Messages in this thread | | | Date | Fri, 4 Mar 2022 12:24:50 +0100 | Subject | Re: [PATCH v2, 0/4] Cooperate with DSI RX devices to modify dsi funcs and delay mipi high to cooperate with panel sequence | From | Benjamin Gaignard <> |
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Le 04/03/2022 à 11:15, xinlei.lee@mediatek.com a écrit : > From: Xinlei Lee <xinlei.lee@mediatek.com> > > In upstream-v5.8, dsi_enable will operate panel_enable, but this > modification has been moved in v5.9. In order to ensure the timing of > dsi_power_on/off and the timing of pulling up/down the MIPI signal, > the modification of v5.9 is synchronized in this series of patches.
Hello,
I'm trying to debug an issue on mt8183 kukui krane sku176 device. The problem is that boe-tv101wum-nl6 panel isn't working. At boot time I can see these logs: panel-boe-tv101wum-nl6 14014000.dsi.0: failed to write command 1 panel-boe-tv101wum-nl6 14014000.dsi.0: failed to init panel: -62 and a DSI interrupt time out.
Since I believe the problem is link to DSI/panel enabling sequence I have try this series but that doesn't solve the issue. I notice that when going out of deep sleep mode panel is functional.
May you have any idea to debug/solve this problem ?
Regards, Benjamin
> > Changes since v1: > 1. Dsi sequence marked with patch adjustment > 2. Fixes: mtk_dsi: Use the drm_panel_bridge > > Jitao Shi (3): > drm/mediatek: Adjust the timing of mipi signal from LP00 to LP11 > drm/mediatek: Separate poweron/poweroff from enable/disable and define > new funcs > drm/mediatek: keep dsi as LP00 before dcs cmds transfer > > Xinlei Lee (1): > drm/mediatek: Add pull-down MIPI operation in mtk_dsi_poweroff > function > > drivers/gpu/drm/mediatek/mtk_dsi.c | 73 ++++++++++++++++++++---------- > 1 file changed, 49 insertions(+), 24 deletions(-) >
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