mmc: simplify mmc_cd_gpio_request() by removing two parameters

Calculate the IRQ number, using gpio_to_irq() and use fixed flags: trigger
on both edges. This makes two out of four arguments of the
mmc_cd_gpio_request() function redundant.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 9 insertions, 4 deletions

diff --git a/drivers/mmc/core/cd-gpio.c b/drivers/mmc/core/cd-gpio.c
index 082202ae4a03..29de31e260dd 100644
--- a/drivers/mmc/core/cd-gpio.c
+++ b/drivers/mmc/core/cd-gpio.c
@@ -28,13 +28,17 @@ static irqreturn_t mmc_cd_gpio_irqt(int irq, void *dev_id)
         return IRQ_HANDLED;
 }
 
-int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
-                        unsigned int irq, unsigned long flags)
+int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio)
 {
         size_t len = strlen(dev_name(host->parent)) + 4;
-        struct mmc_cd_gpio *cd = kmalloc(sizeof(*cd) + len, GFP_KERNEL);
+        struct mmc_cd_gpio *cd;
+        int irq = gpio_to_irq(gpio);
         int ret;
 
+        if (irq < 0)
+                return irq;
+
+        cd = kmalloc(sizeof(*cd) + len, GFP_KERNEL);
         if (!cd)
                 return -ENOMEM;
 
@@ -45,7 +49,8 @@ int mmc_cd_gpio_request(struct mmc_host *host, unsigned int gpio,
                 goto egpioreq;
 
         ret = request_threaded_irq(irq, NULL, mmc_cd_gpio_irqt,
-                                   flags, cd->label, host);
+                                   IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+                                   cd->label, host);
         if (ret < 0)
                 goto eirqreq;