From 2e32c26f02ca9483b1e8c905e1678ab1a32b76af Mon Sep 17 00:00:00 2001
From: Alvin Lee <Alvin.Lee2@amd.com>
Date: Wed, 29 Jun 2022 12:35:12 -0400
Subject: drm/amd/display: Fix watermark calculation
Git-commit: 9799702360d51a714e888fef4ab5fb9123dfb41f
Patch-mainline: v6.1-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
Watermark calculation was incorrect due to missing brackets.
Fixes: 85f4bc0c333c ("drm/amd/display: Add SubVP required code")
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
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;
}
--
2.38.1