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* sound: irq: Remove IRQF_DISABLEDYong Zhang2011-09-2228-31/+31
| | | | | | | | | | | | | | | Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* Merge branch 'topic/asoc' into topic/remove-irqf_disableTakashi Iwai2011-09-22131-1205/+6667
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| * Merge branch 'for-3.1' into for-3.2Mark Brown2011-09-201-26/+0
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| | * ASoC: Remove bitrotted wm8962_resume()Mark Brown2011-09-201-26/+0
| | | | | | | | | | | | | | | | | | | | | | | | This functionality is now subsumed within the bias management, using the standard cache management functionality, without assuming the cache type. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: ssm2602: Do not dereference codec->control_dataLars-Peter Clausen2011-09-201-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | The driver assumes that control_data points to the drivers i2c_client struct, but this is no longer the case since the ASoC core has switched to regmap. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: fsl: Fix error handling if platform_device_add failsAxel Lin2011-09-202-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Call platform_device_put() instead of platform_device_unregister() if platform_device_add() fails. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: Refcount WM8996 bandgap from FLL tooMark Brown2011-09-201-6/+39
| | | | | | | | | | | | | | | | | | | | | | | | For digital only paths we need to make sure the bandgap is enabled prior to starting the FLL which isn't tied into DAPM. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: Fix unused variable warning in WM8996Mark Brown2011-09-201-2/+0
| | | | | | | | | | | | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: twl6040: Correct supported number of playback channelsPeter Ujfalusi2011-09-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | twl6040 supports 5 playback, and 2 capture channels Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: twl6040: Fix the number of channels for vibraPeter Ujfalusi2011-09-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Only mono audio can be used for vibra (DL4 channel). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: twl6040: Use chip defaults in the initial reg_cachePeter Ujfalusi2011-09-201-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reset the twl6040_reg array to hold the chip default values. The only changed values were for the microphone input selection. Select no input for the microphones in the twl6040_init_chip function. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: twl6040: Chip initialization cleanupPeter Ujfalusi2011-09-202-90/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to write to the vio registers at probe time, since most them either read only, or shared with MFD or not used. On the other hand it is a good idea to updated the ASICREV register in the cache at this time. After power up we need to restore some registers. Clean up the list to contain only the registers we are going to restore. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | MFD: twl6040: Fix power on GPIO handlingPeter Ujfalusi2011-09-201-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid requesting the audpwron gpio in case of ES1.0 revision. In the past we requested the gpio, but we did not free it up, since we made the check for the revision later. This results later checks for gpio validity to fail, leaving the gpio reserved (even after the driver has been removed). Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | Input: twl6040-vibra: Use accessor to get revision informationPeter Ujfalusi2011-09-201-1/+1
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | MFD: twl6040: Add accessor for revision IDPeter Ujfalusi2011-09-202-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | For client driver to use, if they need chip resvision information. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | MFD: twl6040: Remove global pointer for platform_devicePeter Ujfalusi2011-09-201-16/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no need to keep global pointer for the platform device, since it is only used for dev_* prints, and the device pointer available within the twl6040 structure. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: mxs-saif: add record functionDong Aisheng2011-09-193-14/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. add different clkmux mode handling SAIF can use two instances to implement full duplex (playback & recording) and record saif may work on EXTMASTER mode which is using other saif's BITCLK&LRCLK. The clkmux mode could be set in pdata->init() in mach-specific code. For generic saif driver, it only needs to know who is his master and the master id is also provided in mach-specific code. 2. support playback and capture simutaneously however the sample rates can not be different due to hw limitation. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: sn95031: Staticize sn95031_pcm_hw_paramsAxel Lin2011-09-191-1/+1
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: Add line loads to the list of supported detections for SpeysideMark Brown2011-09-191-1/+2
| | | | | | | | | | | | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: Initial WM8996 headphone impedance measurement supportMark Brown2011-09-191-25/+112
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WM8996 can measure the impedance of accessories connected to the headphone output. Implement initial support for this, measuring the left channel impedance when an accessory is detected and using this to distinguish between a line load and a headphone load. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: WM8996 only needs bandgap for analogue functionalityMark Brown2011-09-191-11/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than managing the bandgap in the bias level control use a supply widget as we only actually need to enable it for analogue paths, not fully digital ones. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: Display the error code when we fail to add a DAPM controlMark Brown2011-09-191-2/+2
