]> git.baikalelectronics.ru Git - kernel.git/commit
drm/i915/icl+: Always use TPS2 or TPS3 when exiting PSR1
authorJosé Roberto de Souza <jose.souza@intel.com>
Tue, 12 Mar 2019 19:57:43 +0000 (12:57 -0700)
committerJosé Roberto de Souza <jose.souza@intel.com>
Wed, 13 Mar 2019 21:20:21 +0000 (14:20 -0700)
commit716fb4b63c7b8b88c24b0a83998b8ea6182c0ab1
tree7a982780d00ae8759c2dfb9d594df5eee5e3d428
parent5e40d9ccc9e6fa116b474a4ed7e3c74f3a1b63e0
drm/i915/icl+: Always use TPS2 or TPS3 when exiting PSR1

When any other value than EDP_PSR_TP4_TIME_0US is set, TPS1 and TPS4
will be used to do the link training when exiting PSR1.
Happily the eDP panels tested so far was able to sync with source
even without HBR3/TPS4 support but let use the right training
pattern.

TPS4 support was added to PSR1 registers because HBR3/PSR
specification was not closed when ICL was freezed so if HBR3 was
supported by PSR, ICL would already be ready but it was not added to
specification so lets always disable TPS4.

v3: Missed ";" SPANK SPANK SPANK!!!

BSpec: 17524

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190312195743.8829-3-jose.souza@intel.com
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_psr.c