[PATCH 06/18] drm/amd/display: Remove rate check from pixel rate divider update

Alex Hung alex.hung at amd.com
Thu Oct 27 18:35:31 UTC 2022


From: Taimur Hassan <Syed.Hassan at amd.com>

[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 at amd.com>
Acked-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn314/dcn314_dccg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 1bd7e0f327d8..367cb6e6d074 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) {
-- 
2.38.1



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