kernel/linux.git/drivers/gpu/drm/bridge, branch v5.16.1

drm/bridge: nwl-dsi: Add atomic_get_input_bus_fmts

2021-10-12T09:17:41+00:00

Components further up in the chain might ask us for supported formats. Without this MEDIA_BUS_FMT_FIXED is assumed which then breaks display output with mxsfb since it can't determine a proper bus format. We handle the bus formats that correspond to the DSI formats the bridge can potentially output (see chapter 13.6 of the i.MX 8MQ reference manual) - which matches what xsfb can input. Fixes: b776b0f00f24 ("drm: mxsfb: Use bus_format from the nearest bridge if present") Signed-off-by: Guido Günther Reviewed-by: Lucas Stach Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/1712f2b952694fd4484dfd8576fbc5b4d7adf042.1633959458.git.agx@sigxcpu.org

drm/bridge: lvds-codec: Add support for LVDS data mapping select

2021-10-10T17:10:35+00:00

Decoder input LVDS format is a property of the decoder chip or even its strapping. Handle data-mapping the same way lvds-panel does. In case data-mapping is not present, do nothing, since there are still legacy bindings which do not specify this property. Signed-off-by: Marek Vasut Reviewed-by: Laurent Pinchart Reviewed-by: Sam Ravnborg To: dri-devel@lists.freedesktop.org Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20211010144919.38392-2-marex@denx.de

drm/bridge: ti-sn65dsi83: Implement .detach callback

2021-10-08T09:00:37+00:00

Move detach implementation from sn65dsi83_remove() to dedicated .detach callback. There is no functional change to the code, but that detach is now in the correct location. Signed-off-by: Marek Vasut Cc: Jagan Teki Cc: Laurent Pinchart Cc: Linus Walleij Cc: Robert Foss Cc: Sam Ravnborg Cc: dri-devel@lists.freedesktop.org Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210907024038.871299-1-marex@denx.de

drm/bridge/lontium-lt9611uxc: fix provided connector suport

2021-10-06T11:59:08+00:00

- set DRM_CONNECTOR_POLL_HPD as the connector will generate hotplug events on its own - do not call drm_kms_helper_hotplug_event() unless mode_config.funcs pointer is not NULL to remove possible kernel oops. Fixes: bc6fa8676ebb ("drm/bridge/lontium-lt9611uxc: move HPD notification out of IRQ handler") Signed-off-by: Dmitry Baryshkov Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210708230329.395976-1-dmitry.baryshkov@linaro.org

drm/bridge: dw-hdmi-cec: Make use of the helper function devm_add_action_or_reset()

2021-10-06T09:21:46+00:00

The helper function devm_add_action_or_reset() will internally call devm_add_action(), and if devm_add_action() fails then it will execute the action mentioned and return the error code. So use devm_add_action_or_reset() instead of devm_add_action() to simplify the error handling, reduce the code. Signed-off-by: Cai Huoqing Reviewed-by: Laurent Pinchart Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210922125909.215-1-caihuoqing@baidu.com

drm/bridge: ti-sn65dsi86: Implement bridge->mode_valid()

2021-10-01T17:59:48+00:00

For the brave new world of bridges not creating their own connectors, we need to implement the max clock limitation via bridge->mode_valid() instead of connector->mode_valid(). v2: Drop unneeded connector->mode_valid() Signed-off-by: Rob Clark Reviewed-by: Douglas Anderson Reviewed-by: Laurent Pinchart Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20210920225801.227211-3-robdclark@gmail.com

drm/bridge: parade-ps8640: Add support for AUX channel

2021-09-23T20:53:40+00:00

Implement the first version of AUX support, which will be useful as we expand the driver to support varied use cases. Signed-off-by: Philip Chen Reviewed-by: Sam Ravnborg Reviewed-by: Douglas Anderson Reviewed-by: Stephen Boyd [dianders: whitespace fixes reported by dim apply-branch] Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20210921110556.v6.2.I1d6ea362dc76efa77cca2b46253d31b7651eaf17@changeid

drm/bridge: parade-ps8640: Use regmap APIs

2021-09-23T20:53:30+00:00

Replace the direct i2c access (i2c_smbus_* functions) with regmap APIs, which will simplify the future update on ps8640 driver. Signed-off-by: Philip Chen Reviewed-by: Douglas Anderson Acked-by: Sam Ravnborg Reviewed-by: Stephen Boyd [dianders: whitespace fixes reported by dim apply-branch] Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20210921110556.v6.1.I2351df94f18d5d8debc22d4d100f36fac560409a@changeid

drm/bridge: Move devm_drm_of_get_bridge to bridge/panel.c

2021-09-22T08:44:00+00:00

By depending on devm_drm_panel_bridge_add(), devm_drm_of_get_bridge() introduces a circular dependency between the modules drm (where devm_drm_of_get_bridge() ends up) and drm_kms_helper (where devm_drm_panel_bridge_add() is). Fix this by moving devm_drm_of_get_bridge() to bridge/panel.c and thus drm_kms_helper. Fixes: 87ea95808d53 ("drm/bridge: Add a function to abstract away panels") Reported-by: Stephen Rothwell Signed-off-by: Maxime Ripard Tested-by: Heiko Stuebner Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20210917180925.2602266-1-maxime@cerno.tech

drm: bridge: it66121: Fix return value it66121_probe

2021-09-20T09:26:06+00:00

Currently it66121_probe returns -EPROBE_DEFER if the there is no remote endpoint found in the device tree which doesn't seem helpful, since this is not going to change later and it is never checked if the next bridge has been initialized yet. It will fail in that case later while doing drm_bridge_attach for the next bridge in it66121_bridge_attach. Since the bindings documentation for it66121 bridge driver states there has to be a remote endpoint defined, its safe to return -EINVAL in that case. This additonally adds a check, if the remote endpoint is enabled and returns -EPROBE_DEFER, if the remote bridge hasn't been initialized (yet). Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver") Signed-off-by: Alex Bee Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210918140420.231346-1-knaerzche@gmail.com