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openwrt/target/linux/brcm63xx/patches-4.4/000-4.5-31-gpio-generic-fac...

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From 0f4630f3720e7e6e921bf525c8357fea7ef3dbab Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 4 Dec 2015 14:02:58 +0100
Subject: [PATCH] gpio: generic: factor into gpio_chip struct
The separate struct bgpio_chip has been a pain to handle, both
by being confusingly similar in name to struct gpio_chip and
for being contained inside a struct so that struct gpio_chip
is contained in a struct contained in a struct, making several
steps of dereferencing necessary.
Make things simpler: include the fields directly into
<linux/gpio/driver.h>, #ifdef:ed for CONFIG_GENERIC_GPIO, and
get rid of the <linux/basic_mmio_gpio.h> altogether. Prefix
some of the member variables with bgpio_* and add proper
kerneldoc while we're at it.
Modify all users to handle the change and use a struct
gpio_chip directly. And while we're at it: replace all
container_of() dereferencing by gpiochip_get_data() and
registering the gpio_chip with gpiochip_add_data().
Cc: arm@kernel.org
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Brian Norris <computersforpeace@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Rabin Vincent <rabin@rab.in>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: bcm-kernel-feedback-list@broadcom.com
Acked-by: Gregory Fong <gregory.0xf0@gmail.com>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
arch/arm/mach-clps711x/board-autcpu12.c | 2 +-
arch/arm/mach-clps711x/board-p720t.c | 2 +-
arch/arm/mach-imx/mach-mx21ads.c | 2 +-
arch/arm/mach-omap1/board-ams-delta.c | 2 +-
arch/arm/mach-s3c64xx/mach-crag6410.c | 2 +-
drivers/gpio/gpio-74xx-mmio.c | 37 ++--
drivers/gpio/gpio-brcmstb.c | 80 ++++-----
drivers/gpio/gpio-clps711x.c | 28 +--
drivers/gpio/gpio-dwapb.c | 92 +++++-----
drivers/gpio/gpio-ep93xx.c | 25 +--
drivers/gpio/gpio-etraxfs.c | 49 +++---
drivers/gpio/gpio-ge.c | 24 +--
drivers/gpio/gpio-generic.c | 292 +++++++++++++++-----------------
drivers/gpio/gpio-grgpio.c | 73 ++++----
drivers/gpio/gpio-moxart.c | 29 ++--
drivers/gpio/gpio-mxc.c | 27 ++-
drivers/gpio/gpio-mxs.c | 33 ++--
drivers/gpio/gpio-sodaville.c | 13 +-
drivers/gpio/gpio-xgene-sb.c | 40 ++---
drivers/mfd/vexpress-sysreg.c | 8 +-
include/linux/basic_mmio_gpio.h | 80 ---------
include/linux/gpio/driver.h | 54 ++++++
22 files changed, 442 insertions(+), 552 deletions(-)
delete mode 100644 include/linux/basic_mmio_gpio.h
--- a/arch/arm/mach-clps711x/board-autcpu12.c
+++ b/arch/arm/mach-clps711x/board-autcpu12.c
@@ -31,7 +31,7 @@
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
#include <linux/platform_device.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <mach/hardware.h>
#include <asm/sizes.h>
--- a/arch/arm/mach-clps711x/board-p720t.c
+++ b/arch/arm/mach-clps711x/board-p720t.c
@@ -28,7 +28,7 @@
#include <linux/leds.h>
#include <linux/sizes.h>
#include <linux/backlight.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/nand-gpio.h>
--- a/arch/arm/mach-imx/mach-mx21ads.c
+++ b/arch/arm/mach-imx/mach-mx21ads.c
@@ -17,7 +17,7 @@
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/physmap.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/gpio.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
--- a/arch/arm/mach-omap1/board-ams-delta.c
+++ b/arch/arm/mach-omap1/board-ams-delta.c
@@ -11,7 +11,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -29,7 +29,7 @@
#include <linux/pwm_backlight.h>
#include <linux/dm9000.h>
#include <linux/gpio_keys.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/spi/spi.h>
#include <linux/platform_data/pca953x.h>
--- a/drivers/gpio/gpio-74xx-mmio.c
+++ b/drivers/gpio/gpio-74xx-mmio.c
@@ -10,10 +10,9 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of_device.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
#define MMIO_74XX_DIR_IN (0 << 8)
@@ -21,7 +20,7 @@
#define MMIO_74XX_BIT_CNT(x) ((x) & 0xff)
struct mmio_74xx_gpio_priv {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
unsigned flags;
};
@@ -78,30 +77,23 @@ static const struct of_device_id mmio_74
};
MODULE_DEVICE_TABLE(of, mmio_74xx_gpio_ids);
-static inline struct mmio_74xx_gpio_priv *to_74xx_gpio(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct mmio_74xx_gpio_priv, bgc);
-}
-
static int mmio_74xx_get_direction(struct gpio_chip *gc, unsigned offset)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
- return (priv->flags & MMIO_74XX_DIR_OUT) ? GPIOF_DIR_OUT : GPIOF_DIR_IN;
+ return !(priv->flags & MMIO_74XX_DIR_OUT);
}
static int mmio_74xx_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
return (priv->flags & MMIO_74XX_DIR_OUT) ? -ENOTSUPP : 0;
}
static int mmio_74xx_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct mmio_74xx_gpio_priv *priv = to_74xx_gpio(gc);
+ struct mmio_74xx_gpio_priv *priv = gpiochip_get_data(gc);
if (priv->flags & MMIO_74XX_DIR_OUT) {
gc->set(gc, gpio, val);
@@ -134,28 +126,29 @@ static int mmio_74xx_gpio_probe(struct p
priv->flags = (uintptr_t) of_id->data;
- err = bgpio_init(&priv->bgc, &pdev->dev,
+ err = bgpio_init(&priv->gc, &pdev->dev,
DIV_ROUND_UP(MMIO_74XX_BIT_CNT(priv->flags), 8),
dat, NULL, NULL, NULL, NULL, 0);
if (err)
return err;
- priv->bgc.gc.direction_input = mmio_74xx_dir_in;
- priv->bgc.gc.direction_output = mmio_74xx_dir_out;
- priv->bgc.gc.get_direction = mmio_74xx_get_direction;
- priv->bgc.gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags);
- priv->bgc.gc.owner = THIS_MODULE;
+ priv->gc.direction_input = mmio_74xx_dir_in;
+ priv->gc.direction_output = mmio_74xx_dir_out;
+ priv->gc.get_direction = mmio_74xx_get_direction;
+ priv->gc.ngpio = MMIO_74XX_BIT_CNT(priv->flags);
+ priv->gc.owner = THIS_MODULE;
platform_set_drvdata(pdev, priv);
- return gpiochip_add(&priv->bgc.gc);
+ return gpiochip_add_data(&priv->gc, priv);
}
static int mmio_74xx_gpio_remove(struct platform_device *pdev)
{
struct mmio_74xx_gpio_priv *priv = platform_get_drvdata(pdev);
- return bgpio_remove(&priv->bgc);
+ gpiochip_remove(&priv->gc);
+ return 0;
}
static struct platform_driver mmio_74xx_gpio_driver = {
--- a/drivers/gpio/gpio-brcmstb.c
+++ b/drivers/gpio/gpio-brcmstb.c
@@ -16,7 +16,6 @@
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/interrupt.h>
@@ -35,7 +34,7 @@
struct brcmstb_gpio_bank {
struct list_head node;
int id;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
struct brcmstb_gpio_priv *parent_priv;
u32 width;
struct irq_chip irq_chip;
@@ -57,37 +56,30 @@ struct brcmstb_gpio_priv {
/* assumes MAX_GPIO_PER_BANK is a multiple of 2 */
#define GPIO_BIT(gpio) ((gpio) & (MAX_GPIO_PER_BANK - 1))
-static inline struct brcmstb_gpio_bank *
-brcmstb_gpio_gc_to_bank(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- return container_of(bgc, struct brcmstb_gpio_bank, bgc);
-}
-
static inline struct brcmstb_gpio_priv *
brcmstb_gpio_gc_to_priv(struct gpio_chip *gc)
{
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
return bank->parent_priv;
}
static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
unsigned int offset, bool enable)
{
- struct bgpio_chip *bgc = &bank->bgc;
+ struct gpio_chip *gc = &bank->gc;
struct brcmstb_gpio_priv *priv = bank->parent_priv;
- u32 mask = bgc->pin2mask(bgc, offset);
+ u32 mask = gc->pin2mask(gc, offset);
u32 imask;
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
- imask = bgc->read_reg(priv->reg_base + GIO_MASK(bank->id));
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
+ imask = gc->read_reg(priv->reg_base + GIO_MASK(bank->id));
if (enable)
imask |= mask;
else
imask &= ~mask;
- bgc->write_reg(priv->reg_base + GIO_MASK(bank->id), imask);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ gc->write_reg(priv->reg_base + GIO_MASK(bank->id), imask);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
/* -------------------- IRQ chip functions -------------------- */
@@ -95,7 +87,7 @@ static void brcmstb_gpio_set_imask(struc
static void brcmstb_gpio_irq_mask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
brcmstb_gpio_set_imask(bank, d->hwirq, false);
}
@@ -103,7 +95,7 @@ static void brcmstb_gpio_irq_mask(struct
static void brcmstb_gpio_irq_unmask(struct irq_data *d)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
brcmstb_gpio_set_imask(bank, d->hwirq, true);
}
@@ -111,7 +103,7 @@ static void brcmstb_gpio_irq_unmask(stru
static int brcmstb_gpio_irq_set_type(struct irq_data *d, unsigned int type)
{
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
struct brcmstb_gpio_priv *priv = bank->parent_priv;
u32 mask = BIT(d->hwirq);
u32 edge_insensitive, iedge_insensitive;
@@ -149,23 +141,23 @@ static int brcmstb_gpio_irq_set_type(str
return -EINVAL;
}
- spin_lock_irqsave(&bank->bgc.lock, flags);
+ spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
