Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-15 00:21:59 +00:00
Code Issues Packages Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Jyri Sarha 2017-02-08 16:43:59 +01:00 committed by Bartlomiej Zolnierkiewicz
parent b49898ce60
commit 72db33355c
1 changed files with 8 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
drivers/video/fbdev/ssd1307fb.c
View File

@ -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);