Commit 4c953d03 authored Oct 08, 2018 by Manasi Navare

drm/dp: Add definitions for eDP Rev 1.4a and 1.4b

VESA eDP 1.4 specification has separate fields defined in
EDP_DPCD_REV for eDP 1.4a and 1.4b eDP revisions.
This patch defines those. Found this when one of my eDP panels
advertises eDP 1.4a (04h) in the EDP_DPCD_REV DPCD field.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181009002351.23085-1-manasi.d.navare@intel.com

parent 4035cc57

include/drm/drm_dp_helper.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -685,6 +685,8 @@
		# define DP_EDP_12 0x01
		# define DP_EDP_13 0x02
		# define DP_EDP_14 0x03
		# define DP_EDP_14a 0x04 /* eDP 1.4a */
		# define DP_EDP_14b 0x05 /* eDP 1.4b */

		#define DP_EDP_GENERAL_CAP_1 0x701
		# define DP_EDP_TCON_BACKLIGHT_ADJUSTMENT_CAP (1 << 0)

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