drm/i915/tgl: Finish modular FIA support on registers

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If platform supports and has modular FIA is enabled, the registers
bits also change, example: reading TC3 registers with modular FIA
enabled, driver should read from FIA2 but with TC1 bits offsets.

It is described in BSpec 50231 for DFLEXDPSP, other registers don't
have the BSpec description but testing in real hardware have proven
that it had moved for all other registers too.

v2:
- Caching index in tc_phy_fia_idx, instead of calculate it each time

v3:
- Setting tc_phy_fia and tc_phy_fia_idx in the same function

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190920205810.211048-3-jose.souza@intel.com

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This commit is contained in:

José Roberto de Souza 2019-09-20 13:58:06 -07:00

parent 6171e58b1f

commit 31d9ae9d73

3 changed files with 53 additions and 48 deletions

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1

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

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70

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

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28

drivers/gpu/drm/i915/i915_reg.h

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