pwm: pwm-tiehrpwm: pinctrl support

Enable pinctrl for pwm-tiehrpwm if pinctrl driver available, else
bail out with warning message.

Signed-off-by: Philip, Avinash <avinashphilip@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index ee7a8b3dbed9..542d5f38ccf6 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -26,6 +26,7 @@
 #include <linux/clk.h>
 #include <linux/pm_runtime.h>
 #include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
 
 #include "pwm-tipwmss.h"
 
@@ -415,6 +416,11 @@ static int __devinit ehrpwm_pwm_probe(struct platform_device *pdev)
         struct clk *clk;
         struct ehrpwm_pwm_chip *pc;
         u16 status;
+        struct pinctrl *pinctrl;
+
+        pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+        if (IS_ERR(pinctrl))
+                dev_warn(&pdev->dev, "unable to select pin group\n");
 
         pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
         if (!pc) {