From: Anusha Srivatsa <anusha.srivatsa@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Subject: [PATCH] drm: Add DPCD definitions for DP 1.4 FEC feature
Date: Mon, 27 Nov 2017 16:55:44 -0800 [thread overview]
Message-ID: <1511830544-5260-1-git-send-email-anusha.srivatsa@intel.com> (raw)
Forward Error Correction is supported on DP 1.4.
This patch adds corresponding DPCD register definitions.
v2: Add dri-devel to the CC list
Cc: dri-devel@lists.freedesktop.org
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
---
include/drm/drm_dp_helper.h | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index da58a42..bc816ea 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -284,6 +284,35 @@
# define DP_DSC_BITS_PER_PIXEL_1_2 0x3
# define DP_DSC_BITS_PER_PIXEL_1 0x4
+/* DP Forward error Correction Registers */
+#define DP_FEC_CAPABILITY 0x090
+# define DP_FEC_CAPABLE (1 << 0)
+# define DP_FEC_UNCORR_BLK_ERROR_COUNT_CAP (1 << 1)
+# define DP_FEC_CORR_BLK_ERROR_COUNT_CAP (1 << 2)
+# define DP_FEC_BIT_ERROR_COUNT_CAP (1 << 3)
+
+#define DP_FEC_CONFIGURATION 0x120
+# define DP_FEC_READY (1 << 0)
+# define DP_FEC_ERR_COUNT_DIS (0 << 1)
+# define DP_FEC_UNCORR_BLK_ERROR_COUNT (1 << 1)
+# define DP_FEC_CORR_BLK_ERROR_COUNT (2 << 1)
+# define DP_FEC_BIT_ERROR_COUNT (3 << 1)
+# define DP_FEC_LANE_0_SELECT (0 << 4)
+# define DP_FEC_LANE_1_SELECT (1 << 4)
+# define DP_FEC_LANE_2_SELECT (2 << 4)
+# define DP_FEC_LANE_3_SELECT (3 << 4)
+
+#define DP_FEC_STATUS 0x280
+# define DP_FEC_EN_DETECTED (1 << 0)
+# define DP_FEC_DEC_DETECTED (1 << 1)
+
+#define DP_FEC_ERROR_COUNT_1 0x0281
+# define DP_FEC_ERR_COUNT_7_0(err_count) (err_count << 0)
+
+#define DP_FEC_ERROR_COUNT_2 0x0282
+# define DP_FEC_ERR_COUNT_14_8(err_count) (err_count << 0)
+# define DP_FEC_ERR_COUNT_VALID (1 << 7)
+
#define DP_PSR_SUPPORT 0x070 /* XXX 1.2? */
# define DP_PSR_IS_SUPPORTED 1
# define DP_PSR2_IS_SUPPORTED 2 /* eDP 1.4 */
--
2.7.4
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next reply other threads:[~2017-11-28 0:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-28 0:55 Anusha Srivatsa [this message]
2017-12-21 20:36 ` [PATCH] drm: Add DPCD definitions for DP 1.4 FEC feature Manasi Navare
2017-12-21 20:51 ` Srivatsa, Anusha
-- strict thread matches above, loose matches on Subject: below --
2017-12-22 22:02 Anusha Srivatsa
2017-12-22 23:39 ` Manasi Navare
2018-02-14 7:59 Anusha Srivatsa
2018-02-14 11:59 ` Jani Nikula
2018-02-14 19:28 ` Anusha Srivatsa
2018-02-15 13:53 ` Jani Nikula
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