- iedge_config = bank->bgc.read_reg(priv->reg_base +
+ iedge_config = bank->gc.read_reg(priv->reg_base +
GIO_EC(bank->id)) & ~mask;
- iedge_insensitive = bank->bgc.read_reg(priv->reg_base +
+ iedge_insensitive = bank->gc.read_reg(priv->reg_base +
GIO_EI(bank->id)) & ~mask;
- ilevel = bank->bgc.read_reg(priv->reg_base +
+ ilevel = bank->gc.read_reg(priv->reg_base +
GIO_LEVEL(bank->id)) & ~mask;
- bank->bgc.write_reg(priv->reg_base + GIO_EC(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_EC(bank->id),
iedge_config | edge_config);
- bank->bgc.write_reg(priv->reg_base + GIO_EI(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_EI(bank->id),
iedge_insensitive | edge_insensitive);
- bank->bgc.write_reg(priv->reg_base + GIO_LEVEL(bank->id),
+ bank->gc.write_reg(priv->reg_base + GIO_LEVEL(bank->id),
ilevel | level);
- spin_unlock_irqrestore(&bank->bgc.lock, flags);
+ spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
return 0;
}
@@ -210,29 +202,29 @@ static irqreturn_t brcmstb_gpio_wake_irq
static void brcmstb_gpio_irq_bank_handler(struct brcmstb_gpio_bank *bank)
{
struct brcmstb_gpio_priv *priv = bank->parent_priv;
- struct irq_domain *irq_domain = bank->bgc.gc.irqdomain;
+ struct irq_domain *irq_domain = bank->gc.irqdomain;
void __iomem *reg_base = priv->reg_base;
unsigned long status;
unsigned long flags;
- spin_lock_irqsave(&bank->bgc.lock, flags);
- while ((status = bank->bgc.read_reg(reg_base + GIO_STAT(bank->id)) &
- bank->bgc.read_reg(reg_base + GIO_MASK(bank->id)))) {
+ spin_lock_irqsave(&bank->gc.bgpio_lock, flags);
+ while ((status = bank->gc.read_reg(reg_base + GIO_STAT(bank->id)) &
+ bank->gc.read_reg(reg_base + GIO_MASK(bank->id)))) {
int bit;
for_each_set_bit(bit, &status, 32) {
- u32 stat = bank->bgc.read_reg(reg_base +
+ u32 stat = bank->gc.read_reg(reg_base +
GIO_STAT(bank->id));
if (bit >= bank->width)
dev_warn(&priv->pdev->dev,
"IRQ for invalid GPIO (bank=%d, offset=%d)\n",
bank->id, bit);
- bank->bgc.write_reg(reg_base + GIO_STAT(bank->id),
+ bank->gc.write_reg(reg_base + GIO_STAT(bank->id),
stat | BIT(bit));
generic_handle_irq(irq_find_mapping(irq_domain, bit));
}
}
- spin_unlock_irqrestore(&bank->bgc.lock, flags);
+ spin_unlock_irqrestore(&bank->gc.bgpio_lock, flags);
}
/* Each UPG GIO block has one IRQ for all banks */
@@ -303,9 +295,7 @@ static int brcmstb_gpio_remove(struct pl
*/
list_for_each(pos, &priv->bank_list) {
bank = list_entry(pos, struct brcmstb_gpio_bank, node);
- ret = bgpio_remove(&bank->bgc);
- if (ret)
- dev_err(&pdev->dev, "gpiochip_remove fail in cleanup\n");
+ gpiochip_remove(&bank->gc);
}
if (priv->reboot_notifier.notifier_call) {
ret = unregister_reboot_notifier(&priv->reboot_notifier);
@@ -320,7 +310,7 @@ static int brcmstb_gpio_of_xlate(struct
const struct of_phandle_args *gpiospec, u32 *flags)
{
struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc);
- struct brcmstb_gpio_bank *bank = brcmstb_gpio_gc_to_bank(gc);
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
int offset;
if (gc->of_gpio_n_cells != 2) {
@@ -398,9 +388,9 @@ static int brcmstb_gpio_irq_setup(struct
if (priv->can_wake)
bank->irq_chip.irq_set_wake = brcmstb_gpio_irq_set_wake;
- gpiochip_irqchip_add(&bank->bgc.gc, &bank->irq_chip, 0,
+ gpiochip_irqchip_add(&bank->gc, &bank->irq_chip, 0,
handle_simple_irq, IRQ_TYPE_NONE);
- gpiochip_set_chained_irqchip(&bank->bgc.gc, &bank->irq_chip,
+ gpiochip_set_chained_irqchip(&bank->gc, &bank->irq_chip,
priv->parent_irq, brcmstb_gpio_irq_handler);
return 0;
@@ -451,7 +441,6 @@ static int brcmstb_gpio_probe(struct pla
of_property_for_each_u32(np, "brcm,gpio-bank-widths", prop, p,
bank_width) {
struct brcmstb_gpio_bank *bank;
- struct bgpio_chip *bgc;
struct gpio_chip *gc;
bank = devm_kzalloc(dev, sizeof(*bank), GFP_KERNEL);
@@ -473,8 +462,8 @@ static int brcmstb_gpio_probe(struct pla
* Regs are 4 bytes wide, have data reg, no set/clear regs,
* and direction bits have 0 = output and 1 = input
*/
- bgc = &bank->bgc;
- err = bgpio_init(bgc, dev, 4,
+ gc = &bank->gc;
+ err = bgpio_init(gc, dev, 4,
reg_base + GIO_DATA(bank->id),
NULL, NULL, NULL,
reg_base + GIO_IODIR(bank->id), 0);
@@ -483,7 +472,6 @@ static int brcmstb_gpio_probe(struct pla
goto fail;
}
- gc = &bgc->gc;
gc->of_node = np;
gc->owner = THIS_MODULE;
gc->label = np->full_name;
@@ -497,9 +485,9 @@ static int brcmstb_gpio_probe(struct pla
* Mask all interrupts by default, since wakeup interrupts may
* be retained from S5 cold boot
*/
- bank->bgc.write_reg(reg_base + GIO_MASK(bank->id), 0);
+ gc->write_reg(reg_base + GIO_MASK(bank->id), 0);
- err = gpiochip_add(gc);
+ err = gpiochip_add_data(gc, bank);
if (err) {
dev_err(dev, "Could not add gpiochip for bank %d\n",
bank->id);
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -10,24 +10,23 @@
*/
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/platform_device.h>
static int clps711x_gpio_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
void __iomem *dat, *dir;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct resource *res;
int err, id = np ? of_alias_get_id(np, "gpio") : pdev->id;
if ((id < 0) || (id > 4))
return -ENODEV;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -43,11 +42,11 @@ static int clps711x_gpio_probe(struct pl
switch (id) {
case 3:
/* PORTD is inverted logic for direction register */
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
NULL, dir, 0);
break;
default:
- err = bgpio_init(bgc, &pdev->dev, 1, dat, NULL, NULL,
+ err = bgpio_init(gc, &pdev->dev, 1, dat, NULL, NULL,
dir, NULL, 0);
break;
}
@@ -58,24 +57,25 @@ static int clps711x_gpio_probe(struct pl
switch (id) {
case 4:
/* PORTE is 3 lines only */
- bgc->gc.ngpio = 3;
+ gc->ngpio = 3;
break;
default:
break;
}
- bgc->gc.base = id * 8;
- bgc->gc.owner = THIS_MODULE;
- platform_set_drvdata(pdev, bgc);
+ gc->base = id * 8;
+ gc->owner = THIS_MODULE;
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int clps711x_gpio_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct of_device_id __maybe_unused clps711x_gpio_ids[] = {
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -7,7 +7,9 @@
*
* All enquiries to support@picochip.com
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value(), replace this with direct register read */
+#include <linux/gpio.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -66,7 +68,7 @@ struct dwapb_context {
#endif
struct dwapb_gpio_port {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
bool is_registered;
struct dwapb_gpio *gpio;
#ifdef CONFIG_PM_SLEEP
@@ -83,33 +85,26 @@ struct dwapb_gpio {
struct irq_domain *domain;
};
-static inline struct dwapb_gpio_port *
-to_dwapb_gpio_port(struct bgpio_chip *bgc)
-{
- return container_of(bgc, struct dwapb_gpio_port, bgc);
-}
-
static inline u32 dwapb_read(struct dwapb_gpio *gpio, unsigned int offset)
{
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
void __iomem *reg_base = gpio->regs;
- return bgc->read_reg(reg_base + offset);
+ return gc->read_reg(reg_base + offset);
}
static inline void dwapb_write(struct dwapb_gpio *gpio, unsigned int offset,
u32 val)
{
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
void __iomem *reg_base = gpio->regs;
- bgc->write_reg(reg_base + offset, val);
+ gc->write_reg(reg_base + offset, val);
}
static int dwapb_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct dwapb_gpio_port *port = to_dwapb_gpio_port(bgc);
+ struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
return irq_find_mapping(gpio->domain, offset);
@@ -119,7 +114,7 @@ static void dwapb_toggle_trigger(struct
{
u32 v = dwapb_read(gpio, GPIO_INT_POLARITY);
- if (gpio_get_value(gpio->ports[0].bgc.gc.base + offs))
+ if (gpio_get_value(gpio->ports[0].gc.base + offs))
v &= ~BIT(offs);
else
v |= BIT(offs);
@@ -162,39 +157,39 @@ static void dwapb_irq_enable(struct irq_
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
u32 val;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val = dwapb_read(gpio, GPIO_INTEN);
val |= BIT(d->hwirq);
dwapb_write(gpio, GPIO_INTEN, val);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void dwapb_irq_disable(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
u32 val;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val = dwapb_read(gpio, GPIO_INTEN);
val &= ~BIT(d->hwirq);
dwapb_write(gpio, GPIO_INTEN, val);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static int dwapb_irq_reqres(struct irq_data *d)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
- if (gpiochip_lock_as_irq(&bgc->gc, irqd_to_hwirq(d))) {
+ if (gpiochip_lock_as_irq(gc, irqd_to_hwirq(d))) {
dev_err(gpio->dev, "unable to lock HW IRQ %lu for IRQ\n",
irqd_to_hwirq(d));
return -EINVAL;
@@ -206,16 +201,16 @@ static void dwapb_irq_relres(struct irq_
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
- gpiochip_unlock_as_irq(&bgc->gc, irqd_to_hwirq(d));
