kernel.git/drivers/gpu/drm/panel, branch linux-5.12.y

drm/panel-simple: Undo enable if HPD never asserts

2021-05-14T08:52:35Z

[ Upstream commit 5e7222a3674ea7422370779884dd53aabe9e4a9d ] If the HPD signal never asserts in panel_simple_prepare() and we return an error, we should unset the enable GPIO and disable the regulator to make it consistent for the caller. At the moment I have some hardware where HPD sometimes doesn't assert. Obviously that needs to be debugged, but this patch makes it so that if I add a retry that I can make things work. Fixes: 48834e6084f1 ("drm/panel-simple: Support hpd-gpios for delaying prepare()") Signed-off-by: Douglas Anderson Reviewed-by: Stephen Boyd Reviewed-by: Linus Walleij Signed-off-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/20210115144345.v2.1.I33fcbd64ab409cfe4f9491bf449f51925a4d3281@changeid Signed-off-by: Sasha Levin

drm/mcde/panel: Inverse misunderstood flag

2021-05-14T08:52:34Z

[ Upstream commit d0c5ac04e7feedbc069f26f4dcbf35b521ae7fc5 ] A recent patch renaming MIPI_DSI_MODE_EOT_PACKET to MIPI_DSI_MODE_NO_EOT_PACKET brought to light the misunderstanding in the current MCDE driver and all its associated panel drivers that MIPI_DSI_MODE_EOT_PACKET would mean "use EOT packet" when in fact it means the reverse. Fix it up by implementing the flag right in the MCDE DSI driver and remove the flag from panels that actually want the EOT packet. Suggested-by: Nicolas Boichat Signed-off-by: Linus Walleij Reviewed-by: Nicolas Boichat Fixes: 5fc537bfd000 ("drm/mcde: Add new driver for ST-Ericsson MCDE") Fixes: 899f24ed8d3a ("drm/panel: Add driver for Novatek NT35510-based panels") Fixes: ac1d6d74884e ("drm/panel: Add driver for Samsung S6D16D0 panel") Fixes: 435e06c06cb2 ("drm/panel: s6e63m0: Add DSI transport") Fixes: 8152c2bfd780 ("drm/panel: Add driver for Sony ACX424AKP panel") Link: https://patchwork.freedesktop.org/patch/msgid/20210304004138.1785057-1-linus.walleij@linaro.org Signed-off-by: Sasha Levin

drm/panel: panel-dsi-cm: disable TE for now

2021-04-06T13:51:29Z

Disable TE for Droid 4 panel, since implementation is currently broken. Also disable it for N950 panel, which is untested. Reported-by: Tony Lindgren Reported-by: Tomi Valkeinen Fixes: 4c1b935fea54 ("drm/omap: dsi: move TE GPIO handling into core") Signed-off-by: Sebastian Reichel Tested-by: Tony Lindgren Acked-by: Thierry Reding Signed-off-by: Tomi Valkeinen Link: https://patchwork.freedesktop.org/patch/msgid/20210227214542.99961-1-sebastian.reichel@collabora.com

drm/panel: kd35t133: allow using non-continuous dsi clock

2021-02-25T09:18:45Z

The panel is able to work when dsi clock is non-continuous, thus the system power consumption can be reduced using such feature. Add MIPI_DSI_CLOCK_NON_CONTINUOUS to panel's mode_flags. Also the flag actually becomes necessary after commit c6d94e37bdbb ("drm/bridge/synopsys: dsi: add support for non-continuous HS clock") and without it the panel only emits stripes instead of output. Fixes: c6d94e37bdbb ("drm/bridge/synopsys: dsi: add support for non-continuous HS clock") Cc: stable@vger.kernel.org # 5.10+ Signed-off-by: Heiko Stuebner Tested-by: Ezequiel Garcia Reviewed-by: Christopher Morgan Link: https://patchwork.freedesktop.org/patch/msgid/20210206135020.1991820-1-heiko@sntech.de Signed-off-by: Maarten Lankhorst

drm/panel: panel-simple: add bus-format and connector-type to Innolux n116bge

2021-01-18T12:12:20Z

The Innolux n116bge panel has an eDP connector and 3*6 bits bus format. Signed-off-by: Heiko Stuebner Reviewed-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20210109130951.3448435-1-heiko@sntech.de

drm/panel: s6e63m0: Support max-brightness

2020-12-30T10:26:08Z

The "max-brightness" is a standard backlight property that we need to support for the Samsung GT-I8190 Golden because the display will go black if we crank up the brightness too high. As the platform needs this ability to give picture this is a regression fix along with the addition of the property to the GT-I8190 device tree. Cc: Stephan Gerhold Fixes: 9c3f0a0dd6a1 ("drm/panel: s6e63m0: Implement 28 backlight levels") Signed-off-by: Linus Walleij Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201214222210.238081-1-linus.walleij@linaro.org

drm/panel: panel-dsi-cm: drop unneeded includes

2020-12-15T14:17:31Z

Drop unneeded includes. Signed-off-by: Tomi Valkeinen Reviewed-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Reviewed-by: Sebastian Reichel Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-74-tomi.valkeinen@ti.com

drm/panel: panel-dsi-cm: add panel database to driver

2020-12-15T14:17:31Z

Add a panel database to the driver instead of reading propertes from DT data. This is similar to panel-simple, and I believe it's more future safe way to handle the panels. Signed-off-by: Tomi Valkeinen Reviewed-by: Sam Ravnborg Reviewed-by: Sebastian Reichel Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-73-tomi.valkeinen@ti.com

drm/panel: panel-dsi-cm: remove extra 'if'

2020-12-15T14:17:31Z

We have a useless 'if' in the dsicm_bl_update_status(), a left over from the conversion to DRM model. Drop the if. Signed-off-by: Tomi Valkeinen Reviewed-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Reviewed-by: Sebastian Reichel Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-72-tomi.valkeinen@ti.com

drm/panel: panel-dsi-cm: set column & page at setup

2020-12-15T14:17:30Z

Set the column & page address once during setup, instead of relying the DSI host driver to set those. Signed-off-by: Tomi Valkeinen Reviewed-by: Sam Ravnborg Reviewed-by: Laurent Pinchart Reviewed-by: Sebastian Reichel Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-61-tomi.valkeinen@ti.com