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

[Golani, Mitulkumar Ajitkumar]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Suraj
> Kandpal
> Sent: 15 November 2024 21:31
> To: intel-xe at lists.freedesktop.org; intel-gfx at lists.freedesktop.org
> Cc: Govindapillai, Vinod <vinod.govindapillai at intel.com>; Nikula, Jani
> <jani.nikula at intel.com>; Kandpal, Suraj <suraj.kandpal at intel.com>
> Subject: [PATCH 1/6] drm/i915/wm: Initialize max_latency variable to
> appropriate value
> 
> 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.

I suggest not to combine your functional change with other refactoring. Rest other suggested changes from previous revision looks good.

> 
> Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
> ---
>  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;
>  	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;
> --
> 2.34.1