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path: root/drivers/mfd/arizona-core.c
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* mfd: arizona: Split INx_MODE into two fieldsRichard Fitzgerald2015-06-221-2/+6
| | | | | | | | | | Later arizona silicon has the single/differential selector in a different register, and IN1_MODE only selects between analogue or digital. Prepare for this by splitting the INx_MODE definition into two fields. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: wm5110: Add delay before releasing reset lineCharles Keepax2015-06-221-0/+10
| | | | | | | | | On the wm5110 it is important the reset line is held for slightly longer to ensure the device starts up well. This patch adds a 5mS delay for this. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add better support for system suspendCharles Keepax2015-06-221-16/+77
| | | | | | | | | | | | | Allow the chip to completely power off if we enter runtime suspend and there is no jack detection active. This is helpful for systems where system suspend might remove the supplies to the CODEC, without informing us. Note the powering off is done in runtime suspend rather than system suspend, because we need to hold reset until the first time DCVDD is powered anyway (which would be in runtime resume), and we might as well save the extra power. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: wm5110: Set DCVDD voltage to 1.175V before entering sleep modeCharles Keepax2015-06-221-0/+52
| | | | | | | | | | The low power sleep mode on wm5110 requires that the LDO1 regulator be set to 1.175V prior to entering sleep, then returned to 1.2V after exiting sleep mode. This patch apply these regulator settings. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: wm5110: Add register patch required for low power sleepCharles Keepax2015-06-221-0/+39
| | | | | | | | | | | Some register settings must be applied before the first time low power sleep mode is entered on the wm5110 to ensure optimium performance. These settings require SYSCLK to be enabled whilst they are being applied. This patch applies the settings using the recently factored out boot time SYSCLK functionality. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Factor out SYSCLK enable from wm5102 hardware patchCharles Keepax2015-06-221-20/+57
| | | | | | | | | | wm5102 applies a custom hardware boot sequence, for this the SYSCLK needs to be enabled. This patch factors out the code that enables SYSCLK for this sequence such that it can be used for other boot time operations that require SYSCLK. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Fix formating/style issues in arizona_apply_hardware_patchCharles Keepax2015-06-221-20/+17
| | | | | | | | In preparation for some refactoring fixup some minor style, formating and code clarity issues. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: wm5102: Ensure we always boot the device fullyCharles Keepax2015-06-221-10/+40
| | | | | | | | | | | | | | | The wm5102 uses a custom boot sequence and the standard boot sequence is disabled. However, the standard boot sequence must be run at least once after a cold boot (caused by either a hard reset or removal of AVDD). Unfortunately the register WRITE_SEQUENCER_CTRL_3 is not affected by the hardware reset. This means if the device has been previously booted but the AVDD supply has never been removed, arizona_dev_init will reset the chip but the boot sequence will not run, which can cause numerous problems. The solution is to manually clear this register and then boot the chip again, which is what this patch does. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Factor out hard reset into helper functionsCharles Keepax2015-06-221-8/+17
| | | | | | | | This patch adds functions for enabling and disabling the physical reset line. This will be helpful in future refactoring. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Use devres to manage reset GPIOCharles Keepax2015-06-221-6/+4
| | | | | | | This also handily fixes a leak of the GPIO in arizona_dev_exit. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Remove redundant register syncCharles Keepax2015-06-221-8/+0
| | | | | | | | | | This soft reset used to be located after the register patch had been applied, but has since moved to before the patch is applied. At the new location there is no requirement to do a register sync as no register writes will have happened yet. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add DT binding for the DMIC reference voltagesCharles Keepax2015-03-121-0/+10
| | | | | | | | Add a DT binding that lets the DMIC reference voltage source be specified for each input. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add support for WM8280/WM8281Richard Fitzgerald2015-02-261-2/+13
| | | | | | | | | | This adds support for the Wolfson Microelectronics WM8280 and WM8281 codecs. Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> [Lee: Minor fixup to remove potentially uninitialised variable. ] Signed-off-by: Lee Jones <lee.jones@linaro.org>
* MFD / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PMRafael J. Wysocki2014-12-051-2/+2
