The defines at the top of the GPIO driver use single-character names for parameters which are not very descriptive.
Improve these to use descriptive parameter names.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v4: None Changes in v3: None Changes in v2: None
drivers/gpio/s5p_gpio.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-)
diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c index aa60188..99f2dd8 100644 --- a/drivers/gpio/s5p_gpio.c +++ b/drivers/gpio/s5p_gpio.c @@ -11,19 +11,20 @@
#define S5P_GPIO_GET_PIN(x) (x % GPIO_PER_BANK)
-#define CON_MASK(x) (0xf << ((x) << 2)) -#define CON_SFR(x, v) ((v) << ((x) << 2)) +#define CON_MASK(val) (0xf << ((val) << 2)) +#define CON_SFR(gpio, cfg) ((cfg) << ((gpio) << 2)) +#define CON_SFR_UNSHIFT(val, gpio) ((val) >> ((gpio) << 2))
-#define DAT_MASK(x) (0x1 << (x)) -#define DAT_SET(x) (0x1 << (x)) +#define DAT_MASK(gpio) (0x1 << (gpio)) +#define DAT_SET(gpio) (0x1 << (gpio))
-#define PULL_MASK(x) (0x3 << ((x) << 1)) -#define PULL_MODE(x, v) ((v) << ((x) << 1)) +#define PULL_MASK(gpio) (0x3 << ((gpio) << 1)) +#define PULL_MODE(gpio, pull) ((pull) << ((gpio) << 1))
-#define DRV_MASK(x) (0x3 << ((x) << 1)) -#define DRV_SET(x, m) ((m) << ((x) << 1)) -#define RATE_MASK(x) (0x1 << (x + 16)) -#define RATE_SET(x) (0x1 << (x + 16)) +#define DRV_MASK(gpio) (0x3 << ((gpio) << 1)) +#define DRV_SET(gpio, mode) ((mode) << ((gpio) << 1)) +#define RATE_MASK(gpio) (0x1 << (gpio + 16)) +#define RATE_SET(gpio) (0x1 << (gpio + 16))
#define name_to_gpio(n) s5p_name_to_gpio(n) static inline int s5p_name_to_gpio(const char *name)