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

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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: yangcong <yangcong5@huaqin.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210914032252.3770756-2-yangcong5@huaqin.corp-partner.google.com
This commit is contained in:
yangcong
2021-09-14 11:22:49 +08:00
committed by Douglas Anderson
parent c43da06c24
commit 18c58153b8
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
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@ -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);