Commit 18c58153 authored by yangcong's avatar yangcong Committed by Douglas Anderson
Browse files

drm/panel: boe-tv101wum-nl6: Support enabling a 3.3V rail 



The auo,b101uan08.3 panel (already supported by this driver) has
a 3.3V rail that needs to be turned on. For previous users of
this panel this voltage was directly output by pmic. On a new
user (the not-yet-upstream sc7180-trogdor-mrbland board) we need
to turn the 3.3V rail on. Add support in the driver for this.

Signed-off-by: default avataryangcong <yangcong5@huaqin.corp-partner.google.com>
Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210914032252.3770756-2-yangcong5@huaqin.corp-partner.google.com
parent c43da06c

drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c

+11 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ struct boe_panel { 
	const struct panel_desc *desc;



	enum drm_panel_orientation orientation;

	struct regulator *pp3300;

	struct regulator *pp1800;

	struct regulator *avee;

	struct regulator *avdd;
@@ -511,6 +512,7 @@ static int boe_panel_unprepare(struct drm_panel *panel) 
		gpiod_set_value(boe->enable_gpio, 0);

		usleep_range(5000, 7000);

		regulator_disable(boe->pp1800);

		regulator_disable(boe->pp3300);

	} else {

		gpiod_set_value(boe->enable_gpio, 0);

		usleep_range(500, 1000);
@@ -518,6 +520,7 @@ static int boe_panel_unprepare(struct drm_panel *panel) 
		regulator_disable(boe->avdd);

		usleep_range(5000, 7000);

		regulator_disable(boe->pp1800);

		regulator_disable(boe->pp3300);

	}



	boe->prepared = false;
@@ -536,6 +539,10 @@ static int boe_panel_prepare(struct drm_panel *panel) 
	gpiod_set_value(boe->enable_gpio, 0);

	usleep_range(1000, 1500);



	ret = regulator_enable(boe->pp3300);

	if (ret < 0)

		return ret;



	ret = regulator_enable(boe->pp1800);

	if (ret < 0)

		return ret;
@@ -767,6 +774,10 @@ static int boe_panel_add(struct boe_panel *boe) 
	if (IS_ERR(boe->avee))

		return PTR_ERR(boe->avee);



	boe->pp3300 = devm_regulator_get(dev, "pp3300");

	if (IS_ERR(boe->pp3300))

		return PTR_ERR(boe->pp3300);



	boe->pp1800 = devm_regulator_get(dev, "pp1800");

	if (IS_ERR(boe->pp1800))

		return PTR_ERR(boe->pp1800);