kernel/linux.git/drivers/gpu/drm/bridge, branch v4.12.9

drm/bridge: tc358767: fix probe without attached output node

2017-08-16T20:46:52+00:00

commit d630213f2a47933e1037909273a20023ba3e598d upstream. The output node of the TC358767 is only used if another bridge is chained behind it. Panels attached to the TC358767 can be detected using the usual DP AUX probing. This restores the old behavior of ignoring the output if no endpoint is found. Fixes: ebc944613567 (drm: convert drivers to use drm_of_find_panel_or_bridge) Acked-by: Andrey Gusakov Signed-off-by: Lucas Stach Signed-off-by: Archit Taneja Link: https://patchwork.freedesktop.org/patch/msgid/20170710124125.9019-1-l.stach@pengutronix.de Signed-off-by: Greg Kroah-Hartman

drm: dw-hdmi: Fix compilation breakage by selecting REGMAP_MMIO

2017-06-12T03:35:04+00:00

The dw-hdmi driver switched to regmap-mmio, but lacks the dependency in Kconfig. This can result in compilation breakages. Fix it by selecting REGMAP_MMIO. Fixes: 80e2f97968b5 ("drm: bridge: dw-hdmi: Switch to regmap for register access") Reported-by: kbuild test robot Signed-off-by: Laurent Pinchart Signed-off-by: Archit Taneja Link: http://patchwork.freedesktop.org/patch/msgid/20170610085943.15788-1-laurent.pinchart+renesas@ideasonboard.com

drm: dw-hdmi: Implement the mode_fixup drm helper

2017-04-10T09:23:10+00:00

This helper is supposed to validate or reject the modeline before it applied by the mode setting. Currently this function has been dropped, it was previously set to a dummy function that always returned true. For both cases, this means that userspace can ask for a bad modeline that will be always accepted. On some platforms, like Rockchip, the drm dw_hdmi-rockchip variant driver already implements the atomic_check drm helper, so mode_fixup cannot be handled and implemented there (as drm_atomic_helper relies on either atomic_check or mode_fixup). This commit implements this helper. It only checks that this mode is correct from the connector point of view. Acked-by: Daniel Vetter Signed-off-by: Romain Perier Signed-off-by: Archit Taneja Link: http://patchwork.freedesktop.org/patch/msgid/20170407121743.4142-1-romain.perier@collabora.com

drm: bridge: analogix: Destroy connector & encoder when unbinding

2017-04-07T17:28:32+00:00

Normally we do this in drm_mode_config_cleanup. But: 1/ analogix dp's connector is allocated in bind, and freed after unbind. So we need to destroy it in unbind to avoid further access. 2/ the drm bridge is attached in bind, and detached in encoder cleanup. So we need to destroy encoder in unbind. Signed-off-by: Jeffy Chen Reviewed-by: Andrzej Hajda Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1491481885-13775-5-git-send-email-jeffy.chen@rock-chips.com

drm: bridge: analogix: Disable clock when unbinding

2017-04-07T17:28:31+00:00

The clock is enabled when binding analogix dp. Signed-off-by: Jeffy Chen Reviewed-by: Andrzej Hajda Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1491481885-13775-4-git-send-email-jeffy.chen@rock-chips.com

drm: bridge: analogix: Unregister dp aux when unbinding

2017-04-07T17:28:31+00:00

The dp aux is registered when binding analogix dp. Signed-off-by: Jeffy Chen Reviewed-by: Andrzej Hajda Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1491481885-13775-3-git-send-email-jeffy.chen@rock-chips.com

drm: bridge: analogix: Detach panel when unbinding analogix dp

2017-04-07T17:28:31+00:00

The panel is attached when binding analogix dp. Signed-off-by: Jeffy Chen Reviewed-by: Andrzej Hajda Signed-off-by: Sean Paul Link: http://patchwork.freedesktop.org/patch/msgid/1491481885-13775-2-git-send-email-jeffy.chen@rock-chips.com

drm: bridge: dw-hdmi: fix input format/encoding from plat_data

2017-04-07T09:06:53+00:00

The plat_data->input_bus_format and plat_data->input_bus_encoding are unsigned long and are always >=0, but the value 0 was still considered as RGB888 for input_bus_format and default color space for input_bus_encoding in the reworked code. This patch changes the if statement check for a non-zero value to either use the default input bus_format and/or bus_encoding for a zero value and the provided bus_format and/or bus_encoding for a non zero value. Thanks to Dan Carpenter for his bug report at [1]. Tested on Amlogic P230 (with CSC enabled for YUV444 to RGB) and Rockchip RK3288 ACT8846 EVB Board (no CSC involved, direct RGB passthrough). [1] http://lkml.kernel.org/r/20170406052120.GA26578@mwanda Cc: Dan Carpenter Fixes: def23aa7e982 ("drm: bridge: dw-hdmi: Switch to V4L bus format and encodings") Signed-off-by: Neil Armstrong Reviewed-by: Archit Taneja [narmstrong@baylibre.com: reworded commit message and added Fixes tag] Link: http://patchwork.freedesktop.org/patch/msgid/1491471244-24989-1-git-send-email-narmstrong@baylibre.com

drm: convert drivers to use drm_of_find_panel_or_bridge

2017-04-06T21:00:27+00:00

Similar to the previous commit, convert drivers open coding OF graph parsing to use drm_of_find_panel_or_bridge instead. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. Signed-off-by: Rob Herring Reviewed-by: Archit Taneja Tested-by: Philipp Zabel Acked-by: Maxime Ripard [seanpaul dropped rockchip changes since they're now obsolete] Signed-off-by: Sean Paul

drm: convert drivers to use of_graph_get_remote_node

2017-04-06T21:00:27+00:00

Convert drivers to use the new of_graph_get_remote_node() helper instead of parsing the endpoint node and then getting the remote device node. Now drivers can just specify the device node and which port/endpoint and get back the connected remote device node. The details of the graph binding are nicely abstracted into the core OF graph code. This changes some error messages to debug messages (in the graph core). Graph connections are often "no connects" depending on the particular board, so we want to avoid spurious messages. Plus the kernel is not a DT validator. Signed-off-by: Rob Herring Acked-by: Neil Armstrong Tested-by: Liviu Dudau Tested-by: Eric Anholt Tested-by: Jyri Sarha Tested by: Archit Taneja Signed-off-by: Sean Paul