diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0283-drm-amd-display-Fixed-bandwidth-calculation-error-wh.patch')
-rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0283-drm-amd-display-Fixed-bandwidth-calculation-error-wh.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0283-drm-amd-display-Fixed-bandwidth-calculation-error-wh.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0283-drm-amd-display-Fixed-bandwidth-calculation-error-wh.patch new file mode 100644 index 00000000..e7c41363 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.14.71/0283-drm-amd-display-Fixed-bandwidth-calculation-error-wh.patch @@ -0,0 +1,47 @@ +From 34b6b9edb0dbe718c93463c7b397b6e12abb3d85 Mon Sep 17 00:00:00 2001 +From: Logatharshan Thothiralingam <logatharshan.thothiralingam@amd.com> +Date: Thu, 9 Mar 2017 11:37:26 -0500 +Subject: [PATCH 0283/4131] drm/amd/display: Fixed bandwidth calculation error + when converting fractions + +[Problem] +VSR greyed out + +[Root cause] +When converting fractions, we were using the integer function, which let to +a large display clock and the view was not supported + +[Solution] +Change the integer to fraction functions + +Signed-off-by: Logatharshan Thothiralingam <logatharshan.thothiralingam@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c +index c855e49..e477943 100644 +--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c ++++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c +@@ -796,11 +796,11 @@ static void calculate_bandwidth( + } + else if (bw_leq(data->vsr[i], bw_int_to_fixed(1))) { + data->lb_lines_in_per_line_out_in_middle_of_frame[i] = bw_int_to_fixed(1); +- } +- else if (bw_leq(data->vsr[i], bw_int_to_fixed(4 / 3))) { ++ } else if (bw_leq(data->vsr[i], ++ bw_frc_to_fixed(4, 3))) { + data->lb_lines_in_per_line_out_in_middle_of_frame[i] = bw_div(bw_int_to_fixed(4), bw_int_to_fixed(3)); +- } +- else if (bw_leq(data->vsr[i], bw_int_to_fixed(6 / 4))) { ++ } else if (bw_leq(data->vsr[i], ++ bw_frc_to_fixed(6, 4))) { + data->lb_lines_in_per_line_out_in_middle_of_frame[i] = bw_div(bw_int_to_fixed(6), bw_int_to_fixed(4)); + } + else if (bw_leq(data->vsr[i], bw_int_to_fixed(2))) { +-- +2.7.4 + |