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* mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatileSamuel Holland2020-01-241-1/+1
| | | | | | | | | | | | | | | | On AXP288 and newer PMICs, bit 7 of AXP20X_VBUS_IPSOUT_MGMT can be set to prevent using the VBUS input. However, when the VBUS unplugged and plugged back in, the bit automatically resets to zero. We need to set the register as volatile to prevent regmap from caching that bit. Otherwise, regcache will think the bit is already set and not write the register. Fixes: cd53216625a0 ("mfd: axp20x: Fix axp288 volatile ranges") Cc: stable@vger.kernel.org Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-4/+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>
* mfd: axp20x: Add USB power supply mfd cell to AXP803Chen-Yu Tsai2019-05-141-0/+5
| | | | | | | | | The AXP803 has a VBUS power input. Its functionality is the same as the one found in the AXP813. Now that the axp20x_usb_power driver supports this variant, we can add an mfd cell for it to use it. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add USB power supply mfd cell to AXP813Quentin Schulz2019-05-141-0/+11
| | | | | | | | | | The AXP813 has a VBUS power input. Now that the axp20x_usb_power driver supports this variant, we can add an mfd cell for it to use it. Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> [wens@csie.org: add commit message] Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* Merge tag 'mfd-next-4.21' of ↵Linus Torvalds2019-01-151-56/+70
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd Pull MFD updates from Lee Jones: "New Device Support - Add support for Power Supply to AXP813 - Add support for GPIO, ADC, AC and Battery Power Supply to AXP803 - Add support for UART to Exynos LPASS Fix-ups: - Use supplied MACROS; ti_am335x_tscadc - Trivial spelling/whitespace/alignment; tmio, axp20x, rave-sp - Regmap changes; bd9571mwv, wm5110-tables - Kconfig dependencies; MFD_AT91_USART - Supply shared data for child-devices; madera-core - Use new of_node_name_eq() API call; max77620, stmpe - Use managed resources (devm_*); tps65218 - Comment descriptions; ingenic-tcu - Coding style; madera-core Bug Fixes: - Fix section mismatches; twl-core, db8500-prcmu - Correct error path related issues; mt6397-core, ab8500-core, mc13xxx-core - IRQ related fixes; tps6586x - Ensure proper initialisation sequence; qcom_rpm - Repair potential memory leak; cros_ec_dev" * tag 'mfd-next-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (25 commits) mfd: exynos-lpass: Enable UART module support mfd: mc13xxx: Fix a missing check of a register-read failure mfd: cros_ec: Add commands to control codec mfd: madera: Remove spurious semicolon in while loop mfd: rave-sp: Fix typo in rave_sp_checksum comment mfd: ingenic-tcu: Fix bit field description in header mfd: tps65218: Use devm_regmap_add_irq_chip and clean up error path in probe() mfd: Use of_node_name_eq() for node name comparisons mfd: cros_ec_dev: Add missing mfd_remove_devices() call in remove mfd: axp20x: Add supported cells for AXP803 mfd: axp20x: Re-align MFD cell entries mfd: axp20x: Add AC power supply cell for AXP813 mfd: wm5110: Add missing ASRC rate register mfd: qcom_rpm: write fw_version to CTRL_REG mfd: tps6586x: Handle interrupts on suspend mfd: madera: Add shared data for accessory detection mfd: at91-usart: Add platform dependency mfd: bd9571mwv: Add volatile register to make DVFS work mfd: ab8500-core: Return zero in get_register_interruptible() mfd: tmio: Typo s/use use/use/ ...
| * mfd: axp20x: Add supported cells for AXP803Oskari Lemmela2019-01-031-0/+14
| | | | | | | | | | | | | | | | | | | | | | Parts of the AXP803 are compatible with their counterparts on the AXP813. These include the GPIO, ADC, AC and battery power supplies. Signed-off-by: Oskari Lemmela <oskari@lemmela.net> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Tested-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
| * mfd: axp20x: Re-align MFD cell entriesChen-Yu Tsai2019-01-031-56/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the axp20x driver, the various mfd_cell lists had varying amounts of indentation, sometimes even within the same list. For the axp288, there's no alignment at all. Re-align the right hand side of the assignments with the least amount of tabs possible. Also collapse the closing bracket and the opening bracket of the next entry onto the same line for the axp288, to be consistent with all the other mfd_cell lists. This patch is whitespace change only. No functionality is modified. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Oskari Lemmela <oskari@lemmela.net> Signed-off-by: Lee Jones <lee.jones@linaro.org>
| * mfd: axp20x: Add AC power supply cell for AXP813Oskari Lemmela2019-01-031-0/+5
| | | | | | | | | | | | | | | | | | | | As axp20x-ac-power-supply now supports AXP813, add a cell for it. Signed-off-by: Oskari Lemmela <oskari@lemmela.net> Reviewed-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Tested-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* | mfd: axp20x: use explicit bit definesOlliver Schinagl2018-12-131-1/+1
| | | | | | | | | | | | | | | | | | The AXP20X_OFF define is an actual specific bit, define it as such. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl> Signed-off-by: Priit Laes <plaes@plaes.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* | mfd: axp20x: Clean up included headersOlliver Schinagl2018-12-131-5/+6
|/ | | | | | | | | Add the bitops.h header as we need it, alphabetize header order. Signed-off-by: Olliver Schinagl <oliver@schinagl.nl> Signed-off-by: Priit Laes <plaes@plaes.org> Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
* mfd: axp20x: Add self-working mode support for AXP806Chen-Yu Tsai2018-07-271-3/+25
| | | | | | | | | | | | | | | | | The AXP806 can operate in a standalone "self-working" mode, in which it is also responsible for power control of the overall system. This mode is similar to the master mode, but the EN/PWRON pin functions as a power button, instead of a level-triggered enable switch. This patch adds code checking for the new "x-powers,self-working-mode" property, and a separate mfd_cell list that includes the power button (PEK) sub-device. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Icenowy Zheng <icenowy@aosc.io> Tested-by: Icenowy Zheng <icenowy@aosc.io> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Correct AXP806 POK interrupt prefixChen-Yu Tsai2018-05-161-4/+4
| | | | | | | | | | | | | | When AXP806 support was added, POK was incorrectly expanded to PWROK. However, the datasheet lists them as POK[LSNP], which is the same as on the AXP288. Furthermore, the registers associated with POK functions are the same as the PEK on the other AXP PMICs. This suggests that "POK" means "Power On Key", much like "PEK" means "Power Enable Key", instead of "Power OK". This patch changes the "PWROK" prefix to "POK" for these interrupts. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Use DEFINE_RES_IRQ to declare resources for mfd_cellsChen-Yu Tsai2018-05-161-157/+30
| | | | | | | | | | | Previously we were open coding the interrupts for the various mfd cells. This made the code somewhat long due to pretty-formatting. This patch convert those into one-line declarations with DEFINE_RES_IRQ, making the code shorter and easier to read. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Constify struct mfd_cell and struct resourceChen-Yu Tsai2018-05-161-22/+22
| | | | | | | | The axp20x driver has lots of mfd_cell and resource structs. These can all be const-ified. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add battery power supply cell for AXP813Quentin Schulz2018-05-161-0/+3
| | | | | | | | As axp20x-battery-power-supply now supports AXP813, add a cell for it. Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Reviewed-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Probe axp20x_adc driver for AXP813Quentin Schulz2018-05-161-1/+4
| | | | | | | | | This makes the axp20x_adc driver probe with platform device id "axp813-adc". Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Make AXP209/22x cells probe their ADC via DTQuentin Schulz2018-05-161-1/+4
| | | | | | | | | This makes AXP209 and AXP22x ADCs probe first via DT and then by fallback via platform. Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Mark axp288 CHRG_BAK_CTRL register volatileHans de Goede2018-01-081-0/+1
| | | | | | | | The input current limit bits get updated by the charger detection logic, so we should not cache the contents of this register. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add pinctrl cell for AXP813Quentin Schulz2018-01-081-0/+3
| | | | | | | | | As GPIO/pinctrl driver now supports AXP813, add a cell for it. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add axp20x-regulator cell for AXP813Chen-Yu Tsai2017-11-011-0/+2
| | | | | | | | | | Now that axp20x-regulator supports AXP813, we can add a cell for it to enable it. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Use correct platform device ID for many PEKQuentin Schulz2017-09-051-6/+6
| | | | | | | | | | | According to their datasheets, the AXP221, AXP223, AXP288, AXP803, AXP809 and AXP813 PEK have different values for startup time bits from the AXP20X, let's use the platform device id with the correct values. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add support for AXP813 PMICChen-Yu Tsai2017-09-051-0/+22
| | | | | | | | | | | | | | | | | | | | The X-Powers AXP813 PMIC is normally used with Allwinner's A83T SoC. It has the same range of functions as other X-Powers PMICs, such as DC-DC buck converter and linear regulator outputs, AC-IN and VBUS power supplies, power button trigger, GPIOs, ADCs, and a battery charger. Note that the IRQ table given in the datasheet is incorrect: in IRQ enable/status registers 1, there are separate IRQs for ACIN and VBUS, instead of bits [7:5] being the same as bits [4:2]. So it shares the same IRQs as the AXP803, rather than the AXP288. This patch adds basic mfd support for it, with only the power button enabled. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add axp20x-regulator cell for AXP803Icenowy Zheng2017-07-061-1/+2
| | | | | | | | As axp20x-regulator now supports AXP803, add a cell for it. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Support AXP803 variantIcenowy Zheng2017-04-271-0/+79
| | | | | | | | | | | | | AXP803 is a new PMIC chip produced by X-Powers, usually paired with A64 via RSB bus. The PMIC itself is like AXP288, but with RSB support and dedicated VBUS and ACIN. Add support for it in the axp20x mfd driver. