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drm/dp: add MSO related DPCD registers

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Add DPCD register definitions for eDP 1.4 Multi-SST Operation.

Cc: Nischal Varide <nischal.varide@intel.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ab57627f373ec4a80494bb51ea51080810d9bfb0.1613054234.git.jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2021-02-11 16:52:11 +02:00
parent 1b6872fe1e
commit c093056b67
1 changed files with 5 additions and 0 deletions
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5
include/drm/drm_dp_helper.h
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@ -1016,6 +1016,11 @@ struct drm_device;
#define DP_EDP_REGIONAL_BACKLIGHT_BASE 0x740 /* eDP 1.4 */
#define DP_EDP_REGIONAL_BACKLIGHT_0 0x741 /* eDP 1.4 */
#define DP_EDP_MSO_LINK_CAPABILITIES 0x7a4 /* eDP 1.4 */
# define DP_EDP_MSO_NUMBER_OF_LINKS_MASK (7 << 0)
# define DP_EDP_MSO_NUMBER_OF_LINKS_SHIFT 0
# define DP_EDP_MSO_INDEPENDENT_LINK_BIT (1 << 3)
/* Sideband MSG Buffers */
#define DP_SIDEBAND_MSG_DOWN_REQ_BASE 0x1000 /* 1.2 MST */
#define DP_SIDEBAND_MSG_UP_REP_BASE 0x1200 /* 1.2 MST */