If asoc_simple_card_probe() fails, asoc_simple_card_unref() may be
called before dev_set_drvdata(), causing a NULL pointer dereference in
asoc_simple_card_unref():
Unable to handle kernel NULL pointer dereference at virtual address 000000d4
...
PC is at asoc_simple_card_unref+0x14/0x48
LR is at asoc_simple_card_probe+0x3d4/0x40c
This typically happens because asoc_simple_card_parse_of() returns
-EPROBE_DEFER, but other failure modes are possible.
devm_snd_soc_register_card()/snd_soc_register_card() may fail either
before or after dev_set_drvdata().
Pass a snd_soc_card pointer instead of a platform_device pointer to
asoc_simple_card_unref() to fix this.
Note that if CONFIG_OF_DYNAMIC=n, of_node_put() is a dummy, and gcc may
optimize away the loop over card->dai_link, never actually dereferencing
card, and thus avoiding the crash...
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Fixes: e512e001da ("ASoC: simple-card: Fix the reference count of device nodes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes, just
removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There are
some ath9k patches coming in through this tree that have been acked by
the wireless maintainers as they relied on the debugfs changes.
Everything has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
The device node pointer 'cpu' is not used in the function
asoc_simple_card_parse_daifmt().
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
There is no need to cast the cpu_of_node or codec_of_node of the
dai_links when calling of_put_node.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
Since hardware may invert detect GPIO of headphone or mic, add one
property to support software invert.
Signed-off-by: Jianqun <jay.xu@rock-chips.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Current daifmt setting method in simple-card driver is
placed to many places, and using un-readable/confusable method.
This patch adds new asoc_simple_card_parse_daifmt()
and tidyup code.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
of_node_put() supports NULL as its argument, so the initial test is not
necessary.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The uninitialized default of 0 for gpio_hp_det and gpio_mic_det doesn't
play well with asm-generic's gpio_is_valid():
static inline bool gpio_is_valid(int number)
{
return number >= 0 && number < ARCH_NR_GPIOS;
}
Hence on r8a7740/armadillo-legacy:
sh-mobile-hdmi sh-mobile-hdmi: SH Mobile HDMI Audio Codec
sh-mobile-hdmi sh-mobile-hdmi: ASoC: DAPM unknown pin Headphones
sh-mobile-hdmi sh-mobile-hdmi: ASoC: DAPM unknown pin Mic Jack
After that the kernel log is spammed ca. 7 times per second with:
sh-mobile-hdmi sh-mobile-hdmi: ASoC: DAPM unknown pin Headphones
Initialize the GPIO numbers with a negative number (-ENOENT) to fix this.
Fixes: 3fe240326c ("ASoC: simple-card: Add mic and hp detect gpios.")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
Allow Headphone and Microphone jack detect gpios to be specified in
device tree. This will allow a few systems including rk3288_max98090
to use simple-card instead of having their own board file.
Signed-off-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
It can get dai_link/dai_props pointer from priv + index
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
priv has many information about simple-card driver.
Using it becomes easy to extend feature.
This patch gets dev from priv as 1st step
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 7c7b9cf53d ("ASoC: simple-card: fixup cpu_dai_name
clear case") changed the way that "sound-dai" properties are handled,
which leads to the clock frequency not being picked up from the
node that the phandle points to, as correctly identified by gcc
with this warning:
sound/soc/generic/simple-card.c: In function 'asoc_simple_card_sub_parse_of':
sound/soc/generic/simple-card.c:165:7: warning: 'node' may be used uninitialized in this function [-Wmaybe-uninitialized]
This restores the previous behavior by using the node from
of_parse_phandle_with_args() that was previously being
returned from of_parse_phandle().
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch will split the DT node into old style and new style:
The new style will merge the single DAI link and muti DAI links code
together, the new style will be easier to add muti DAI links from old
single DAI link DTs.
This patch will maintian compatibility with the old DTs.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
f687d900d3
(ASoC: simple-card: cpu_dai_name creates confusion when DT case)
cleared cpu_dai_name for caring fmt_single_name case,
and
179949bc04
(ASoC: simple-card: remove dai_link->cpu_dai_name when DT)
cared multi dai-link case.
but, cpu_dai_name matching is required when fmt_multiple_name was used
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@kernel.org>
DAI links's cpu_of_node's and codec_of_node's refcounts shouldn't
be decremented immediately at the end of the probe() fucntion.
Because we will still use them before the audio card is removed.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
6a91a17bd7
(ASoC: simple-card: Handle many DAI links)
added multi DAI support on simple-card.
This means priv->dai_link might be pointer of multi DAI.
dai_link->init is needed for all DAI.
This patch cares it for all DAIs on DT/non-DT
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
f687d900d3
(ASoC: simple-card: cpu_dai_name creates confusion when DT case)
removed dai_link->cpu_dai_name when DT case,
since it uses DT phand in soc_bind_dai_link().
This binding will fail if it has cpu_dai_name.
6a91a17bd7
(ASoC: simple-card: Handle many DAI links)
added multi DAI link support to simple-card driver.
Then, removing cpu_dai_name was cared only single DAI.
But, it is needed in all DT cases.
