| Message ID | 20231117194405.1386265-3-macroalpha82@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Elida KD35T133 Panel Improvements | expand |
On 11/17/2023 11:44 AM, Chris Morgan wrote: > From: Chris Morgan <macromorgan@hotmail.com> > > For devices like the Anbernic RG351M and RG351P the panel is wired to > an always on regulator. When the device suspends and wakes up, there > are some slight artifacts on the screen that go away over time. If > instead we hold the panel in reset status after it is unprepared, > this does not happen. > > Fixes: 5b6603360c12 ("drm/panel: add panel driver for Elida KD35T133 panels") > Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com> > --- > drivers/gpu/drm/panel/panel-elida-kd35t133.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/gpu/drm/panel/panel-elida-kd35t133.c b/drivers/gpu/drm/panel/panel-elida-kd35t133.c > index 6cd8536c09ff..f1fc4a26f447 100644 > --- a/drivers/gpu/drm/panel/panel-elida-kd35t133.c > +++ b/drivers/gpu/drm/panel/panel-elida-kd35t133.c > @@ -104,6 +104,8 @@ static int kd35t133_unprepare(struct drm_panel *panel) > return ret; > } > > + gpiod_set_value_cansleep(ctx->reset_gpio, 1); > + > regulator_disable(ctx->iovcc); > regulator_disable(ctx->vdd); > > -- > 2.34.1 >
diff --git a/drivers/gpu/drm/panel/panel-elida-kd35t133.c b/drivers/gpu/drm/panel/panel-elida-kd35t133.c index 6cd8536c09ff..f1fc4a26f447 100644 --- a/drivers/gpu/drm/panel/panel-elida-kd35t133.c +++ b/drivers/gpu/drm/panel/panel-elida-kd35t133.c @@ -104,6 +104,8 @@ static int kd35t133_unprepare(struct drm_panel *panel) return ret; } + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + regulator_disable(ctx->iovcc); regulator_disable(ctx->vdd);