[PATCH 4/5] leds: leds-gpio: adopt pinctrl support

[AnilKumar Ch]

Adopt pinctrl support to leds-gpio driver, based on the device
pointer (leds-gpio) pinctrl driver configure SoC pins to GPIO
mode.

Signed-off-by: AnilKumar Ch <anilku...@ti.com>
---
 drivers/leds/leds-gpio.c |   31 ++++++++++++++++++++++++-------
 1 file changed, 24 insertions(+), 7 deletions(-)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index c032b21..d98dfb9 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -20,6 +20,7 @@
 #include <linux/slab.h>
 #include <linux/workqueue.h>
 #include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
 
 struct gpio_led_data {
        struct led_classdev cdev;
@@ -236,14 +237,23 @@ static int __devinit gpio_led_probe(struct 
platform_device *pdev)
 {
        struct gpio_led_platform_data *pdata = pdev->dev.platform_data;
        struct gpio_leds_priv *priv;
-       int i, ret = 0;
+       struct pinctrl *pinctrl;
+       int i = 0;
+       int ret = 0;
+
+       pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+       if (IS_ERR(pinctrl)) {
+               return PTR_ERR(pinctrl);
+       }
 
        if (pdata && pdata->num_leds) {
                priv = devm_kzalloc(&pdev->dev,
                                sizeof_gpio_leds_priv(pdata->num_leds),
                                        GFP_KERNEL);
-               if (!priv)
-                       return -ENOMEM;
+               if (!priv) {
+                       ret = -ENOMEM;
+                       goto err_pctrl_put;
+               }
 
                priv->num_leds = pdata->num_leds;
                for (i = 0; i < priv->num_leds; i++) {
@@ -254,18 +264,25 @@ static int __devinit gpio_led_probe(struct 
platform_device *pdev)
                                /* On failure: unwind the led creations */
                                for (i = i - 1; i >= 0; i--)
                                        delete_gpio_led(&priv->leds[i]);
-                               return ret;
+                               goto err_pctrl_put;
                        }
                }
        } else {
                priv = gpio_leds_create_of(pdev);
-               if (!priv)
-                       return -ENODEV;
+               if (!priv) {
+                       ret = -ENODEV;
+                       goto err_del_gpio_led;
+               }
        }
 
        platform_set_drvdata(pdev, priv);
 
-       return 0;
+err_pctrl_put:
+       pinctrl_put(pinctrl);
+err_del_gpio_led:
+       while (--i >= 0)
+               delete_gpio_led(&priv->leds[i]);
+       return ret;
 }
 
 static int __devexit gpio_led_remove(struct platform_device *pdev)
-- 
1.7.9.5

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