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From: Jani Nikula <jani.nikula@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: jani.nikula@intel.com, dri-devel@lists.freedesktop.org
Subject: [PATCH 1/3] drm/dp: add drm_dp_tps3_supported helper
Date: Wed, 26 Aug 2015 14:33:31 +0300	[thread overview]
Message-ID: <1440588813-21109-1-git-send-email-jani.nikula@intel.com> (raw)

Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---
 include/drm/drm_dp_helper.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 499e9f625aef..8c52d0ef1fc9 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -634,6 +634,13 @@ drm_dp_enhanced_frame_cap(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
 		(dpcd[DP_MAX_LANE_COUNT] & DP_ENHANCED_FRAME_CAP);
 }
 
+static inline bool
+drm_dp_tps3_supported(const u8 dpcd[DP_RECEIVER_CAP_SIZE])
+{
+	return dpcd[DP_DPCD_REV] >= 0x12 &&
+		dpcd[DP_MAX_LANE_COUNT] & DP_TPS3_SUPPORTED;
+}
+
 /*
  * DisplayPort AUX channel
  */
-- 
2.1.4

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             reply	other threads:[~2015-08-26 11:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-26 11:33 Jani Nikula [this message]
2015-08-26 11:33 ` [PATCH 2/3] drm/i915/dp: use the drm dp helper for determining sink tps3 support Jani Nikula
2015-08-26 11:33 ` [PATCH 3/3] drm/i915/dp: move TPS3 logic to where it's used Jani Nikula
2015-08-26 13:22 ` [PATCH 1/3] drm/dp: add drm_dp_tps3_supported helper Alex Deucher

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