From 1e98478bcdc8327eccf955a9e6486400480af0f2 Mon Sep 17 00:00:00 2001 From: hersen wu Date: Wed, 13 Mar 2019 16:25:37 -0400 Subject: [PATCH 2472/2940] drm/amd/display: navi10 bring up skip dsc encoder config Signed-off-by: hersen wu Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c index c3c218805eb1..130b01801a26 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_stream_encoder.c @@ -286,6 +286,14 @@ static void enc2_dp_set_dsc_config(struct stream_encoder *enc, uint8_t *dsc_packed_pps) { struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); + uint32_t dsc_value = 0; + + dsc_value = REG_READ(DP_DSC_CNTL); + + /* dsc disable skip */ + if ((dsc_value & 0x3) == 0x0) + return; + REG_UPDATE_2(DP_DSC_CNTL, DP_DSC_MODE, dsc_mode, -- 2.17.1