3, /* 52 MHz */
|
||||
- WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
|
||||
- WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
|
||||
-};
|
||||
-
|
||||
-/* TCXO clock values */
|
||||
-enum {
|
||||
- WL12XX_TCXOCLOCK_19_2 = 0, /* 19.2MHz */
|
||||
- WL12XX_TCXOCLOCK_26 = 1, /* 26 MHz */
|
||||
- WL12XX_TCXOCLOCK_38_4 = 2, /* 38.4MHz */
|
||||
- WL12XX_TCXOCLOCK_52 = 3, /* 52 MHz */
|
||||
- WL12XX_TCXOCLOCK_16_368 = 4, /* 16.368 MHz */
|
||||
- WL12XX_TCXOCLOCK_32_736 = 5, /* 32.736 MHz */
|
||||
- WL12XX_TCXOCLOCK_16_8 = 6, /* 16.8 MHz */
|
||||
- WL12XX_TCXOCLOCK_33_6 = 7, /* 33.6 MHz */
|
||||
-};
|
||||
-
|
||||
struct wl1251_platform_data {
|
||||
void (*set_power)(bool enable);
|
||||
/* SDIO only: IRQ number if WLAN_IRQ line is used, 0 for SDIO IRQs */
|
||||
@@ -57,8 +35,9 @@ struct wl1251_platform_data {
|
||||
|
||||
struct wl12xx_platform_data {
|
||||
int irq;
|
||||
- int board_ref_clock;
|
||||
- int board_tcxo_clock;
|
||||
+ int ref_clock_freq; /* in Hertz */
|
||||
+ bool ref_clock_xtal; /* specify whether the clock is XTAL or not */
|
||||
+ int tcxo_clock_freq; /* in Hertz, tcxo is always XTAL */
|
||||
};
|
||||
|
||||
#ifdef CONFIG_WILINK_PLATFORM_DATA
|
||||
|
|
@ -0,0 +1,122 @@
|
|||
If platform data is not available, try to get the required information
|
||||
from the device tree. Register an OF match table and parse the
|
||||
appropriate device tree nodes.
|
||||
|
||||
Parse interrupt property only, for now.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
drivers/net/wireless/ti/wlcore/sdio.c | 69 ++++++++++++++++++++++++++++++++---
|
||||
1 file changed, 63 insertions(+), 6 deletions(-)
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -30,7 +30,7 @@
|
||||
#include <linux/mmc/sdio_ids.h>
|
||||
#include <linux/mmc/card.h>
|
||||
#include <linux/mmc/host.h>
|
||||
-#include <linux/gpio.h>
|
||||
+#include <linux/of_irq.h>
|
||||
#include <linux/wl12xx.h>
|
||||
#include <linux/pm_runtime.h>
|
||||
#include <linux/printk.h>
|
||||
@@ -214,6 +214,43 @@ static struct wl1271_if_operations sdio_
|
||||
.set_block_size = wl1271_sdio_set_block_size,
|
||||
};
|
||||
|
||||
+static struct wl12xx_platform_data *wlcore_get_pdata_from_of(struct device *dev)
|
||||
+{
|
||||
+ struct wl12xx_platform_data *pdata;
|
||||
+ struct device_node *np = dev->of_node;
|
||||
+
|
||||
+ if (!np) {
|
||||
+ np = of_find_matching_node(NULL, dev->driver->of_match_table);
|
||||
+ if (!np) {
|
||||
+ dev_notice(dev, "device tree node not available\n");
|
||||
+ pdata = ERR_PTR(-ENODEV);
|
||||
+ goto out;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
|
||||
+ if (!pdata) {
|
||||
+ dev_err(dev, "can't allocate platform data\n");
|
||||
+ pdata = ERR_PTR(-ENODEV);
|
||||
+ goto out;
|
||||
+ }
|
||||
+
|
||||
+ pdata->irq = irq_of_parse_and_map(np, 0);
|
||||
+ if (pdata->irq < 0) {
|
||||
+ dev_err(dev, "can't get interrupt gpio from the device tree\n");
|
||||
+ goto out_free;
|
||||
+ }
|
||||
+
|
||||
+ goto out;
|
||||
+
|
||||
+out_free:
|
||||
+ kfree(pdata);
|
||||
+ pdata = ERR_PTR(-ENODEV);
|
||||
+
|
||||
+out:
|
||||
+ return pdata;
|
||||
+}
|
||||
+
|
||||
static int wl1271_probe(struct sdio_func *func,
|
||||
const struct sdio_device_id *id)
|
||||
{
|
||||
@@ -248,11 +285,22 @@ static int wl1271_probe(struct sdio_func
|
||||
/* Use block mode for transferring over one block size of data */
|
||||
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
|
||||
|
||||
+ /* The pdata allocated here is freed when the device is freed,
|
||||
+ * so we don't need an additional out label to free it in case
|
||||
+ * of error further on.
