[PATCH 6.6 382/386] drm/amd/display: Revert Avoid overflow assignment

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



6.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Gabe Teeger <Gabe.Teeger@xxxxxxx>

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@xxxxxxx>
Signed-off-by: Gabe Teeger <Gabe.Teeger@xxxxxxx>
Signed-off-by: Wayne Lin <wayne.lin@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/display/dc/dc_dp_types.h                  |    2 +-
 drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c |    3 +--
 drivers/gpu/drm/amd/display/include/dpcd_defs.h               |    1 -
 3 files changed, 2 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
@@ -721,7 +721,7 @@ 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];
--- a/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
+++ b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
@@ -849,8 +849,7 @@ 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));
--- a/drivers/gpu/drm/amd/display/include/dpcd_defs.h
+++ b/drivers/gpu/drm/amd/display/include/dpcd_defs.h
@@ -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,






[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux