diff options
| author | Maxime Ripard <maxime@cerno.tech> | 2021-05-07 17:05:14 +0200 |
|---|---|---|
| committer | Maxime Ripard <maxime@cerno.tech> | 2021-05-24 14:44:04 +0200 |
| commit | 257d36d493e94e70cdc941e66f81ad3c30c80008 (patch) | |
| tree | 8d12085c8b20259436a82d0c387e3d46cf7cde65 /drivers/gpu/drm/vc4/vc4_hdmi.h | |
| parent | c85695a2016e2ed0f3641f9f5917642e7d3c3721 (diff) | |
drm/vc4: hdmi: Add a workqueue to set scrambling
It looks like some displays (like the LG 27UL850-W) don't enable the
scrambling when the HDMI driver enables it. However, if we set later the
scrambler enable bit, the display will work as expected.
Let's create delayed work queue to periodically look at the display
scrambling status, and if it's not set yet try to enable it again.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-12-maxime@cerno.tech
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_hdmi.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.h b/drivers/gpu/drm/vc4/vc4_hdmi.h index 089c91b3e14f..39bd2c413ec0 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.h +++ b/drivers/gpu/drm/vc4/vc4_hdmi.h @@ -129,6 +129,8 @@ struct vc4_hdmi { struct vc4_hdmi_encoder encoder; struct drm_connector connector; + struct delayed_work scrambling_work; + struct i2c_adapter *ddc; void __iomem *hdmicore_regs; void __iomem *hd_regs; |