The patch
ASoC: fsl_esai: use flat regmap cache
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 0effb8651ee3b00513fbba9ef3912bbcbbd38af6 Mon Sep 17 00:00:00 2001
From: Marek Vasut marex@denx.de Date: Mon, 19 Sep 2016 21:30:26 +0200 Subject: [PATCH] ASoC: fsl_esai: use flat regmap cache
Same as commit ce492b3b8f99cf9d2f807ec22d8805c996a09503 Subject: drm/fsl-dcu: use flat regmap cache
Using flat regmap cache instead of RB-tree to avoid the following lockdep warning on driver load: WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2871 lockdep_trace_alloc+0x104/0x128 DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
The RB-tree regmap cache needs to allocate new space on first writes. However, allocations in an atomic context (e.g. when a spinlock is held) are not allowed. The function regmap_write calls map->lock, which acquires a spinlock in the fast_io case. Since the driver uses MMIO, the regmap bus of type regmap_mmio is being used which has fast_io set to true.
Signed-off-by: Marek Vasut marex@denx.de Acked-by: Nicolin Chen nicoleotsuka@gmail.com Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/fsl/fsl_esai.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index e927955ba982..38bfd46f4ad8 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -781,7 +781,7 @@ static const struct regmap_config fsl_esai_regmap_config = { .readable_reg = fsl_esai_readable_reg, .volatile_reg = fsl_esai_volatile_reg, .writeable_reg = fsl_esai_writeable_reg, - .cache_type = REGCACHE_RBTREE, + .cache_type = REGCACHE_FLAT, };
static int fsl_esai_probe(struct platform_device *pdev)