Re: [PATCH 1/6] drm/i915/wm: Initialize max_latency variable to appropriate value

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On Fri, 15 Nov 2024, Suraj Kandpal <suraj.kandpal@xxxxxxxxx> wrote:
> Initialize max_latency variable to LNL_PKG_C_LATENCY_MASK which helps
> to eliminate the else block and make the whole code a lot cleaner.
> While we are at it group the initialized variable together.
>
> Signed-off-by: Suraj Kandpal <suraj.kandpal@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/display/skl_watermark.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
> index 1a4c1fa24820..a49e8915346e 100644
> --- a/drivers/gpu/drm/i915/display/skl_watermark.c
> +++ b/drivers/gpu/drm/i915/display/skl_watermark.c
> @@ -2857,9 +2857,8 @@ static int skl_wm_add_affected_planes(struct intel_atomic_state *state,
>  static void
>  skl_program_dpkgc_latency(struct drm_i915_private *i915, bool enable_dpkgc)
>  {
> -	u32 max_latency = 0;
> +	u32 max_latency = LNL_PKG_C_LATENCY_MASK, added_wake_time = 0;

Whoops. Please read your own commits through before sending.

BR,
Jani.

>  	u32 clear = 0, val = 0;
> -	u32 added_wake_time = 0;
>  
>  	if (DISPLAY_VER(i915) < 20)
>  		return;
> @@ -2870,9 +2869,6 @@ skl_program_dpkgc_latency(struct drm_i915_private *i915, bool enable_dpkgc)
>  			max_latency = LNL_PKG_C_LATENCY_MASK;
>  		added_wake_time = DSB_EXE_TIME +
>  			i915->display.sagv.block_time_us;
> -	} else {
> -		max_latency = LNL_PKG_C_LATENCY_MASK;
> -		added_wake_time = 0;
>  	}
>  
>  	clear |= LNL_ADDED_WAKE_TIME_MASK | LNL_PKG_C_LATENCY_MASK;

-- 
Jani Nikula, Intel



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