[U-Boot] [PATCH RESEND] gpio: spear_gpio: Fix gpio_set_value() implementation

[Axel Lin <axel.lin@ingics.com>]

In current gpio_set_value() implementation, it always sets the gpio control bit
no matter the value argument is 0 or 1. Thus the GPIOs never set to low.
This patch fixes this bug.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stefan Roese <sr@denx.de>
Reviewed-by: Vipin Kumar <vipin.kumar@st.com>
---
This patch was sent on http://lists.denx.de/pipermail/u-boot/2013-June/156861.html

Has Stefan's Ack:
http://lists.denx.de/pipermail/u-boot/2013-June/156864.html

Vipin says the code is fine, so I add Vipin's review-by.
http://lists.denx.de/pipermail/u-boot/2013-June/156966.html

Michael confirms it works:
http://lists.denx.de/pipermail/u-boot/2013-August/160652.html

No body picks up this patch, so here is a resend.
Although I think this is a bug fix, but I'll let maintainers to determinate
if this is the material for v2013.10.
Anyway, can someone at least let me know if this patch is ok for apply at some
point? I have no idea who is maintaining this file.

Regards,
Axel

 drivers/gpio/spear_gpio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/spear_gpio.c b/drivers/gpio/spear_gpio.c
index 367b670..6fb4117 100644
--- a/drivers/gpio/spear_gpio.c
+++ b/drivers/gpio/spear_gpio.c
@@ -36,7 +36,10 @@ int gpio_set_value(unsigned gpio, int value)
 {
 	struct gpio_regs *regs = (struct gpio_regs *)CONFIG_GPIO_BASE;
 
-	writel(1 << gpio, &regs->gpiodata[DATA_REG_ADDR(gpio)]);
+	if (value)
+		writel(1 << gpio, &regs->gpiodata[DATA_REG_ADDR(gpio)]);
+	else
+		writel(0, &regs->gpiodata[DATA_REG_ADDR(gpio)]);
 
 	return 0;
 }
-- 
1.8.1.2