125 lines
4.6 KiB
Diff
125 lines
4.6 KiB
Diff
|
From 938dfdaa3c0f92e9a490d324f3bce43bbaef7632 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Chen-Yu Tsai <wens@csie.org>
|
||
|
|
Date: Fri, 17 Jan 2014 21:24:42 +0800
|
||
|
|
Subject: [PATCH] net: stmmac: Allocate and pass soc/board specific data to
|
||
|
|
callbacks
|
||
|
|
|
||
|
|
The current .init and .exit callbacks requires access to driver
|
||
|
|
private data structures. This is not a good seperation and abstraction.
|
||
|
|
|
||
|
|
Instead, we add a new .setup callback for allocating private data, and
|
||
|
|
pass the returned pointer to the other callbacks.
|
||
|
|
|
||
|
|
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
|
||
|
|
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|
|
---
|
||
|
|
Documentation/networking/stmmac.txt | 12 ++++++++----
|
||
|
|
drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 18 ++++++++++++++----
|
||
|
|
include/linux/stmmac.h | 6 ++++--
|
||
|
|
3 files changed, 26 insertions(+), 10 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/Documentation/networking/stmmac.txt b/Documentation/networking/stmmac.txt
|
||
|
|
index cdd916d..2090895 100644
|
||
|
|
--- a/Documentation/networking/stmmac.txt
|
||
|
|
+++ b/Documentation/networking/stmmac.txt
|
||
|
|
@@ -127,8 +127,9 @@ struct plat_stmmacenet_data {
|
||
|
|
int riwt_off;
|
||
|
|
void (*fix_mac_speed)(void *priv, unsigned int speed);
|
||
|
|
void (*bus_setup)(void __iomem *ioaddr);
|
||
|
|
- int (*init)(struct platform_device *pdev);
|
||
|
|
- void (*exit)(struct platform_device *pdev);
|
||
|
|
+ void *(*setup)(struct platform_device *pdev);
|
||
|
|
+ int (*init)(struct platform_device *pdev, void *priv);
|
||
|
|
+ void (*exit)(struct platform_device *pdev, void *priv);
|
||
|
|
void *custom_cfg;
|
||
|
|
void *custom_data;
|
||
|
|
void *bsp_priv;
|
||
|
|
@@ -169,10 +170,13 @@ Where:
|
||
|
|
o bus_setup: perform HW setup of the bus. For example, on some ST platforms
|
||
|
|
this field is used to configure the AMBA bridge to generate more
|
||
|
|
efficient STBus traffic.
|
||
|
|
- o init/exit: callbacks used for calling a custom initialization;
|
||
|
|
+ o setup/init/exit: callbacks used for calling a custom initialization;
|
||
|
|
this is sometime necessary on some platforms (e.g. ST boxes)
|
||
|
|
where the HW needs to have set some PIO lines or system cfg
|
||
|
|
- registers.
|
||
|
|
+ registers. setup should return a pointer to private data,
|
||
|
|
+ which will be stored in bsp_priv, and then passed to init and
|
||
|
|
+ exit callbacks. init/exit callbacks should not use or modify
|
||
|
|
+ platform data.
|
||
|
|
o custom_cfg/custom_data: this is a custom configuration that can be passed
|
||
|
|
while initializing the resources.
|
||
|
|
o bsp_priv: another private pointer.
|
||
|
|
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
|
||
|
|
index cc6b89a7..704a5e0 100644
|
||
|
|
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
|
||
|
|
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
|
||
|
|
@@ -144,9 +144,16 @@ static int stmmac_pltfr_probe(struct platform_device *pdev)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
+ /* Custom setup (if needed) */
|
||
|
|
+ if (plat_dat->setup) {
|
||
|
|
+ plat_dat->bsp_priv = plat_dat->setup(pdev);
|
||
|
|
+ if (IS_ERR(plat_dat->bsp_priv))
|
||
|
|
+ return PTR_ERR(plat_dat->bsp_priv);
|
||
|
|
+ }
|
||
|
|
+
|
||
|
|
/* Custom initialisation (if needed)*/
|
||
|
|
if (plat_dat->init) {
|
||
|
|
- ret = plat_dat->init(pdev);
|
||
|
|
+ ret = plat_dat->init(pdev, plat_dat->bsp_priv);
|
||
|
|
if (unlikely(ret))
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
@@ -203,7 +210,10 @@ static int stmmac_pltfr_remove(struct platform_device *pdev)
|
||
|
|
int ret = stmmac_dvr_remove(ndev);
|
||
|
|
|
||
|
|
if (priv->plat->exit)
|
||
|
|
- priv->plat->exit(pdev);
|
||
|
|
+ priv->plat->exit(pdev, priv->plat->bsp_priv);
|
||
|
|
+
|
||
|
|
+ if (priv->plat->free)
|
||
|
|
+ priv->plat->free(pdev, priv->plat->bsp_priv);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
@@ -218,7 +228,7 @@ static int stmmac_pltfr_suspend(struct device *dev)
|
||
|
|
|
||
|
|
ret = stmmac_suspend(ndev);
|
||
|
|
if (priv->plat->exit)
|
||
|
|
- priv->plat->exit(pdev);
|
||
|
|
+ priv->plat->exit(pdev, priv->plat->bsp_priv);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
@@ -230,7 +240,7 @@ static int stmmac_pltfr_resume(struct device *dev)
|
||
|
|
struct platform_device *pdev = to_platform_device(dev);
|
||
|
|
|
||
|
|
if (priv->plat->init)
|
||
|
|
- priv->plat->init(pdev);
|
||
|
|
+ priv->plat->init(pdev, priv->plat->bsp_priv);
|
||
|
|
|
||
|
|
return stmmac_resume(ndev);
|
||
|
|
}
|
||
|
|
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
|
||
|
|
index 33ace71..0a5a7ac 100644
|
||
|
|
--- a/include/linux/stmmac.h
|
||
|
|
+++ b/include/linux/stmmac.h
|
||
|
|
@@ -113,8 +113,10 @@ struct plat_stmmacenet_data {
|
||
|
|
int max_speed;
|
||
|
|
void (*fix_mac_speed)(void *priv, unsigned int speed);
|
||
|
|
void (*bus_setup)(void __iomem *ioaddr);
|
||
|
|
- int (*init)(struct platform_device *pdev);
|
||
|
|
- void (*exit)(struct platform_device *pdev);
|
||
|
|
+ void *(*setup)(struct platform_device *pdev);
|
||
|
|
+ void (*free)(struct platform_device *pdev, void *priv);
|
||
|
|
+ int (*init)(struct platform_device *pdev, void *priv);
|
||
|
|
+ void (*exit)(struct platform_device *pdev, void *priv);
|
||
|
|
void *custom_cfg;
|
||
|
|
void *custom_data;
|
||
|
|
void *bsp_priv;
|
||
|
|
--
|
||
|
|
1.8.5.5
|
||
|
|
|