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path: root/drivers/mfd/mc13xxx-spi.c
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2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-4/+1
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-07regmap: split up regmap_config.use_single_rwDavid Frey1-1/+2
Split regmap_config.use_single_rw into use_single_read and use_single_write. This change enables drivers of devices which only support bulk operations in one direction to use the regmap_bulk_*() functions for both directions and have their bulk operation split into single operations only when necessary. Update all struct regmap_config instances where use_single_rw==true to instead set both use_single_read and use_single_write. No attempt was made to evaluate whether it is possible to set only one of use_single_read or use_single_write. Signed-off-by: David Frey <dpfrey@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28spi: Drop owner assignment from spi_driversAndrew F. Davis1-1/+0
An spi_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Andrew F. Davis <afd@ti.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-01-22mfd: mc13xxx: i2c/spi: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-19mfd: mc13xxx: Add missing spi_setup()Alexander Shiyan1-0/+3
The probe routine should call spi_setup() to configure the SPI bus so it can properly communicate with the device. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-03-19mfd: mc13xxx: Limit maximum SPI speedAlexander Shiyan1-0/+2
The patch adds the maximum speed limit in accordance with the PMIC datasheet if other value is not given in the devicetree description or board data. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-21mfd: mc13xxx: Simplify probe() & remove()Alexander Shiyan1-13/+6
This patch simplifies probe() and remove() functions by moving some initialisation code out from the I2C/SPI init() and exit() functions and into the core driver. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-01-21mfd: mc13xxx: Remove unnecessary spi_set_drvdata()Jingoo Han1-1/+0
The driver core clears the driver data to NULL after device_release or on probe failure. Thus, it is not needed to manually clear the device driver data to NULL. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-09-25mfd: mc13xxx: Move SPI erratum workaround into SPI I/O functionMark Brown1-0/+5
Move the workaround for double sending AUDIO_CODEC and AUDIO_DAC writes into the SPI core, aiding refactoring to eliminate the ASoC custom I/O functions and avoiding the extra writes for I2C. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-04-09mfd: mc13xxx: Use spi_get_drvdata() and spi_set_drvdata()Jingoo Han1-3/+3
Use the wrapper functions for getting and setting the driver data using spi_device instead of using dev_{get|set}_drvdata with &spi->dev, so we can directly pass a struct spi_device. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-12-16Merge tag 'mfd-3.8-1' of ↵Linus Torvalds1-13/+16
git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
2012-11-28mfd: remove use of __devexitBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-28mfd: remove use of __devexit_pBill Pemberton1-1/+1
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Acked-by: David Brown <davidb@codeaurora.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-06mfd: mc13xxx: Add support for mc34708Uwe Kleine-König1-0/+4
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Reilly <marc@cpdesign.com.au> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-06mfd: mc13xxx: Change probing details for mc13xxx devicesUwe Kleine-König1-13/+12
This removes auto-detection of which variant of mc13xxx is used because mc34708 uses a different layout in the revision register that doesn't allow differentiation any more. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Reilly <marc@cpdesign.com.au> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-16mfd: Drop modifying mc13xxx driver's id_table in probeUwe Kleine-König1-6/+0
This was introduced in commit 876989d (mfd: Add device tree probe support for mc13xxx) for spi and later while introducing support for i2c copied to the i2c driver. Modifying driver details is very strange, for example probing an mc13892 device (instantiated via dt) removes the driver's ability to handle (traditionally probed) mc13783 devices in this case. I'm not aware of any problems that make this hack necessary and if there were some, they'd have to be fixed in the spi/i2c core, not in a driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-09mfd: Fix mc13xxx-spi merge conflictAxel Lin1-1/+3
This patch fixes conflict between commit 8ae3559 "mfd: mc13xxx workaround SPI hardware bug on i.Mx" and commit 10c7a5d "mfd: Use devm_* APIs for mc13xxx". commit 8ae3559 changes regmap_init_spi to regmap_init. So now we need to use devm_regmap_init rather than devm_regmap_init_spi. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-09mfd: Use devm_* APIs for mc13xxxAxel Lin1-5/+2
Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-09mfd: mc13xxx workaround SPI hardware bug on i.MxPhilippe Rétornaz1-1/+64
The MC13xxx PMIC is mainly used on i.Mx SoC. On those SoC the SPI hardware will deassert CS line as soon as the SPI FIFO is empty. The MC13xxx hardware is very sensitive to CS line change as it corrupts the transfer if CS is deasserted in the middle of a register read or write. It is not possible to use the CS line as a GPIO on some SoC, so we need to workaround this by implementing a single SPI transfer to access the PMIC. Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Marc Reilly <marc@cpdesign.com.au> Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-07-09mfd: Fix mc13xxx SPI regmapPhilippe Rétornaz1-1/+1
This fix the SPI regmap configuration, the wrong write flag was used. Also, bits_per_word should not be set as the regmap spi implementation uses a 8bits transfert granularity. Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch> Tested-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-05-01mfd: Move the mc13xxx-core spi specific code into a separate moduleMarc Reilly1-0/+140
All spi specific code is moved into a new module. The mc13xxx struct moves to a new local include file by necessity. A new config choice selects the SPI bus type support and by default is value of SPI_MASTER to remain compatible with existing configs. Signed-off-by: Marc Reilly <marc@cpdesign.com.au> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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