This patch moves it to asoc_simple_card_dai_link_of()
so that care about all DAIs.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
simple-card driver is using asoc_simple_xxx() prefix.
simple_card_dai_link_of() should be
asoc_simple_card_dai_link_of().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/generic/simple-card.c: In function simple_card_dai_link_of:
sound/soc/generic/simple-card.c:198:10: warning: passing argument 3 of
asoc_simple_card_sub_parse_of from incompatible pointer type [enabled by default]
&dai_link->cpu_dai_name);
^
sound/soc/generic/simple-card.c:112:1: note: expected const struct device_node **
but argument is of type struct device_node **
asoc_simple_card_sub_parse_of(struct device_node *np,
^
sound/soc/generic/simple-card.c:229:10: warning: passing argument 3 of
asoc_simple_card_sub_parse_of from incompatible pointer type [enabled by default]
&dai_link->codec_dai_name);
^
sound/soc/generic/simple-card.c:112:1: note: expected const struct device_node **
but argument is of type struct device_node **
asoc_simple_card_sub_parse_of(struct device_node *np,
^
Since the asoc_simple_card_sub_parse_of() is used in simple-card module only,
and the third argument is just used to get the node ponters address, so there is
no need it must to be 'const' type.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Passing unsigned int pointers as u32 ponters may be dangerous on 64-bit
system.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Some platforms require that the codecs mclk is a fixed multiplication
factor of the audio stream rate. Add a optional property to the
binding to hold this factor and implement a hw_params() function to
make use of it.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Mark Brown <broonie@linaro.org>
Restore correct parsing of dai-link subnodes with more explicit
implementation for applying the "simple-audio-card,"-prefix to
dai-link property and subnode names.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The current simple-card driver limits the DT node name to "sound".
Any of other names is forbidden while actually we should allow DT
to pass other node names.
And if this function is being called, the node must already have
the compatible "simple-audio-card" in DTB. So there should be no
need to check the name here.
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The properties like format, bitclock-master, frame-master,
bitclock-inversion, and frame-inversion should be common to the dais
connected with a dai-link. For bitclock-master and frame-master
properties to be unambiguous they need to indicate the mastering dai
node with a phandle.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
Adds struct device_node **bitclkmaster and struct device_node **framemaster
function parameters. With the new syntax bitclock-master and frame-master
properties can explicitly indicate the dai-link bit-clock and frame masters
with a phandle. This patch also makes the minimal changes to simple-card
for it to work with the updated snd_soc_of_parse_daifmt(). Simple-card appears
to be the only user of snd_soc_of_parse_daifmt() for now.
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
Some simple audio cards may have many DAI links.
This patch extends the simple-card driver for handling such cards.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
The DAI link array and the properties (fmt, sysclk slots) are
hard-coded for a single CPU / CODEC link.
This patch dynamically allocates the DAI link array and the
properties with the aim of supporting many DAI links.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
The current simple-card driver separates the daimft for cpu_dai and codec_dai.
So we might get different values for them (0x4003 and 0x1003 for example):
asoc-simple-card sound-cs42888.12: cpu : 2024000.esai / 4003 / 132000000
asoc-simple-card sound-cs42888.12: codec : cs42888 / 1003 / 24576000
asoc-simple-card sound-cs42888.12: cs42888 <-> 2024000.esai mapping ok
This is not allowed at all as we need to keep the DAIFMT settings identical
for both the ends of the link.
Thus this patch fixes it by overwriting the cpu_dai->fmt with codec_dai->fmt
since we defined the DAIFMT_MASTER basing on CODEC at the first place while
the other bits are same.
Signed-off-by: Nicolin Chen <Guangyu.Chen@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The global DAI format is used only in the function
asoc_simple_card_parse_of(). So, move it from the private data
to the stack.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Reviewed-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
The reference count of some device nodes is not correctly reset
at end of card probe.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
snd_card.name is now option on DT case.
non-DT case can follow same style,
and it is understandable from platform point of view.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
30d0341e7d
(ASoC: simple-card: simplify the daifmt code)
simplify cpu/codec dai_fmt which consists from
dai specific format + common format.
But, it didn't care about non-DT case.
This patch fixes it
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Basically, soc_bind_dai_link() checks
cpu_dai->dev->of_node and dai_link->cpu_of_node in DT case.
But after that it will check
cpu_dai->name and dai_link->cpu_dai_name too.
On the other hand, snd_soc_dai :: name is created by
fmt_single_name() or fmt_multiple_name().
There is no confusion if dai name is created by fmt_multiple_name(),
since cpu_dai->name is same as dai_link->cpu_dai_name.
but, if dai name is created by fmt_single_name(), CPU DAI never match.
Thus, simple-card not set dai_link->cpu_dai_name if DT case
to skip naming match on soc_bind_dai_link()
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
For some CPU/CODEC DAI devices the slot information maybe needed. This
patch adds the slot information parsing for simple-card driver.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
If the DT is used and the CPU DAI device has only one DAI, the card
name will be like :
ALSA device list:
0: 40031000.sai-sgtl5000
And this name maybe a little ugly to some customers, so here the
card name parsing from DT node is supported.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
In the asoc_simple_card_parse_of() will parse the device node's CPU/CODEC
DAI commone fmts, and then in asoc_simple_card_sub_parse_of() will parse
the CPU/CODEC DAI's sub-node fmts, so we can combine the info->daifmt and
info->set.fmt in asoc_simple_card_sub_parse_of() not while just before
_set_fmt().
And this will be more easy to add new functions, such as supporting
_set_tdm_slot(), etc.
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
If the CPU/CODEC DAI set_sysclk() is not support, the -ENOTSUPP will returnd.
Here do the check like set_fmt().
Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Rename the pointer to the private data structure to 'priv' to avoid confusion with the platform data pointer.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
The platform data structure contains information which is used only by
the driver, and the driver allocates platform information fields which
are of no use.
Move the driver specific data to a new private structure and cleanup
the platform data structure.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
In the non-DT sequence, the platform data is copied as a whole to the
dynamic card info and the same pointer 'cinfo' is used to copy the
platform information to the card.
Use 'priv' as the pointer to the dynamic card info and copy only the
useful information from the platform data.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
The CPU and CODEC DAI names are still copied to the user info structure.
Put them directly in the DAI links.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
The OF pointers are put in the stack and then copied to the card
descriptor.
Put them directly at their right place.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
