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2012-06-23regulator: palmas: fix regmap offsets for enable/disableGraeme Gregory
I forgot to apply the offsets for the regmap helper functions for enable/disable on SMPS10 and the LDO regulators. This means regulators will not enable/disable correctly. Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Tested-by: Sebastien Guiriec <s-guiriec@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-20regulator: tps6524x: Fix get_voltage_sel for fixed voltageAxel Lin
get_voltage_sel() should return selector rather than voltage. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17regulator: tps65023: Fix mask for LDOs output voltage select controlAxel Lin
According to the datasheet: The LDO_CTRL registers are used to set the output voltage of LDO1 and LDO2. LDO_CTRL[7] and LDO_CTRL[3] are reserved and should always be written to 0. Thus the mask for TPS65023_LDO_1 and TPS65023_LDO_2 should be 0x07 and 0x70 respectively. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17regulator: Change db8500-prcmu match names to reflect Device TreeLee Jones
The 'name' field in 'struct of_regulator_match' expects to match with its corresponding regulator device node in the Device Tree. This patch renames each of the regulators in the db8500-prcum regulator driver so this is true. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17regulator: Change ab8500 match names to reflect Device TreeLee Jones
The 'name' field in 'struct of_regulator_match' expects to match with its corresponding regulator device node in the Device Tree. This patch renames each of the regulators in the ab8500 regulator driver so this is true. Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-17regulator: Fix the s5m8767a problem of the division by nullSangbeom Kim
If ramp_delay is 0, delay value can be divided by zero. This patch can fix the problem. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-08regulator: core: Properly handle the case min_uV < rdev->desc->min_uV in ↵Axel Lin
map_voltage_linear Properly handle the case if the specified min_uV is less than the voltage given by the lowest selector. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-05regulator: max8649: fix missing regmap in rdevHaojian Zhuang
In probe(), rdev->regmap must be assigned. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04regulator: gpio-regulator: populate selector from set_voltageHeiko Stübner
This was missing until now and the underlying _regulator_do_set_voltage is using this value when calling list_voltage. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04regulator: gpio-regulator: Fix finding of smallest valueHeiko Stübner
Commit 4dbd8f63f07a (regulator: gpio-regulator: Set the smallest voltage/current in the specified range) forgot to set the newly introduced best_val. Therefore it stayed always at INT_MAX thus breaking the setting of the voltage. Included is also an init value for target, as warnings about a possibly uninitialised target started appearing with this fix. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04regulator: gpio-regulator: do not pass drvdata pointer as referenceHeiko Stübner
Commit c172708d38a4 (regulator: core: Use a struct to pass in regulator runtime configuration) added the drvdata pointer only per reference to the new config array in the gpio-regulator. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04regulator: anatop: Use correct __devexit_p annotationAxel Lin
__devexit functions are discarded when CONFIG_HOTPLUG is not set, so the symbol needs to be referenced carefully. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-06-04regulator: palmas: Fix wrong kfree callsAxel Lin
The devm_kzalloc function eliminates the need for manual resource releasing and simplify error handling. Resources allocated by devm_* are freed automatically on driver detach. Thus adding kfree calls here will introduce double free bug. The memory of desc array and the pointers to the rdev[] are allocated by devm_kzalloc call for struct palmas_pmic. struct palmas_pmic { struct palmas *palmas; struct device *dev; struct regulator_desc desc[PALMAS_NUM_REGS]; struct regulator_dev *rdev[PALMAS_NUM_REGS]; struct mutex mutex; int smps123; int smps457; int range[PALMAS_REG_SMPS10]; }; Which means we should not call kfree for pmic->rdev and pmic->desc. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-29Merge tag 'mfd-3.5-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFD changes from Samuel Ortiz: "Besides the usual cleanups, this one brings: * Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton, ST-E's STAX211, Samsung's MAX77693 and TI's LM3533. * Device tree support for the twl6040, tps65910, da9502 and ab8500 drivers. * Fairly big tps56910, ab8500 and db8500 updates. * i2c support for mc13xxx. * Our regular update for the wm8xxx driver from Mark." Fix up various conflicts with other trees, largely due to ab5500 removal etc. * tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits) mfd: Fix build break of max77693 by adding REGMAP_I2C option mfd: Fix twl6040 build failure mfd: Fix max77693 build failure mfd: ab8500-core should depend on MFD_DB8500_PRCMU gpio: tps65910: dt: process gpio specific device node info mfd: Remove the parsing of dt info for tps65910 gpio mfd: Save device node parsed platform data for tps65910 sub devices mfd: Add r_select to lm3533 platform data gpio: Add Intel Centerton support to gpio-sch mfd: Emulate active low IRQs as well as active high IRQs for wm831x mfd: Mark two lm3533 zone registers as volatile mfd: Fix return type of lm533 attribute is_visible mfd: Enable Device Tree support in the ab8500-pwm driver mfd: Enable Device Tree support in the ab8500-sysctrl driver mfd: Add support for Device Tree to twl6040 mfd: Register the twl6040 child for the ASoC codec unconditionally mfd: Allocate twl6040 IRQ numbers dynamically mfd: twl6040 code cleanup in interrupt initialization part mfd: Enable ab8500-gpadc driver for Device Tree mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver ...
