amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus

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v2 : change condition to apply to all chips after NAVI10

Writing to dcefclk causes the gpu to become unresponsive, and requires a reboot.
Patch prevents user from successfully writing to file pp_dpm_dcefclk on parts
NAVI10 and newer, and gives better user feedback that this operation is not allowed.

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Darren Powell 2021-04-07 18:40:34 -04:00 • committed by Alex Deucher

parent 51ec699275

commit ede14a1b32

1 changed files with 8 additions and 0 deletions

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drivers/gpu/drm/amd/pm/amdgpu_pm.c

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