- 27 Apr, 2017 40 commits
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Quentin Schulz authored
The X-Powers AXP20X and AXP22X PMICs have multiple ADCs. They expose the battery voltage, battery charge and discharge currents, AC-in and VBUS voltages and currents, 2 GPIOs muxable in ADC mode and PMIC temperature. This adds support for most of AXP20X and AXP22X ADCs. Signed-off-by:
Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by:
Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by:
Chen-Yu Tsai <wens@csie.org> Reviewed-by:
Jonathan Cameron <jic23@kernel.org> Signed-off-by:
Lee Jones <lee.jones@linaro.org>
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Tony Lindgren authored
The cpcap INTS registers are for getting the value of the line, not for configuring the type. Fixes: 56e1d40d ("mfd: cpcap: Add minimal support") Reviewed-By:
Sebastian Reichel <sre@kernel.org> Tested-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
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Tony Lindgren authored
We should use ack_invert as the int_read_and_clear() in the Motorola kernel tree does "ireg_val & ~mreg_val" before writing to the mask register. Fixes: 56e1d40d ("mfd: cpcap: Add minimal support") Tested-by:
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Tony Lindgren authored
I made a mistake assuming the device tree configuration for interrupt triggering was somehow passed to the SPI device but it's not. In the Motorola Linux kernel tree CPCAP PMIC is configured as a rising edge triggered interrupt, but then then it's interrupt handler keeps looping until the GPIO line goes down. So the CPCAP interrupt is clearly a level interrupt and not an edge interrupt. Earlier when I tried to configure it as level interrupt using the device tree, I did not account that the triggering only gets passed to the SPI core and it also needs to be specified in the CPCAP driver when we do devm_regmap_add_irq_chip(). Fixes: 56e1d40d ("mfd: cpcap: Add minimal support") Signed-off-by:
Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by:
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Quentin Schulz authored
This patch removes the sun4i touchscreen controller binding documentation since it has been merged with the sun4i GPADC binding documentation. Signed-off-by:
Rob Herring <robh@kernel.org> Acked-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Quentin Schulz authored
This patch adds documentation for the A33 GPADC binding. Signed-off-by:
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Quentin Schulz authored
The X-Powers AXP20X and AXP22X PMICs can have a battery as power supply. This patch adds the AXP20X/AXP22X battery driver to the MFD cells of the AXP209, AXP221 and AXP223 MFD. Signed-off-by:
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Steve Twiss authored
MFD support for DA9061 is provided as part of the DA9062 device driver. The registers header file adds two new chip variant IDs defined in DA9061 and DA9062 hardware. The core header file adds new software enumerations for listing the valid DA9061 IRQs and a da9062_compatible_types enumeration for distinguishing between DA9061/62 devices in software. The core source code adds a new .compatible of_device_id entry. This is extended from DA9062 to support both "dlg,da9061" and "dlg,da9062". The .data entry now holds a reference to the enumerated device type. A new regmap_irq_chip model is added for DA9061 and this supports the new list of regmap_irq entries. A new mfd_cell da9061_devs[] array lists the new sub system components for DA9061. Support is added for a new DA9061 regmap_config which lists the correct readable, writable and volatile ranges for this chip. The probe function uses the device tree compatible string to switch on the da9062_compatible_types and configure the correct mfd cells, irq chip and regmap config. Kconfig is updated to reflect support for DA9061 and DA9062 PMICs. Signed-off-by:
Steve Twiss <stwiss.opensource@diasemi.com> Signed-off-by:
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Steve Twiss authored
Extend existing DA9062 binding information to include the DA9061 PMIC for MFD core and regulators. Add a da9062-onkey link to the existing onkey binding file. Add a da9062-thermal link to the new temperature monitoring binding file. Delete the da9062-watchdog section and replace it with a link to the new DA9061/62 binding information file. Acked-by:
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Hugues Fruchet authored
GPIO bits clearing on pins assigned to STMPE1600 had no effects due to missing "clear registers" settings within stmpe1600_regs[]. STMPE1600 does not have dedicated "clear registers", but single "set/clear registers", hence stmpe1600_regs[] "clear registers" (STMPE_IDX_GPCR_XXX) must be set to same value as "set registers" (STMPE_IDX_GPSR_XXX), ie STMPE1600_REG_GPSR_XXX. Signed-off-by:
Hugues Fruchet <hugues.fruchet@st.com> Reviewed-by:
Patrice Chotard <patrice.chotard@st.com> Signed-off-by:
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Kuppuswamy Sathyanarayanan authored
In the following code block, BXTWC_DEVICE1_ADDR value is already fixed and hence there no need to check for if (!i2c_addr) in every ipc read/write calls. Even if this check is required it can be moved to probe function. i2c_addr = BXTWC_DEVICE1_ADDR; if (!i2c_addr) { dev_err(pmic->dev, "I2C address not set\n"); return -EINVAL; } This patch remove this extra check and adds some NULL parameter checks. Signed-off-by:Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> Signed-off-by:
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Boris Brezillon authored
Add a ->resume() hook to make sure the EBI dev configs are correctly restored when resuming the platform. Signed-off-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by:
Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by:
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Boris Brezillon authored
ebid->numcs is never assigned, set it to numcs after allocating the EBI dev object. Signed-off-by:
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Boris Brezillon authored
The EBI block is not only available on at91 SoCs, but also on avr32 ones. Change the structure and function prefixes from at91_ebi to atmel_ebi to match this fact and make the prefix and driver name consistent. Signed-off-by:
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Boris Brezillon authored
All macros prefixed with AT91[SAM9]_SMC have been replaced by equivalent definitions prefixed with ATMEL_SMC, and the at91sam9_smc_xxxx() helpers are no longer used. Drop these definitions before someone starts using them again. Signed-off-by:
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Boris Brezillon authored
Turn the ->ebi_csa reg field into a simple offset that can be used with with the matrix regmap. Using reg fields was overkill for this use case. Signed-off-by:
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Boris Brezillon authored
New helpers/macros have been to atmel-smc.h introduced to simplify SMC regs manipulation. Rework the code to use those helpers, and simplify the ->xlate_config(), ->get_config() and ->apply_config() implementations. SMC configs are now stored in a struct atmel_smc_cs_conf object that directly contains registers values, which should help implementing ->suspend()/->resume() hooks. We can also get rid of those regmap fields (and the associated ->init() hook) which are not longer needed thanks to the atmel_[h]smc_cs_conf_{apply,get}() helpers. Signed-off-by: -
Boris Brezillon authored
These new helpers + macro definitions are meant to replace the old ones which are unpractical to use. Note that the macros and function prefixes have been intentionally changed to ATMEL_[H]SMC_XX and atmel_[h]smc_ to reflect the fact that this IP is also embedded in avr32 SoCs (and not only in at91 ones). Signed-off-by:
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Belen Sarabia authored
devm_ioremap_resource does checks on the resource. No need to duplicate this in the driver. Signed-off-by:
Belén Sarabia <belensarabia@gmail.com> Signed-off-by:
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Keerthy authored
POWERHOLD signal has higher priority over the DEV_ON bit. So power off will not happen if the POWERHOLD is held high. Hence reset the MUX to GPIO_7 mode to release the POWERHOLD and the DEV_ON bit to take effect to power off the PMIC. PMIC Power off happens in dire situations like thermal shutdown so irrespective of the POWERHOLD setting go ahead and turn off the powerhold. Currently poweroff is broken on boards that have powerhold enabled. This fixes poweroff on those boards. Signed-off-by:
Keerthy <j-keerthy@ti.com> Signed-off-by:
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Julia Cartwright authored
The tc6393xb mfd driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by:
Julia Cartwright <julia@ni.com> Signed-off-by:
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Julia Cartwright authored
The t7l66xb mfd driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by:
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Julia Cartwright authored
The asic3 mfd driver currently implements an irq_chip for handling interrupts; due to how irq_chip handling is done, it's necessary for the irq_chip methods to be invoked from hardirq context, even on a a real-time kernel. Because the spinlock_t type becomes a "sleeping" spinlock w/ RT kernels, it is not suitable to be used with irq_chips. A quick audit of the operations under the lock reveal that they do only minimal, bounded work, and are therefore safe to do under a raw spinlock. Signed-off-by:
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Andy Shevchenko authored
For better understanding of relationship between headers and modules rename: intel_bxtwc.h -> intel_soc_pmic_bxtwc.h While here, remove file name from the file itself. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Andy Shevchenko authored
There is no need to include intel_soc_pmic.h into header which doesn't require it. Signed-off-by:
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Charles Keepax authored
