fbdev: ssd1307fb: Start to use gpiod API for reset gpio

Start to use gpiod API for reset gpio.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Benoît Cousson <bcousson@baylibre.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 2925d5c..8ffaaee 100644 (file)
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -73,7 +73,7 @@ struct ssd1307fb_par {
        u32 prechargep2;
        struct pwm_device *pwm;
        u32 pwm_period;
-       int reset;
+       struct gpio_desc *reset;
        u32 seg_remap;
        u32 vcomh;
        u32 width;
@@ -561,10 +561,11 @@ static int ssd1307fb_probe(struct i2c_client *client,
 
        par->device_info = of_device_get_match_data(&client->dev);
 
-       par->reset = of_get_named_gpio(client->dev.of_node,
-                                        "reset-gpios", 0);
-       if (!gpio_is_valid(par->reset)) {
-               ret = -EINVAL;
+       par->reset = devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_LOW);
+       if (IS_ERR(par->reset)) {
+               dev_err(&client->dev, "failed to get reset gpio: %ld\n",
+                       PTR_ERR(par->reset));
+               ret = PTR_ERR(par->reset);
                goto fb_alloc_error;
        }
 
@@ -642,22 +643,12 @@ static int ssd1307fb_probe(struct i2c_client *client,
 
        fb_deferred_io_init(info);
 
-       ret = devm_gpio_request_one(&client->dev, par->reset,
-                                   GPIOF_OUT_INIT_HIGH,
-                                   "oled-reset");
-       if (ret) {
-               dev_err(&client->dev,
-                       "failed to request gpio %d: %d\n",
-                       par->reset, ret);
-               goto reset_oled_error;
-       }
-
        i2c_set_clientdata(client, info);
 
        /* Reset the screen */
-       gpio_set_value(par->reset, 0);
+       gpiod_set_value(par->reset, 0);
        udelay(4);
-       gpio_set_value(par->reset, 1);
+       gpiod_set_value(par->reset, 1);
        udelay(4);
 
        ret = ssd1307fb_init(par);