+ gpiochip_unlock_as_irq(gc, irqd_to_hwirq(d));
}
static int dwapb_irq_set_type(struct irq_data *d, u32 type)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
int bit = d->hwirq;
unsigned long level, polarity, flags;
@@ -223,7 +218,7 @@ static int dwapb_irq_set_type(struct irq
IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
return -EINVAL;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
level = dwapb_read(gpio, GPIO_INTTYPE_LEVEL);
polarity = dwapb_read(gpio, GPIO_INT_POLARITY);
@@ -254,7 +249,7 @@ static int dwapb_irq_set_type(struct irq
dwapb_write(gpio, GPIO_INTTYPE_LEVEL, level);
dwapb_write(gpio, GPIO_INT_POLARITY, polarity);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -262,13 +257,12 @@ static int dwapb_irq_set_type(struct irq
static int dwapb_gpio_set_debounce(struct gpio_chip *gc,
unsigned offset, unsigned debounce)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct dwapb_gpio_port *port = to_dwapb_gpio_port(bgc);
+ struct dwapb_gpio_port *port = gpiochip_get_data(gc);
struct dwapb_gpio *gpio = port->gpio;
unsigned long flags, val_deb;
- unsigned long mask = bgc->pin2mask(bgc, offset);
+ unsigned long mask = gc->pin2mask(gc, offset);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
val_deb = dwapb_read(gpio, GPIO_PORTA_DEBOUNCE);
if (debounce)
@@ -276,7 +270,7 @@ static int dwapb_gpio_set_debounce(struc
else
dwapb_write(gpio, GPIO_PORTA_DEBOUNCE, val_deb & ~mask);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -295,7 +289,7 @@ static void dwapb_configure_irqs(struct
struct dwapb_gpio_port *port,
struct dwapb_port_property *pp)
{
- struct gpio_chip *gc = &port->bgc.gc;
+ struct gpio_chip *gc = &port->gc;
struct device_node *node = pp->node;
struct irq_chip_generic *irq_gc = NULL;
unsigned int hwirq, ngpio = gc->ngpio;
@@ -369,13 +363,13 @@ static void dwapb_configure_irqs(struct
for (hwirq = 0 ; hwirq < ngpio ; hwirq++)
irq_create_mapping(gpio->domain, hwirq);
- port->bgc.gc.to_irq = dwapb_gpio_to_irq;
+ port->gc.to_irq = dwapb_gpio_to_irq;
}
static void dwapb_irq_teardown(struct dwapb_gpio *gpio)
{
struct dwapb_gpio_port *port = &gpio->ports[0];
- struct gpio_chip *gc = &port->bgc.gc;
+ struct gpio_chip *gc = &port->gc;
unsigned int ngpio = gc->ngpio;
irq_hw_number_t hwirq;
@@ -412,7 +406,7 @@ static int dwapb_gpio_add_port(struct dw
dirout = gpio->regs + GPIO_SWPORTA_DDR +
(pp->idx * GPIO_SWPORT_DDR_SIZE);
- err = bgpio_init(&port->bgc, gpio->dev, 4, dat, set, NULL, dirout,
+ err = bgpio_init(&port->gc, gpio->dev, 4, dat, set, NULL, dirout,
NULL, false);
if (err) {
dev_err(gpio->dev, "failed to init gpio chip for %s\n",
@@ -421,19 +415,19 @@ static int dwapb_gpio_add_port(struct dw
}
#ifdef CONFIG_OF_GPIO
- port->bgc.gc.of_node = pp->node;
+ port->gc.of_node = pp->node;
#endif
- port->bgc.gc.ngpio = pp->ngpio;
- port->bgc.gc.base = pp->gpio_base;
+ port->gc.ngpio = pp->ngpio;
+ port->gc.base = pp->gpio_base;
/* Only port A support debounce */
if (pp->idx == 0)
- port->bgc.gc.set_debounce = dwapb_gpio_set_debounce;
+ port->gc.set_debounce = dwapb_gpio_set_debounce;
if (pp->irq)
dwapb_configure_irqs(gpio, port, pp);
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
dev_err(gpio->dev, "failed to register gpiochip for %s\n",
pp->name);
@@ -449,7 +443,7 @@ static void dwapb_gpio_unregister(struct
for (m = 0; m < gpio->nr_ports; ++m)
if (gpio->ports[m].is_registered)
- gpiochip_remove(&gpio->ports[m].bgc.gc);
+ gpiochip_remove(&gpio->ports[m].gc);
}
static struct dwapb_platform_data *
@@ -591,11 +585,11 @@ static int dwapb_gpio_suspend(struct dev
{
struct platform_device *pdev = to_platform_device(dev);
struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
int i;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
for (i = 0; i < gpio->nr_ports; i++) {
unsigned int offset;
unsigned int idx = gpio->ports[i].idx;
@@ -624,7 +618,7 @@ static int dwapb_gpio_suspend(struct dev
dwapb_write(gpio, GPIO_INTMASK, 0xffffffff);
}
}
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
@@ -633,11 +627,11 @@ static int dwapb_gpio_resume(struct devi
{
struct platform_device *pdev = to_platform_device(dev);
struct dwapb_gpio *gpio = platform_get_drvdata(pdev);
- struct bgpio_chip *bgc = &gpio->ports[0].bgc;
+ struct gpio_chip *gc = &gpio->ports[0].gc;
unsigned long flags;
int i;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
for (i = 0; i < gpio->nr_ports; i++) {
unsigned int offset;
unsigned int idx = gpio->ports[i].idx;
@@ -666,7 +660,7 @@ static int dwapb_gpio_resume(struct devi
dwapb_write(gpio, GPIO_PORTA_EOI, 0xffffffff);
}
}
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -16,10 +16,11 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/io.h>
-#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: this is here for gpio_to_irq() - get rid of this! */
+#include <linux/gpio.h>
#include <mach/hardware.h>
#include <mach/gpio-ep93xx.h>
@@ -28,7 +29,7 @@
struct ep93xx_gpio {
void __iomem *mmio_base;
- struct bgpio_chip bgc[8];
+ struct gpio_chip gc[8];
};
/*************************************************************************
@@ -319,26 +320,26 @@ static int ep93xx_gpio_to_irq(struct gpi
return 64 + gpio;
}
-static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev,
+static int ep93xx_gpio_add_bank(struct gpio_chip *gc, struct device *dev,
void __iomem *mmio_base, struct ep93xx_gpio_bank *bank)
{
void __iomem *data = mmio_base + bank->data;
void __iomem *dir = mmio_base + bank->dir;
int err;
- err = bgpio_init(bgc, dev, 1, data, NULL, NULL, dir, NULL, 0);
+ err = bgpio_init(gc, dev, 1, data, NULL, NULL, dir, NULL, 0);
if (err)
return err;
- bgc->gc.label = bank->label;
- bgc->gc.base = bank->base;
+ gc->label = bank->label;
+ gc->base = bank->base;
if (bank->has_debounce) {
- bgc->gc.set_debounce = ep93xx_gpio_set_debounce;
- bgc->gc.to_irq = ep93xx_gpio_to_irq;
+ gc->set_debounce = ep93xx_gpio_set_debounce;
+ gc->to_irq = ep93xx_gpio_to_irq;
}
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int ep93xx_gpio_probe(struct platform_device *pdev)
@@ -358,10 +359,10 @@ static int ep93xx_gpio_probe(struct plat
return PTR_ERR(ep93xx_gpio->mmio_base);
for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) {
- struct bgpio_chip *bgc = &ep93xx_gpio->bgc[i];
+ struct gpio_chip *gc = &ep93xx_gpio->gc[i];
struct ep93xx_gpio_bank *bank = &ep93xx_gpio_banks[i];
- if (ep93xx_gpio_add_bank(bgc, &pdev->dev,
+ if (ep93xx_gpio_add_bank(gc, &pdev->dev,
ep93xx_gpio->mmio_base, bank))
dev_warn(&pdev->dev, "Unable to add gpio bank %s\n",
bank->label);
--- a/drivers/gpio/gpio-etraxfs.c
+++ b/drivers/gpio/gpio-etraxfs.c
@@ -1,12 +1,10 @@
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/of_gpio.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
-#include <linux/basic_mmio_gpio.h>
#define ETRAX_FS_rw_pa_dout 0
#define ETRAX_FS_r_pa_din 4
@@ -67,7 +65,7 @@ struct etraxfs_gpio_block {
};
struct etraxfs_gpio_chip {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
struct etraxfs_gpio_block *block;
};
@@ -176,11 +174,6 @@ static const struct etraxfs_gpio_info et
.rw_intr_pins = ARTPEC3_rw_intr_pins,
};
-static struct etraxfs_gpio_chip *to_etraxfs(struct gpio_chip *gc)
-{
- return container_of(gc, struct etraxfs_gpio_chip, bgc.gc);
-}
-
static unsigned int etraxfs_gpio_chip_to_port(struct gpio_chip *gc)
{
return gc->label[0] - 'A';
@@ -220,13 +213,13 @@ static unsigned int etraxfs_gpio_to_grou
static unsigned int etraxfs_gpio_to_group_pin(struct etraxfs_gpio_chip *chip,
unsigned int gpio)
{
- return 4 * etraxfs_gpio_chip_to_port(&chip->bgc.gc) + gpio / 8;
+ return 4 * etraxfs_gpio_chip_to_port(&chip->gc) + gpio / 8;
}
static void etraxfs_gpio_irq_ack(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -236,7 +229,7 @@ static void etraxfs_gpio_irq_ack(struct
static void etraxfs_gpio_irq_mask(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -249,7 +242,7 @@ static void etraxfs_gpio_irq_mask(struct
static void etraxfs_gpio_irq_unmask(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
@@ -262,7 +255,7 @@ static void etraxfs_gpio_irq_unmask(stru
static int etraxfs_gpio_irq_set_type(struct irq_data *d, u32 type)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
u32 cfg;
@@ -299,7 +292,7 @@ static int etraxfs_gpio_irq_set_type(str
static int etraxfs_gpio_irq_request_resources(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
int ret = -EBUSY;
@@ -308,7 +301,7 @@ static int etraxfs_gpio_irq_request_reso
if (block->group[grpirq])
goto out;
- ret = gpiochip_lock_as_irq(&chip->bgc.gc, d->hwirq);
+ ret = gpiochip_lock_as_irq(&chip->gc, d->hwirq);
if (ret)
goto out;
@@ -330,13 +323,13 @@ out:
static void etraxfs_gpio_irq_release_resources(struct irq_data *d)
{
struct etraxfs_gpio_chip *chip =
- to_etraxfs(irq_data_get_irq_chip_data(d));
+ gpiochip_get_data(irq_data_get_irq_chip_data(d));
