drm/dp: Add HBR3 support in existing DRM DP helpers
Existing helpers add support upto HBR2. This patch
adds support for HBR3 rate (8.1 Gbps) introduced as
part of DP 1.4 specification.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1516660991-20697-1-git-send-email-manasi.d.navare@intel.com
diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index adf79be..ffe14ec 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -146,6 +146,8 @@ u8 drm_dp_link_rate_to_bw_code(int link_rate)
return DP_LINK_BW_2_7;
case 540000:
return DP_LINK_BW_5_4;
+ case 810000:
+ return DP_LINK_BW_8_1;
}
}
EXPORT_SYMBOL(drm_dp_link_rate_to_bw_code);
@@ -161,6 +163,8 @@ int drm_dp_bw_code_to_link_rate(u8 link_bw)
return 270000;
case DP_LINK_BW_5_4:
return 540000;
+ case DP_LINK_BW_8_1:
+ return 810000;
}
}
EXPORT_SYMBOL(drm_dp_bw_code_to_link_rate);