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* ASoC: soc-cache: dereferencing before checkingDan Carpenter2011-02-081-13/+12
| | | | | | | | | | | | | The patch c358e640a66 "ASoC: soc-cache: Add trace event for snd_soc_cache_sync()" introduced a dereference of "codec->cache_ops" before we had checked it for NULL. I pulled the check forward, and then pulled everything in an indent level. Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add trace event for snd_soc_cache_sync()Dimitris Papastamos2011-01-211-0/+10
| | | | | | | | | | This patch makes it easy to see when the syncing process begins and ends. You can also enable the snd_soc_reg_write tracepoint to see which registers are being synced. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Apply the cache_bypass optionDimitris Papastamos2011-01-201-0/+4
| | | | | | | | | | | Incorporate the use of the cache_bypass functionality in the syncing functions. The snd_soc_flat_cache_sync() need not be hooked as there is no performance benefit from using the cache_bypass option. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Introduce the cache_bypass optionDimitris Papastamos2011-01-201-12/+24
| | | | | | | | | | This is primarily needed to avoid writing back to the cache whenever we are syncing the cache with the hardware. This gives a performance benefit especially for large register maps. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add support for default readable()/volatile() functionsDimitris Papastamos2011-01-131-0/+49
| | | | | | | | | | | | For common scenarios, device drivers can provide a table of all the registers that are at least either readable/writable/volatile. The idea is that if a register lookup fails, all of its read/write/vol members will be zero and will be treated as default. This also reduces the size of the register access array. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* Merge branch 'for-2.6.38' into for-2.6.39Mark Brown2011-01-131-1/+1
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| * ASoC: soc-cache: Fix invalid memory access during snd_soc_lzo_cache_sync()Dimitris Papastamos2011-01-111-1/+1
| | | | | | | | | | | | | | | | | | | | The size of the lzo syncing bitmap was incorrectly set to the size of the cache times the word size, however, the correct size is the size of the cache. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | ASoC: soc-cache: Add reg_size as a member to snd_soc_codecDimitris Papastamos2011-01-121-18/+8
| | | | | | | | | | | | | | | | | | | | Simplify the use of reg_size, by calculating it once and storing it in the codec structure for later reference. The value of reg_size is reg_cache_size * reg_word_size. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | ASoC: soc-cache: Ensure flat compression uses a copy of the defaults cacheDimitris Papastamos2011-01-121-12/+4
| | | | | | | | | | | | | | | | | | | | | | With the addition of the cache fallback functionality, it is necessary to ensure that if the register defaults cache was marked as __devinitconst and the LZO compression is not compiled in the kernel, the fallback to flat compression will still use a copy of the defaults cache. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | ASoC: soc-cache: Clean up the cache manipulation codeDimitris Papastamos2011-01-111-148/+82
|/ | | | | | | | | Use Takashi's clean up code to make the cache manipulation code more readable. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Make LZO cache compression optionalMark Brown2010-12-211-0/+4
| | | | | | | | | Make LZO cache compression optional as it pulls in the kernel wide LZO implementation and rbtree compression is generally more efficient for typical register maps, especially in terms of CPU performance. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: If we can't find a cache compression type default to flatMark Brown2010-12-211-3/+6
| | | | | | | | This makes it easier to make cache types build time configurable as we don't have a hard dependency on a given cache being built in. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: soc-cache: A few minor stylistic changesDimitris Papastamos2010-12-141-7/+7
| | | | | | | | | Remove redundant parentheses/spaces in the use of the sizeof operator. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add optional cache name member to snd_soc_cache_opsDimitris Papastamos2010-12-061-2/+16
| | | | | | | | | | | Added an optional name member to snd_soc_cache_ops to enable more sensible diagnostic messages during cache init, exit and sync. Remove redundant newline in source code. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Constify struct snd_soc_codec_driverMark Brown2010-12-031-6/+6
| | | | | | | | Allow the CODEC driver structure to be marked const by making all the APIs that use it do so. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: soc-cache: Use reg_def_copy instead of reg_cache_defaultDimitris Papastamos2010-12-031-12/+24
| | | | | | | | | | | | Make sure to use codec->reg_def_copy instead of codec_drv->reg_cache_default wherever necessary. This change is necessary because in the next patch we move the cache initialization code outside snd_soc_register_codec() and by that time any data marked as __devinitconst such as the original reg_cache_default array might have already been freed by the kernel. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Add compress_type as a member to snd_soc_codecDimitris Papastamos2010-12-031-2/+2
