Commit 5d666496 authored by Ahmed, Muhammad's avatar Ahmed, Muhammad Committed by Alex Deucher
Browse files

drm/amd/display: guard write a 0 post_divider value to HW 



[why]
post_divider_value should not be 0.

Reviewed-by: default avatarCharlene Liu <charlene.liu@amd.com>
Signed-off-by: default avatarAhmed, Muhammad <Ahmed.Ahmed@amd.com>
Signed-off-by: default avatarZaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 3d054c40

drivers/gpu/drm/amd/display/dc/dccg/dcn35/dcn35_dccg.c

+2 −1
Original line number Diff line number Diff line
@@ -1082,6 +1082,7 @@ static void dccg35_trigger_dio_fifo_resync(struct dccg *dccg) 
	uint32_t dispclk_rdivider_value = 0;



	REG_GET(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_RDIVIDER, &dispclk_rdivider_value);

	if (dispclk_rdivider_value != 0)

		REG_UPDATE(DENTIST_DISPCLK_CNTL, DENTIST_DISPCLK_WDIVIDER, dispclk_rdivider_value);

}