From: Charlene Liu <Charlene.Liu@xxxxxxx> [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. this request: each acquired_i2c_engine setup the i2c speed needed. and set the I2c engine for HDCP use at release_engine. this covers SW using HW I2c engine and HDCP using HW I2c engine. for dmcu using HW I2c engine, needs add similar logic in dmcufw. Signed-off-by: Charlene Liu <Charlene.Liu@xxxxxxx> Reviewed-by: Chris Park <Chris.Park@xxxxxxx> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c | 1 + drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c index 0006d805b3b2..d15220a4eeb6 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c @@ -1759,6 +1759,7 @@ static bool dcn301_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 = 5; /*1.4 w/a enabled by default*/ dc->caps.max_cursor_size = 256; dc->caps.dmdata_alloc_size = 2048; dc->caps.max_slave_planes = 1; diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c index 765002e0ff93..15ffd8a21e4e 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c @@ -1306,6 +1306,7 @@ static bool dcn302_resource_construct( pool->mpcc_count = pool->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 = 5; /*1.4 w/a applied by derfault*/ dc->caps.max_cursor_size = 256; dc->caps.dmdata_alloc_size = 2048; -- 2.29.2 _______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
