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

Qingqing Zhuo qingqing.zhuo at amd.com
Thu Oct 6 21:26:47 UTC 2022


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>
---
 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;
 	}
-- 
2.25.1



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