shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

drm/bridge: dw-hdmi: Restore audio when setting a mode

Browse Source 
[ Upstream commit fadfee3f9d ]

When setting a new display mode, dw_hdmi_setup() calls
dw_hdmi_enable_video_path(), which disables all hdmi clocks, including
the audio clock.

We should only (re-)enable the audio clock if audio was already enabled
when setting the new mode.

Without this patch, on RK3288, there will be HDMI audio on some monitors
if i2s was played to headphone when the monitor was plugged.
ACER H277HU and ASUS PB278 are two of the monitors showing this issue.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191008102145.55134-1-cychiang@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Daniel Kurtz
2019-10-08 18:21:45 +08:00
committed by Greg Kroah-Hartman
parent cdaf057720
commit 327e41607b
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
View File

@@ -1757,7 +1757,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
/* HDMI Initialization Step E - Configure audio */
hdmi_clk_regenerator_update_pixel_clock(hdmi);
hdmi_enable_audio_clk(hdmi, true);
hdmi_enable_audio_clk(hdmi, hdmi->audio_enable);
}
/* not for DVI mode */