[RESEND 3/6] drm/i915/wm: DG2 doesn't have dram info to look up wm_lv_0_adjust_needed

[Govindapillai, Vinod]

On Tue, 2025-05-27 at 12:25 +0300, Jani Nikula wrote:
> There's no dram info on DG2 that we could use. The struct dram_info is
> all zero on it, but be explicit about this.
> 
> Signed-off-by: Jani Nikula <jani.nikula at intel.com>
> ---
>  drivers/gpu/drm/i915/display/skl_watermark.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c
> b/drivers/gpu/drm/i915/display/skl_watermark.c
> index f5600f4b7772..817939f6d4dd 100644
> --- a/drivers/gpu/drm/i915/display/skl_watermark.c
> +++ b/drivers/gpu/drm/i915/display/skl_watermark.c
> @@ -3251,7 +3251,7 @@ adjust_wm_latency(struct intel_display *display,
>  	 * any underrun. If not able to get Dimm info assume 16GB dimm
>  	 * to avoid any underrun.
>  	 */
> -	if (dram_info->wm_lv_0_adjust_needed)
> +	if (!display->platform.dg2 && dram_info->wm_lv_0_adjust_needed)

For Disp version >= 12, wm_lv_0_adjust_needed is hard coded to false. So I don't think this explicit
DG2 check is needed here.. 

with that,

Reviewed-by: Vinod Govindapillai <vinod.govindapillai at intel.com>



>  		wm[0] += 1;
>  }
>