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Commit 9827f263 authored by Michal Vokáč's avatar Michal Vokáč Committed by Bartlomiej Zolnierkiewicz
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video: ssd1307fb: Do not hard code active-low reset sequence 



The SSD130x OLED display reset signal is active low. Now the reset
sequence is implemented in such a way that users are forced to
define reset-gpios as GPIO_ACTIVE_HIGH in DT to make the reset work.

Do not hard code the active-low sequence into the driver but instead
allow the user to specify the gpio as GPIO_ACTIVE_LOW to reflect
the real world.

Signed-off-by: default avatarMichal Vokáč <michal.vokac@ysoft.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
parent 7d1b8d7a

drivers/video/fbdev/ssd1307fb.c

+2 −2
Original line number Diff line number Diff line
@@ -667,10 +667,10 @@ static int ssd1307fb_probe(struct i2c_client *client, 


	if (par->reset) {

		/* Reset the screen */

		gpiod_set_value_cansleep(par->reset, 0);

		udelay(4);

		gpiod_set_value_cansleep(par->reset, 1);

		udelay(4);

		gpiod_set_value_cansleep(par->reset, 0);

		udelay(4);

	}



	if (par->vbat_reg) {