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drm/amd/display: Revert Avoid overflow assignment

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BugLink: https://bugs.launchpad.net/bugs/2089884

commit e80f8f491df873ea2e07c941c747831234814612 upstream.

This reverts commit a15268787b79 ("drm/amd/display: Avoid overflow assignment in link_dp_cts")
Due to regression causing DPMS hang.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Gabe Teeger <Gabe.Teeger@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Roxana Nicolescu <roxana.nicolescu@canonical.com>
This commit is contained in:
Gabe Teeger
2024-07-25 18:42:21 -04:00
committed by Mehmet Basaran
parent 0d1d301f97
commit 367df1ea84
3 changed files with 2 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/amd/display/dc/dc_dp_types.h
+1 -1
View File
@@ -722,7 +722,7 @@ struct dp_audio_test_data_flags {
struct dp_audio_test_data {
struct dp_audio_test_data_flags flags;
uint32_t sampling_rate;
uint8_t sampling_rate;
uint8_t channel_count;
uint8_t pattern_type;
uint8_t pattern_period[8];
drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
+1 -2
View File
@@ -787,8 +787,7 @@ bool dp_set_test_pattern(
core_link_read_dpcd(link, DP_TRAINING_PATTERN_SET,
&training_pattern.raw,
sizeof(training_pattern));
if (pattern <= PHY_TEST_PATTERN_END_DP11)
training_pattern.v1_3.LINK_QUAL_PATTERN_SET = pattern;
training_pattern.v1_3.LINK_QUAL_PATTERN_SET = pattern;
core_link_write_dpcd(link, DP_TRAINING_PATTERN_SET,
&training_pattern.raw,
sizeof(training_pattern));
drivers/gpu/drm/amd/display/include/dpcd_defs.h
-1
View File
@@ -76,7 +76,6 @@ enum dpcd_phy_test_patterns {
PHY_TEST_PATTERN_D10_2,
PHY_TEST_PATTERN_SYMBOL_ERROR,
PHY_TEST_PATTERN_PRBS7,
PHY_TEST_PATTERN_END_DP11 = PHY_TEST_PATTERN_PRBS7,
PHY_TEST_PATTERN_80BIT_CUSTOM,/* For DP1.2 only */
PHY_TEST_PATTERN_CP2520_1,
PHY_TEST_PATTERN_CP2520_2,