openwrt/target/linux/bcm27xx/patches-5.10/950-0316-drm-vc4-enable-HBR-MAI-format-on-HBR-streams.patch
Álvaro Fernández Rojas 8299d1f057 bcm27xx: add kernel 5.10 support
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>
2021-08-21 19:07:07 +02:00

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962 B
Diff

From 465b5e6889b1af1c9c061751a0ee234a27644030 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Fri, 10 Jul 2020 11:51:16 +0100
Subject: [PATCH] drm/vc4: enable HBR MAI format on HBR streams
Signed-off-by: Matthias Reichl <hias@horus.com>
---
drivers/gpu/drm/vc4/vc4_hdmi.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -1062,7 +1062,11 @@ static int vc4_hdmi_audio_prepare(struct
vc4_hdmi_audio_set_mai_clock(vc4_hdmi);
mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate);
- mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
+ if (vc4_hdmi->audio.iec_status[0] & IEC958_AES0_NONAUDIO &&
+ vc4_hdmi->audio.channels == 8)
+ mai_audio_format = VC4_HDMI_MAI_FORMAT_HBR;
+ else
+ mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
HDMI_WRITE(HDMI_MAI_FMT,
VC4_SET_FIELD(mai_sample_rate,
VC4_HDMI_MAI_FORMAT_SAMPLE_RATE) |