drm/i915/bios: Parse HOBL parameter
authorJosé Roberto de Souza <jose.souza@intel.com>
Wed, 8 Jul 2020 20:55:10 +0000 (13:55 -0700)
committerJosé Roberto de Souza <jose.souza@intel.com>
Thu, 9 Jul 2020 19:33:24 +0000 (12:33 -0700)
commitf615cb6a8a42c5497b88fbf152f791a1699de9aa
treee55adab169947013fbbcfb0964260c4139626b40
parentf0e86e0520977eda55324ae0e0505e2836fad633
drm/i915/bios: Parse HOBL parameter

HOBL means hours of battery life, it is a power-saving feature
were supported motherboards can use a special voltage swing table
that uses less power.

So here parsing the VBT to check if this feature is supported.

BSpec: 20150
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200708205512.21625-3-jose.souza@intel.com
drivers/gpu/drm/i915/display/intel_bios.c
drivers/gpu/drm/i915/display/intel_vbt_defs.h
drivers/gpu/drm/i915/i915_drv.h