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| author |   Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-04-16 14:36:38 +0300 |
|---|---|---|
| committer | Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-04-16 14:52:59 +0300 |
| commit | cef622d7634e0adc351d795f089e7b77700272ca (patch) | |
| tree | 589f201893f5082c0e5ea85dac25780a1827518f /include/drm | |
| parent | Merge drm/drm-next into drm-intel-next-queued (diff) | |
| parent | drm/i915/dp: Program vswing, pre-emphasis, test-pattern (diff) | |
| download | wireguard-linux-cef622d7634e0adc351d795f089e7b77700272ca.tar.xz wireguard-linux-cef622d7634e0adc351d795f089e7b77700272ca.zip | |
Merge tag 'topic/phy-compliance-2020-04-08' of git://anongit.freedesktop.org/drm/drm-misc into drm-intel-next-queued
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.
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/efb3d0d9-2cf7-046b-3a9b-2548d086258e@linux.intel.com
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_dp_helper.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 305533da13ad..3beb2aac8c4c 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 @@ -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_ */ |