|
||||
+ */
|
||||
+
|
||||
+ /* Try to get legacy platform data from the board file */
|
||||
pdev_data->pdata = wl12xx_get_platform_data();
|
||||
if (IS_ERR(pdev_data->pdata)) {
|
||||
- ret = PTR_ERR(pdev_data->pdata);
|
||||
- dev_err(glue->dev, "missing wlan platform data: %d\n", ret);
|
||||
- goto out_free_glue;
|
||||
+ dev_info(&func->dev,
|
||||
+ "legacy platform data not found, trying device tree\n");
|
||||
+
|
||||
+ pdev_data->pdata = wlcore_get_pdata_from_of(&func->dev);
|
||||
+ if (IS_ERR(pdev_data->pdata)) {
|
||||
+ dev_err(&func->dev, "can't get platform data\n");
|
||||
+ goto out_free_glue;
|
||||
+ }
|
||||
}
|
||||
|
||||
/* if sdio can keep power while host is suspended, enable wow */
|
||||
@@ -386,16 +434,25 @@ static const struct dev_pm_ops wl1271_sd
|
||||
};
|
||||
#endif
|
||||
|
||||
+static const struct of_device_id wlcore_sdio_of_match_table[] = {
|
||||
+ { .compatible = "ti,wilink6" },
|
||||
+ { .compatible = "ti,wilink7" },
|
||||
+ { .compatible = "ti,wilink8" },
|
||||
+ { }
|
||||
+};
|
||||
+MODULE_DEVICE_TABLE(of, wlcore_sdio_of_match_table);
|
||||
+
|
||||
static struct sdio_driver wl1271_sdio_driver = {
|
||||
.name = "wl1271_sdio",
|
||||
.id_table = wl1271_devices,
|
||||
.probe = wl1271_probe,
|
||||
.remove = wl1271_remove,
|
||||
-#ifdef CONFIG_PM
|
||||
.drv = {
|
||||
+#ifdef CONFIG_PM
|
||||
.pm = &wl1271_sdio_pm_ops,
|
||||
- },
|
||||
#endif
|
||||
+ .of_match_table = of_match_ptr(wlcore_sdio_of_match_table),
|
||||
+ },
|
||||
};
|
||||
|
||||
static int __init wl1271_init(void)
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
Add refclock and tcxoclock as clock providers in WiLink. These clocks
|
||||
are not accesible outside the WiLink module, but they are registered
|
||||
in the clock framework anyway. Only the WiLink chip consumes these
|
||||
clocks.