struct etraxfs_gpio_block *block = chip->block;
unsigned int grpirq = etraxfs_gpio_to_group_irq(d->hwirq);
spin_lock(&block->lock);
block->group[grpirq] = 0;
- gpiochip_unlock_as_irq(&chip->bgc.gc, d->hwirq);
+ gpiochip_unlock_as_irq(&chip->gc, d->hwirq);
spin_unlock(&block->lock);
}
@@ -419,7 +412,7 @@ static int etraxfs_gpio_probe(struct pla
for (i = 0; i < info->num_ports; i++) {
struct etraxfs_gpio_chip *chip = &chips[i];
- struct bgpio_chip *bgc = &chip->bgc;
+ struct gpio_chip *gc = &chip->gc;
const struct etraxfs_gpio_port *port = &info->ports[i];
unsigned long flags = BGPIOF_READ_OUTPUT_REG_SET;
void __iomem *dat = regs + port->din;
@@ -433,7 +426,7 @@ static int etraxfs_gpio_probe(struct pla
flags = BGPIOF_NO_OUTPUT;
}
- ret = bgpio_init(bgc, dev, 4,
+ ret = bgpio_init(gc, dev, 4,
dat, set, NULL, dirout, NULL,
flags);
if (ret) {
@@ -442,28 +435,28 @@ static int etraxfs_gpio_probe(struct pla
continue;
}
- bgc->gc.ngpio = port->ngpio;
- bgc->gc.label = port->label;
+ gc->ngpio = port->ngpio;
+ gc->label = port->label;
- bgc->gc.of_node = dev->of_node;
- bgc->gc.of_gpio_n_cells = 3;
- bgc->gc.of_xlate = etraxfs_gpio_of_xlate;
+ gc->of_node = dev->of_node;
+ gc->of_gpio_n_cells = 3;
+ gc->of_xlate = etraxfs_gpio_of_xlate;
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, chip);
if (ret) {
dev_err(dev, "Unable to register port %s\n",
- bgc->gc.label);
+ gc->label);
continue;
}
if (i > 0 && !allportsirq)
continue;
- ret = gpiochip_irqchip_add(&bgc->gc, &etraxfs_gpio_irq_chip, 0,
+ ret = gpiochip_irqchip_add(gc, &etraxfs_gpio_irq_chip, 0,
handle_level_irq, IRQ_TYPE_NONE);
if (ret) {
dev_err(dev, "Unable to add irqchip to port %s\n",
- bgc->gc.label);
+ gc->label);
}
}
--- a/drivers/gpio/gpio-ge.c
+++ b/drivers/gpio/gpio-ge.c
@@ -24,7 +24,7 @@
#include <linux/of_gpio.h>
#include <linux/of_address.h>
#include <linux/module.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define GEF_GPIO_DIRECT 0x00
#define GEF_GPIO_IN 0x04
@@ -55,19 +55,19 @@ static int __init gef_gpio_probe(struct
{
const struct of_device_id *of_id =
of_match_device(gef_gpio_ids, &pdev->dev);
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
void __iomem *regs;
int ret;
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
regs = of_iomap(pdev->dev.of_node, 0);
if (!regs)
return -ENOMEM;
- ret = bgpio_init(bgc, &pdev->dev, 4, regs + GEF_GPIO_IN,
+ ret = bgpio_init(gc, &pdev->dev, 4, regs + GEF_GPIO_IN,
regs + GEF_GPIO_OUT, NULL, NULL,
regs + GEF_GPIO_DIRECT, BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (ret) {
@@ -76,20 +76,20 @@ static int __init gef_gpio_probe(struct
}
/* Setup pointers to chip functions */
- bgc->gc.label = devm_kstrdup(&pdev->dev, pdev->dev.of_node->full_name,
+ gc->label = devm_kstrdup(&pdev->dev, pdev->dev.of_node->full_name,
GFP_KERNEL);
- if (!bgc->gc.label) {
+ if (!gc->label) {
ret = -ENOMEM;
goto err0;
}
- bgc->gc.base = -1;
- bgc->gc.ngpio = (u16)(uintptr_t)of_id->data;
- bgc->gc.of_gpio_n_cells = 2;
- bgc->gc.of_node = pdev->dev.of_node;
+ gc->base = -1;
+ gc->ngpio = (u16)(uintptr_t)of_id->data;
+ gc->of_gpio_n_cells = 2;
+ gc->of_node = pdev->dev.of_node;
/* This function adds a memory mapped GPIO chip */
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, NULL);
if (ret)
goto err0;
--- a/drivers/gpio/gpio-generic.c
+++ b/drivers/gpio/gpio-generic.c
@@ -56,11 +56,10 @@ o ` ~~~~\___/
#include <linux/log2.h>
#include <linux/ioport.h>
#include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/mod_devicetable.h>
-#include <linux/basic_mmio_gpio.h>
static void bgpio_write8(void __iomem *reg, unsigned long data)
{
@@ -124,33 +123,30 @@ static unsigned long bgpio_read32be(void
return ioread32be(reg);
}
-static unsigned long bgpio_pin2mask(struct bgpio_chip *bgc, unsigned int pin)
+static unsigned long bgpio_pin2mask(struct gpio_chip *gc, unsigned int pin)
{
return 1 << pin;
}
-static unsigned long bgpio_pin2mask_be(struct bgpio_chip *bgc,
+static unsigned long bgpio_pin2mask_be(struct gpio_chip *gc,
unsigned int pin)
{
- return 1 << (bgc->bits - 1 - pin);
+ return 1 << (gc->bgpio_bits - 1 - pin);
}
static int bgpio_get_set(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long pinmask = bgc->pin2mask(bgc, gpio);
+ unsigned long pinmask = gc->pin2mask(gc, gpio);
- if (bgc->dir & pinmask)
- return !!(bgc->read_reg(bgc->reg_set) & pinmask);
+ if (gc->bgpio_dir & pinmask)
+ return !!(gc->read_reg(gc->reg_set) & pinmask);
else
- return !!(bgc->read_reg(bgc->reg_dat) & pinmask);
+ return !!(gc->read_reg(gc->reg_dat) & pinmask);
}
static int bgpio_get(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return !!(bgc->read_reg(bgc->reg_dat) & bgc->pin2mask(bgc, gpio));
+ return !!(gc->read_reg(gc->reg_dat) & gc->pin2mask(gc, gpio));
}
static void bgpio_set_none(struct gpio_chip *gc, unsigned int gpio, int val)
@@ -159,53 +155,50 @@ static void bgpio_set_none(struct gpio_c
static void bgpio_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
if (val)
- bgc->data |= mask;
+ gc->bgpio_data |= mask;
else
- bgc->data &= ~mask;
+ gc->bgpio_data &= ~mask;
- bgc->write_reg(bgc->reg_dat, bgc->data);
+ gc->write_reg(gc->reg_dat, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void bgpio_set_with_clear(struct gpio_chip *gc, unsigned int gpio,
int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
if (val)
- bgc->write_reg(bgc->reg_set, mask);
+ gc->write_reg(gc->reg_set, mask);
else
- bgc->write_reg(bgc->reg_clr, mask);
+ gc->write_reg(gc->reg_clr, mask);
}
static void bgpio_set_set(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- unsigned long mask = bgc->pin2mask(bgc, gpio);
+ unsigned long mask = gc->pin2mask(gc, gpio);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
if (val)
- bgc->data |= mask;
+ gc->bgpio_data |= mask;
else
- bgc->data &= ~mask;
+ gc->bgpio_data &= ~mask;
- bgc->write_reg(bgc->reg_set, bgc->data);
+ gc->write_reg(gc->reg_set, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
-static void bgpio_multiple_get_masks(struct bgpio_chip *bgc,
+static void bgpio_multiple_get_masks(struct gpio_chip *gc,
unsigned long *mask, unsigned long *bits,
unsigned long *set_mask,
unsigned long *clear_mask)
@@ -215,19 +208,19 @@ static void bgpio_multiple_get_masks(str
*set_mask = 0;
*clear_mask = 0;
- for (i = 0; i < bgc->bits; i++) {
+ for (i = 0; i < gc->bgpio_bits; i++) {
if (*mask == 0)
break;
if (__test_and_clear_bit(i, mask)) {
if (test_bit(i, bits))
- *set_mask |= bgc->pin2mask(bgc, i);
+ *set_mask |= gc->pin2mask(gc, i);
else
- *clear_mask |= bgc->pin2mask(bgc, i);
+ *clear_mask |= gc->pin2mask(gc, i);
}
}
}
-static void bgpio_set_multiple_single_reg(struct bgpio_chip *bgc,
+static void bgpio_set_multiple_single_reg(struct gpio_chip *gc,
unsigned long *mask,
unsigned long *bits,
void __iomem *reg)
@@ -235,47 +228,42 @@ static void bgpio_set_multiple_single_re
unsigned long flags;
unsigned long set_mask, clear_mask;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgpio_multiple_get_masks(bgc, mask, bits, &set_mask, &clear_mask);
+ bgpio_multiple_get_masks(gc, mask, bits, &set_mask, &clear_mask);
- bgc->data |= set_mask;
- bgc->data &= ~clear_mask;
+ gc->bgpio_data |= set_mask;
+ gc->bgpio_data &= ~clear_mask;
- bgc->write_reg(reg, bgc->data);
+ gc->write_reg(reg, gc->bgpio_data);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
}
static void bgpio_set_multiple(struct gpio_chip *gc, unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- bgpio_set_multiple_single_reg(bgc, mask, bits, bgc->reg_dat);
+ bgpio_set_multiple_single_reg(gc, mask, bits, gc->reg_dat);
}
static void bgpio_set_multiple_set(struct gpio_chip *gc, unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- bgpio_set_multiple_single_reg(bgc, mask, bits, bgc->reg_set);
+ bgpio_set_multiple_single_reg(gc, mask, bits, gc->reg_set);
}
static void bgpio_set_multiple_with_clear(struct gpio_chip *gc,
unsigned long *mask,
unsigned long *bits)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long set_mask, clear_mask;
- bgpio_multiple_get_masks(bgc, mask, bits, &set_mask, &clear_mask);
+ bgpio_multiple_get_masks(gc, mask, bits, &set_mask, &clear_mask);
if (set_mask)
- bgc->write_reg(bgc->reg_set, set_mask);
+ gc->write_reg(gc->reg_set, set_mask);
if (clear_mask)
- bgc->write_reg(bgc->reg_clr, clear_mask);
+ gc->write_reg(gc->reg_clr, clear_mask);
}
static int bgpio_simple_dir_in(struct gpio_chip *gc, unsigned int gpio)
@@ -299,111 +287,103 @@ static int bgpio_simple_dir_out(struct g
static int bgpio_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir &= ~bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir &= ~gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_get_dir(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return (bgc->read_reg(bgc->reg_dir) & bgc->pin2mask(bgc, gpio)) ?
