drm/amd/pm: fix smu i2c data read risk

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commit d934e537c1 upstream.

the smu driver_table is used for all types of smu
tables data transcation (e.g: PPtable, Metrics, i2c, Ecc..).

it is necessary to hold this lock to avoiding data tampering
during the i2c read operation.

Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Yang Wang 2023-06-20 17:05:25 +08:00 • committed by Greg Kroah-Hartman

parent 478e83b969

commit 985560bdbf

6 changed files with 6 additions and 6 deletions

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2

drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c

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drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c

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drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c

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drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c

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drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c

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drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c

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