|
||||
|
||||
In theory, the WiLink chip could be connected to external clocks
|
||||
instead of using these internal clocks, so make the clock consumer
|
||||
code generic enough. If external clocks are used, then the internal
|
||||
clock device tree nodes are not necessary, but the external ones must
|
||||
be specified.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
drivers/net/wireless/ti/wlcore/sdio.c | 9 +++++++++
|
||||
1 file changed, 9 insertions(+)
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -34,6 +34,7 @@
|
||||
#include <linux/wl12xx.h>
|
||||
#include <linux/pm_runtime.h>
|
||||
#include <linux/printk.h>
|
||||
+#include <linux/clk-provider.h>
|
||||
|
||||
#include "wlcore.h"
|
||||
#include "wl12xx_80211.h"
|
||||
@@ -214,10 +215,15 @@ static struct wl1271_if_operations sdio_
|
||||
.set_block_size = wl1271_sdio_set_block_size,
|
||||
};
|
||||
|
||||
+static const struct of_device_id wlcore_sdio_of_clk_match_table[] = {
|
||||
+ { .compatible = "ti,wilink-clock" },
|
||||
+};
|
||||
+
|
||||
static struct wl12xx_platform_data *wlcore_get_pdata_from_of(struct device *dev)
|
||||
{
|
||||
struct wl12xx_platform_data *pdata;
|
||||
struct device_node *np = dev->of_node;
|
||||
+ struct device_node *clock_node;
|
||||
|
||||
if (!np) {
|
||||
np = of_find_matching_node(NULL, dev->driver->of_match_table);
|
||||
@@ -241,6 +247,9 @@ static struct wl12xx_platform_data *wlco
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
+ for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
|
||||
+ of_fixed_clk_setup(clock_node);
|
||||
+
|
||||
goto out;
|
||||
|
||||
out_free:
|
||||
|
|
@ -0,0 +1,94 @@
|
|||
Read the clock nodes from the device tree and use them to set the
|
||||
frequency for the refclock and the tcxo clock.
|
||||
|
||||
Also, call sdio_set_drvdata() earlier, so the glue is already set in
|
||||
the driver data when we call wlcore_get_pdata_from_of() and we don't
|
||||
need to pass it as a parameter.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
drivers/net/wireless/ti/wlcore/sdio.c | 36 +++++++++++++++++++++++++++++++++--
|
||||
1 file changed, 34 insertions(+), 2 deletions(-)
|
||||
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -53,6 +53,7 @@ static bool dump = false;
|
||||
struct wl12xx_sdio_glue {
|
||||
struct device *dev;
|
||||
struct platform_device *core;
|
||||
+ struct clk *refclock, *tcxoclock;
|
||||
};
|
||||
|
||||
static const struct sdio_device_id wl1271_devices[] = {
|
||||
@@ -224,6 +225,7 @@ static struct wl12xx_platform_data *wlco
|
||||
struct wl12xx_platform_data *pdata;
|
||||
struct device_node *np = dev->of_node;
|
||||
struct device_node *clock_node;
|
||||
+ struct wl12xx_sdio_glue *glue = sdio_get_drvdata(dev_to_sdio_func(dev));
|
||||
|
||||
if (!np) {
|
||||
np = of_find_matching_node(NULL, dev->driver->of_match_table);
|
||||
@@ -250,6 +252,26 @@ static struct wl12xx_platform_data *wlco
|
||||
for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
|
||||
of_fixed_clk_setup(clock_node);
|
||||
|
||||
+ /* TODO: make sure we have this when needed (ie. for WL6 and WL7) */
|
||||
+ glue->refclock = of_clk_get_by_name(np, "refclock");
|
||||
+ if (IS_ERR(glue->refclock)) {
|
||||
+ dev_err(dev, "couldn't find refclock on the device tree\n");
|
||||
+ glue->refclock = NULL;
|
||||
+ } else {
|
||||
+ clk_prepare_enable(glue->refclock);
|
||||
+ pdata->ref_clock_freq = clk_get_rate(glue->refclock);
|
||||
+ }
|
||||
+
|
||||
+ /* TODO: make sure we have this when needed (ie. for WL7) */
|
||||
+ glue->tcxoclock = of_clk_get_by_name(np, "tcxoclock");
|
||||
+ if (IS_ERR(glue->tcxoclock)) {
|
||||
+ dev_err(dev, "couldn't find tcxoclock on the device tree\n");
|
||||
+ glue->tcxoclock = NULL;
|
||||
+ } else {
|
||||
+ clk_prepare_enable(glue->tcxoclock);
|
||||
+ pdata->ref_clock_freq = clk_get_rate(glue->tcxoclock);
|
||||
+ }
|
||||
+
|
||||
goto out;
|
||||
|
||||
out_free:
|
||||
@@ -294,6 +316,8 @@ static int wl1271_probe(struct sdio_func
|
||||
/* Use block mode for transferring over one block size of data */
|
||||
func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
|
||||
|
||||
+ sdio_set_drvdata(func, glue);
|
||||
+
|
||||
/* The pdata allocated here is freed when the device is freed,
|
||||
* so we don't need an additional out label to free it in case
|
||||
* of error further on.
