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mmc: simplify mmc_cd_gpio_request() by removing two parameters

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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>
This commit is contained in:
Guennadi Liakhovetski 2012-02-09 22:57:07 +01:00 committed by Chris Ball
parent 296e0b0357
commit c9b0546a59
2 changed files with 10 additions and 6 deletions
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13
drivers/mmc/core/cd-gpio.c
View File

@ -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;

3
include/linux/mmc/cd-gpio.h
View File

@ -12,8 +12,7 @@
#define MMC_CD_GPIO_H
struct mmc_host;
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);
void mmc_cd_gpio_free(struct mmc_host *host);
#endif