| | | | | | | | | | | | | | We need to keep a copy of the compress_type supplied by the codec driver so that we can override it if necessary with whatever the machine driver has provided us with. The reason for not modifying the codec->driver struct directly is that ideally we'd like to keep it const. Adjust the code in soc-cache and soc-core to make use of the compress_type member in the snd_soc_codec struct. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Move active copy of CODEC read and write into runtime structureMark Brown2010-12-031-2/+2
| | | | | | | | | | We shouldn't be assigning to the driver structure (which really ought to be const, further patch to follow) though there's unlikely to be any actual problem except in the unlikely case that two devices with the same driver but different bus types appear in the same system. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: soc-cache: Fix memory overflow in LZO initializationDimitris Papastamos2010-11-301-1/+1
| | | | | | | | | | | | The bitmap_zero() nbits argument was improperly set to reg_size but the underlying buffer was bmp_size long. This caused the memset to zero past the end of the allocated buffer and into the kernel heap causing strange kernel crashes sometimes by overwriting critical kernel structures. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Ensure consistent cache namingDimitris Papastamos2010-11-291-1/+1
| | | | | | Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add error checking in the *_cache_sync functionsDimitris Papastamos2010-11-291-7/+21
| | | | | | | | | | | Ensure that we report any errors encountered during reads/writes in the cache syncing functions. Remove redundant newline in the source code. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add support for rbtree based register cachingDimitris Papastamos2010-11-111-0/+232
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for rbtree compression when storing the register cache. It does this by not adding any uninitialized registers (those whose value is 0). If any of those registers is written with a nonzero value they get added into the rbtree. Consider a sample device with a large sparse register map. The register indices are between [0, 0x31ff]. An array of 12800 registers is thus created each of which is 2 bytes. This results in a 25kB region. This array normally lives outside soc-core, normally in the driver itself. The original soc-core code would kmemdup this region resulting in 50kB total memory. When using the rbtree compression technique and __devinitconst on the original array the figures are as follows. For this typical device, you might have 100 initialized registers, that is registers that are nonzero by default. We build an rbtree with 100 nodes, each of which is 24 bytes. This results in ~2kB of memory. Assuming that the target arch can freeup the memory used by the initial __devinitconst array, we end up using about ~2kB bytes of actual memory. The memory footprint will increase as uninitialized registers get written and thus new nodes created in the rbtree. In practice, most of those registers are never changed. If the target arch can't freeup the __devinitconst array, we end up using a total of ~27kB. The difference between the rbtree and the LZO caching techniques, is that if using the LZO technique the size of the cache will increase slower as more uninitialized registers get changed. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add support for LZO register cachingDimitris Papastamos2010-11-111-0/+413
| | | | | | | | | | | | | | | | | | | | | This patch adds support for LZO compression when storing the register cache. The initial register defaults cache is marked as __devinitconst and the only change required for a driver to use LZO compression is to set the compress_type member in codec->driver to SND_SOC_LZO_COMPRESSION. For a typical device whose register map would normally occupy 25kB or 50kB by using the LZO compression technique, one can get down to ~5-7kB. There might be a performance penalty associated with each individual read/write due to decompressing/compressing the underlying cache, however that should not be noticeable. These memory benefits depend on whether the target architecture can get rid of the memory occupied by the original register defaults cache which is marked as __devinitconst. Nevertheless there will be some memory gain even if the target architecture can't get rid of the original register map, this should be around ~30-32kB instead of 50kB. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add support for flat register cachingDimitris Papastamos2010-11-111-31/+308
| | | | | | | | | | | | | | | | | This patch introduces the new caching API and migrates the old caching interface into the new one. The flat register caching technique does not use compression at all and it is equivalent to the old caching technique. One can still access codec->reg_cache directly but this is not advised as that will not be portable across different caching strategies. None of the existing drivers need to be changed to adapt to this caching technique. There should be no noticeable overhead associated with using the new caching API. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Use BUG_ON() for unsupported hw_read() callsDimitris Papastamos2010-11-081-0/+6
