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authorThomas Zimmermann <tzimmermann@suse.de>2020-04-17 08:52:37 +0200
committerThomas Zimmermann <tzimmermann@suse.de>2020-04-17 08:52:39 +0200
commit948565468cfbf7f80eef58aa7f2b7c22dd518bf8 (patch)
treedb7b44f59e01d9ffe8e2ee7b21479598a5abc7f6 /include/drm
parent08d99b2c23dfa84ca5b5e5c194062a0550888b71 (diff)
parent8cdf727119289db3a98835662eb28e1c5ad835f1 (diff)
Merge tag 'topic/phy-compliance-2020-04-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-misc-next
Topic pull request for topic/phy-compliance: - Standardize DP_PHY_TEST_PATTERN name. - Add support for setting/getting test pattern from sink. - Implement DP PHY compliance to i915. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> # gpg: Signatur vom Mi 08 Apr 2020 14:46:42 CEST # gpg: mittels RSA-Schlüssel B97BD6A80CAC4981091AE547FE558C72A67013C3 # gpg: Signatur kann nicht geprüft werden: Kein öffentlicher Schlüssel From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/efb3d0d9-2cf7-046b-3a9b-2548d086258e@linux.intel.com
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/drm_dp_helper.h33
1 files changed, 32 insertions, 1 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c6119e4c169a..e22cf5b2f174 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -701,7 +701,16 @@
# define DP_TEST_CRC_SUPPORTED (1 << 5)
# define DP_TEST_COUNT_MASK 0xf
-#define DP_TEST_PHY_PATTERN 0x248
+#define DP_PHY_TEST_PATTERN 0x248
+# define DP_PHY_TEST_PATTERN_SEL_MASK 0x7
+# define DP_PHY_TEST_PATTERN_NONE 0x0
+# define DP_PHY_TEST_PATTERN_D10_2 0x1
+# define DP_PHY_TEST_PATTERN_ERROR_COUNT 0x2
+# define DP_PHY_TEST_PATTERN_PRBS7 0x3
+# define DP_PHY_TEST_PATTERN_80BIT_CUSTOM 0x4
+# define DP_PHY_TEST_PATTERN_CP2520 0x5
+
+#define DP_TEST_HBR2_SCRAMBLER_RESET 0x24A
#define DP_TEST_80BIT_CUSTOM_PATTERN_7_0 0x250
#define DP_TEST_80BIT_CUSTOM_PATTERN_15_8 0x251
#define DP_TEST_80BIT_CUSTOM_PATTERN_23_16 0x252
@@ -1598,4 +1607,26 @@ static inline void drm_dp_cec_unset_edid(struct drm_dp_aux *aux)
#endif
+/**
+ * struct drm_dp_phy_test_params - DP Phy Compliance parameters
+ * @link_rate: Requested Link rate from DPCD 0x219
+ * @num_lanes: Number of lanes requested by sing through DPCD 0x220
+ * @phy_pattern: DP Phy test pattern from DPCD 0x248
+ * @hb2_reset: DP HBR2_COMPLIANCE_SCRAMBLER_RESET from DCPD 0x24A and 0x24B
+ * @custom80: DP Test_80BIT_CUSTOM_PATTERN from DPCDs 0x250 through 0x259
+ * @enhanced_frame_cap: flag for enhanced frame capability.
+ */
+struct drm_dp_phy_test_params {
+ int link_rate;
+ u8 num_lanes;
+ u8 phy_pattern;
+ u8 hbr2_reset[2];
+ u8 custom80[10];
+ bool enhanced_frame_cap;
+};
+
+int drm_dp_get_phy_test_pattern(struct drm_dp_aux *aux,
+ struct drm_dp_phy_test_params *data);
+int drm_dp_set_phy_test_pattern(struct drm_dp_aux *aux,
+ struct drm_dp_phy_test_params *data, u8 dp_rev);
#endif /* _DRM_DP_HELPER_H_ */