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| author | Emilio López <emilio@elopez.com.ar> | 2013-03-22 18:20:40 +0400 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2013-04-03 15:58:38 +0400 |
| commit | 950707c0eb5c7aeaa2c446a04c824f4be686d2f6 (patch) | |
| tree | aac6e165bda3c15647e3e215e5adb67d5d863e10 /drivers/pinctrl/pinctrl-sunxi.c | |
| parent | 2afe8229687ec24cbc07e78449a588bb8b68f858 (diff) | |
| download | linux-950707c0eb5c7aeaa2c446a04c824f4be686d2f6.tar.xz | |
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.c | 8 |
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; |