From 27fc64764e291bff1a73d212f22f47ec06b78530 Mon Sep 17 00:00:00 2001 From: Bhawanpreet Lakha Date: Tue, 11 Oct 2022 10:08:14 -0400 Subject: [PATCH] drm/amd/display: Change i2c speed for hdcp [why] HDCP 1.4 failed on SL8800 SW w/a test driver use. [how] slower down the HW i2c speed when used by HW i2c. Tested-by: Daniel Wheeler Reviewed-by: Aurabindo Pillai Reviewed-by: Rodrigo Siqueira Signed-off-by: Bhawanpreet Lakha Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c b/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c index b4d5076e124c..dc0b49506275 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn316/dcn316_resource.c @@ -1776,7 +1776,7 @@ static bool dcn316_resource_construct( pool->base.mpcc_count = pool->base.res_cap->num_timing_generator; dc->caps.max_downscale_ratio = 600; dc->caps.i2c_speed_in_khz = 100; - dc->caps.i2c_speed_in_khz_hdcp = 100; + dc->caps.i2c_speed_in_khz_hdcp = 5; /*1.5 w/a applied by default*/ dc->caps.max_cursor_size = 256; dc->caps.min_horizontal_blanking_period = 80; dc->caps.dmdata_alloc_size = 2048;