openwrt/target/linux/brcm2708/patches-4.4/0310-Revert-bcm2835-add-fal...

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From ed9e011f0f6a823a2e278ce7dd9e8bb620b08e56 Mon Sep 17 00:00:00 2001
From: popcornmix <popcornmix@gmail.com>
Date: Fri, 29 Apr 2016 17:27:35 +0100
Subject: [PATCH] Revert "bcm2835: add fallback channel layouts if channel map
API is not used"
This reverts commit ceacfff9f86f89826dbc8a6df667f485894327d1.
---
sound/arm/bcm2835-vchiq.c | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
--- a/sound/arm/bcm2835-vchiq.c
+++ b/sound/arm/bcm2835-vchiq.c
@@ -598,16 +598,7 @@ int bcm2835_audio_set_params(bcm2835_als
if (alsa_stream->chip->cea_chmap >= 0) {
chmap_value = (unsigned)alsa_stream->chip->cea_chmap << 24;
} else {
- /* fallback layouts for applications which do not use chmap API */
- chmap_value = 0x00;
- switch (channels) {
- case 3: chmap_value = 0x01; break;
- case 4: chmap_value = 0x03; break;
- case 5: chmap_value = 0x07; break;
- case 6: chmap_value = 0x0b; break;
- case 7: chmap_value = 0x0f; break;
- case 8: chmap_value = 0x13; break;
- }
+ chmap_value = 0; /* force stereo */
for (i = 0; i < 8; i++)
alsa_stream->chip->map_channels[i] = i;
}