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| author | Jake Wang <haonan.wang2@amd.com> | 2021-10-21 19:10:17 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-03 12:32:34 -0400 |
| commit | 0a068b683c87a85351a06017932fb0d4ec8d6b4b (patch) | |
| tree | ecb67e5616cde6c867403855957d562166a11a1b /drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h | |
| parent | edcf52caa985c010d0a6022190c8e3d3980a0223 (diff) | |
| download | linux-0a068b683c87a85351a06017932fb0d4ec8d6b4b.tar.gz linux-0a068b683c87a85351a06017932fb0d4ec8d6b4b.tar.bz2 linux-0a068b683c87a85351a06017932fb0d4ec8d6b4b.zip | |
drm/amd/display: Added HPO HW control shutdown support
[Why]
HPO is only used for DP2.0. HPO HW control should be
disable when not being used to save power.
[How]
Shutdown HPO HW control during init hw.
Shutdown HPO HW control during stream disable.
Enable HPO HW control during stream enable if DP2.0.
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h index 989f5b6907e2..a3fee929cd12 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_hwseq.h @@ -671,6 +671,7 @@ struct dce_hwseq_registers { uint32_t MC_VM_FB_LOCATION_BASE; uint32_t MC_VM_FB_LOCATION_TOP; uint32_t MC_VM_FB_OFFSET; + uint32_t HPO_TOP_HW_CONTROL; }; /* set field name */ #define HWS_SF(blk_name, reg_name, field_name, post_fix)\ @@ -1152,7 +1153,8 @@ struct dce_hwseq_registers { type DOMAIN_PGFSM_PWR_STATUS;\ type HPO_HDMISTREAMCLK_G_GATE_DIS;\ type DISABLE_HOSTVM_FORCE_ALLOW_PSTATE;\ - type I2C_LIGHT_SLEEP_FORCE; + type I2C_LIGHT_SLEEP_FORCE;\ + type HPO_IO_EN; struct dce_hwseq_shift { HWSEQ_REG_FIELD_LIST(uint8_t) |