2012-05-22Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial updates from Jiri Kosina: "As usual, it's mostly typo fixes, redundant code elimination and some documentation updates." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (57 commits) edac, mips: don't change code that has been removed in edac/mips tree xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer lib: Change mail address of Oskar Schirmer net: Change mail address of Oskar Schirmer arm/m68k: Change mail address of Sebastian Hess i2c: Change mail address of Oskar Schirmer net: Fix tcp_build_and_update_options comment in struct tcp_sock atomic64_32.h: fix parameter naming mismatch Kconfig: replace "--- help ---" with "---help---" c2port: fix bogus Kconfig "default no" edac: Fix spelling errors. qla1280: Remove redundant NULL check before release_firmware() call remoteproc: remove redundant NULL check before release_firmware() qla2xxx: Remove redundant NULL check before release_firmware() call. aic94xx: Get rid of redundant NULL check before release_firmware() call tehuti: delete redundant NULL check before release_firmware() qlogic: get rid of a redundant test for NULL before call to release_firmware() bna: remove redundant NULL test before release_firmware() tg3: remove redundant NULL test before release_firmware() call typhoon: get rid of redundant conditional before all to release_firmware() ...
2012-05-21Merge tag 'regulator-3.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator updates from Mark Brown: "The major thing here is the addition of some helpers to factor code out of drivers, making a fair proportion of regulators much more just data rather than code which is nice. - Helpers in the core for regulators using regmap, providing generic implementations of the enable and voltage selection operations which just need data to describe them in the drivers. - Split out voltage mapping and voltage setting, allowing many more drivers to take advantage of the infrastructure for selectors. - Loads and loads of cleanups from Axel Lin once again, including many changes to take advantage of the above new framework features - New drivers for Ricoh RC5T583, TI TPS62362, TI TPS62363, TI TPS65913, TI TWL6035 and TI TWL6037. Some of the registration changes to support the core refactoring caused so many conflicts that eventually topic branches were abandoned for this release." * tag 'regulator-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (227 commits) regulator: tps65910: use of_node of matched regulator being register regulator: tps65910: dt: support when "regulators" node found regulator: tps65910: add error message in case of failure regulator: tps62360: dt: initialize of_node param for regulator register. regulator: tps65910: use devm_* for memory allocation regulator: tps65910: use small letter for regulator names mfd: tpx6586x: Depend on regulator regulator: regulator for Palmas Kconfig regulator: regulator driver for Palmas series chips regulator: Enable Device Tree for the db8500-prcmu regulator driver regulator: db8500-prcmu: Separate regulator registration from probe regulator: ab3100: Use regulator_map_voltage_iterate() regulator: tps65217: Convert to set_voltage_sel and map_voltage regulator: Enable the ab8500 for Device Tree regulator: ab8500: Split up probe() into manageable pieces regulator: max8925: Remove check_range function and max_uV from struct rc5t583_regulator_info regulator: max8649: Remove unused check_range() function regulator: rc5t583: Remove max_uV from struct rc5t583_regulator_info regulator: da9052: Convert to set_voltage_sel and map_voltage regulator: max8952: Use devm_kzalloc ...
