pwm: pwm-mxs: add pinctrl support

Call pinctrl subsystem to set up pwm pin.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 3b7f3ab116e3..269d7c2a87d6 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/slab.h>
@@ -130,6 +131,7 @@ static int mxs_pwm_probe(struct platform_device *pdev)
         struct device_node *np = pdev->dev.of_node;
         struct mxs_pwm_chip *mxs;
         struct resource *res;
+        struct pinctrl *pinctrl;
         int ret;
 
         mxs = devm_kzalloc(&pdev->dev, sizeof(*mxs), GFP_KERNEL);
@@ -141,6 +143,10 @@ static int mxs_pwm_probe(struct platform_device *pdev)
         if (!mxs->base)
                 return -EADDRNOTAVAIL;
 
+        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+        if (IS_ERR(pinctrl))
+                return PTR_ERR(pinctrl);
+
         mxs->clk = devm_clk_get(&pdev->dev, NULL);
         if (IS_ERR(mxs->clk))
                 return PTR_ERR(mxs->clk);