Merge tag 'topic/phy-compliance-2020-04-08' of git://anongit.freedesktop.org/drm...

[platform/kernel/linux-rpi.git] / include / drm / drm_dp_helper.h

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 305533d..3beb2aa 100644 (file)
--- 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
@@ -1735,4 +1744,26 @@ 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_ */