[alsa-devel] Applied "ASoC: ux500: drop platform DAI assignments" to the asoc tree

[Mark Brown]

The patch

   ASoC: ux500: drop platform DAI assignments

has been applied to the asoc tree at

   git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git 

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.  

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

>From f1013cdeeeb978e3d8ef254bee1f007da4c862f3 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij at linaro.org>
Date: Tue, 28 Feb 2017 15:43:43 +0100
Subject: [PATCH] ASoC: ux500: drop platform DAI assignments

This platform is completely probed by device tree nowadays, so
we need to do a bigger cleanup removing all the non-DT codepaths.
This cleanup must however go in as a fix since it fixes a
regression.

Currently when Ux500 audio is enabled, dmesg complains like
this:

entry->name == "prealloc"
entry->name == "prealloc_max"
entry->name == "prealloc"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
proc_dir_entry 'sub0/prealloc' already registered
(...)
entry->name == "prealloc_max"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
proc_dir_entry 'sub0/prealloc_max' already registered
(...)
snd-soc-mop500 soc:sound: ab8500-codec-dai.0 <->
80124000.msp mapping ok
entry->name == "prealloc"
entry->name == "prealloc_max"
entry->name == "prealloc"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
proc_dir_entry 'sub0/prealloc' already registered
(...)
entry->name == "prealloc_max"
------------[ cut here ]------------
WARNING: CPU: 0 PID: 95 at ../fs/proc/generic.c:346
proc_register+0xf0/0x110
proc_dir_entry 'sub0/prealloc_max' already registered
snd-soc-mop500 soc:sound: ab8500-codec-dai.1 <->
80125000.msp mapping ok

This is because PCMs are created twice for the same hardware,
and this happens because both "platform" and "CPU" DAI links
are specified.

But platform/CPU is an either/or pair, not a both/and pair.
This has maybe worked in the past, but it is causing trouble
now, so let us begin the cleanups by removing the platform
assignment and silencing the boot noise, and make a proper DT
cleanup for the next kernel cycle.

Cc: Ulf Hansson <ulf.hansson at linaro.org>
Cc: Lee Jones <lee.jones at linaro.org>
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
Signed-off-by: Mark Brown <broonie at kernel.org>
---
 sound/soc/ux500/mop500.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sound/soc/ux500/mop500.c b/sound/soc/ux500/mop500.c
index ba9fc099cf67..b50f68a439ce 100644
--- a/sound/soc/ux500/mop500.c
+++ b/sound/soc/ux500/mop500.c
@@ -33,7 +33,6 @@ static struct snd_soc_dai_link mop500_dai_links[] = {
 		.stream_name = "ab8500_0",
 		.cpu_dai_name = "ux500-msp-i2s.1",
 		.codec_dai_name = "ab8500-codec-dai.0",
-		.platform_name = "ux500-msp-i2s.1",
 		.codec_name = "ab8500-codec.0",
 		.init = mop500_ab8500_machine_init,
 		.ops = mop500_ab8500_ops,
@@ -43,7 +42,6 @@ static struct snd_soc_dai_link mop500_dai_links[] = {
 		.stream_name = "ab8500_1",
 		.cpu_dai_name = "ux500-msp-i2s.3",
 		.codec_dai_name = "ab8500-codec-dai.1",
-		.platform_name = "ux500-msp-i2s.3",
 		.codec_name = "ab8500-codec.0",
 		.init = NULL,
 		.ops = mop500_ab8500_ops,
@@ -87,8 +85,6 @@ static int mop500_of_probe(struct platform_device *pdev,
 	for (i = 0; i < 2; i++) {
 		mop500_dai_links[i].cpu_of_node = msp_np[i];
 		mop500_dai_links[i].cpu_dai_name = NULL;
-		mop500_dai_links[i].platform_of_node = msp_np[i];
-		mop500_dai_links[i].platform_name = NULL;
 		mop500_dai_links[i].codec_of_node = codec_np;
 		mop500_dai_links[i].codec_name = NULL;
 	}
-- 
2.11.0