linux-stable.git/drivers/gpu/drm/bridge, branch linux-6.8.y

drm/bridge: anx7625: Update audio status while detecting

2024-05-30T07:49:40+00:00

[ Upstream commit a665b4e60369867cddf50f37f16169a3e2f434ad ]

Previously, the audio status was not updated during detection, leading
to a persistent audio despite hot plugging events. To resolve this
issue, update the audio status during detection.

Fixes: 566fef1226c1 ("drm/bridge: anx7625: add HDMI audio function")
Signed-off-by: Hsin-Te Yuan 
Reviewed-by: Robert Foss 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240416-anx7625-v3-1-f916ae31bdd7@chromium.org
Signed-off-by: Sasha Levin

drm/bridge: dpc3433: Don't log an error when DSI host can't be found

2024-05-30T07:49:40+00:00

[ Upstream commit 24f4f575214de776539d346b99b8717bffa8ebba ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Also move the "failed to attach" error message so that it's only printed
when the devm_mipi_dsi_attach() call fails.

Fixes: 6352cd451ddb ("drm: bridge: Add TI DLPC3433 DSI to DMD bridge")
Suggested-by: AngeloGioacchino Del Regno 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-7-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm/bridge: tc358775: Don't log an error when DSI host can't be found

2024-05-30T07:49:40+00:00

[ Upstream commit 272377aa0e3dddeec3f568c8bb9d12c7a79d8ef5 ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: b26975593b17 ("display/drm/bridge: TC358775 DSI/LVDS driver")
Suggested-by: AngeloGioacchino Del Regno 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-6-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm/bridge: lt9611uxc: Don't log an error when DSI host can't be found

2024-05-30T07:49:40+00:00

[ Upstream commit 6d9e877cde7e9b516a9a99751b8222c87557436d ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge")
Suggested-by: AngeloGioacchino Del Regno 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Reviewed-by: Dmitry Baryshkov 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-5-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm/bridge: lt9611: Don't log an error when DSI host can't be found

2024-05-30T07:49:40+00:00

[ Upstream commit cd0a2c6a081ff67007323725b9ff07d9934b1ed8 ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge")
Suggested-by: AngeloGioacchino Del Regno 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Reviewed-by: Dmitry Baryshkov 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-4-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm/bridge: lt8912b: Don't log an error when DSI host can't be found

2024-05-30T07:49:40+00:00

[ Upstream commit b3b4695ff47c4964d4ccb930890c9ffd8e455e20 ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Suggested-by: AngeloGioacchino Del Regno 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-3-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm/bridge: icn6211: Don't log an error when DSI host can't be found

2024-05-30T07:49:39+00:00

[ Upstream commit 275fafe58faa7fdb10fa245412696ecef676aac5 ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: 8dde6f7452a1 ("drm: bridge: icn6211: Add I2C configuration support")
Suggested-by: AngeloGioacchino Del Regno 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-2-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm/bridge: anx7625: Don't log an error when DSI host can't be found

2024-05-30T07:49:39+00:00

[ Upstream commit ef4a9204d594fe959cdbc7418273caf4001535c8 ]

Given that failing to find a DSI host causes the driver to defer probe,
make use of dev_err_probe() to log the reason. This makes the defer
probe reason available and avoids alerting userspace about something
that is not necessarily an error.

Fixes: 269332997a16 ("drm/bridge: anx7625: Return -EPROBE_DEFER if the dsi host was not found")
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: Neil Armstrong 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Nícolas F. R. A. Prado 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240415-anx7625-defer-log-no-dsi-host-v3-1-619a28148e5c@collabora.com
Signed-off-by: Sasha Levin

drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference

2024-05-30T07:49:37+00:00

[ Upstream commit 935a92a1c400285545198ca2800a4c6c519c650a ]

In cdns_mhdp_atomic_enable(), the return value of drm_mode_duplicate() is
assigned to mhdp_state->current_mode, and there is a dereference of it in
drm_mode_set_name(), which will lead to a NULL pointer dereference on
failure of drm_mode_duplicate().

Fix this bug add a check of mhdp_state->current_mode.

Fixes: fb43aa0acdfd ("drm: bridge: Add support for Cadence MHDP8546 DPI/DP bridge")
Signed-off-by: Aleksandr Mishin 
Reviewed-by: Robert Foss 
Signed-off-by: Robert Foss 
Link: https://patchwork.freedesktop.org/patch/msgid/20240408125810.21899-1-amishin@t-argos.ru
Signed-off-by: Sasha Levin

pwm: Drop useless member .of_pwm_n_cells of struct pwm_chip

2024-05-30T07:49:18+00:00

[ Upstream commit 4e77431cda4973f03d063c47f6ea313dfceebf16 ]

Apart from the two of_xlate implementations this member is write-only.
In the of_xlate functions of_pwm_xlate_with_flags() and
of_pwm_single_xlate() it's more sensible to check for args->args_count
because this is what is actually used in the device tree.

Acked-by: Douglas Anderson 
Link: https://lore.kernel.org/r/53d8c545aa8f79a920358be9e72e382b3981bdc4.1704835845.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König 
Stable-dep-of: 3e551115aee0 ("pwm: meson: Add check for error from clk_round_rate()")
Signed-off-by: Sasha Levin