[Intel-gfx] [PATCH v3 0/6] Enchancement to intel_dp_aux_backlight driver
Puthikorn Voravootivat
puthik at chromium.org
Wed Mar 15 23:41:05 UTC 2017
From: Puthikorn Voravootivat <puthik at google.com>
This patch set contain 6 patches.
- First two patches allow enable DPCD backlight control when panel
can also do that via PWM pin and fix the usage of enable register.
- Next patch adds enable DBC by default
- Next patch makes the driver restore last brightness level after
turning display off and on.
- Last two patches set the PWM freqency to match data in panel vbt.
Change log:
v2:
- Drop PWM frequency patch
- Addess suggestion from Jani Nikula
v3:
- Add new implementation of PWM frequency patch
Puthikorn Voravootivat (6):
drm/i915: Add DPCD prefered mode for backlight control
drm/i915: Correctly enable blacklight adjustment via DPCD
drm/i915: Support dynamic backlight via DPCD register
drm/i915: Store brightness level in aux backlight driver
drm: Add definition for eDP backlight frequency
drm/i915: Set PWM divider to match desired frequency in vbt
drivers/gpu/drm/i915/i915_params.c | 6 +-
drivers/gpu/drm/i915/i915_params.h | 2 +-
drivers/gpu/drm/i915/intel_dp_aux_backlight.c | 141 +++++++++++++++++++++++---
include/drm/drm_dp_helper.h | 2 +
4 files changed, 131 insertions(+), 20 deletions(-)
--
2.12.0.367.g23dc2f6d3c-goog
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