- GPIOF_DIR_OUT : GPIOF_DIR_IN;
+ /* Return 0 if output, 1 of input */
+ return !(gc->read_reg(gc->reg_dir) & gc->pin2mask(gc, gpio));
}
static int bgpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
gc->set(gc, gpio, val);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir |= bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir |= gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_dir_in_inv(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir |= bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir |= gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_dir_out_inv(struct gpio_chip *gc, unsigned int gpio, int val)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
unsigned long flags;
gc->set(gc, gpio, val);
- spin_lock_irqsave(&bgc->lock, flags);
+ spin_lock_irqsave(&gc->bgpio_lock, flags);
- bgc->dir &= ~bgc->pin2mask(bgc, gpio);
- bgc->write_reg(bgc->reg_dir, bgc->dir);
+ gc->bgpio_dir &= ~gc->pin2mask(gc, gpio);
+ gc->write_reg(gc->reg_dir, gc->bgpio_dir);
- spin_unlock_irqrestore(&bgc->lock, flags);
+ spin_unlock_irqrestore(&gc->bgpio_lock, flags);
return 0;
}
static int bgpio_get_dir_inv(struct gpio_chip *gc, unsigned int gpio)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return (bgc->read_reg(bgc->reg_dir) & bgc->pin2mask(bgc, gpio)) ?
- GPIOF_DIR_IN : GPIOF_DIR_OUT;
+ /* Return 0 if output, 1 if input */
+ return !!(gc->read_reg(gc->reg_dir) & gc->pin2mask(gc, gpio));
}
static int bgpio_setup_accessors(struct device *dev,
- struct bgpio_chip *bgc,
+ struct gpio_chip *gc,
bool bit_be,
bool byte_be)
{
- switch (bgc->bits) {
+ switch (gc->bgpio_bits) {
case 8:
- bgc->read_reg = bgpio_read8;
- bgc->write_reg = bgpio_write8;
+ gc->read_reg = bgpio_read8;
+ gc->write_reg = bgpio_write8;
break;
case 16:
if (byte_be) {
- bgc->read_reg = bgpio_read16be;
- bgc->write_reg = bgpio_write16be;
+ gc->read_reg = bgpio_read16be;
+ gc->write_reg = bgpio_write16be;
} else {
- bgc->read_reg = bgpio_read16;
- bgc->write_reg = bgpio_write16;
+ gc->read_reg = bgpio_read16;
+ gc->write_reg = bgpio_write16;
}
break;
case 32:
if (byte_be) {
- bgc->read_reg = bgpio_read32be;
- bgc->write_reg = bgpio_write32be;
+ gc->read_reg = bgpio_read32be;
+ gc->write_reg = bgpio_write32be;
} else {
- bgc->read_reg = bgpio_read32;
- bgc->write_reg = bgpio_write32;
+ gc->read_reg = bgpio_read32;
+ gc->write_reg = bgpio_write32;
}
break;
#if BITS_PER_LONG >= 64
@@ -413,17 +393,17 @@ static int bgpio_setup_accessors(struct
"64 bit big endian byte order unsupported\n");
return -EINVAL;
} else {
- bgc->read_reg = bgpio_read64;
- bgc->write_reg = bgpio_write64;
+ gc->read_reg = bgpio_read64;
+ gc->write_reg = bgpio_write64;
}
break;
#endif /* BITS_PER_LONG >= 64 */
default:
- dev_err(dev, "unsupported data width %u bits\n", bgc->bits);
+ dev_err(dev, "unsupported data width %u bits\n", gc->bgpio_bits);
return -EINVAL;
}
- bgc->pin2mask = bit_be ? bgpio_pin2mask_be : bgpio_pin2mask;
+ gc->pin2mask = bit_be ? bgpio_pin2mask_be : bgpio_pin2mask;
return 0;
}
@@ -450,44 +430,44 @@ static int bgpio_setup_accessors(struct
* - an input direction register (named "dirin") where a 1 bit indicates
* the GPIO is an input.
*/
-static int bgpio_setup_io(struct bgpio_chip *bgc,
+static int bgpio_setup_io(struct gpio_chip *gc,
void __iomem *dat,
void __iomem *set,
void __iomem *clr,
unsigned long flags)
{
- bgc->reg_dat = dat;
- if (!bgc->reg_dat)
+ gc->reg_dat = dat;
+ if (!gc->reg_dat)
return -EINVAL;
if (set && clr) {
- bgc->reg_set = set;
- bgc->reg_clr = clr;
- bgc->gc.set = bgpio_set_with_clear;
- bgc->gc.set_multiple = bgpio_set_multiple_with_clear;
+ gc->reg_set = set;
+ gc->reg_clr = clr;
+ gc->set = bgpio_set_with_clear;
+ gc->set_multiple = bgpio_set_multiple_with_clear;
} else if (set && !clr) {
- bgc->reg_set = set;
- bgc->gc.set = bgpio_set_set;
- bgc->gc.set_multiple = bgpio_set_multiple_set;
+ gc->reg_set = set;
+ gc->set = bgpio_set_set;
+ gc->set_multiple = bgpio_set_multiple_set;
} else if (flags & BGPIOF_NO_OUTPUT) {
- bgc->gc.set = bgpio_set_none;
- bgc->gc.set_multiple = NULL;
+ gc->set = bgpio_set_none;
+ gc->set_multiple = NULL;
} else {
- bgc->gc.set = bgpio_set;
- bgc->gc.set_multiple = bgpio_set_multiple;
+ gc->set = bgpio_set;
+ gc->set_multiple = bgpio_set_multiple;
}
if (!(flags & BGPIOF_UNREADABLE_REG_SET) &&
(flags & BGPIOF_READ_OUTPUT_REG_SET))
- bgc->gc.get = bgpio_get_set;
+ gc->get = bgpio_get_set;
else
- bgc->gc.get = bgpio_get;
+ gc->get = bgpio_get;
return 0;
}
-static int bgpio_setup_direction(struct bgpio_chip *bgc,
+static int bgpio_setup_direction(struct gpio_chip *gc,
void __iomem *dirout,
void __iomem *dirin,
unsigned long flags)
@@ -495,21 +475,21 @@ static int bgpio_setup_direction(struct
if (dirout && dirin) {
return -EINVAL;
} else if (dirout) {
- bgc->reg_dir = dirout;
- bgc->gc.direction_output = bgpio_dir_out;
- bgc->gc.direction_input = bgpio_dir_in;
- bgc->gc.get_direction = bgpio_get_dir;
+ gc->reg_dir = dirout;
+ gc->direction_output = bgpio_dir_out;
+ gc->direction_input = bgpio_dir_in;
+ gc->get_direction = bgpio_get_dir;
} else if (dirin) {
- bgc->reg_dir = dirin;
- bgc->gc.direction_output = bgpio_dir_out_inv;
- bgc->gc.direction_input = bgpio_dir_in_inv;
- bgc->gc.get_direction = bgpio_get_dir_inv;
+ gc->reg_dir = dirin;
+ gc->direction_output = bgpio_dir_out_inv;
+ gc->direction_input = bgpio_dir_in_inv;
+ gc->get_direction = bgpio_get_dir_inv;
} else {
if (flags & BGPIOF_NO_OUTPUT)
- bgc->gc.direction_output = bgpio_dir_out_err;
+ gc->direction_output = bgpio_dir_out_err;
else
- bgc->gc.direction_output = bgpio_simple_dir_out;
- bgc->gc.direction_input = bgpio_simple_dir_in;
+ gc->direction_output = bgpio_simple_dir_out;
+ gc->direction_input = bgpio_simple_dir_in;
}
return 0;
@@ -523,14 +503,7 @@ static int bgpio_request(struct gpio_chi
return -EINVAL;
}
-int bgpio_remove(struct bgpio_chip *bgc)
-{
- gpiochip_remove(&bgc->gc);
- return 0;
-}
-EXPORT_SYMBOL_GPL(bgpio_remove);
-
-int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
+int bgpio_init(struct gpio_chip *gc, struct device *dev,
unsigned long sz, void __iomem *dat, void __iomem *set,
void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
unsigned long flags)
@@ -540,36 +513,36 @@ int bgpio_init(struct bgpio_chip *bgc, s
if (!is_power_of_2(sz))
return -EINVAL;
- bgc->bits = sz * 8;
- if (bgc->bits > BITS_PER_LONG)
+ gc->bgpio_bits = sz * 8;
+ if (gc->bgpio_bits > BITS_PER_LONG)
return -EINVAL;
- spin_lock_init(&bgc->lock);
- bgc->gc.dev = dev;
- bgc->gc.label = dev_name(dev);
- bgc->gc.base = -1;
- bgc->gc.ngpio = bgc->bits;
- bgc->gc.request = bgpio_request;
+ spin_lock_init(&gc->bgpio_lock);
+ gc->dev = dev;
+ gc->label = dev_name(dev);
+ gc->base = -1;
+ gc->ngpio = gc->bgpio_bits;
+ gc->request = bgpio_request;
- ret = bgpio_setup_io(bgc, dat, set, clr, flags);
+ ret = bgpio_setup_io(gc, dat, set, clr, flags);
if (ret)
return ret;
- ret = bgpio_setup_accessors(dev, bgc, flags & BGPIOF_BIG_ENDIAN,
+ ret = bgpio_setup_accessors(dev, gc, flags & BGPIOF_BIG_ENDIAN,
flags & BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (ret)
return ret;
- ret = bgpio_setup_direction(bgc, dirout, dirin, flags);
+ ret = bgpio_setup_direction(gc, dirout, dirin, flags);
if (ret)
return ret;
- bgc->data = bgc->read_reg(bgc->reg_dat);
- if (bgc->gc.set == bgpio_set_set &&
+ gc->bgpio_data = gc->read_reg(gc->reg_dat);
+ if (gc->set == bgpio_set_set &&
!(flags & BGPIOF_UNREADABLE_REG_SET))
- bgc->data = bgc->read_reg(bgc->reg_set);
- if (bgc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR))
- bgc->dir = bgc->read_reg(bgc->reg_dir);
+ gc->bgpio_data = gc->read_reg(gc->reg_set);
+ if (gc->reg_dir && !(flags & BGPIOF_UNREADABLE_REG_DIR))
