Re: [PATCH] drm/i915/psr: remove unused lines_to_wait vbt info

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On Wed, 2022-01-12 at 13:27 +0200, Jani Nikula wrote:
> The lines_to_wait info from VBT is never used. Remove.
> 

Reviewed-by: José Roberto de Souza <jose.souza@xxxxxxxxx>

> Cc: José Roberto de Souza <jose.souza@xxxxxxxxx>
> Cc: Jouni Högander <jouni.hogander@xxxxxxxxx>
> Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> 
> ---
> 
> Not exactly a v2, but rather a replacement for [1].
> 
> [1] https://patchwork.freedesktop.org/patch/msgid/20220104085421.213793-1-jani.nikula@xxxxxxxxx
> ---
>  drivers/gpu/drm/i915/display/intel_bios.c | 20 --------------------
>  drivers/gpu/drm/i915/i915_drv.h           |  8 --------
>  2 files changed, 28 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c
> index c7a8d517ce81..262406c00e53 100644
> --- a/drivers/gpu/drm/i915/display/intel_bios.c
> +++ b/drivers/gpu/drm/i915/display/intel_bios.c
> @@ -905,26 +905,6 @@ parse_psr(struct drm_i915_private *i915, const struct bdb_header *bdb)
>  	i915->vbt.psr.idle_frames = psr_table->idle_frames < 0 ? 0 :
>  		psr_table->idle_frames > 15 ? 15 : psr_table->idle_frames;
>  
> -	switch (psr_table->lines_to_wait) {
> -	case 0:
> -		i915->vbt.psr.lines_to_wait = PSR_0_LINES_TO_WAIT;
> -		break;
> -	case 1:
> -		i915->vbt.psr.lines_to_wait = PSR_1_LINE_TO_WAIT;
> -		break;
> -	case 2:
> -		i915->vbt.psr.lines_to_wait = PSR_4_LINES_TO_WAIT;
> -		break;
> -	case 3:
> -		i915->vbt.psr.lines_to_wait = PSR_8_LINES_TO_WAIT;
> -		break;
> -	default:
> -		drm_dbg_kms(&i915->drm,
> -			    "VBT has unknown PSR lines to wait %u\n",
> -			    psr_table->lines_to_wait);
> -		break;
> -	}
> -
>  	/*
>  	 * New psr options 0=500us, 1=100us, 2=2500us, 3=0us
>  	 * Old decimal value is wake up time in multiples of 100 us.
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 6caec2eca8cd..890f1f6fbc49 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -514,13 +514,6 @@ i915_fence_timeout(const struct drm_i915_private *i915)
>  /* Amount of PSF GV points, BSpec precisely defines this */
>  #define I915_NUM_PSF_GV_POINTS 3
>  
> -enum psr_lines_to_wait {
> -	PSR_0_LINES_TO_WAIT = 0,
> -	PSR_1_LINE_TO_WAIT,
> -	PSR_4_LINES_TO_WAIT,
> -	PSR_8_LINES_TO_WAIT
> -};
> -
>  struct intel_vbt_data {
>  	/* bdb version */
>  	u16 version;
> @@ -560,7 +553,6 @@ struct intel_vbt_data {
>  		bool full_link;
>  		bool require_aux_wakeup;
>  		int idle_frames;
> -		enum psr_lines_to_wait lines_to_wait;
>  		int tp1_wakeup_time_us;
>  		int tp2_tp3_wakeup_time_us;
>  		int psr2_tp2_tp3_wakeup_time_us;





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