pwm: pwm-tiecap: pinctrl support

Enable pinctrl for pwm-tiecap 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>

diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 0f541c5..b4f9d47 100644 (file)
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -26,6 +26,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/pwm.h>
 #include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
 
 #include "pwm-tipwmss.h"
 
@@ -200,6 +201,11 @@ static int __devinit ecap_pwm_probe(struct platform_device *pdev)
        struct clk *clk;
        struct ecap_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) {