Re: [PATCH v2 10/10] drm/i915: Move VLV HDMI lane reset work around logic to intel_dpio_phy.c

[Jim Bride <jim.bride@linux.intel.com>]

On Wed, Apr 13, 2016 at 08:47:53PM +0300, Ander Conselvan de Oliveira wrote:
> This moves the last dpio phy specific code from the encoders to the phy
> specific file.
> 
> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>

Reviewed-by: Jim Bride <jim.bride@linux.intel.com>

> ---
>  drivers/gpu/drm/i915/i915_drv.h       |  1 +
>  drivers/gpu/drm/i915/intel_dpio_phy.c | 15 +++++++++++++++
>  drivers/gpu/drm/i915/intel_hdmi.c     | 12 +-----------
>  3 files changed, 17 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index fad8ab2..1c9b1db 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -3570,6 +3570,7 @@ void vlv_set_phy_signal_level(struct intel_encoder *encoder,
>  			      u32 uniqtranscale_reg_value, u32 tx3_demph);
>  void vlv_phy_pre_pll_enable(struct intel_encoder *encoder);
>  void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder);
> +void vlv_phy_reset_lanes(struct intel_encoder *encoder);
>  
>  int intel_gpu_freq(struct drm_i915_private *dev_priv, int val);
>  int intel_freq_opcode(struct drm_i915_private *dev_priv, int val);
> diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c
> index 4e1ce3a..9e1faaf 100644
> --- a/drivers/gpu/drm/i915/intel_dpio_phy.c
> +++ b/drivers/gpu/drm/i915/intel_dpio_phy.c
> @@ -453,3 +453,18 @@ void vlv_phy_pre_encoder_enable(struct intel_encoder *encoder)
>  
>  	mutex_unlock(&dev_priv->sb_lock);
>  }
> +
> +void vlv_phy_reset_lanes(struct intel_encoder *encoder)
> +{
> +	struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
> +	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
> +	struct intel_crtc *intel_crtc =
> +		to_intel_crtc(encoder->base.crtc);
> +	enum dpio_channel port = vlv_dport_to_channel(dport);
> +	int pipe = intel_crtc->pipe;
> +
> +	mutex_lock(&dev_priv->sb_lock);
> +	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), 0x00000000);
> +	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), 0x00e00060);
> +	mutex_unlock(&dev_priv->sb_lock);
> +}
> diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
> index 3794a54..07500aa 100644
> --- a/drivers/gpu/drm/i915/intel_hdmi.c
> +++ b/drivers/gpu/drm/i915/intel_hdmi.c
> @@ -1623,18 +1623,8 @@ static void chv_hdmi_post_pll_disable(struct intel_encoder *encoder)
>  
>  static void vlv_hdmi_post_disable(struct intel_encoder *encoder)
>  {
> -	struct intel_digital_port *dport = enc_to_dig_port(&encoder->base);
> -	struct drm_i915_private *dev_priv = encoder->base.dev->dev_private;
> -	struct intel_crtc *intel_crtc =
> -		to_intel_crtc(encoder->base.crtc);
> -	enum dpio_channel port = vlv_dport_to_channel(dport);
> -	int pipe = intel_crtc->pipe;
> -
>  	/* Reset lanes to avoid HDMI flicker (VLV w/a) */
> -	mutex_lock(&dev_priv->sb_lock);
> -	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), 0x00000000);
> -	vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW1(port), 0x00e00060);
> -	mutex_unlock(&dev_priv->sb_lock);
> +	vlv_phy_reset_lanes(encoder);
>  }
>  
>  static void chv_hdmi_post_disable(struct intel_encoder *encoder)
> -- 
> 2.4.11
> 
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