Currently, we specify the timeout in terms of the number of polls but it is more clear from a user of the functions perspective to specify the timeout directly in milliseconds, as such update the function to these new semantics. Additionally, arizona_poll_reg essentially hard-codes regmap_read_poll_timeout, update the implementation to use regmap_read_poll_timeout. We still keep arizona_poll_reg around as regmap_read_poll_timeout is a macro so rather than expand this for each caller keep it wrapped in arizona_poll_reg. Whilst we are doing this make the timeouts a little more generous as the previous system had a bit more slack as it was done as a delay per iteration of the loop whereas regmap_read_poll_timeout compares ktime's. Signed-off-by:
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Charles Keepax authored
Register addresses are normally displayed in hex throughout the Arizona driver. Update the arizona_poll_reg function to follow this convention. Signed-off-by:
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Charles Keepax authored
arizona_poll_reg already returns ETIMEDOUT if we don't see the expected register changes before the time out, so remove pointless local setting of ETIMEDOUT. Signed-off-by:
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Joe Perches authored
To enable eventual removal of pr_warning This makes pr_warn use consistent for drivers/mfd Prior to this patch, there were 4 uses of pr_warning and 9 uses of pr_warn in drivers/mfd Signed-off-by:
Joe Perches <joe@perches.com> Signed-off-by:
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Sean Wang authored
Align the placement as which the mfd_cell of LED is defined as the other members done on the structure. Signed-off-by:
Sean Wang <sean.wang@mediatek.com> Signed-off-by:
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Sean Wang authored
This patch adds description for LED as the sub-module on MT6397/MT6323 multifunction device. Signed-off-by:
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Quentin Schulz authored
The CHRG_CTRL1 and CHRG_CTRL2 registers are made for controlling different battery charging settings such as the constant current charge value. The AXP22X also have a third register CHRG_CTRL3 which has settings for battery charging too. This adds the CHRG_CTRL1, CHRG_CTRL2 and CHRG_CTRL3 registers to the list of writeable registers for AXP20X and AXP22X PMICs. Signed-off-by:
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Quentin Schulz authored
The X-Powers AXP20X and AXP22X PMICs expose the status of AC power supply. This adds the AC power supply driver to the MFD cells of the AXP22X PMICs. Signed-off-by:
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Quentin Schulz authored
This adds the AXP20X/AXP22x ADCs driver to the mfd cells of the AXP209, AXP221 and AXP223 MFD. Signed-off-by:
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Quentin Schulz authored
The registers 0x56 and 0x57 of AXP22X PMIC store the value of the internal temperature of the PMIC. This patch modifies the name of these registers from AXP22X_PMIC_ADC_H/L to AXP22X_PMIC_TEMP_H/L so their purpose is clearer. Signed-off-by:
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Andrew F. Davis authored
The SPI interface is mostly a copy/paste from the I2C interface with some minor renaming for consistency. "Client" is an I2C specific term that was left in the SPI remove path, rename this here. Signed-off-by:
Andrew F. Davis <afd@ti.com> Signed-off-by:
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Thor Thayer authored
This patch adds documentation for the Altera A10-SR Reset Controller DT bindings. Signed-off-by:
Thor Thayer <thor.thayer@linux.intel.com> Acked-by:
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Thor Thayer authored
Add Peripheral PHY Reset Controller to the Arria10 Development Kit System Resource Chip's MFD. Signed-off-by:
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Andy Shevchenko authored
After commit 028af594 ("mfd: intel-lpss: Pass SDA hold time to I2C host controller driver") the driver still has a non-used variable. Remove it here. Signed-off-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
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Doug Anderson authored
This is a sucky change to bump up the time we'll wait for the EC. Why is it sucky? If 200ms for a transfer is a common thing it will have a massively bad impact on keyboard responsiveness. It still seems like a good idea to do this, though, because we have a gas gauge that claims that in an extreme case it could stretch the i2c clock for 144ms. It's not a common case so it shouldn't affect responsiveness, but it can happen. It's much better to have a single slow keyboard response than to start returning errors when we don't have to. In newer EC designs we should probably implement a virtual battery to respond to the kernel to insulate the kernel from these types of issues. Signed-off-by:
Doug Anderson <dianders@chromium.org> Signed-off-by:
Enric Balletbo i Serra <enric.balletbo@collabora.com> Signed-off-by:
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