|
||||
@@ -319,8 +343,6 @@ static int wl1271_probe(struct sdio_func
|
||||
if (mmcflags & MMC_PM_KEEP_POWER)
|
||||
pdev_data->pwr_in_suspend = true;
|
||||
|
||||
- sdio_set_drvdata(func, glue);
|
||||
-
|
||||
/* Tell PM core that we don't need the card to be powered now */
|
||||
pm_runtime_put_noidle(&func->dev);
|
||||
|
||||
@@ -387,6 +409,16 @@ static void wl1271_remove(struct sdio_fu
|
||||
{
|
||||
struct wl12xx_sdio_glue *glue = sdio_get_drvdata(func);
|
||||
|
||||
+ if (glue->refclock) {
|
||||
+ clk_disable_unprepare(glue->refclock);
|
||||
+ clk_put(glue->refclock);
|
||||
+ }
|
||||
+
|
||||
+ if (glue->tcxoclock) {
|
||||
+ clk_disable_unprepare(glue->tcxoclock);
|
||||
+ clk_put(glue->tcxoclock);
|
||||
+ }
|
||||
+
|
||||
/* Undo decrement done above in wl1271_probe */
|
||||
pm_runtime_get_noresume(&func->dev);
|
||||
|
||||
|
|
@ -0,0 +1,101 @@
|
|||
The fref and the tcxo clocks settings are optional in some platforms.
|
||||
WiLink8 doesn't need either, so we don't check the values. WiLink 6
|
||||
only needs the fref clock, so we check that it is valid or return with
|
||||
an error. WiLink7 needs both clocks, if either is not available we
|
||||
return with an error.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Felipe Balbi <balbi@ti.com>
|
||||
|
||||
---
|
||||
drivers/net/wireless/ti/wl12xx/main.c | 20 +++++++++++++++++---
|
||||
drivers/net/wireless/ti/wlcore/sdio.c | 4 ----
|
||||
2 files changed, 17 insertions(+), 7 deletions(-)
|
||||
|
||||
--- a/drivers/net/wireless/ti/wl12xx/main.c
|
||||
+++ b/drivers/net/wireless/ti/wl12xx/main.c
|
||||
@@ -927,6 +927,11 @@ static int wl128x_boot_clk(struct wl1271
|
||||
u16 sys_clk_cfg;
|
||||
int ret;
|
||||
|
||||
+ if ((priv->ref_clock < 0) || (priv->tcxo_clock < 0)) {
|
||||
+ wl1271_error("Missing fref and/or tcxo clock settings\n");
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
/* For XTAL-only modes, FREF will be used after switching from TCXO */
|
||||
if (priv->ref_clock == WL12XX_REFCLOCK_26_XTAL ||
|
||||
priv->ref_clock == WL12XX_REFCLOCK_38_XTAL) {
|
||||
@@ -976,6 +981,11 @@ static int wl127x_boot_clk(struct wl1271
|
||||
u32 clk;
|
||||
int ret;
|
||||
|
||||
+ if (priv->ref_clock < 0) {
|
||||
+ wl1271_error("Missing fref clock settings\n");
|
||||
+ return -EINVAL;
|
||||
+ }
|
||||
+
|
||||
if (WL127X_PG_GET_MAJOR(wl->hw_pg_ver) < 3)
|
||||
wl->quirks |= WLCORE_QUIRK_END_OF_TRANSACTION;
|
||||
|
||||
@@ -1758,7 +1768,7 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
wlcore_set_ht_cap(wl, IEEE80211_BAND_5GHZ, &wl12xx_ht_cap);
|
||||
wl12xx_conf_init(wl);
|
||||
|
||||
- if (!fref_param) {
|
||||
+ if (!fref_param && (pdata->ref_clock_freq > 0)) {
|
||||
priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
|
||||
pdata->ref_clock_freq,
|
||||
pdata->ref_clock_xtal);
|
||||
@@ -1769,6 +1779,8 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
