Move DRM's HDCP helper library into the display/ subdirectory and add
it to DRM's display helpers. Split the header file into core and helpers.
Update all affected drivers. No functional changes.
v3:
* fix Kconfig dependencies
v2:
* fix include statements (Jani, Javier)
* update Kconfig symbols
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-7-tzimmermann@suse.de
Rename dp/ to display/ to account for additional display-related
helpers, such as HDMI. Update all related include statements. No
functional changes.
Various drivers, such as i915 and amdgpu, use similar naming scheme
by putting code for video-output standards into a local display/
directory. The new directory's name is aligned with this convention.
v2:
* update commit message (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220421073108.19226-3-tzimmermann@suse.de
As defined in the anx7625 dt-binding, the analogix,lane0-swing and
analogix,lane1-swing properties are uint8 arrays. Yet, the driver was
reading the array as if it were of uint32 and masking to 8-bit before
writing to the registers. This means that a devicetree written in
accordance to the dt-binding would have its values incorrectly parsed.
Fix the issue by reading the array as uint8 and storing them as uint8
internally, so that we can also drop the masking when writing the
registers.
Fixes: fd0310b6fe ("drm/bridge: anx7625: add MIPI DPI input feature")
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220408013034.673418-1-nfraprado@collabora.com
If the previous transfer didn't end with a command without DP_AUX_I2C_MOT,
the next read trasnfer will miss the first byte. But if the command in
previous transfer is requested with length 0, it's a no-op to anx7625
since it can't process this command. anx7625 requires the last command
to be read command with length > 0.
It's observed that if we clear the DP_AUX_I2C_MOT in read transfer, we
can still get correct data. Clear the read commands with DP_AUX_I2C_MOT
bit to fix this issue.
Fixes: adca62ec37 ("drm/bridge: anx7625: Support reading edid through aux channel")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Xin Ji <xji@analogixsemi.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220217082224.1823916-1-hsinyi@chromium.org
Support reading edid through aux channel if panel is connected to aux
bus. Extend anx7625_aux_dpcd_trans() to implement aux transfer function:
1. panel is populated in devm_of_dp_aux_populate_ep_devices(), so move
anx7625_parse_dt() after.
2. Use pm runtime autosuspend since aux transfer function is called
multiple times when reading edid.
3. No-op if aux transfer length is 0.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Xin Ji <xji@analogixsemi.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220213103437.3363848-3-hsinyi@chromium.org
It will connect to the mipi dsi host and find the corresponding
mipi dsi host node, but the node registered by the mipi dsi host
has not been loaded yet. of_find_mipi_dsi_host_by_node() returns -EINVAL
which causes the calling driver to fail.
If the anx7625 driver is loaded afterwards the driver requesting
the mipi dsi host will not notice this.
Better approach is to return -EPROBE_DEFER in such case.
Then when the anx7625 driver appears the driver requesting
the mipi dsi host will be probed again.
Signed-off-by: owen <qwt9588@gmail.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220117100949.9542-1-qwt9588@gamil.com
Reviewed-by: Robert Foss <robert.foss@linaro.org>
drm-misc-next for v5.15:
UAPI Changes:
- Add modifiers for arm fixed rate compression.
Cross-subsystem Changes:
- Assorted dt binding fixes.
- Convert ssd1307fb to json-schema.
- Update a lot of irc channels to point to OFTC, as everyone moved there.
- Fix the same divide by zero for asilantfb, kyro, rivafb.
Core Changes:
- Document requirements for new atomic properties.
- Add drm_gem_fb_(begin/end)_cpu_access helpers, and use them in some drivers.
- Document drm_property_enum.value for bitfields.
- Add explicit _NO_ for MIPI_DSI flags that disable features.
- Assorted documentation fixes.
- Update fb_damage handling, and move drm_plane_enable_fb_damage_clips to core.
- Add logging and docs to RMFB ioctl.
- Assorted small fixes to dp_mst, master handling.
- Clarify drm lease usage.
Driver Changes:
- Assorted small fixes to panfrost, hibmc, bridge/nwl-dsi, rockchip, vc4.
- More drm -> linux irq conversions.
- Add support for some Logic Technologies and Multi-Inno panels.
- Expose phy-functionality for drm/rockchip, to allow controlling from the media subsystem.
- Add support for 2 AUO panels.
- Add damage handling to ssd1307fb.
- Improve FIFO handling on mxsfb.
- Assorted small fixes to vmwgfx, and bump version to 2.19 for the new ioctls.
- Improve sony acx424akp backlight handling.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a753221a-e23e-0dc4-7ca6-8c1b179738d0@linux.intel.com
There were still a race condition between hpd work and suspend, since
the workqueue work can still be run after anx7625 had powered off in
suspend.
Since we never want hpd work to run while suspending, and there's no
harm to delay them to be run after resume, mark the workqueue as
WQ_FREEZABLE so all works won't run while suspending.
Fixes: 409776fa3c ("drm/bridge: anx7625: add suspend / resume hooks")
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210615032937.2328468-1-pihsun@chromium.org
Originally when using pm_runtime_put, there's a chance that the runtime
suspend hook will be run after the following anx7625_bridge_mode_set
call, resulting in the display_timing_valid field to be cleared, and the
following power on fail.
Change all pm_runtime_put to pm_runtime_put_sync, so all power off
operations are guaranteed to be done after the call returns.
Fixes: 60487584a7 ("drm/bridge: anx7625: refactor power control to use runtime PM framework")
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Tested-by: Tzung-Bi Shih <tzungbi@google.com>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210520064508.3121211-1-pihsun@chromium.org
The driver originally use an atomic_t for keep track of the power
status, which makes the driver more complicated than needed, and has
some race condition as it's possible to have the power on and power off
sequence going at the same time.
This patch remove the usage of the atomic_t power_status, and use the
kernel runtime power management framework instead.
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210517063553.554955-1-pihsun@chromium.org
