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| author | George Shen <george.shen@amd.com> | 2020-12-22 14:05:41 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-17 11:02:23 +0100 |
| commit | 7963f3ff8eddea42c3510a5cde0250e8cce017d6 (patch) | |
| tree | 7ca526c1d707d9b325c31363f359e48dcdaaf850 | |
| parent | 07c8c581d2be28ba988c6f772a26b6de129fb7a8 (diff) | |
| download | linux-stable-7963f3ff8eddea42c3510a5cde0250e8cce017d6.tar.gz linux-stable-7963f3ff8eddea42c3510a5cde0250e8cce017d6.tar.bz2 linux-stable-7963f3ff8eddea42c3510a5cde0250e8cce017d6.zip | |
drm/amd/display: Fix DPCD translation for LTTPR AUX_RD_INTERVAL
[ Upstream commit 2b6b7ab4b1cabfbee1af5d818efcab5d51d62c7e ]
[Why]
The translation between the DPCD value and the specified AUX_RD_INTERVAL
in the DP spec do not match.
[How]
Update values to match the spec.
Signed-off-by: George Shen <george.shen@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 17e6fd820139..32b73ea86673 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -877,13 +877,13 @@ static uint32_t translate_training_aux_read_interval(uint32_t dpcd_aux_read_inte switch (dpcd_aux_read_interval) { case 0x01: - aux_rd_interval_us = 400; + aux_rd_interval_us = 4000; break; case 0x02: - aux_rd_interval_us = 4000; + aux_rd_interval_us = 8000; break; case 0x03: - aux_rd_interval_us = 8000; + aux_rd_interval_us = 12000; break; case 0x04: aux_rd_interval_us = 16000; |