openwrt/target/linux/bcm27xx/patches-5.15/950-0655-drm-vc4-hdmi-Fix-clock-value-used-for-validating-hdm.patch
Álvaro Fernández Rojas 20ea6adbf1 bcm27xx: add support for linux v5.15
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2708/RPiB+, bcm2709/RPi3B, bcm2710/RPi3B, bcm2711/RPi4B

Signed-off-by: Marty Jones <mj8263788@gmail.com>
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2022-05-17 15:11:22 +02:00

30 lines
988 B
Diff

From f285cba93ac9425078740d20456f34c94ad7511c Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Thu, 13 Jan 2022 15:47:23 +0000
Subject: [PATCH] drm/vc4: hdmi: Fix clock value used for validating
hdmi modes
We are using mode->crt_clock here which is filled by drm_mode_set_crtcinfo()
which is called right after .mode_valid.
Use mode->clock which is valid here.
Fixes: 624d93a4f0 ("drm/vc4: hdmi: Move clock calculation into its own function")
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1495,7 +1495,7 @@ vc4_hdmi_encoder_compute_mode_clock(cons
unsigned int bpc,
enum vc4_hdmi_output_format fmt)
{
- unsigned long long clock = mode->crtc_clock * 1000;
+ unsigned long long clock = mode->clock * 1000;
if (mode->flags & DRM_MODE_FLAG_DBLCLK)
clock = clock * 2;