+ gc->bgpio_dir = gc->read_reg(gc->reg_dir);
return ret;
}
@@ -607,7 +580,7 @@ static int bgpio_pdev_probe(struct platf
unsigned long sz;
unsigned long flags = pdev->id_entry->driver_data;
int err;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
struct bgpio_pdata *pdata = dev_get_platdata(dev);
r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat");
@@ -636,32 +609,33 @@ static int bgpio_pdev_probe(struct platf
if (IS_ERR(dirin))
return PTR_ERR(dirin);
- bgc = devm_kzalloc(&pdev->dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
- err = bgpio_init(bgc, dev, sz, dat, set, clr, dirout, dirin, flags);
+ err = bgpio_init(gc, dev, sz, dat, set, clr, dirout, dirin, flags);
if (err)
return err;
if (pdata) {
if (pdata->label)
- bgc->gc.label = pdata->label;
- bgc->gc.base = pdata->base;
+ gc->label = pdata->label;
+ gc->base = pdata->base;
if (pdata->ngpio > 0)
- bgc->gc.ngpio = pdata->ngpio;
+ gc->ngpio = pdata->ngpio;
}
- platform_set_drvdata(pdev, bgc);
+ platform_set_drvdata(pdev, gc);
- return gpiochip_add(&bgc->gc);
+ return gpiochip_add_data(gc, NULL);
}
static int bgpio_pdev_remove(struct platform_device *pdev)
{
- struct bgpio_chip *bgc = platform_get_drvdata(pdev);
+ struct gpio_chip *gc = platform_get_drvdata(pdev);
- return bgpio_remove(bgc);
+ gpiochip_remove(gc);
+ return 0;
}
static const struct platform_device_id bgpio_id_table[] = {
--- a/drivers/gpio/gpio-grgpio.c
+++ b/drivers/gpio/gpio-grgpio.c
@@ -31,7 +31,7 @@
#include <linux/gpio.h>
#include <linux/slab.h>
#include <linux/err.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
@@ -63,7 +63,7 @@ struct grgpio_lirq {
};
struct grgpio_priv {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
void __iomem *regs;
struct device *dev;
@@ -92,29 +92,22 @@ struct grgpio_priv {
struct grgpio_lirq lirqs[GRGPIO_MAX_NGPIO];
};
-static inline struct grgpio_priv *grgpio_gc_to_priv(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct grgpio_priv, bgc);
-}
-
static void grgpio_set_imask(struct grgpio_priv *priv, unsigned int offset,
int val)
{
- struct bgpio_chip *bgc = &priv->bgc;
- unsigned long mask = bgc->pin2mask(bgc, offset);
+ struct gpio_chip *gc = &priv->gc;
+ unsigned long mask = gc->pin2mask(gc, offset);
if (val)
priv->imask |= mask;
else
priv->imask &= ~mask;
- bgc->write_reg(priv->regs + GRGPIO_IMASK, priv->imask);
+ gc->write_reg(priv->regs + GRGPIO_IMASK, priv->imask);
}
static int grgpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct grgpio_priv *priv = grgpio_gc_to_priv(gc);
+ struct grgpio_priv *priv = gpiochip_get_data(gc);
if (offset >= gc->ngpio)
return -ENXIO;
@@ -158,15 +151,15 @@ static int grgpio_irq_set_type(struct ir
return -EINVAL;
}
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
- ipol = priv->bgc.read_reg(priv->regs + GRGPIO_IPOL) & ~mask;
- iedge = priv->bgc.read_reg(priv->regs + GRGPIO_IEDGE) & ~mask;
+ ipol = priv->gc.read_reg(priv->regs + GRGPIO_IPOL) & ~mask;
+ iedge = priv->gc.read_reg(priv->regs + GRGPIO_IEDGE) & ~mask;
- priv->bgc.write_reg(priv->regs + GRGPIO_IPOL, ipol | pol);
- priv->bgc.write_reg(priv->regs + GRGPIO_IEDGE, iedge | edge);
+ priv->gc.write_reg(priv->regs + GRGPIO_IPOL, ipol | pol);
+ priv->gc.write_reg(priv->regs + GRGPIO_IEDGE, iedge | edge);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return 0;
}
@@ -177,11 +170,11 @@ static void grgpio_irq_mask(struct irq_d
int offset = d->hwirq;
unsigned long flags;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
grgpio_set_imask(priv, offset, 0);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static void grgpio_irq_unmask(struct irq_data *d)
@@ -190,11 +183,11 @@ static void grgpio_irq_unmask(struct irq
int offset = d->hwirq;
unsigned long flags;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
grgpio_set_imask(priv, offset, 1);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static struct irq_chip grgpio_irq_chip = {
@@ -207,12 +200,12 @@ static struct irq_chip grgpio_irq_chip =
static irqreturn_t grgpio_irq_handler(int irq, void *dev)
{
struct grgpio_priv *priv = dev;
- int ngpio = priv->bgc.gc.ngpio;
+ int ngpio = priv->gc.ngpio;
unsigned long flags;
int i;
int match = 0;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/*
* For each gpio line, call its interrupt handler if it its underlying
@@ -228,7 +221,7 @@ static irqreturn_t grgpio_irq_handler(in
}
}
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
if (!match)
dev_warn(priv->dev, "No gpio line matched irq %d\n", irq);
@@ -260,7 +253,7 @@ static int grgpio_irq_map(struct irq_dom
dev_dbg(priv->dev, "Mapping irq %d for gpio line %d\n",
irq, offset);
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/* Request underlying irq if not already requested */
lirq->irq = irq;
@@ -273,14 +266,14 @@ static int grgpio_irq_map(struct irq_dom
"Could not request underlying irq %d\n",
uirq->uirq);
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return ret;
}
}
uirq->refcnt++;
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
/* Setup irq */
irq_set_chip_data(irq, priv);
@@ -298,13 +291,13 @@ static void grgpio_irq_unmap(struct irq_
struct grgpio_lirq *lirq;
struct grgpio_uirq *uirq;
unsigned long flags;
- int ngpio = priv->bgc.gc.ngpio;
+ int ngpio = priv->gc.ngpio;
int i;
irq_set_chip_and_handler(irq, NULL, NULL);
irq_set_chip_data(irq, NULL);
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
/* Free underlying irq if last user unmapped */
index = -1;
@@ -326,7 +319,7 @@ static void grgpio_irq_unmap(struct irq_
free_irq(uirq->uirq, priv);
}
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
}
static const struct irq_domain_ops grgpio_irq_domain_ops = {
@@ -341,7 +334,6 @@ static int grgpio_probe(struct platform_
struct device_node *np = ofdev->dev.of_node;
void __iomem *regs;
struct gpio_chip *gc;
- struct bgpio_chip *bgc;
struct grgpio_priv *priv;
struct resource *res;
int err;
@@ -359,8 +351,8 @@ static int grgpio_probe(struct platform_
if (IS_ERR(regs))
return PTR_ERR(regs);
- bgc = &priv->bgc;
- err = bgpio_init(bgc, &ofdev->dev, 4, regs + GRGPIO_DATA,
+ gc = &priv->gc;
+ err = bgpio_init(gc, &ofdev->dev, 4, regs + GRGPIO_DATA,
regs + GRGPIO_OUTPUT, NULL, regs + GRGPIO_DIR, NULL,
BGPIOF_BIG_ENDIAN_BYTE_ORDER);
if (err) {
@@ -369,10 +361,9 @@ static int grgpio_probe(struct platform_
}
priv->regs = regs;
- priv->imask = bgc->read_reg(regs + GRGPIO_IMASK);
+ priv->imask = gc->read_reg(regs + GRGPIO_IMASK);
priv->dev = &ofdev->dev;
- gc = &bgc->gc;
gc->of_node = np;
gc->owner = THIS_MODULE;
gc->to_irq = grgpio_to_irq;
@@ -435,7 +426,7 @@ static int grgpio_probe(struct platform_
platform_set_drvdata(ofdev, priv);
- err = gpiochip_add(gc);
+ err = gpiochip_add_data(gc, priv);
if (err) {
dev_err(&ofdev->dev, "Could not add gpiochip\n");
if (priv->domain)
@@ -456,7 +447,7 @@ static int grgpio_remove(struct platform
int i;
int ret = 0;
- spin_lock_irqsave(&priv->bgc.lock, flags);
+ spin_lock_irqsave(&priv->gc.bgpio_lock, flags);
if (priv->domain) {
for (i = 0; i < GRGPIO_MAX_NGPIO; i++) {
@@ -467,13 +458,13 @@ static int grgpio_remove(struct platform
}
}
- gpiochip_remove(&priv->bgc.gc);
+ gpiochip_remove(&priv->gc);
if (priv->domain)
irq_domain_remove(priv->domain);
out:
- spin_unlock_irqrestore(&priv->bgc.lock, flags);
+ spin_unlock_irqrestore(&priv->gc.bgpio_lock, flags);
return ret;
}
--- a/drivers/gpio/gpio-moxart.c
+++ b/drivers/gpio/gpio-moxart.c
@@ -14,7 +14,6 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/io.h>
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/of_address.h>
@@ -23,7 +22,7 @@
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/bitops.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define GPIO_DATA_OUT 0x00
#define GPIO_DATA_IN 0x04
