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authorEmilio López <emilio@elopez.com.ar>2013-03-22 11:20:40 -0300
committerLinus Walleij <linus.walleij@linaro.org>2013-04-03 13:58:38 +0200
commit950707c0eb5c7aeaa2c446a04c824f4be686d2f6 (patch)
treeaac6e165bda3c15647e3e215e5adb67d5d863e10 /drivers/pinctrl/pinctrl-sunxi.c
parent2afe8229687ec24cbc07e78449a588bb8b68f858 (diff)
pinctrl: sunxi: add clock support
For the port controller to work, we need to enable the apb0_pio gate. This commit adds the ability to enable one clock specified on the device tree to the pinctrl driver. Signed-off-by: Emilio López <emilio@elopez.com.ar> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-sunxi.c')
-rw-r--r--drivers/pinctrl/pinctrl-sunxi.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c
index cb491d6ba601..617d351a0a44 100644
--- a/drivers/pinctrl/pinctrl-sunxi.c
+++ b/drivers/pinctrl/pinctrl-sunxi.c
@@ -11,6 +11,7 @@
*/
#include <linux/io.h>
+#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of.h>
@@ -1917,6 +1918,7 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
struct pinctrl_pin_desc *pins;
struct sunxi_pinctrl *pctl;
int i, ret, last_pin;
+ struct clk *clk;
pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
if (!pctl)
@@ -1987,6 +1989,12 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
goto gpiochip_error;
}
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk))
+ goto gpiochip_error;
+
+ clk_prepare_enable(clk);
+
dev_info(&pdev->dev, "initialized sunXi PIO driver\n");
return 0;