|
||||
return priv->ref_clock;
|
||||
}
|
||||
+ } else if (!fref_param) {
|
||||
+ priv->ref_clock = -EINVAL;
|
||||
} else {
|
||||
if (!strcmp(fref_param, "19.2"))
|
||||
priv->ref_clock = WL12XX_REFCLOCK_19;
|
||||
@@ -1786,7 +1798,7 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
wl1271_error("Invalid fref parameter %s", fref_param);
|
||||
}
|
||||
|
||||
- if (!tcxo_param) {
|
||||
+ if (!fref_param && (pdata->tcxo_clock_freq > 0)) {
|
||||
priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
|
||||
pdata->tcxo_clock_freq,
|
||||
true);
|
||||
@@ -1796,7 +1808,9 @@ static int wl12xx_setup(struct wl1271 *w
|
||||
|
||||
return priv->tcxo_clock;
|
||||
}
|
||||
- } else {
|
||||
+ } else if (!fref_param) {
|
||||
+ priv->tcxo_clock = -EINVAL;
|
||||
+ }else {
|
||||
if (!strcmp(tcxo_param, "19.2"))
|
||||
priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
|
||||
else if (!strcmp(tcxo_param, "26"))
|
||||
--- a/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
|
||||
@@ -252,20 +252,16 @@ static struct wl12xx_platform_data *wlco
|
||||
for_each_matching_node(clock_node, wlcore_sdio_of_clk_match_table)
|
||||
of_fixed_clk_setup(clock_node);
|
||||
|
||||
- /* TODO: make sure we have this when needed (ie. for WL6 and WL7) */
|
||||
glue->refclock = of_clk_get_by_name(np, "refclock");
|
||||
if (IS_ERR(glue->refclock)) {
|
||||
- dev_err(dev, "couldn't find refclock on the device tree\n");
|
||||
glue->refclock = NULL;
|
||||
} else {
|
||||
clk_prepare_enable(glue->refclock);
|
||||
pdata->ref_clock_freq = clk_get_rate(glue->refclock);
|
||||
}
|
||||
|
||||
- /* TODO: make sure we have this when needed (ie. for WL7) */
|
||||
glue->tcxoclock = of_clk_get_by_name(np, "tcxoclock");
|
||||
if (IS_ERR(glue->tcxoclock)) {
|
||||
- dev_err(dev, "couldn't find tcxoclock on the device tree\n");
|
||||
glue->tcxoclock = NULL;
|
||||
} else {
|
||||
clk_prepare_enable(glue->tcxoclock);
|
||||
|
|
@ -0,0 +1,102 @@
|
|||
From patchwork Tue Jul 30 20:21:08 2013
|
||||
Content-Type: text/plain; charset="utf-8"
|
||||
MIME-Version: 1.0
|
||||
Content-Transfer-Encoding: 7bit
|
||||
Subject: [v3] Documentation: dt: bindings: TI WiLink modules
|
||||
From: Luciano Coelho <coelho@ti.com>
|
||||
X-Patchwork-Id: 2835914
|
||||
Message-Id: <1375215668-29171-1-git-send-email-coelho@ti.com>
|
||||
To: <devicetree@vger.kernel.org>, <linux-doc@vger.kernel.org>
|
||||
Cc: <mturquette@linaro.org>, <mark.rutland@arm.com>, <balbi@ti.com>,
|
||||
<grant.likely@linaro.org>, <rob.herring@calxeda.com>,
|
||||
<linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
|
||||
<linux-wireless@vger.kernel.org>,
|
||||
<linux-arm-kernel@lists.infradead.org>, <tony@atomide.com>,
|
||||
<nm@ti.com>, <laurent.pinchart@ideasonboard.com>
|
||||
Date: Tue, 30 Jul 2013 23:21:08 +0300
|
||||
|
||||
Add device tree bindings documentation for the TI WiLink modules.