| | | | | | | | | | | | | | | | | | | | | Useful for diagnostics. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: support all possible sample rates in the WM8776 driverTimur Tabi2011-09-161-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WM8776 supports a continuous range of sample rates rather than discrete values and supports a wider range of sample rates on the playback path than is currently supported. Update the constraints on the DAIs to reflect this. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: wm8995: Remove unused i2c variable in wm8995_remove()Axel Lin2011-09-161-2/+0
| | | | | | | | | | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: wm8995: Return -EINVAL if device ID mismatchAxel Lin2011-09-161-0/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: tpa6130a2: Remove obsolete cleanup for clientdataAxel Lin2011-09-161-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The i2c core will clear the clientdata pointer automatically, we don't have to set the `data' field to NULL in remove() or if probe() failed anymore. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: davinci-pcm: trivial: replace link with actual chan/linkBen Gardiner2011-09-161-64/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ambiguously named variable 'link' is used as a temporary throughout davinci-pcm -- its presence makes grepping (and groking) the code difficult. Replace link with the value of link in almost all sites. The exception is a couple places where the last-assigned link/chan needs to be returned by a function -- in these cases, rename to last_link. Signed-off-by: Ben Gardiner <bengardiner@nanometrics.ca> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: edb93xx: convert to use snd_soc_register_card()Mika Westerberg2011-09-161-27/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current method for machine driver to register with the ASoC core is to use snd_soc_register_card() instead of creating a "soc-audio" platform device. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: simone: convert to use snd_soc_register_card()Mika Westerberg2011-09-161-28/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current method for machine driver to register with the ASoC core is to use snd_soc_register_card() instead of creating a "soc-audio" platform device. In addition we use platform_device_register_simple() to create a platform device for the codec. This function will handle putting and deleting the device automatically which simplifies the error handling in the machine driver. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: ep93xx-pcm: add MODULE_ALIASMika Westerberg2011-09-161-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To get the PCM module loaded automatically by udev et al. we need to add a proper MODULE_ALIAS. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ARM: ep93xx: snappercl15: register audio platform deviceMika Westerberg2011-09-161-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the ASoC machine driver is now a platform driver we need to register a matching platform device. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ARM: ep93xx: edb93xx: register audio platform deviceMika Westerberg2011-09-161-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the ASoC machine driver is now a platform driver we need to register a matching platform device. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ARM: ep93xx: simone: register audio platform deviceMika Westerberg2011-09-161-1/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the ASoC machine driver is now a platform driver we need to register a matching platform device. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: snappercl15: convert to use snd_soc_register_card()Mika Westerberg2011-09-161-17/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current method for machine driver to register with the ASoC core is to use snd_soc_register_card() instead of creating a "soc-audio" platform device. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: support sample sizes properly in the WM8776 codec driverTimur Tabi2011-09-161-12/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use snd_pcm_format_width() to determine the sample size, instead of checking specify sample formats and assuming that those are the only valid format. This change adds support for big-endian architectures (which use the _BE formats) and the packed 24-bit format (SNDRV_PCM_FORMAT_S24_3xE). [Fixed single letter variable name legibility problem -- broonie] Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | Merge branch 'for-3.1' into for-3.2Mark Brown2011-09-162-2/+2
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| | * ASoC: bf5xx-ad73311: Fix prototype for bf5xx_probeAxel Lin2011-09-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix below build warning: sound/soc/blackfin/bf5xx-ad73311.c: warning: initialization from incompatible pointer type Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: Fix WM8996 DC servo operation without IRQMark Brown2011-09-161-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | We need to count the timeout down. Reported-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: samsung: Fix checking return value of clk_getAxel Lin2011-09-163-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | clk_get() returns a pointer to the struct clk or an ERR_PTR(). This patch also use PTR_ERR() for return value. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: improve asynchronous mode support in the fsl_ssi driverTimur Tabi2011-09-161-77/+68
