Hi, On Wed, Jul 01, 2020 at 12:31:24PM +0200, Ondrej Jirman wrote: > The reset pin is inverted, so if we don't assert reset, the actual gpio > will be high and may keep driving the IO port of the panel.
Reviewed-by: Guido Günther <[email protected]> > > Signed-off-by: Ondrej Jirman <[email protected]> > Reviewed-by: Linus Walleij <[email protected]> > --- > drivers/gpu/drm/panel/panel-sitronix-st7703.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c > b/drivers/gpu/drm/panel/panel-sitronix-st7703.c > index 0c4167994d01..e303b7b1a215 100644 > --- a/drivers/gpu/drm/panel/panel-sitronix-st7703.c > +++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c > @@ -417,6 +417,7 @@ static int st7703_unprepare(struct drm_panel *panel) > if (!ctx->prepared) > return 0; > > + gpiod_set_value_cansleep(ctx->reset_gpio, 1); > regulator_disable(ctx->iovcc); > regulator_disable(ctx->vcc); > ctx->prepared = false; > -- > 2.27.0 >
