Re: [PATCH 07/22] drm/i915: Make intel_dp_source_supports_hbr2() take an intel_dp pointer

["Thulasimani, Sivakumar" <sivakumar.thulasimani@intel.com>]

Reviewed-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>

On 10/23/2015 3:31 PM, Ander Conselvan de Oliveira wrote:
> The function name implies it should get intel_dp, and it mostly used
> where there is an intel_dp in the context.
>
> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
> ---
>   drivers/gpu/drm/i915/intel_dp.c               | 19 +++++++++++--------
>   drivers/gpu/drm/i915/intel_dp_link_training.c |  4 +---
>   drivers/gpu/drm/i915/intel_drv.h              |  2 +-
>   3 files changed, 13 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
> index 5b04ade..5344de4 100644
> --- a/drivers/gpu/drm/i915/intel_dp.c
> +++ b/drivers/gpu/drm/i915/intel_dp.c
> @@ -1189,8 +1189,11 @@ intel_dp_sink_rates(struct intel_dp *intel_dp, const int **sink_rates)
>   	return (intel_dp_max_link_bw(intel_dp) >> 3) + 1;
>   }
>   
> -bool intel_dp_source_supports_hbr2(struct drm_device *dev)
> +bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp)
>   {
> +	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> +	struct drm_device *dev = dig_port->base.base.dev;
> +
>   	/* WaDisableHBR2:skl */
>   	if (IS_SKL_REVID(dev, 0, SKL_REVID_B0))
>   		return false;
> @@ -1203,8 +1206,10 @@ bool intel_dp_source_supports_hbr2(struct drm_device *dev)
>   }
>   
>   static int
> -intel_dp_source_rates(struct drm_device *dev, const int **source_rates)
> +intel_dp_source_rates(struct intel_dp *intel_dp, const int **source_rates)
>   {
> +	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> +	struct drm_device *dev = dig_port->base.base.dev;
>   	int size;
>   
>   	if (IS_BROXTON(dev)) {
> @@ -1219,7 +1224,7 @@ intel_dp_source_rates(struct drm_device *dev, const int **source_rates)
>   	}
>   
>   	/* This depends on the fact that 5.4 is last value in the array */
> -	if (!intel_dp_source_supports_hbr2(dev))
> +	if (!intel_dp_source_supports_hbr2(intel_dp))
>   		size--;
>   
>   	return size;
> @@ -1284,12 +1289,11 @@ static int intersect_rates(const int *source_rates, int source_len,
>   static int intel_dp_common_rates(struct intel_dp *intel_dp,
>   				 int *common_rates)
>   {
> -	struct drm_device *dev = intel_dp_to_dev(intel_dp);
>   	const int *source_rates, *sink_rates;
>   	int source_len, sink_len;
>   
>   	sink_len = intel_dp_sink_rates(intel_dp, &sink_rates);
> -	source_len = intel_dp_source_rates(dev, &source_rates);
> +	source_len = intel_dp_source_rates(intel_dp, &source_rates);
>   
>   	return intersect_rates(source_rates, source_len,
>   			       sink_rates, sink_len,
> @@ -1314,7 +1318,6 @@ static void snprintf_int_array(char *str, size_t len,
>   
>   static void intel_dp_print_rates(struct intel_dp *intel_dp)
>   {
> -	struct drm_device *dev = intel_dp_to_dev(intel_dp);
>   	const int *source_rates, *sink_rates;
>   	int source_len, sink_len, common_len;
>   	int common_rates[DP_MAX_SUPPORTED_RATES];
> @@ -1323,7 +1326,7 @@ static void intel_dp_print_rates(struct intel_dp *intel_dp)
>   	if ((drm_debug & DRM_UT_KMS) == 0)
>   		return;
>   
> -	source_len = intel_dp_source_rates(dev, &source_rates);
> +	source_len = intel_dp_source_rates(intel_dp, &source_rates);
>   	snprintf_int_array(str, sizeof(str), source_rates, source_len);
>   	DRM_DEBUG_KMS("source rates: %s\n", str);
>   
> @@ -3711,7 +3714,7 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
>   	}
>   
>   	DRM_DEBUG_KMS("Display Port TPS3 support: source %s, sink %s\n",
> -		      yesno(intel_dp_source_supports_hbr2(dev)),
> +		      yesno(intel_dp_source_supports_hbr2(intel_dp)),
>   		      yesno(drm_dp_tps3_supported(intel_dp->dpcd)));
>   
>   	/* Intermediate frequency support */
> diff --git a/drivers/gpu/drm/i915/intel_dp_link_training.c b/drivers/gpu/drm/i915/intel_dp_link_training.c
> index bb036d5..8888793 100644
> --- a/drivers/gpu/drm/i915/intel_dp_link_training.c
> +++ b/drivers/gpu/drm/i915/intel_dp_link_training.c
> @@ -218,8 +218,6 @@ intel_dp_link_training_clock_recovery(struct intel_dp *intel_dp)
>   static void
>   intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
>   {
> -	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
> -	struct drm_device *dev = dig_port->base.base.dev;
>   	bool channel_eq = false;
>   	int tries, cr_tries;
>   	uint32_t training_pattern = DP_TRAINING_PATTERN_2;
> @@ -233,7 +231,7 @@ intel_dp_link_training_channel_equalization(struct intel_dp *intel_dp)
>   	 * Due to WaDisableHBR2 SKL < B0 is the only exception where TPS3 is
>   	 * supported but still not enabled.
>   	 */
> -	if (intel_dp_source_supports_hbr2(dev) &&
> +	if (intel_dp_source_supports_hbr2(intel_dp) &&
>   	    drm_dp_tps3_supported(intel_dp->dpcd))
>   		training_pattern = DP_TRAINING_PATTERN_3;
>   	else if (intel_dp->link_rate == 540000)
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 1c2a8ed..3021e40 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1252,7 +1252,7 @@ uint8_t
>   intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
>   void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
>   			   uint8_t *link_bw, uint8_t *rate_select);
> -bool intel_dp_source_supports_hbr2(struct drm_device *dev);
> +bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
>   bool
>   intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
>   

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