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pinctrl: sunxi: add clock support

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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>
This commit is contained in:
Emilio López
2013-03-22 11:20:40 -03:00
committed by Linus Walleij
parent 2afe822968
commit 950707c0eb
1 changed files with 8 additions and 0 deletions
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drivers/pinctrl/pinctrl-sunxi.c
+8
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@@ -11,6 +11,7 @@
*/ */
#include <linux/io.h> #include <linux/io.h>
#include <linux/clk.h>
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/of.h> #include <linux/of.h>
@@ -1917,6 +1918,7 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
struct pinctrl_pin_desc *pins; struct pinctrl_pin_desc *pins;
struct sunxi_pinctrl *pctl; struct sunxi_pinctrl *pctl;
int i, ret, last_pin; int i, ret, last_pin;
struct clk *clk;
pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
if (!pctl) if (!pctl)
@@ -1987,6 +1989,12 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
goto gpiochip_error; 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"); dev_info(&pdev->dev, "initialized sunXi PIO driver\n");
return 0; return 0;