| | | | | | | | | Instead of dereferencing a NULL function pointer and falling apart use BUG_ON() for any unimplemented hw_read() calls. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Remove unnecessary debugging infoDimitris Papastamos2010-11-031-12/+0
| | | | | | | | | No need to print the register-value pair again, as we've already hooked snd_soc_write() for that matter. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: Add spi_write support for all I/O typesDimitris Papastamos2010-10-051-0/+96
| | | | | | | | | Ensure that all drivers that use SPI and I2C will work properly by providing SPI write functions for all different I/O types. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Fix incorrect parameter to snd_soc_codec_volatile_registerDimitris Papastamos2010-09-231-1/+1
| | | | | | | | | | We need to pass the register index and not the register value. This patch depends on my previous patch "ASoC: Delegate to hw specific read for volatile registers". Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Delegate to hw specific read for volatile registersDimitris Papastamos2010-09-231-26/+50
| | | | | | | | | Ensure that reads on volatile registers will correctly delegate to the bus specific read function. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: adapt multi-componentism againTakashi Iwai2010-09-231-3/+3
| | | | | | | | Go back to the new world order. (Also fixed indentation.) Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Merge branch 'for-2.6.36' of ↵Takashi Iwai2010-09-231-1/+1
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into topic/asoc
| * ASoC: Fix multi-componentismMark Brown2010-09-221-1/+1
| | | | | | | | | | | | Spot the build testing. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * ASoC: Fix soc-cache buffer overflow bugDimitris Papastamos2010-09-221-2/+3
| | | | | | | | | | | | | | | | | | Make sure we stay within the cache boundaries when updating the register cache. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | ASoC: Return -1 instead of -EINVAL to ensure consistencyDimitris Papastamos2010-09-221-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | The code can't really cope with I/O errors, so it would be better to be consistent throughout all cache functions and return -1 instead of -EINVAL. The return value of snd_soc_read(...) is mostly checked in the probe function and nowhere else. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | ASoC: Fix soc-cache buffer overflow bugDimitris Papastamos2010-09-211-2/+3
| | | | | | | | | | | | | | | | | | Make sure we stay within the cache boundaries when updating the register cache. Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* | Merge branch 'for-2.6.36' of ↵Mark Brown2010-08-151-2/+2
|\ \ | |/ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into for-2.6.37 Trivial overlap with the removal of the local revision variable. Conflicts: sound/soc/codecs/wm8994.c
| * ASoC: register cache should be 1 byte aligned for 1 byte long registerCliff Cai2010-08-101-2/+2
| | | | | | | | | | | | | | | | Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org
* | ASoC: Automatically determine control_data for soc-cache usersMark Brown2010-08-121-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the provision of a struct device for the CODEC is now mandatory we can use container_of() to locate the struct i2c_client and struct spi_device for relevant devices, removing the need to manually set it in each driver. A further patch will automate selection of the control type based on the bus_type of the struct device, further reducing the amount of driver code required. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* | ASoC: multi-component - ASoC Multi-Component SupportLiam Girdwood2010-08-121-17/+17
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch extends the ASoC API to allow sound cards to have more than one CODEC and more than one platform DMA controller. This is achieved by dividing some current ASoC structures that contain both driver data and device data into structures that only either contain device data or driver data. i.e. struct snd_soc_codec ---> struct snd_soc_codec (device data) +-> struct snd_soc_codec_driver (driver data) struct snd_soc_platform ---> struct snd_soc_platform (device data) +-> struct snd_soc_platform_driver (driver data) struct snd_soc_dai ---> struct snd_soc_dai (device data) +-> struct snd_soc_dai_driver (driver data) struct snd_soc_device ---> deleted This now allows ASoC to be more tightly aligned with the Linux driver model and also means that every ASoC codec, platform and (platform) DAI is a kernel device. ASoC component private data is now stored as device private data. The ASoC sound card struct snd_soc_card has also been updated to store lists of it's components rather than a pointer to a codec and platform. The PCM runtime struct soc_pcm_runtime now has pointers to all its components. This patch adds DAPM support for ASoC multi-component