|
||||
Currently only the WLAN part of the WiLink6, WiLink7 and WiLink8
|
||||
modules is supported.
|
||||
|
||||
Signed-off-by: Luciano Coelho <coelho@ti.com>
|
||||
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
|
||||
|
||||
---
|
||||
In v3, use IRQ_TYPE_LEVEL_HIGH in the example, as suggested by Laurent.
|
||||
|
||||
.../devicetree/bindings/net/wireless/ti-wilink.txt | 68 ++++++++++++++++++++++
|
||||
1 file changed, 68 insertions(+)
|
||||
create mode 100644 Documentation/devicetree/bindings/net/wireless/ti-wilink.txt
|
||||
|
||||
--- /dev/null
|
||||
+++ b/Documentation/devicetree/bindings/net/wireless/ti-wilink.txt
|
||||
@@ -0,0 +1,68 @@
|
||||
+TI WiLink Wireless Modules Device Tree Bindings
|
||||
+===============================================
|
||||
+
|
||||
+The WiLink modules provide wireless connectivity, such as WLAN,
|
||||
+Bluetooth, FM and NFC.
|
||||
+
|
||||
+There are several different modules available, which can be grouped by
|
||||
+their generation: WiLink6, WiLink7 and WiLink8. WiLink4 is not
|
||||
+currently supported with device tree.
|
||||
+
|
||||
+Currently, only the WLAN portion of the modules is supported with
|
||||
+device tree.
|
||||
+
|
||||
+Required properties:
|
||||
+--------------------
|
||||
+
|
||||
+- compatible: should be "ti,wilink6", "ti,wilink7" or "ti,wilink8"
|
||||
+- interrupt-parent: the interrupt controller
|
||||
+- interrupts: out-of-band WLAN interrupt
|
||||
+ See the interrupt controller's bindings documentation for
|
||||
+ detailed definition.
|
||||
+
|
||||
+Optional properties:
|
||||
+--------------------
|
||||
+
|
||||
+- clocks: list of clocks needed by the chip as follows:
|
||||
+
|
||||
+ refclock: the internal WLAN reference clock frequency (required for
|
||||
+ WiLink6 and WiLink7; not used for WiLink8).
|
||||
+
|
||||
+ tcxoclock: the internal WLAN TCXO clock frequency (required for
|
||||
+ WiLink7 not used for WiLink6 and WiLink8).
|
||||
+
|
||||
+ The clocks must be defined and named accordingly. For example:
|
||||
+
|
||||
+ clocks = <&refclock>
|
||||
+ clock-names = "refclock";
|
||||
+
|
||||
+ refclock: refclock {
|
||||
+ compatible = "ti,wilink-clock";
|
||||
+ #clock-cells = <0>;
|
||||
+ clock-frequency = <38400000>;
|
||||
+ };
|
||||
+
|
||||
+ Some modules that contain the WiLink chip provide clocks in the
|
||||
+ module itself. In this case, we define a "ti,wilink-clock" as shown
|
||||
+ above. But any other clock could in theory be used, so the proper
|
||||
+ clock definition should be used.
|
||||
+
|
||||
+
|
||||
+Example:
|
||||
+--------
|
||||
+
|
||||
+Example definition that can be used in OMAP4 Panda:
|
||||
+
|
||||
+wlan {
|
||||
+ compatible = "ti,wilink6";
|
||||
+ interrupt-parent = <&gpio2>;
|
||||
+ interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* gpio line 53 */
|
||||
+ clocks = <&refclock>;
|
||||
+ clock-names = "refclock";
|
||||
+
|
||||
+ refclock: refclock {
|
||||
+ compatible = "ti,wilink-clock";
|
||||
+ #clock-cells = <0>;
|
||||
+ clock-frequency = <38400000>;
|
||||
+ };
|
||||
+};
|
||||
Loading…
Reference in New Issue