drm/i915/tgl: Fix the read of the DDI that transcoder is attached to

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On TGL this register do not map directly to port, it was already
handled when setting it(TGL_TRANS_DDI_SELECT_PORT()) but not when
reading it.

To make it consisntent adding a macro for the older gens too.

v2:
Adding TGL_PORT_TRANS_DDI_SELECT() so all future users can reuse it
(Lucas)

v3:
Missed parentheses arround val (Jose)

v4:
Renamed TGL_PORT_TRANS_DDI_SELECT to TGL_TRANS_DDI_FUNC_CTL_VAL_TO_PORT
(Lucas)
Added TRANS_DDI_FUNC_CTL_VAL_TO_PORT (Lucas)

Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: 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/20190808004935.1787-2-jose.souza@intel.com

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This commit is contained in:

José Roberto de Souza 2019-08-07 17:49:35 -07:00

parent 6aa3bef15d

commit 9749a5b6c0

2 changed files with 4 additions and 3 deletions

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5

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

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2

drivers/gpu/drm/i915/i915_reg.h

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