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| author | Pin-Yen Lin <treapking@chromium.org> | 2022-07-14 11:39:20 +0200 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-07-18 13:27:23 +0200 |
| commit | fbc1fdaa8338ec4ebd862d918a0ce3e12033e8a3 (patch) | |
| tree | 8577aedb89aaa9b6dd96b962cd881853ba40cd20 /drivers/gpu/drm/bridge/ite-it6505.c | |
| parent | drm/ssd130x: Use new regmap bulk write support to drop custom bus (diff) | |
| download | linux-fbc1fdaa8338ec4ebd862d918a0ce3e12033e8a3.tar.xz linux-fbc1fdaa8338ec4ebd862d918a0ce3e12033e8a3.zip | |
drm/bridge: it6505: Power on downstream device in .atomic_enable
Send DPCD DP_SET_POWER_D0 command to the monitor in .atomic_enable
callback. Without this command, some monitors won't show up again after
changing the resolution.
Fixes: 46ca7da7f1e8 ("drm/bridge: it6505: Send DPCD SET_POWER to downstream")
Signed-off-by: Pin-Yen Lin <treapking@chromium.org>
Reviewed-by: Allen Chen <allen.chen@ite.com.tw>
Fixes: 46ca7da7f1e8 ("drm/bridge: it6505: Send DPCD SET_POWER to downstream")
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220714173715.v2.1.I85af54e9ceda74ec69f661852825845f983fc343@changeid
Diffstat (limited to 'drivers/gpu/drm/bridge/ite-it6505.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/ite-it6505.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index 4b673c4792d7..e5626035f311 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2945,6 +2945,9 @@ static void it6505_bridge_atomic_enable(struct drm_bridge *bridge, if (ret) dev_err(dev, "Failed to setup AVI infoframe: %d", ret); + it6505_drm_dp_link_set_power(&it6505->aux, &it6505->link, + DP_SET_POWER_D0); + it6505_update_video_parameter(it6505, mode); ret = it6505_send_video_infoframe(it6505, &frame); |