From e0bd878a959008f02a1280b1dd2c128324586af3 Mon Sep 17 00:00:00 2001 From: Manasi Navare Date: Mon, 22 Jan 2018 14:43:10 -0800 Subject: 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 Cc: Jani Nikula Cc: dri-devel@lists.freedesktop.org Signed-off-by: Manasi Navare Reviewed-by: Harry Wentland Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/1516660991-20697-1-git-send-email-manasi.d.navare@intel.com --- drivers/gpu/drm/drm_dp_helper.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/gpu/drm/drm_dp_helper.c') diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index adf79be42c1e..ffe14ec3e7f2 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); -- cgit v1.2.3