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[07/15] UBUNTU: SAUCE: drm/dp: add MSO related DPCD registers

Message ID 20210326073009.515253-8-aaron.ma@canonical.com
State New
Headers show
Series UBUNTU: SAUCE: add support of MSO panel | expand

Commit Message

Aaron Ma March 26, 2021, 7:30 a.m. UTC 
From: Jani Nikula <jani.nikula@intel.com>

BugLink: https://bugs.launchpad.net/bugs/1921318

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
(backported from commit c093056b67a3dd45cf6fc2f2b7902053338891f1
https://anongit.freedesktop.org/git/drm-intel.git drm-intel-next)
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
---
 include/drm/drm_dp_helper.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 54df0431d1e6..e4503df2b46f 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -876,6 +876,11 @@  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)
+
 #define DP_SIDEBAND_MSG_DOWN_REQ_BASE	    0x1000   /* 1.2 MST */
 #define DP_SIDEBAND_MSG_UP_REP_BASE	    0x1200   /* 1.2 MST */
 #define DP_SIDEBAND_MSG_DOWN_REP_BASE	    0x1400   /* 1.2 MST */