From: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Date: Tue, 14 Mar 2017 11:16:11 -0400
Subject: drm/amd/display: fix bw calc internal initialization error
Git-commit: faddcb360c04f007966ffe8eabe3786655ba6a1a
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -1341,12 +1341,12 @@ static void calculate_bandwidth(
/*initialize variables*/
number_of_displays_enabled = 0;
number_of_displays_enabled_with_margin = 0;
- for (k = 0; k < maximum_number_of_surfaces; k++) {
+ for (k = 0; k <= maximum_number_of_surfaces - 1; k++) {
if (data->enable[k]) {
number_of_displays_enabled = number_of_displays_enabled + 1;
}
+ data->display_pstate_change_enable[k] = 0;
}
- data->display_pstate_change_enable[maximum_number_of_surfaces - 1] = 0;
for (i = 0; i <= 2; i++) {
for (j = 0; j <= 7; j++) {
data->min_dram_speed_change_margin[i][j] = bw_int_to_fixed(9999);