mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From d0df79e13ab947367b86d7861e34f85aa6aad020 Mon Sep 17 00:00:00 2001
|
|
From: Dom Cobley <popcornmix@gmail.com>
|
|
Date: Sun, 24 Jan 2021 15:44:10 +0000
|
|
Subject: [PATCH] vc4/drm: Avoid full hdmi audio fifo writes
|
|
|
|
We are getting occasional VC4_HD_MAI_CTL_ERRORF in
|
|
HDMI_MAI_CTL which seem to correspond with audio dropouts.
|
|
|
|
Reduce the threshold where we deassert DREQ to avoid the fifo overfilling
|
|
|
|
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_hdmi.c | 8 ++++----
|
|
1 file changed, 4 insertions(+), 4 deletions(-)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
@@ -1294,10 +1294,10 @@ static int vc4_hdmi_audio_prepare(struct
|
|
|
|
/* Set the MAI threshold */
|
|
HDMI_WRITE(HDMI_MAI_THR,
|
|
- VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICHIGH) |
|
|
- VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_PANICLOW) |
|
|
- VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQHIGH) |
|
|
- VC4_SET_FIELD(0x10, VC4_HD_MAI_THR_DREQLOW));
|
|
+ VC4_SET_FIELD(0x08, VC4_HD_MAI_THR_PANICHIGH) |
|
|
+ VC4_SET_FIELD(0x08, VC4_HD_MAI_THR_PANICLOW) |
|
|
+ VC4_SET_FIELD(0x06, VC4_HD_MAI_THR_DREQHIGH) |
|
|
+ VC4_SET_FIELD(0x08, VC4_HD_MAI_THR_DREQLOW));
|
|
|
|
HDMI_WRITE(HDMI_MAI_CONFIG,
|
|
VC4_HDMI_MAI_CONFIG_BIT_REVERSE |
|