drm/i915/dsi: transmit brightness command in HS state

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In Video Mode, if DSI transcoder is set to transmit packets
in LP Escape mode, screen flickering would be obseved when
brightness commands are continuously and quickly transmitted
to a panel.

The problem may be resolved by changing the mode to transmit
packets from Low Power to HS.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Lee Shawn C <shawn.c.lee@intel.com>
Cc: Cooper Chiou <cooper.chiou@intel.com>
Signed-off-by: William Tseng <william.tseng@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211110010217.26759-1-william.tseng@intel.com

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William Tseng 2021-11-10 09:02:17 +08:00 • committed by Jani Nikula

parent f35294e13c

commit d1260be706

1 changed files with 4 additions and 0 deletions

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drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c

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