@@ -33,12 +32,12 @@ static int moxart_gpio_probe(struct plat
{
struct device *dev = &pdev->dev;
struct resource *res;
- struct bgpio_chip *bgc;
+ struct gpio_chip *gc;
void __iomem *base;
int ret;
- bgc = devm_kzalloc(dev, sizeof(*bgc), GFP_KERNEL);
- if (!bgc)
+ gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -46,7 +45,7 @@ static int moxart_gpio_probe(struct plat
if (IS_ERR(base))
return PTR_ERR(base);
- ret = bgpio_init(bgc, dev, 4, base + GPIO_DATA_IN,
+ ret = bgpio_init(gc, dev, 4, base + GPIO_DATA_IN,
base + GPIO_DATA_OUT, NULL,
base + GPIO_PIN_DIRECTION, NULL,
BGPIOF_READ_OUTPUT_REG_SET);
@@ -55,16 +54,16 @@ static int moxart_gpio_probe(struct plat
return ret;
}
- bgc->gc.label = "moxart-gpio";
- bgc->gc.request = gpiochip_generic_request;
- bgc->gc.free = gpiochip_generic_free;
- bgc->data = bgc->read_reg(bgc->reg_set);
- bgc->gc.base = 0;
- bgc->gc.ngpio = 32;
- bgc->gc.dev = dev;
- bgc->gc.owner = THIS_MODULE;
+ gc->label = "moxart-gpio";
+ gc->request = gpiochip_generic_request;
+ gc->free = gpiochip_generic_free;
+ gc->bgpio_data = bgc->read_reg(bgc->reg_set);
+ gc->base = 0;
+ gc->ngpio = 32;
+ gc->dev = dev;
+ gc->owner = THIS_MODULE;
- ret = gpiochip_add(&bgc->gc);
+ ret = gpiochip_add_data(gc, NULL);
if (ret) {
dev_err(dev, "%s: gpiochip_add failed\n",
dev->of_node->full_name);
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -26,10 +26,11 @@
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
-#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value() replace this with direct register read */
+#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/module.h>
@@ -64,7 +65,7 @@ struct mxc_gpio_port {
int irq;
int irq_high;
struct irq_domain *domain;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
u32 both_edges;
};
@@ -172,7 +173,7 @@ static int gpio_set_irq_type(struct irq_
struct mxc_gpio_port *port = gc->private;
u32 bit, val;
u32 gpio_idx = d->hwirq;
- u32 gpio = port->bgc.gc.base + gpio_idx;
+ u32 gpio = port->gc.base + gpio_idx;
int edge;
void __iomem *reg = port->base;
@@ -398,9 +399,7 @@ static void mxc_gpio_get_hw(struct platf
static int mxc_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxc_gpio_port *port =
- container_of(bgc, struct mxc_gpio_port, bgc);
+ struct mxc_gpio_port *port = gpiochip_get_data(gc);
return irq_find_mapping(port->domain, offset);
}
@@ -451,7 +450,7 @@ static int mxc_gpio_probe(struct platfor
port);
}
- err = bgpio_init(&port->bgc, &pdev->dev, 4,
+ err = bgpio_init(&port->gc, &pdev->dev, 4,
port->base + GPIO_PSR,
port->base + GPIO_DR, NULL,
port->base + GPIO_GDIR, NULL,
@@ -459,13 +458,13 @@ static int mxc_gpio_probe(struct platfor
if (err)
goto out_bgio;
- port->bgc.gc.to_irq = mxc_gpio_to_irq;
- port->bgc.gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
+ port->gc.to_irq = mxc_gpio_to_irq;
+ port->gc.base = (pdev->id < 0) ? of_alias_get_id(np, "gpio") * 32 :
pdev->id * 32;
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
- goto out_bgpio_remove;
+ goto out_bgio;
irq_base = irq_alloc_descs(-1, 0, 32, numa_node_id());
if (irq_base < 0) {
@@ -494,9 +493,7 @@ out_irqdomain_remove:
out_irqdesc_free:
irq_free_descs(irq_base, 32);
out_gpiochip_remove:
- gpiochip_remove(&port->bgc.gc);
-out_bgpio_remove:
- bgpio_remove(&port->bgc);
+ gpiochip_remove(&port->gc);
out_bgio:
dev_info(&pdev->dev, "%s failed with errno %d\n", __func__, err);
return err;
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -26,13 +26,14 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
-#include <linux/gpio.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
+/* FIXME: for gpio_get_value(), replace this by direct register read */
+#include <linux/gpio.h>
#include <linux/module.h>
#define MXS_SET 0x4
@@ -64,7 +65,7 @@ struct mxs_gpio_port {
int id;
int irq;
struct irq_domain *domain;
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
enum mxs_gpio_id devid;
u32 both_edges;
};
@@ -93,7 +94,7 @@ static int mxs_gpio_set_irq_type(struct
port->both_edges &= ~pin_mask;
switch (type) {
case IRQ_TYPE_EDGE_BOTH:
- val = gpio_get_value(port->bgc.gc.base + d->hwirq);
+ val = gpio_get_value(port->gc.base + d->hwirq);
if (val)
edge = GPIO_INT_FALL_EDGE;
else
@@ -225,18 +226,14 @@ static int __init mxs_gpio_init_gc(struc
static int mxs_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxs_gpio_port *port =
- container_of(bgc, struct mxs_gpio_port, bgc);
+ struct mxs_gpio_port *port = gpiochip_get_data(gc);
return irq_find_mapping(port->domain, offset);
}
static int mxs_gpio_get_direction(struct gpio_chip *gc, unsigned offset)
{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
- struct mxs_gpio_port *port =
- container_of(bgc, struct mxs_gpio_port, bgc);
+ struct mxs_gpio_port *port = gpiochip_get_data(gc);
u32 mask = 1 << offset;
u32 dir;
@@ -330,26 +327,24 @@ static int mxs_gpio_probe(struct platfor
irq_set_chained_handler_and_data(port->irq, mxs_gpio_irq_handler,
port);
- err = bgpio_init(&port->bgc, &pdev->dev, 4,
+ err = bgpio_init(&port->gc, &pdev->dev, 4,
port->base + PINCTRL_DIN(port),
port->base + PINCTRL_DOUT(port) + MXS_SET,
port->base + PINCTRL_DOUT(port) + MXS_CLR,
port->base + PINCTRL_DOE(port), NULL, 0);
if (err)
- goto out_irqdesc_free;
+ goto out_irqdomain_remove;
- port->bgc.gc.to_irq = mxs_gpio_to_irq;
- port->bgc.gc.get_direction = mxs_gpio_get_direction;
- port->bgc.gc.base = port->id * 32;
+ port->gc.to_irq = mxs_gpio_to_irq;
+ port->gc.get_direction = mxs_gpio_get_direction;
+ port->gc.base = port->id * 32;
- err = gpiochip_add(&port->bgc.gc);
+ err = gpiochip_add_data(&port->gc, port);
if (err)
- goto out_bgpio_remove;
+ goto out_irqdomain_remove;
return 0;
-out_bgpio_remove:
- bgpio_remove(&port->bgc);
out_irqdomain_remove:
irq_domain_remove(port->domain);
out_irqdesc_free:
--- a/drivers/gpio/gpio-sodaville.c
+++ b/drivers/gpio/gpio-sodaville.c
@@ -10,7 +10,6 @@
*/
#include <linux/errno.h>
-#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -20,7 +19,7 @@
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/of_irq.h>
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#define DRV_NAME "sdv_gpio"
#define SDV_NUM_PUB_GPIOS 12
@@ -43,7 +42,7 @@ struct sdv_gpio_chip_data {
void __iomem *gpio_pub_base;
struct irq_domain *id;
struct irq_chip_generic *gc;
- struct bgpio_chip bgpio;
+ struct gpio_chip chip;
};
static int sdv_gpio_pub_set_type(struct irq_data *d, unsigned int type)
@@ -226,14 +225,14 @@ static int sdv_gpio_probe(struct pci_dev
writel(mux_val, sd->gpio_pub_base + GPMUXCTL);
}
- ret = bgpio_init(&sd->bgpio, &pdev->dev, 4,
+ ret = bgpio_init(&sd->chip, &pdev->dev, 4,
sd->gpio_pub_base + GPINR, sd->gpio_pub_base + GPOUTR,
NULL, sd->gpio_pub_base + GPOER, NULL, 0);
if (ret)
goto unmap;
- sd->bgpio.gc.ngpio = SDV_NUM_PUB_GPIOS;
+ sd->chip.ngpio = SDV_NUM_PUB_GPIOS;
- ret = gpiochip_add(&sd->bgpio.gc);
+ ret = gpiochip_add_data(&sd->chip, sd);
if (ret < 0) {
dev_err(&pdev->dev, "gpiochip_add() failed.\n");
goto unmap;
@@ -265,7 +264,7 @@ static void sdv_gpio_remove(struct pci_d
free_irq(pdev->irq, sd);
irq_free_descs(sd->irq_base, SDV_NUM_PUB_GPIOS);
- gpiochip_remove(&sd->bgpio.gc);
+ gpiochip_remove(&sd->chip);
pci_release_region(pdev, GPIO_BAR);
iounmap(sd->gpio_pub_base);
pci_disable_device(pdev);
--- a/drivers/gpio/gpio-xgene-sb.c
+++ b/drivers/gpio/gpio-xgene-sb.c
@@ -23,10 +23,8 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/of_gpio.h>
-#include <linux/gpio.h>
#include <linux/gpio/driver.h>
#include <linux/acpi.h>
-#include <linux/basic_mmio_gpio.h>
#include "gpiolib.h"
@@ -43,38 +41,31 @@
/**
* struct xgene_gpio_sb - GPIO-Standby private data structure.
- * @bgc: memory-mapped GPIO controllers.
+ * @gc: memory-mapped GPIO controllers.
