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drm/dp: add MSO related DPCD registers
author
Jani Nikula
<jani.nikula@intel.com>
Thu, 11 Feb 2021 14:52:11 +0000
(16:52 +0200)
committer
Jani Nikula
<jani.nikula@intel.com>
Mon, 22 Feb 2021 16:04:50 +0000
(18:04 +0200)
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
include/drm/drm_dp_helper.h
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diff --git
a/include/drm/drm_dp_helper.h
b/include/drm/drm_dp_helper.h
index
edffd1d
..
632ad7f
100644
(file)
--- a/
include/drm/drm_dp_helper.h
+++ b/
include/drm/drm_dp_helper.h
@@
-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 */