diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0535-drm-amd-display-handle-max_vstartup-larger-than-vbla.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0535-drm-amd-display-handle-max_vstartup-larger-than-vbla.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0535-drm-amd-display-handle-max_vstartup-larger-than-vbla.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0535-drm-amd-display-handle-max_vstartup-larger-than-vbla.patch new file mode 100644 index 00000000..d96dfd52 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0535-drm-amd-display-handle-max_vstartup-larger-than-vbla.patch @@ -0,0 +1,49 @@ +From 2278c5926469a988509c3376f82250282b5eb99f Mon Sep 17 00:00:00 2001 +From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Date: Fri, 14 Sep 2018 15:32:33 -0400 +Subject: [PATCH 0535/2940] drm/amd/display: handle max_vstartup larger than + vblank_end + +When vstartup is larger than vblank end we need to set v_fp2 +to allow for this early start + +Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +--- + drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c | 11 +++++------ + 1 file changed, 5 insertions(+), 6 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c +index 54626682bab2..47f80e0e8be8 100644 +--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c ++++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_optc.c +@@ -274,10 +274,12 @@ void optc1_program_timing( + * program the reg for interrupt postition. + */ + vertical_line_start = asic_blank_end - optc->dlg_otg_param.vstartup_start + 1; +- if (vertical_line_start < 0) { +- ASSERT(0); ++ v_fp2 = 0; ++ if (vertical_line_start < 0) ++ v_fp2 = -vertical_line_start; ++ if (vertical_line_start < 0) + vertical_line_start = 0; +- } ++ + REG_SET(OTG_VERTICAL_INTERRUPT2_POSITION, 0, + OTG_VERTICAL_INTERRUPT2_LINE_START, vertical_line_start); + +@@ -296,9 +298,6 @@ void optc1_program_timing( + if (patched_crtc_timing.flags.INTERLACE == 1) + field_num = 1; + } +- v_fp2 = 0; +- if (optc->dlg_otg_param.vstartup_start > asic_blank_end) +- v_fp2 = optc->dlg_otg_param.vstartup_start > asic_blank_end; + + /* Interlace */ + if (patched_crtc_timing.flags.INTERLACE == 1) { +-- +2.17.1 + |