Commit e209c5a7 authored by Sangwook Lee's avatar Sangwook Lee Committed by John W. Linville

net:rfkill: add a gpio setup function into GPIO rfkill

Add a gpio setup function which gives a chance to set up
platform specific configuration such as pin multiplexing,
input/output direction at the runtime or booting time.
Signed-off-by: default avatarSangwook Lee <sangwook.lee@linaro.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 893d73f4
...@@ -30,6 +30,8 @@ ...@@ -30,6 +30,8 @@
* @reset_gpio: GPIO which is used for reseting rfkill switch * @reset_gpio: GPIO which is used for reseting rfkill switch
* @shutdown_gpio: GPIO which is used for shutdown of rfkill switch * @shutdown_gpio: GPIO which is used for shutdown of rfkill switch
* @power_clk_name: [optional] name of clk to turn off while blocked * @power_clk_name: [optional] name of clk to turn off while blocked
* @gpio_runtime_close: clean up platform specific gpio configuration
* @gpio_runtime_setup: set up platform specific gpio configuration
*/ */
struct rfkill_gpio_platform_data { struct rfkill_gpio_platform_data {
...@@ -38,6 +40,8 @@ struct rfkill_gpio_platform_data { ...@@ -38,6 +40,8 @@ struct rfkill_gpio_platform_data {
int shutdown_gpio; int shutdown_gpio;
const char *power_clk_name; const char *power_clk_name;
enum rfkill_type type; enum rfkill_type type;
void (*gpio_runtime_close)(struct platform_device *);
int (*gpio_runtime_setup)(struct platform_device *);
}; };
#endif /* __RFKILL_GPIO_H */ #endif /* __RFKILL_GPIO_H */
...@@ -101,6 +101,14 @@ static int rfkill_gpio_probe(struct platform_device *pdev) ...@@ -101,6 +101,14 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
if (!rfkill) if (!rfkill)
return -ENOMEM; return -ENOMEM;
if (pdata->gpio_runtime_setup) {
ret = pdata->gpio_runtime_setup(pdev);
if (ret) {
pr_warn("%s: can't set up gpio\n", __func__);
return ret;
}
}
rfkill->pdata = pdata; rfkill->pdata = pdata;
len = strlen(pdata->name); len = strlen(pdata->name);
...@@ -182,7 +190,10 @@ static int rfkill_gpio_probe(struct platform_device *pdev) ...@@ -182,7 +190,10 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
static int rfkill_gpio_remove(struct platform_device *pdev) static int rfkill_gpio_remove(struct platform_device *pdev)
{ {
struct rfkill_gpio_data *rfkill = platform_get_drvdata(pdev); struct rfkill_gpio_data *rfkill = platform_get_drvdata(pdev);
struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data;
if (pdata->gpio_runtime_close)
pdata->gpio_runtime_close(pdev);
rfkill_unregister(rfkill->rfkill_dev); rfkill_unregister(rfkill->rfkill_dev);
rfkill_destroy(rfkill->rfkill_dev); rfkill_destroy(rfkill->rfkill_dev);
if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
......
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