and removes struct snd_soc_socdev from DAPM core. All DAPM calls are now made on a card, codec or runtime PCM level basis rather than using snd_soc_socdev. Other notable multi-component changes:- * Stream operations now de-reference less structures. * close_delayed work() now runs on a DAI basis rather than looping all DAIs in a card. * PM suspend()/resume() operations can now handle N CODECs and Platforms per sound card. * Added soc_bind_dai_link() to bind the component devices to the sound card. * Added soc_dai_link_probe() and soc_dai_link_remove() to probe and remove DAI link components. * sysfs entries can now be registered per component per card. * snd_soc_new_pcms() functionailty rolled into dai_link_probe(). * snd_soc_register_codec() now does all the codec list and mutex init. This patch changes the probe() and remove() of the CODEC drivers as follows:- o Make CODEC driver a platform driver o Moved all struct snd_soc_codec list, mutex, etc initialiasation to core. o Removed all static codec pointers (drivers now support > 1 codec dev) o snd_soc_register_pcms() now done by core. o snd_soc_register_dai() folded into snd_soc_register_codec(). CS4270 portions: Acked-by: Timur Tabi <timur@freescale.com> Some TLV320aic23 and Cirrus platform fixes. Signed-off-by: Ryan Mallon <ryan@bluewatersys.com> TI CODEC and OMAP fixes Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com> Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Jarkko Nikula <jhnikula@gmail.com> Samsung platform and misc fixes :- Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Jassi Brar <jassi.brar@samsung.com> Signed-off-by: Seungwhan Youn <sw.youn@samsung.com> MPC8610 and PPC fixes. Signed-off-by: Timur Tabi <timur@freescale.com> i.MX fixes and some core fixes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> J4740 platform fixes:- Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> CC: Tony Lindgren <tony@atomide.com> CC: Nicolas Ferre <nicolas.ferre@atmel.com> CC: Kevin Hilman <khilman@deeprootsystems.com> CC: Sascha Hauer <s.hauer@pengutronix.de> CC: Atsushi Nemoto <anemo@mba.ocn.ne.jp> CC: Kuninori Morimoto <morimoto.kuninori@renesas.com> CC: Daniel Gloeckner <dg@emlix.com> CC: Manuel Lauss <mano@roarinelk.homelinux.net> CC: Mike Frysinger <vapier.adi@gmail.com> CC: Arnaud Patard <apatard@mandriva.com> CC: Wan ZongShun <mcuos.com@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: Add debug output tracing all cache register writesMark Brown2010-05-051-0/+12
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: soc-cache: let reg be AND'ed by 0xff instead of data buffer for 8_8 modeBarry Song2010-03-181-1/+3
| | | | | | | | | | | The registers for AD193X are defined as 0x800-0x810 for spi which uses 16_8 mode, for i2c to support AD1937, we will use 8_8 mode, only the low byte of 0x800-0x810 is valid. The patch will not destory other codecs, but make soc cache interface more useful. Signed-off-by: Barry Song <barry.song@analog.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: add i2c read entry for 8_8 modeCliff Cai2010-03-181-0/+35
| | | | | | | Signed-off-by: Cliff Cai <cliff.cai@analog.com> Signed-off-by: Barry Song <barry.song@analog.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Add 16/16 registers to soc-cacheMark Brown2010-03-051-0/+83
| | | | | | | I2C only at the minute. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: Add a cache_sync bit to the CODEC structureMark Brown2010-02-041-5/+15
| | | | | | | | | | Add a bit to the CODEC structure indicating if a cache sync is required. By default this will be set if a cache only write is done to a soc-cache register cache. This allows us to avoid syncing the cache back after using cache only writes if there were no changes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: Allow CODECs to ask soc-cache to suppress physical writesMark Brown2010-02-031-2/+24
| | | | | | | | | | | Currently the soc-cache code will always write to the device, meaning that we need the device to be powered and active at pretty much all times the system is active. Allowing cache only writes lays some groundwork for future enhancements to allow devices to be put into a full off state when the audio subsystem is idle. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
* ASoC: ad1938: use soc-cache framework for codec registers accessBarry Song2010-01-271-0/+108
| | | | | | Signed-off-by: Barry Song <Barry.Song@analog.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: ad1836: use soc-cache framework for codec registers accessBarry Song2010-01-271-0/+67
| | | | | | Signed-off-by: Barry Song <Barry.Song@analog.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: soc-cache: cleanup training whitespace and coding styleBarry Song2009-12-311-1/+1
| | | | | | Signed-off-by: Barry Song <21cnbao@gmail.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Convert soc-cache to use C99 style initialisers for the tableMark Brown2009-09-211-4/+14
| | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Factor out I2C 8 bit address 8 bit data I/OJoonyoung Shim2009-09-071-0/+30
| | | | | | | This patch is for the AK4671 codec driver using this format. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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