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Freescale SSI audio controller supports "synchronous" and "asynchronous" modes. In synchronous mode, playback and capture use the same input clock, so sample rates must be the same during simultaneous playback and capture. Unfortunately, the code which supports asynchronous mode is just broken in various ways. In particular, it was constraining sample sizes as well as the sample rate. The fix also allows us to simplify the code by eliminating the 'asynchronous', 'playback', and 'capture' variables that were used to keep track of playback and capture streams. Unfortunately, it turns out that simulataneous playback and record does not actually work on the only platform that supports asynchronous mode: the Freescale P1022DS reference board. If a second stream is started, the SSI grinds to halt for both streams. This is true even if the P1022 is configured for synchronous mode, so it's likely a hardware problem that needs to be worked around. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | ASoC: Correct channel numbers for WM8996 AIF2Mark Brown2011-09-141-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | The AIF1 channels are numbered from zero than one; do the same thing for AIF2 too. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: Disable WM8996 CPVDD supply when not in useMark Brown2011-09-141-8/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The WM8996 only requires CPVDD when the charge pump is active so control it separately to the other supplies, only enabling it when the charge pump is active. This will result in a small power saving on systems which are able to provide independent software control of the supply. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | regulator: Implement deferred disable supportMark Brown2011-09-143-0/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is a reasonably common pattern for hardware to require some delay after being quiesced before the disable has finalised, especially in mixed signal devices. For example, an active discharge may be required to ensure that the circuit starts up again in a known state. Avoid having to implement such delays in the regulator API by providing regulator_deferred_disable() which will do a regulator_disable() a specified number of milliseconds after it is called. Due to the reference counting done on regulators a deferred disable can be cancelled by doing another regulator_enable(). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Liam Girdwood <lrg@ti.com>
| * | ASoC: ad193x: Setup regmap read and write flag masks for SPILars-Peter Clausen2011-09-092-28/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently register read-back for the ad193x is broken, because it expects bit 0 of the upper byte to be set to indicate a read operation, while the regmap default for SPI is to use bit 7. This patch also addresses another oddity of the device. There are SPI and I2C versions of this codec. In both cases the registers are 8-bit wide and numbered from 0x0 to 0x10, but in the SPI case there is also a so called 'global address' which is prefixed in-front of the register address. The global address mimics I2C behaviour and includes a static device address the and the read/write flag. This basically extends the register address to an 16-bit value numbered from 0x800 to 0x810. These are the register numbers which are currently used by the driver. This works, because I2C will ignore the upper 8 bits of the register, but it is still a bit confusing, as there are no such register numbers in the I2C case. The approach taken by this patch is to number the registers from 0x00 to 0x10 and encode the global address for SPI mode into the read and write flag masks. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| * | Merge branch 'topic/interface' of git://opensource.wolfsonmicro.com/regmap ↵Mark Brown2011-09-092-0/+61
| |\ \ | | | | | | | | | | | | into for-3.2
| | * | regmap: Provide device read and write map interface for mergingMark Brown2011-09-091-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add the externally visible interface introduced by Lars-Peter's commit 6f3064 (regmap: Add support for device specific write and read flag masks) separately in order to allow merge into other subsystems for integration with drivers. Drivers relying on this feature will not be functional until they are merged with the implementation. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * | regmap: Allow drivers to specify register defaultsMark Brown2011-08-211-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is useful for the register cache code to be able to specify the default values for the device registers. The major use is when restoring the register cache after suspend, knowing the register defaults allows us to skip registers that are at their default values when we resume which can be a substantial win on larger modern devices. For some devices (mostly older ones) the hardware does not support readback so the only way we can know the values is from code and so initializing the cache with default values makes it much easier for drivers work with read/modify/write updates. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * | regmap: Fix kerneldoc errors for regmapMark Brown2011-08-091-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | Field names didn't match between the documentation and the code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * | regmap: Add precious registers to the driver interfaceMark Brown2011-08-081-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some devices are sensitive to reads on their registers, especially for things like clear on read interrupt status registers. Avoid creating problems with these with things like debugfs by allowing drivers to tell the core about them. If a register is marked as precious then the core will not internally generate any reads of it. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
| | * | regmap: Allow devices to specify which registers are accessibleMark Brown2011-08-082-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is currently unused but we need to know which registers exist and their properties in order to implement diagnostics like register map dumps and the cache features. We use callbacks partly because properties can vary at runtime (eg, through access locks on registers) and partly because big switch statements are a good compromise between readable code and small data size for providing information on big register maps. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 15:48:22 +0100