2012-05-20regulator: tps65910: use of_node of matched regulator being registerLaxman Dewangan
After getting matched regulators by using of_regulator_match(), initialize the config.of_node of regulator being register with of_regulator_match.of_node of that regulator. This is require for supporting regulator consumers in dt. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-20regulator: tps65910: dt: support when "regulators" node foundLaxman Dewangan
The device tree binding for the tps65910 is described as: tps65911 { reg = <0x2d> ::::::::: regulators { compatible = "ti,tps65911"; ldo1_reg: ldo1 { /** regulator entry */ }; ldo2_reg: ldo2 { /** regulator entry */ }; :::::::::: }; }; Support the regulators functionality only when there is "regulators" child node available for tps65910. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-20regulator: tps65910: add error message in case of failureLaxman Dewangan
Prints error message whenever there is failure on resource allocation. Also used dev_* to print messages instead of pr_* Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-20regulator: tps62360: dt: initialize of_node param for regulator register.Laxman Dewangan
Initialize config.of_node for regulator before registering. This is needed for DT based regulator support. Regulator stores this of_node value in rdev->dev.of_node and used for lookup when client ask for regulator_get(). Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-20mfd: Make anatop register accessor more flexible and rename meaningfullyRichard Zhao
- rename to anatop_read_reg and anatop_write_reg - anatop_read_reg directly return reg value - anatop_write_reg write reg with mask Signed-off-by: Richard Zhao <richard.zhao@freescale.com> Reviewed-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-20mfd: Convert wm831x to irq_domainMark Brown
The modern idiom is to use irq_domain to allocate interrupts. This is useful partly to allow further infrastructure to be based on the domains and partly because it makes it much easier to allocate virtual interrupts to devices as we don't need to allocate a contiguous range of interrupt numbers. Convert the wm831x driver over to this infrastructure, using a legacy IRQ mapping if an irq_base is specified in platform data and otherwise using a linear mapping, always registering the interrupts even if they won't ever be used. Only boards which need to use the GPIOs as interrupts should need to use an irq_base. This means that we can't use the MFD irq_base management since the unless we're using an explicit irq_base from platform data we can't rely on a linear mapping of interrupts. Instead we need to map things via the irq_domain - provide a conveniencem function wm831x_irq() to save a small amount of typing when doing so. Looking at this I couldn't clearly see anything the MFD core could do to make this nicer. Since we're not supporting device tree yet there's no meaningful advantage if we don't do this conversion in one, the fact that the interrupt resources are used for repeated IP blocks makes accessor functions for the irq_domain more trouble to do than they're worth. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-20mfd: Commonize tps65910 regmap access through headerRhyland Klein
This change removes the read/write callback functions in favor of common regmap accessors inside the header file. This change also makes use of regmap_read/write for single register access which maps better onto what this driver actually needs. Signed-off-by: Rhyland Klein <rklein@nvidia.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-19regulator: tps65910: use devm_* for memory allocationLaxman Dewangan
use the devm_* apis for memory allocation. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-19regulator: tps65910: use small letter for regulator namesLaxman Dewangan
Use the small-letter for names of different regulator to match the names with dt binding documents. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-19regulator: regulator for Palmas KconfigGraeme Gregory
Add the Kconfig/Makefile stuff for the palmas regulator driver Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-19regulator: regulator driver for Palmas series chipsGraeme Gregory
Palmas has both Switched Mode (SMPS) and Linear (LDO) regulators in it. This regulator driver allows software control of these regulators. The regulators available on Palmas series chips vary depending on the muxing. This is handled automatically in the driver by reading the mux info from OTP. Signed-off-by: Graeme Gregory <gg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: Enable Device Tree for the db8500-prcmu regulator driverLee Jones
Here we use the previous regulator register code separated from probe to register each of the regulators mentioned in Device Tree. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: db8500-prcmu: Separate regulator registration from probeLee Jones
This will provide us with a convenient way to register regulators when booting with Device Tree both enabled & disabled and will save us a great deal of code duplication in time. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: ab3100: Use regulator_map_voltage_iterate()Axel Lin
