[U-Boot] [PATCH] dm: i2c-gpio: Remove redundant dm_gpio_set_value() call

Axel Lin axel.lin at ingics.com
Sun Apr 26 05:05:38 CEST 2015


dm_gpio_set_dir_flags() will also set gpio output value when switching to
gpio output. So it's not necessary to call dm_gpio_set_value() after
dm_gpio_set_dir_flags() call.

Signed-off-by: Axel Lin <axel.lin at ingics.com>
---
 drivers/i2c/i2c-gpio.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/i2c-gpio.c b/drivers/i2c/i2c-gpio.c
index ed899d4..a8b83c5 100644
--- a/drivers/i2c/i2c-gpio.c
+++ b/drivers/i2c/i2c-gpio.c
@@ -41,18 +41,19 @@ static int i2c_gpio_sda_get(struct gpio_desc *sda)
 
 static void i2c_gpio_sda_set(struct gpio_desc *sda, int bit)
 {
-	if (bit) {
+	if (bit)
 		dm_gpio_set_dir_flags(sda, GPIOD_IS_IN);
-	} else {
+	else
 		dm_gpio_set_dir_flags(sda, GPIOD_IS_OUT);
-		dm_gpio_set_value(sda, 0);
-	}
 }
 
 static void i2c_gpio_scl_set(struct gpio_desc *scl, int bit)
 {
-	dm_gpio_set_dir_flags(scl, GPIOD_IS_OUT);
-	dm_gpio_set_value(scl, bit);
+	ulong flags = GPIOD_IS_OUT;
+
+	if (bit)
+		flags |= GPIOD_IS_OUT_ACTIVE;
+	dm_gpio_set_dir_flags(scl, flags);
 }
 
 static void i2c_gpio_write_bit(struct gpio_desc *scl, struct gpio_desc *sda,
-- 
2.1.0





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