drm/i915/pxp: On MTL, KCR enabling doesn't wait on tee component

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On legacy platforms, KCR HW enabling is done at the time the mei
component interface is bound. It's also disabled during unbind.
However, for MTL onwards, we don't depend on a tee component
to start sending GSC-CS firmware messages.

Thus, immediately enable (or disable) KCR HW on PXP's init,
fini and resume.

Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511231738.1077674-8-alan.previn.teres.alexis@intel.com

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Alan Previn 2023-05-11 16:17:37 -07:00 • committed by Radhakrishna Sripada

parent d1da138f24

commit 9e134ed720

2 changed files with 16 additions and 2 deletions

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15

drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c

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3

drivers/gpu/drm/i915/pxp/intel_pxp_pm.c

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