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: Sangwook Lee <sangwook.lee@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 256c5dd..128677d 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -101,6 +101,14 @@
if (!rfkill)
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;
len = strlen(pdata->name);
@@ -182,7 +190,10 @@
static int rfkill_gpio_remove(struct platform_device *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_destroy(rfkill->rfkill_dev);
if (gpio_is_valid(rfkill->pdata->shutdown_gpio))