From: Taimur Hassan <Syed.Hassan@amd.com>
Date: Fri, 21 Oct 2022 14:54:42 +0000 (-0400)
Subject: drm/amd/display: Remove rate check from pixel rate divider update
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=14e1f089d5ee0519af0c646efbc3196d3e1674ba;p=linux.git

drm/amd/display: Remove rate check from pixel rate divider update

[Why]
This check is not needed, and can cause CRC mismatch.

[How]
Remove check and early exit from divider update.

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Tested-by: Mark Broadworth <mark.broadworth@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
index 1bd7e0f327d81..367cb6e6d074c 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c
@@ -97,7 +97,7 @@ static void dccg314_set_pixel_rate_div(
 	enum pixel_rate_div cur_k1 = PIXEL_RATE_DIV_NA, cur_k2 = PIXEL_RATE_DIV_NA;
 
 	dccg314_get_pixel_rate_div(dccg, otg_inst, &cur_k1, &cur_k2);
-	if (k1 == PIXEL_RATE_DIV_NA || k2 == PIXEL_RATE_DIV_NA || (k1 == cur_k1 && k2 == cur_k2))
+	if (k1 == cur_k1 && k2 == cur_k2)
 		return;
 
 	switch (otg_inst) {