diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4688-drm-amd-display-fix-dml20-min_dst_y_next_start-calcu.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4688-drm-amd-display-fix-dml20-min_dst_y_next_start-calcu.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4688-drm-amd-display-fix-dml20-min_dst_y_next_start-calcu.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4688-drm-amd-display-fix-dml20-min_dst_y_next_start-calcu.patch new file mode 100644 index 00000000..241017f7 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4688-drm-amd-display-fix-dml20-min_dst_y_next_start-calcu.patch @@ -0,0 +1,32 @@ +From 3203b77954977f6e42bd469ce6cf8bfaaa3d07d1 Mon Sep 17 00:00:00 2001 +From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Date: Fri, 8 Nov 2019 16:20:36 -0500 +Subject: [PATCH 4688/4736] drm/amd/display: fix dml20 min_dst_y_next_start + calculation + +Bring this calculation in line with HW programming guide. + +Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Leo Li <sunpeng.li@amd.com> +--- + .../gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c | 3 +-- + 1 file changed, 1 insertion(+), 2 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c +index 2c7455e22a65..9df24ececcec 100644 +--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c ++++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c +@@ -929,8 +929,7 @@ static void dml20_rq_dlg_get_dlg_params(struct display_mode_lib *mode_lib, + min_dst_y_ttu_vblank = min_ttu_vblank * pclk_freq_in_mhz / (double) htotal; + dlg_vblank_start = interlaced ? (vblank_start / 2) : vblank_start; + +- disp_dlg_regs->min_dst_y_next_start = (unsigned int) (((double) dlg_vblank_start +- + min_dst_y_ttu_vblank) * dml_pow(2, 2)); ++ disp_dlg_regs->min_dst_y_next_start = (unsigned int) ((double) dlg_vblank_start * dml_pow(2, 2)); + ASSERT(disp_dlg_regs->min_dst_y_next_start < (unsigned int) dml_pow(2, 18)); + + dml_print("DML_DLG: %s: min_dcfclk_mhz = %3.2f\n", +-- +2.17.1 + |