[20/23] drm/amd/display: Fix watermark calculation

[Limonciello, Mario]

On 10/6/2022 16:26, Qingqing Zhuo wrote:
> From: Alvin Lee <Alvin.Lee2 at amd.com>
> 
> Watermark calculation was incorrect
> due to missing brackets.
> 
> Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira at amd.com>
> Acked-by: Qingqing Zhuo <qingqing.zhuo at amd.com>
> Signed-off-by: Alvin Lee <Alvin.Lee2 at amd.com>

This just landed upstream for 6.0 and is a trivial fix for what the 
intention was, it should go 6.0.y too.

Cc: stable at vger.kernel.org # 6.0
Fixes: 85f4bc0c333c ("drm/amd/display: Add SubVP required code")

> ---
>   drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
> index bbde635c56fc..0541e87e4f38 100644
> --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
> +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
> @@ -781,7 +781,7 @@ void dc_dmub_setup_subvp_dmub_command(struct dc *dc,
>   		// Store the original watermark value for this SubVP config so we can lower it when the
>   		// MCLK switch starts
>   		wm_val_refclk = context->bw_ctx.bw.dcn.watermarks.a.cstate_pstate.pstate_change_ns *
> -				dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000 / 1000;
> +				(dc->res_pool->ref_clocks.dchub_ref_clock_inKhz / 1000) / 1000;
>   
>   		cmd.fw_assisted_mclk_switch_v2.config_data.watermark_a_cache = wm_val_refclk < 0xFFFF ? wm_val_refclk : 0xFFFF;
>   	}