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From 6a68f6c7463143c11ab2c6fb6c67c7ce13b1ed13 Mon Sep 17 00:00:00 2001
From: Hersen Wu <hersenxs.wu@amd.com>
Date: Wed, 9 Dec 2015 14:43:28 -0500
Subject: [PATCH 0602/1110] drm/amd/dal: add bpp from dc_stream for payload
calculation
Signed-off-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Harry Wentland<harry.wentland@amd.com>
---
.../gpu/drm/amd/dal/amdgpu_dm/amdgpu_dc_helpers.c | 33 +++++++++++++++++++---
1 file changed, 29 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dc_helpers.c b/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dc_helpers.c
index b388dee..87db164 100644
--- a/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dc_helpers.c
+++ b/drivers/gpu/drm/amd/dal/amdgpu_dm/amdgpu_dc_helpers.c
@@ -180,7 +180,7 @@ bool dc_helpers_dp_mst_write_payload_allocation_table(
int slots = 0;
bool ret;
int clock;
- int bpp;
+ int bpp = 0;
int pbn = 0;
uint8_t i;
uint8_t vcid = 0;
@@ -199,9 +199,34 @@ bool dc_helpers_dp_mst_write_payload_allocation_table(
mst_port = aconnector->port;
if (enable) {
- clock = crtc->state->mode.clock;
- /* TODO remove following hardcode value */
- bpp = 30;
+ clock = stream->timing.pix_clk_khz;
+
+ switch (stream->timing.display_color_depth) {
+
+ case COLOR_DEPTH_666:
+ bpp = 6;
+ break;
+ case COLOR_DEPTH_888:
+ bpp = 8;
+ break;
+ case COLOR_DEPTH_101010:
+ bpp = 10;
+ break;
+ case COLOR_DEPTH_121212:
+ bpp = 12;
+ break;
+ case COLOR_DEPTH_141414:
+ bpp = 14;
+ break;
+ case COLOR_DEPTH_161616:
+ bpp = 16;
+ break;
+ default:
+ ASSERT(bpp != 0);
+ break;
+ }
+
+ bpp = bpp * 3;
/* TODO need to know link rate */
--
2.7.4
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