| | | | | | | | | | | | | After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks depending on CONFIG_PM_RUNTIME may now be changed to depend on CONFIG_PM. Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under drivers/mfd/. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Correct mask to allow setting micbias external capCharles Keepax2014-09-261-0/+1
| | | | | | | | | Currently the mask for the external capacitor bit is missing when writing the MICBIAS config meaning it will never be set this patch fixes this. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Revert "mfd: wm5102: Manually apply register patch"Charles Keepax2014-09-261-12/+0
| | | | | | | | | | | | | | | | | | | | This reverts commit d9d03496f6f904a3588bdb8b215853bc4e50132c. It seems this commit was applied twice, once through ASoC and once through MFD: commit 4c9bb8bc352a14c9613c77bc3f1e9038cd086b9b mfd: wm5102: Manually apply register patch commit d9d03496f6f904a3588bdb8b215853bc4e50132c mfd: wm5102: Manually apply register patch This has lead to a small piece of duplicate code. It is harmless hence how it has gone unoticed for so long. This patch reverts one of the two commits removing the unneeded code. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add support for INn_Mode register controlInha Song2014-09-261-0/+13
| | | | | | | | | | | | | | | | Some boards need to set the INn_MODE[1:0] register to change the input signal patch. This wlf,inmode property is optional. If present, values must be specified less than or equal to the number of input singals. If values less than the number of input signals, elements that has not been specifed are set to 0 by default. Example: - wlf,inmode = <2 0 2>; /* IN1, IN3 use DMIC */ Signed-off-by: Inha Song <ideal.song@samsung.com> Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: wm5102: Mark register write sequencer control 3 readableMark Brown2014-09-261-1/+2
| | | | | | | | | | | During init the core checks if the wm5102 has finished starting by reading register 0x19 and looking at the value. This read always fails since this is not a readable register, mark it as being one. While we're at it provide a constant for the register name (as supplied by Charles Keepax). Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add missing handling for ISRC3 under/overclockedCharles Keepax2014-07-281-0/+4
| | | | | | | | Some parts have a third ISRC, this patch adds handling for the under and overclocked interrupts from this ISRC. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Map MICVDD from extcon device to the Arizona coreCharles Keepax2014-07-281-4/+16
| | | | | | | | | The extcon driver should be able to get its regulator against rather than against the main arizona device, we must add a supply mapping allowing the regulator to be located. This patch does so. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add MICVDD to mapped regulators for wm8997Charles Keepax2014-07-281-0/+1
| | | | | | | | | | | | The previous update adding MICVDD to the regulator mappings: mfd: arizona: Add MICVDD to mapped regulators Only added the mapping for wm5102 and wm5110 but wm8997 also has a MICVDD supply that needs to be mapped back to the main Arizona device. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Rid data size incompatibility warn when building for 64bitLee Jones2014-07-091-2/+2
| | | | | | | | | | Extinguishes: ../drivers/mfd/arizona-core.c: In function ‘arizona_of_get_type’: ../drivers/mfd/arizona-core.c:505:10: warning: cast from pointer to integer of different size Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add comment to explain non-devm regulator_getCharles Keepax2014-07-091-0/+6
| | | | | | | | | | To avoid someone attempting to change this regulator_get back into a devm_regulator_get put a comment in explaining that devres can't be used here as the regulator will be destroyed before devres calls regulator_put. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Use num_core_supplies in arizona_dev_exitCharles Keepax2014-07-091-1/+1
| | | | | | | | | | | Currently we call regulator_bulk_disable with ARRAY_SIZE(arizona->core_supplies), however this array may be larger than the number of supplies actually used by the chip we are dealing with. Use the provided num_core_supplies member instead, so that we only disable supplies which actually exist. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Don't use devres for DCVDDCharles Keepax2014-07-091-3/+6
| | | | | | | | | | | | | | | | | Currently the Arizona core uses a devm_regulator_get against its own device node to obtain DCVDD. The Arizona core is an MFD device and DCVDD is usually supplied by a child node (arizona-ldo1) of the core. As devres destruction for the MFD device will run after all its children have been destroyed, the regulator will be destroyed before devres calls regulator_put. This causes a warning from both the destruction of the child node, as the regulator is still open, and from the put of the regulator as the regulator device has already been destroyed. This patch handles the regulator get and put without devres to avoid this issue. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Disable DCVDD before we destroy the MFDCharles Keepax2014-07-091-1/+3