* @irq: Mapping GPIO pins and interrupt number
* nirq: Number of GPIO pins that supports interrupt
*/
struct xgene_gpio_sb {
- struct bgpio_chip bgc;
+ struct gpio_chip gc;
u32 *irq;
u32 nirq;
};
-static inline struct xgene_gpio_sb *to_xgene_gpio_sb(struct gpio_chip *gc)
-{
- struct bgpio_chip *bgc = to_bgpio_chip(gc);
-
- return container_of(bgc, struct xgene_gpio_sb, bgc);
-}
-
-static void xgene_gpio_set_bit(struct bgpio_chip *bgc, void __iomem *reg, u32 gpio, int val)
+static void xgene_gpio_set_bit(struct gpio_chip *gc, void __iomem *reg, u32 gpio, int val)
{
u32 data;
- data = bgc->read_reg(reg);
+ data = gc->read_reg(reg);
if (val)
data |= GPIO_MASK(gpio);
else
data &= ~GPIO_MASK(gpio);
- bgc->write_reg(reg, data);
+ gc->write_reg(reg, data);
}
static int apm_gpio_sb_to_irq(struct gpio_chip *gc, u32 gpio)
{
- struct xgene_gpio_sb *priv = to_xgene_gpio_sb(gc);
+ struct xgene_gpio_sb *priv = gpiochip_get_data(gc);
if (priv->irq[gpio])
return priv->irq[gpio];
@@ -99,15 +90,15 @@ static int xgene_gpio_sb_probe(struct pl
if (IS_ERR(regs))
return PTR_ERR(regs);
- ret = bgpio_init(&priv->bgc, &pdev->dev, 4,
+ ret = bgpio_init(&priv->gc, &pdev->dev, 4,
regs + MPA_GPIO_IN_ADDR,
regs + MPA_GPIO_OUT_ADDR, NULL,
regs + MPA_GPIO_OE_ADDR, NULL, 0);
if (ret)
return ret;
- priv->bgc.gc.to_irq = apm_gpio_sb_to_irq;
- priv->bgc.gc.ngpio = XGENE_MAX_GPIO_DS;
+ priv->gc.to_irq = apm_gpio_sb_to_irq;
+ priv->gc.ngpio = XGENE_MAX_GPIO_DS;
priv->nirq = XGENE_MAX_GPIO_DS_IRQ;
@@ -118,14 +109,14 @@ static int xgene_gpio_sb_probe(struct pl
for (i = 0; i < priv->nirq; i++) {
priv->irq[default_lines[i]] = platform_get_irq(pdev, i);
- xgene_gpio_set_bit(&priv->bgc, regs + MPA_GPIO_SEL_LO,
+ xgene_gpio_set_bit(&priv->gc, regs + MPA_GPIO_SEL_LO,
default_lines[i] * 2, 1);
- xgene_gpio_set_bit(&priv->bgc, regs + MPA_GPIO_INT_LVL, i, 1);
+ xgene_gpio_set_bit(&priv->gc, regs + MPA_GPIO_INT_LVL, i, 1);
}
platform_set_drvdata(pdev, priv);
- ret = gpiochip_add(&priv->bgc.gc);
+ ret = gpiochip_add_data(&priv->gc, priv);
if (ret)
dev_err(&pdev->dev, "failed to register X-Gene GPIO Standby driver\n");
else
@@ -133,7 +124,7 @@ static int xgene_gpio_sb_probe(struct pl
if (priv->nirq > 0) {
/* Register interrupt handlers for gpio signaled acpi events */
- acpi_gpiochip_request_interrupts(&priv->bgc.gc);
+ acpi_gpiochip_request_interrupts(&priv->gc);
}
return ret;
@@ -144,10 +135,11 @@ static int xgene_gpio_sb_remove(struct p
struct xgene_gpio_sb *priv = platform_get_drvdata(pdev);
if (priv->nirq > 0) {
- acpi_gpiochip_free_interrupts(&priv->bgc.gc);
+ acpi_gpiochip_free_interrupts(&priv->gc);
}
- return bgpio_remove(&priv->bgc);
+ gpiochip_remove(&priv->gc);
+ return 0;
}
static const struct of_device_id xgene_gpio_sb_of_match[] = {
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -11,7 +11,7 @@
* Copyright (C) 2012 ARM Limited
*/
-#include <linux/basic_mmio_gpio.h>
+#include <linux/gpio/driver.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mfd/core.h>
@@ -164,7 +164,7 @@ static int vexpress_sysreg_probe(struct
{
struct resource *mem;
void __iomem *base;
- struct bgpio_chip *mmc_gpio_chip;
+ struct gpio_chip *mmc_gpio_chip;
int master;
u32 dt_hbi;
@@ -201,8 +201,8 @@ static int vexpress_sysreg_probe(struct
return -ENOMEM;
bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
NULL, NULL, NULL, NULL, 0);
- mmc_gpio_chip->gc.ngpio = 2;
- gpiochip_add(&mmc_gpio_chip->gc);
+ mmc_gpio_chip->ngpio = 2;
+ gpiochip_add(mmc_gpio_chip);
return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
vexpress_sysreg_cells,
--- a/include/linux/basic_mmio_gpio.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Basic memory-mapped GPIO controllers.
- *
- * Copyright 2008 MontaVista Software, Inc.
- * Copyright 2008,2010 Anton Vorontsov <cbouatmailru@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef __BASIC_MMIO_GPIO_H
-#define __BASIC_MMIO_GPIO_H
-
-#include <linux/gpio.h>
-#include <linux/types.h>
-#include <linux/compiler.h>
-#include <linux/spinlock_types.h>
-
-struct bgpio_pdata {
- const char *label;
- int base;
- int ngpio;
-};
-
-struct device;
-
-struct bgpio_chip {
- struct gpio_chip gc;
-
- unsigned long (*read_reg)(void __iomem *reg);
- void (*write_reg)(void __iomem *reg, unsigned long data);
-
- void __iomem *reg_dat;
- void __iomem *reg_set;
- void __iomem *reg_clr;
- void __iomem *reg_dir;
-
- /* Number of bits (GPIOs): <register width> * 8. */
- int bits;
-
- /*
- * Some GPIO controllers work with the big-endian bits notation,
- * e.g. in a 8-bits register, GPIO7 is the least significant bit.
- */
- unsigned long (*pin2mask)(struct bgpio_chip *bgc, unsigned int pin);
-
- /*
- * Used to lock bgpio_chip->data. Also, this is needed to keep
- * shadowed and real data registers writes together.
- */
- spinlock_t lock;
-
- /* Shadowed data register to clear/set bits safely. */
- unsigned long data;
-
- /* Shadowed direction registers to clear/set direction safely. */
- unsigned long dir;
-};
-
-static inline struct bgpio_chip *to_bgpio_chip(struct gpio_chip *gc)
-{
- return container_of(gc, struct bgpio_chip, gc);
-}
-
-int bgpio_remove(struct bgpio_chip *bgc);
-int bgpio_init(struct bgpio_chip *bgc, struct device *dev,
- unsigned long sz, void __iomem *dat, void __iomem *set,
- void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
- unsigned long flags);
-
-#define BGPIOF_BIG_ENDIAN BIT(0)
-#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */
-#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */
-#define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
-#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
-#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
-
-#endif /* __BASIC_MMIO_GPIO_H */
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -8,6 +8,7 @@
#include <linux/irqdomain.h>
#include <linux/lockdep.h>
#include <linux/pinctrl/pinctrl.h>
+#include <linux/kconfig.h>
struct device;
struct gpio_desc;
@@ -66,6 +67,23 @@ struct seq_file;
* registers.
* @irq_not_threaded: flag must be set if @can_sleep is set but the
* IRQs don't need to be threaded
+ * @read_reg: reader function for generic GPIO
+ * @write_reg: writer function for generic GPIO
+ * @pin2mask: some generic GPIO controllers work with the big-endian bits
+ * notation, e.g. in a 8-bits register, GPIO7 is the least significant
+ * bit. This callback assigns the right bit mask.
+ * @reg_dat: data (in) register for generic GPIO
+ * @reg_set: output set register (out=high) for generic GPIO
+ * @reg_clk: output clear register (out=low) for generic GPIO
+ * @reg_dir: direction setting register for generic GPIO
+ * @bgpio_bits: number of register bits used for a generic GPIO i.e.
+ * <register width> * 8
+ * @bgpio_lock: used to lock chip->bgpio_data. Also, this is needed to keep
+ * shadowed and real data registers writes together.
+ * @bgpio_data: shadowed data register for generic GPIO to clear/set bits
+ * safely.
+ * @bgpio_dir: shadowed direction register for generic GPIO to clear/set
+ * direction safely.
* @irqchip: GPIO IRQ chip impl, provided by GPIO driver
* @irqdomain: Interrupt translation domain; responsible for mapping
* between GPIO hwirq number and linux irq number
@@ -129,6 +147,20 @@ struct gpio_chip {
bool can_sleep;
bool irq_not_threaded;
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
+ unsigned long (*read_reg)(void __iomem *reg);
+ void (*write_reg)(void __iomem *reg, unsigned long data);
+ unsigned long (*pin2mask)(struct gpio_chip *gc, unsigned int pin);
+ void __iomem *reg_dat;
+ void __iomem *reg_set;
+ void __iomem *reg_clr;
+ void __iomem *reg_dir;
+ int bgpio_bits;
+ spinlock_t bgpio_lock;
+ unsigned long bgpio_data;
+ unsigned long bgpio_dir;
+#endif
+
#ifdef CONFIG_GPIOLIB_IRQCHIP
/*
* With CONFIG_GPIOLIB_IRQCHIP we get an irqchip inside the gpiolib
@@ -189,6 +221,28 @@ static inline void *gpiochip_get_data(st
struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
+#if IS_ENABLED(CONFIG_GPIO_GENERIC)
+
+struct bgpio_pdata {
+ const char *label;
+ int base;
+ int ngpio;
+};
+
+int bgpio_init(struct gpio_chip *gc, struct device *dev,
+ unsigned long sz, void __iomem *dat, void __iomem *set,
+ void __iomem *clr, void __iomem *dirout, void __iomem *dirin,
+ unsigned long flags);
+
+#define BGPIOF_BIG_ENDIAN BIT(0)
+#define BGPIOF_UNREADABLE_REG_SET BIT(1) /* reg_set is unreadable */
+#define BGPIOF_UNREADABLE_REG_DIR BIT(2) /* reg_dir is unreadable */
+#define BGPIOF_BIG_ENDIAN_BYTE_ORDER BIT(3)
+#define BGPIOF_READ_OUTPUT_REG_SET BIT(4) /* reg_set stores output value */
+#define BGPIOF_NO_OUTPUT BIT(5) /* only input */
+
+#endif
+
#ifdef CONFIG_GPIOLIB_IRQCHIP
void gpiochip_set_chained_irqchip(struct gpio_chip *gpiochip,
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