From c093056b67a3dd45cf6fc2f2b7902053338891f1 Mon Sep 17 00:00:00 2001 From: Jani Nikula <jani.nikula@intel.com> Date: Thu, 11 Feb 2021 16:52:11 +0200 Subject: [PATCH] drm/dp: add MSO related DPCD registers 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 | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index edffd1dcca3e..632ad7faa006 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 */