| | | | | | | | | As DCVDD is probably supplied by a child of the MFD device move its disable to before we destroy the MFD children as the regulator likely won't exist after that. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Disable PM runtime at start of driver removalCharles Keepax2014-07-091-1/+2
| | | | | | | | | | We don't want to trigger any PM runtime operations whilst we are tearing down the driver, as things the suspend and resume callbacks rely on might already have been destroyed. So disable PM runtime for the device as the first step arizona_dev_exit. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Add MICVDD to mapped regulatorsCharles Keepax2014-06-031-0/+1
| | | | | | | | | | | | Currently, MICVDD only binds because it is both the regulator name and the consumer name and we will always match against the regulator name regardless of the consumer device. If the regulator was renamed using the init_data ASoC will no longer be able to locate the supply, as it will be looking on the CODEC device where as the MICVDD consumer is on the Arizona device. Add a mapping as we do for the other regulators. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* regulator: arizona-ldo1: Move setup processing from arizona-coreCharles Keepax2014-04-181-9/+3
| | | | | | | | | | | It is more idiomatic to process things relating to the regulator in its driver. This patch moves both processing of device tree relating to the regulator and checking if the regulator is external from arizona-core into the regulator driver. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* mfd: arizona: Factor out read of device tree GPIOsCharles Keepax2014-04-181-9/+22
| | | | | | | | | This patch factors out the reading of GPIOs for the Arizona devices into a helper function. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* mfd: arizona: Use new regmap features for manual register patchCharles Keepax2014-02-261-4/+0
| | | | | | | | | | | | | | | | | | | On the wm5102 the register patches are applied manually, rather than by the regmap core. This application is wrapped in calls to regcache_cache_bypass. However, this is dangerous as other threads may be accessing the hardware at the same time as the pm_runtime operations and if they do so during the period whilst cache_bypass is enabled those writes will miss the cache when they shouldn't. Apply the register patch using the new regmap_multi_reg_write_bypassed function to avoid this problem. Also remove the call to regcache_cache_bypass from the hardware patch application as it is unneeded there and creates a similar window for writes to miss the cache. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* mfd: Constify struct mfd_cell where possibleGeert Uytterhoeven2014-01-061-4/+4
| | | | | | | | | | As of commit 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 ("mfd: Stop setting refcounting pointers in original mfd_cell arrays"), the "cell" parameter of mfd_add_devices() is "const" again. Hence make all cell data passed to mfd_add_devices() const where possible. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Merge tag 'mfd-3.13-1' of ↵Linus Torvalds2013-11-151-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next Pull MFD updates from Samuel Ortiz: "For the 3.13 merge window we have a couple of new drivers for the AMS AS3722 PMIC and for STMicroelectronics STw481x PMIC. Although this is a smaller update than usual, we also have: - Device tree support for the max77693 driver - linux/of.h inclusion for all DT compatible MFD drivers, to avoid build breakage in the future - Support for Intel Wildcat Point-LP PCH through the lpc_ich driver - A small arizona update for new wm5110 DSP registers and a few fixes - A small palmas update as well, including an of_device table addition and a few minor fixes - Two small mfd-core changes, one including a memory leak fix for when mfd_add_device() fails - Our usual round of minor cleanups and janitorial fixes" * tag 'mfd-3.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-next: (63 commits) Documentation: mfd: Update s2mps11.txt mfd: pm8921: Potential NULL dereference in pm8921_remove() mfd: Fix memory leak in mfd_add_devices() mfd: Stop setting refcounting pointers in original mfd_cell arrays mfd: wm5110: Enable micd clamp functionality mfd: lpc_ich: Add Device IDs for Intel Wildcat Point-LP PCH mfd: max77693: Fix up bug of wrong interrupt number mfd: as3722: Don't export the regmap config mfd: twl6040: Remove obsolete cleanup for i2c clientdata mfd: tps65910: Remove warning during dt node parsing mfd: lpc_sch: Ignore resource conflicts when adding mfd cells mfd: ti_am335x_tscadc: Avoid possible deadlock of reg_lock mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabled mfd: Add support for ams AS3722 PMIC mfd: max77693: Include linux/of.h header mfd: tc3589x: Detect the precise version mfd: omap-usb: prepare/unprepare clock while enable/disable mfd: max77686: Include linux/of.h header mfd: max8907: Include linux/of.h header mfd: max8997: Include linux/of.h header ...