regulator_map_voltage_iterate() is for drivers implementing set_voltage_sel() and list_voltage() to use it as their map_voltage() operation. In this case, regulator_map_voltage_iterate() happen to be doing the same thing as ab3100_get_best_voltage_index() function. So we can use it to replace ab3100_get_best_voltage_index() function. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: tps65217: Convert to set_voltage_sel and map_voltageAxel Lin
Convert tps65217_pmic_ops to use set_voltage_sel and map_voltage. After this convertion, we can also use tps65217_pmic_set_voltage_sel() for set_voltage_sel callback of tps65217_pmic_ldo1_ops. Thus this patch also removes tps65217_pmic_ldo1_set_voltage_sel() function. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: Enable the ab8500 for Device TreeLee Jones
Here we setup the ab8500 regulator driver for DT. We first do this in the normal way, by providing a match structure during initialisation, but then we provide information so that whilst probing we can use existing data structures to do DT look-ups. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-18regulator: ab8500: Split up probe() into manageable piecesLee Jones
ab8500's probe() function is becoming quite large, so in the lead up to Device Tree enablement which will fork the thread of execution this patch splits it into 3 main areas; basic error checking will remain in probe(), but regulator register initialisation and regulator registration have been moved to their own functions which will be called in sequence by probe() and the DT equivalent. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-17regulator: max8925: Remove check_range function and max_uV from struct ↵Axel Lin
rc5t583_regulator_info This driver has been converted to use regulator_map_voltage_linear and set_voltage_sel now. regulator_map_voltage_linear will check the the voltage falls within specified range. The check_range() function and max_uV field are not used now, remove them. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-17regulator: max8649: Remove unused check_range() functionAxel Lin
This driver has been converted to use regulator_map_voltage_linear and set_voltage_sel now. regulator_map_voltage_linear will check the the voltage falls within specified range. The check_range() function is not used, remove it. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-17regulator: rc5t583: Remove max_uV from struct rc5t583_regulator_infoAxel Lin
This driver has been converted to set_voltage_sel and regulator_map_voltage_linear. regulator_map_voltage_linear will check the voltage falls within specified range. The max_uV field is not used now, remove it. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-16regulator: da9052: Convert to set_voltage_sel and map_voltageAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-16regulator: max8952: Use devm_kzallocAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-16regulator: isl6271a: Convert to set_voltage_sel and regulator_map_voltage_linearAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-16regulator: isl6271a: Convert to get_voltage_selAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-16regulator: isl6271a: Use regulator_list_voltage_linear()Axel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-15regulator: max8660: Convert to set_voltage_sel and regulator_map_voltage_linearAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-15regulator: max8660: Convert to get_voltage_selAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-15regulator: max8660: Convert to regulator_list_voltage_linear()Axel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-15regulator: da903x: Kill da903x_[get|set]_[ldo12|ldo14]_voltage_sel() functionsAxel Lin
Now the implementation of da903x_set_voltage_sel, da9030_set_ldo14_voltage_sel, and da9034_set_ldo12_voltage_sel are exactly the same. da903x_get_voltage_sel, da9030_get_ldo14_voltage_sel and da9034_get_ldo12_voltage_sel are exactly the same. So we can use da903x_[get|set]_voltage_sel and kill other functions. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-15regulator: da903x: Convert to set_voltage_sel and map_voltageAxel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-15regulator: da903x: Convert to regulator_list_voltage_linear()Axel Lin
Use regulator_list_voltage_linear() to replace da903x_list_voltage(). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-14regulator: tps62360: support force PWM mode via regulator modeLaxman Dewangan
Change the mechanism of enabling the force PWM mode through regulator set mode. This can be dynamically configured now. In the REGULATOR_MODE_FAST the force PWM is enabled and in REGULATOR_MODE_NORMAL the force PWM is disabled. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-14regulator: rc5t583: Convert to regulator_set_voltage_sel_regmap and ↵Axel Lin
regulator_map_voltage_linear Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-05-14regulator: rc5t583: Convert to regulator_list_voltage_linear()Axel Lin
Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>