[U-Boot] [PATCH v9 10/12] dm: exynos: Tidy up GPIO defines
Simon Glass
sjg at chromium.org
Wed Oct 15 10:38:00 CEST 2014
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 at chromium.org>
---
Changes in v9: None
Changes in v8: None
Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: 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)
--
2.1.0.rc2.206.gedb03e5
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