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>
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@ -11,6 +11,7 @@
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*/
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#include <linux/io.h>
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#include <linux/clk.h>
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#include <linux/gpio.h>
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#include <linux/module.h>
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#include <linux/of.h>
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@ -1917,6 +1918,7 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
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struct pinctrl_pin_desc *pins;
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struct sunxi_pinctrl *pctl;
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int i, ret, last_pin;
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struct clk *clk;
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pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
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if (!pctl)
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@ -1987,6 +1989,12 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
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goto gpiochip_error;
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}
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clk = devm_clk_get(&pdev->dev, NULL);
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if (IS_ERR(clk))
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goto gpiochip_error;
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clk_prepare_enable(clk);
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dev_info(&pdev->dev, "initialized sunXi PIO driver\n");
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return 0;
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