[Intel-gfx] [PATCH 0/2] drm/i915: initialize backlight pwm from vbt if needed

Clint Taylor clinton.a.taylor at intel.com
Wed Aug 26 14:30:05 PDT 2015


On 08/26/2015 12:58 AM, Jani Nikula wrote:
> This is a rebase of [1] and originally [2]. I haven't tried this in a
> year and I have no idea if it works on SKL, and it's not implemented for
> BXT. However there's renewed interest, so here's the rebase.

Renewed interest as an ODM has been reporting that BSW is producing an 
incorrect PWM frequency. This is due to a CHV documentation issue that 
states the S0IX clock is 25MHz when it's actually only 19.2MHz.

>
> BR,
> Jani.
>
> [1] http://mid.gmane.org/cover.1431003197.git.jani.nikula@intel.com
> [2] http://mid.gmane.org/cover.1389109881.git.jani.nikula@intel.com
>
> Jani Nikula (2):
>    drm/i915: move intel_hrawclk() to intel_display.c
>    drm/i915: initialize backlight max from VBT
>
>   drivers/gpu/drm/i915/i915_drv.h      |   2 +
>   drivers/gpu/drm/i915/i915_reg.h      |   1 +
>   drivers/gpu/drm/i915/intel_display.c |  33 ++++++++
>   drivers/gpu/drm/i915/intel_dp.c      |  34 --------
>   drivers/gpu/drm/i915/intel_drv.h     |   1 +
>   drivers/gpu/drm/i915/intel_panel.c   | 160 +++++++++++++++++++++++++++++++++--
>   6 files changed, 190 insertions(+), 41 deletions(-)
>



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