| * mfd: arizona: Correct handling of device tree gpio defaultsCharles Keepax2013-10-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When setting GPIO defaults we are required to make a distinction between writing 0x0000 to the registers and leaving them untouched. When we receive between 0x0000 and 0xFFFF (inclusive) from either Platform Data or Device Tree, we should write the provided configuration to the device. Conversely, when we receive >0xFFFF we should leave the device configuration at its default setting. This patch fixes a bug and ensures that configuration 0x0000 isn't mistakenly written when the intention was to keep the default one. Reported-by: Heather Lomond <heather.lomond@wolfsonmicro.com> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
| * mfd: arizona: Only attempt to parse DT if platform data was not passedLee Jones2013-10-231-2/+2
| | | | | | | | | | | | | | | | | | If platform data is passed when probing the device then it should take precedence over Device Tree. This patch saves cycles in the pdata case and prevents error messages when DT is not passed. Reported-by: Mark Brown <broonie@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | mfd: arizona: Specify supply mappings for Arizona CODECsCharles Keepax2013-10-231-3/+29
|/ | | | | | | | | | The CODEC power supplies should be looked up on the Arizona device as they will be created here by device tree also update the only user of non-device tree bindings. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* mfd: arizona: Move regulator disable to after marking cache onlyCharles Keepax2013-08-141-1/+1
| | | | | | | | If we disable DCVDD before we mark the cache as cache only, we might attempt to write to the chip whilst it is powered down and lose a write. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: arizona: Integrate wm8997 into Arizona mfdCharles Keepax2013-06-181-0/+27
| | | | | | | | | | | The wm8997 is a compact, high-performance audio hub CODEC with SLIMbus interfacing, for smartphones, tablets and other portable audio devices based on the Arizona platform. This patch integrates the wm8997 into the Arizona mfd. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: arizona: Change fast_start pdata name to better reflect functionalityCharles Keepax2013-05-211-1/+1
| | | | | | | | | | | The bit in the register enables MICBIAS fast startup when clear not when set. This patch changes the name of this pdata option to soft_start to better match the functionality. We rename rather than invert the handling to keep the same default functionality, which is fast start active. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: arizona: Support use of external DCVDDMark Brown2013-05-201-0/+43
| | | | | | | | When the device is used with an external DCVDD supply instead of the internal LDO1 then an extra step is required when suspending and resuming the device. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: Add device tree bindings for Arizona class devicesMark Brown2013-05-201-0/+69
| | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: arizona: Disable interrupts during suspendMark Brown2013-05-171-1/+22
| | | | | | | | | | We aren't able to handle interrupts after the device has suspended since we need to runtime resume it in order to do so but the controller may not be available any more. Handle this in the same way as we handle a similar issue on resume. Reported-by: Chuansheng Liu <chuansheng.liu@intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: arizona: Add missing cleanup on removeMark Brown2013-05-171-0/+5
| | | | | | | We'd forgotten to disable /RESET or the regulators. Practically speaking this code is unlikely to ever be run. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: wm5102: Manually apply register patchCharles Keepax2013-05-171-0/+12
| | | | | | | | Future updates will require us to manually apply the register patch for wm5102. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: arizona: Read the device identification information after bootMark Brown2013-05-171-31/+49
| | | | | | | | Future devices may not fully report the device identification information until their boot sequence is complete so defer acting on these until that has finished. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* mfd: wm5102: Don't wait for boot when boot sequencer is disabledCharles Keepax2013-04-081-4/+18
| | | | | | | | | | As we are using a custom boot sequence we don't need to wait for the standard boot sequence in device init when the normal write sequence is disabled. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: arizona: Wait for internal clocks to startup after resetCharles Keepax2013-04-081-1/+5
| | | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: arizona: Hold device in reset while ramping suppliesMark Brown2013-04-081-13/+13
| | | | | | | | | | | | Acquire the /RESET GPIO before we enable regulators and hold the device in reset while the regulators power up in order to improve robustness during the initial power up. Also fix the error path so that the device is left in reset while we're at it. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: wm5102: Deactivate standard boot sequenceCharles Keepax2013-04-081-5/+5
| | | | | | | | | | This patch deactivates the standard, currently noop, boot sequence because we now have facilities in place for running a custom boot sequence. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: arizona: Add a hardware patch mechanismCharles Keepax2013-04-081-0/+109
| | | | | | | | | This patch adds facilities for apply a register patch contained within the chip using the write sequencer. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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