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authorBen Dooks <ben-linux@fluff.org>2008-10-31 16:14:27 +0000
committerBen Dooks <ben-linux@fluff.org>2008-12-15 21:46:24 +0000
commitf2edc7565a14aa82231c847abf33d02314cac9f9 (patch)
tree1baab69b530dc6da39ccb55a02017a14479e9bea /arch/arm/plat-s3c24xx/gpiolib.c
parentcec444b79073e7d6ef35ced5ef63c3fd83d9b9a7 (diff)
[ARM] S3C24XX: Reduce code lineage of gpiolib.c
All the s3c24xx gpiolib chips share the same get/set calls and all but one bank shares the same calls for .direction_input and .direction_output methods. Change the initialisation process to use an new call to register the chips that fills in any blank calls with the default values to avoid having to fill them in the structure initialisers. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s3c24xx/gpiolib.c')
-rw-r--r--arch/arm/plat-s3c24xx/gpiolib.c49
1 files changed, 22 insertions, 27 deletions
diff --git a/arch/arm/plat-s3c24xx/gpiolib.c b/arch/arm/plat-s3c24xx/gpiolib.c
index 3caec6bad3e..b07c2d0dd53 100644
--- a/arch/arm/plat-s3c24xx/gpiolib.c
+++ b/arch/arm/plat-s3c24xx/gpiolib.c
@@ -161,8 +161,6 @@ static struct s3c24xx_gpio_chip gpios[] = {
.ngpio = 24,
.direction_input = s3c24xx_gpiolib_banka_input,
.direction_output = s3c24xx_gpiolib_banka_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
[1] = {
@@ -172,10 +170,6 @@ static struct s3c24xx_gpio_chip gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOB",
.ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
[2] = {
@@ -185,10 +179,6 @@ static struct s3c24xx_gpio_chip gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOC",
.ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
[3] = {
@@ -198,10 +188,6 @@ static struct s3c24xx_gpio_chip gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOD",
.ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
[4] = {
@@ -211,10 +197,6 @@ static struct s3c24xx_gpio_chip gpios[] = {
.label = "GPIOE",
.owner = THIS_MODULE,
.ngpio = 16,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
[5] = {
@@ -224,10 +206,6 @@ static struct s3c24xx_gpio_chip gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOF",
.ngpio = 8,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
[6] = {
@@ -237,21 +215,38 @@ static struct s3c24xx_gpio_chip gpios[] = {
.owner = THIS_MODULE,
.label = "GPIOG",
.ngpio = 10,
- .direction_input = s3c24xx_gpiolib_input,
- .direction_output = s3c24xx_gpiolib_output,
- .set = s3c24xx_gpiolib_set,
- .get = s3c24xx_gpiolib_get,
},
},
};
+static __init void s3c24xx_gpiolib_add(struct s3c24xx_gpio_chip *chip)
+{
+ struct gpio_chip *gc = &chip->chip;
+
+ BUG_ON(!chip->base);
+ BUG_ON(!gc->label);
+ BUG_ON(!gc->ngpio);
+
+ if (!gc->direction_input)
+ gc->direction_input = s3c24xx_gpiolib_input;
+ if (!gc->direction_output)
+ gc->direction_output = s3c24xx_gpiolib_output;
+ if (!gc->set)
+ gc->set = s3c24xx_gpiolib_set;
+ if (!gc->get)
+ gc->get = s3c24xx_gpiolib_get;
+
+ /* gpiochip_add() prints own failure message on error. */
+ gpiochip_add(gc);
+}
+
static __init int s3c24xx_gpiolib_init(void)
{
struct s3c24xx_gpio_chip *chip = gpios;
int gpn;
for (gpn = 0; gpn < ARRAY_SIZE(gpios); gpn++, chip++)
- gpiochip_add(&chip->chip);
+ s3c24xx_gpiolib_add(chip);
return 0;
}