diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2471-drm-amd-display-skip-dsc-config-for-navi10-bring-up.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2471-drm-amd-display-skip-dsc-config-for-navi10-bring-up.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2471-drm-amd-display-skip-dsc-config-for-navi10-bring-up.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2471-drm-amd-display-skip-dsc-config-for-navi10-bring-up.patch new file mode 100644 index 00000000..64e43725 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/2471-drm-amd-display-skip-dsc-config-for-navi10-bring-up.patch @@ -0,0 +1,52 @@ +From 1611b079be1f87752bad7b32de52a66e741ef6e9 Mon Sep 17 00:00:00 2001 +From: hersen wu <hersenxs.wu@amd.com> +Date: Wed, 13 Mar 2019 16:21:26 -0400 +Subject: [PATCH 2471/2940] drm/amd/display: skip dsc config for navi10 bring + up + +[why] we meet a bug when program dsc register even dsc mode is not +enabled. disable dsc config for now. we will re-visit this issue. + +Signed-off-by: hersen wu <hersenxs.wu@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c | 9 +++++++++ + drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +- + 2 files changed, 10 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c +index 724b5a9e47d0..34f5a7d671b2 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_optc.c +@@ -191,6 +191,15 @@ void optc2_set_dsc_config(struct timing_generator *optc, + uint32_t dsc_slice_width) + { + struct optc *optc1 = DCN10TG_FROM_TG(optc); ++ uint32_t data_format = 0; ++ /* skip if dsc mode is not changed */ ++ data_format = dm_read_reg(CTX, REG(OPTC_DATA_FORMAT_CONTROL)); ++ ++ data_format = data_format & 0x30; /* bit5:4 */ ++ data_format = data_format >> 4; ++ ++ if (data_format == dsc_mode) ++ return; + + REG_UPDATE(OPTC_DATA_FORMAT_CONTROL, + OPTC_DSC_MODE, dsc_mode); +diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +index c4fa0b9e7138..e2a6e80013f3 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c +@@ -670,7 +670,7 @@ static const struct dc_debug_options debug_defaults_drv = { + .max_downscale_src_width = 5120,/*upto 5K*/ + .disable_pplib_wm_range = false, + .scl_reset_length10 = true, +- .sanity_checks = true, ++ .sanity_checks = false, + .disable_tri_buf = true, + }; + +-- +2.17.1 + |