diff options
| author | Philip Chen <philipchen@chromium.org> | 2021-10-28 20:58:11 +0300 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2021-11-11 19:23:19 +0300 |
| commit | e9d9f9582c3d90bced286a63d1f718d4aae60a03 (patch) | |
| tree | 245c912bae98763234feaefc311a9123e68e7570 /drivers/gpu/drm/bridge/Kconfig | |
| parent | 826cff3f7ebba460d3db61f135798ce76b0d26ed (diff) | |
| download | linux-e9d9f9582c3d90bced286a63d1f718d4aae60a03.tar.xz | |
drm/bridge: parade-ps8640: Populate devices on aux-bus
Conventionally, panel is listed under the root of the device tree.
When userland asks for display mode, ps8640 bridge is responsible
for returning EDID when ps8640_bridge_get_edid() is called.
Now enable a new option of listing panel under "aux-bus" of ps8640
bridge node in the device tree. In this case, panel driver can retrieve
EDID by triggering AUX transactions, without ps8640_bridge_get_edid()
calls at all.
To prevent the "old" and "new" options from interfering with each
other's logic flow, disable DRM_BRIDGE_OP_EDID when the new option
is taken.
Signed-off-by: Philip Chen <philipchen@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20211028105754.v5.2.I09899dea340f11feab97d719cb4b62bef3179e4b@changeid
Diffstat (limited to 'drivers/gpu/drm/bridge/Kconfig')
| -rw-r--r-- | drivers/gpu/drm/bridge/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 431b6e12a81f..61db5a66b493 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -182,6 +182,7 @@ config DRM_PARADE_PS8622 config DRM_PARADE_PS8640 tristate "Parade PS8640 MIPI DSI to eDP Converter" depends on OF + select DRM_DP_AUX_BUS select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL |