[Intel-gfx] [PATCH 2/4] drm/i915/dp: Switch to using the DRM function for reading DP link status

[Chris Wilson]

On Wed, Aug 03, 2016 at 08:07:39PM -0700, Dhinakaran Pandiyan wrote:
> Since a DRM function that reads link DP link status is available, let's
> use that instead of the i915 clone.
> 
> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_dp.c               | 15 +++------------
>  drivers/gpu/drm/i915/intel_dp_link_training.c | 11 ++++++++---
>  drivers/gpu/drm/i915/intel_drv.h              |  2 --
>  3 files changed, 11 insertions(+), 17 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 3ca33bd..c5c0201 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -2863,17 +2863,6 @@ static void chv_dp_post_pll_disable(struct intel_encoder *encoder)
>  	chv_phy_post_pll_disable(encoder);
>  }
>  
> -/*
> - * Fetch AUX CH registers 0x202 - 0x207 which contain
> - * link status information
> - */
> -bool
> -intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE])
> -{
> -	return drm_dp_dpcd_read(&intel_dp->aux, DP_LANE0_1_STATUS, link_status,
> -				DP_LINK_STATUS_SIZE) == DP_LINK_STATUS_SIZE;

Or just wrap it here since you add the same code everywhere, and don't
care what the invalid length actually is.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre