drm/i915/mtl: Power up TCSS

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Add register writes to enable powering up Type-C subsystem i.e. TCSS.
For MeteorLake we need to request TCSS to power up and check the TCSS
power state after 500 us.

In addition, for PICA we need to set/clear the Type-C PHY ownnership
bit when Type-C device is connected/disconnected.

Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230428095433.4109054-11-mika.kahola@intel.com

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This commit is contained in:

Mika Kahola 2023-04-28 12:54:30 +03:00 • committed by Radhakrishna Sripada

parent c0f3faaf93

commit 6f0423b06a

5 changed files with 216 additions and 9 deletions

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19

drivers/gpu/drm/i915/display/intel_cx0_phy.c

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4

drivers/gpu/drm/i915/display/intel_cx0_phy.h

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1

drivers/gpu/drm/i915/display/intel_ddi.c

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2

drivers/gpu/drm/i915/display/intel_display.c

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201

drivers/gpu/drm/i915/display/intel_tc.c

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