diff mbox series

[1/2] drm/dp: add MSO related DPCD registers

Message ID 1e33760f776359de8de5e164dbc8d4b988baf03d.1611051544.git.jani.nikula@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915/dp: read eDP sink MSO configuration | expand

Commit Message

Jani Nikula Jan. 19, 2021, 10:22 a.m. UTC 
Add DPCD register definitions for eDP 1.4 Multi-SST Operation.

Cc: Nischal Varide <nischal.varide@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 include/drm/drm_dp_helper.h | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 6236f212da61..a6ebecdcf1d4 100644
--- 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 */