Messages in this thread | | | Date | Tue, 10 Jan 2023 10:22:44 +0100 | Subject | Re: [PATCH v2 3/3] drm/panel: boe-tv101wum-nl6: Fine tune the panel power sequence | From | AngeloGioacchino Del Regno <> |
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Il 10/01/23 06:54, xinlei.lee@mediatek.com ha scritto: > From: Xinlei Lee <xinlei.lee@mediatek.com> > > For "boe,tv105wum-nw0" this special panel, it is stipulated in the > panel spec that MIPI needs to keep the LP11 state before the > lcm_reset pin is pulled high. > > Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com> > --- > drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c > index f0093035f1ff..67df61de64ae 100644 > --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c > +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c > @@ -36,6 +36,7 @@ struct panel_desc { > const struct panel_init_cmd *init_cmds; > unsigned int lanes; > bool discharge_on_disable; > + bool lp11_before_reset; > }; > > struct boe_panel { > @@ -1261,6 +1262,10 @@ static int boe_panel_prepare(struct drm_panel *panel) > > usleep_range(10000, 11000); > > + if (boe->desc->lp11_before_reset) { > + mipi_dsi_dcs_nop(boe->dsi);
NOP will never reach the driveric if it is in reset, which should apparently be the state of it at that point in code.
I guess that you wanted to do that after LCM reset and before sending init cmds.
Regards, Angelo
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