Attachment 142278 Details for Bug 108542 – 0001-Fix-unsigned-short-unsigned-long-mixup-for-usSymCloc.patch

[patch] 0001-Fix-unsigned-short-unsigned-long-mixup-for-usSymCloc.patch

0001-Fix-unsigned-short-unsigned-long-mixup-for-usSymCloc.patch (text/plain), 1.47 KB, created by Nicholas Kazlauskas on 2018-10-30 16:31:00 UTC

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Creator: Nicholas Kazlauskas

Created: 2018-10-30 16:31:00 UTC

Size: 1.47 KB

patch

obsolete

>From fbd4319f9a96eaa0fb7b7e0c1bc4cf0638b625d0 Mon Sep 17 00:00:00 2001
>From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
>Date: Mon, 29 Oct 2018 16:33:45 -0400
>Subject: [PATCH] Fix unsigned short/unsigned long mixup for usSymClock over
> HDMI
>
>---
> drivers/gpu/drm/amd/display/dc/bios/command_table.c | 11 +++++------
> 1 file changed, 5 insertions(+), 6 deletions(-)
>
>diff --git a/drivers/gpu/drm/amd/display/dc/bios/command_table.c b/drivers/gpu/drm/amd/display/dc/bios/command_table.c
>index 2bd7cd97e00d..0a353a815999 100644
>--- a/drivers/gpu/drm/amd/display/dc/bios/command_table.c
>+++ b/drivers/gpu/drm/amd/display/dc/bios/command_table.c
>@@ -809,18 +809,17 @@ static enum bp_result transmitter_control_v1_5(
> 	 * LVDS mode: usPixelClock = pixel clock
> 	 */
> 	if  (cntl->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
>+		uint32_t sym_clock = le16_to_cpu(cntl->pixel_clock / 10);
>+
> 		switch (cntl->color_depth) {
> 		case COLOR_DEPTH_101010:
>-			params.usSymClock =
>-				cpu_to_le16((le16_to_cpu(params.usSymClock) * 30) / 24);
>+			params.usSymClock = cpu_to_le16((sym_clock * 30) / 24);
> 			break;
> 		case COLOR_DEPTH_121212:
>-			params.usSymClock =
>-				cpu_to_le16((le16_to_cpu(params.usSymClock) * 36) / 24);
>+			params.usSymClock = cpu_to_le16((sym_clock * 36) / 24);
> 			break;
> 		case COLOR_DEPTH_161616:
>-			params.usSymClock =
>-				cpu_to_le16((le16_to_cpu(params.usSymClock) * 48) / 24);
>+			params.usSymClock = cpu_to_le16((sym_clock * 48) / 24);
> 			break;
> 		default:
> 			break;
>-- 
>2.17.1
>

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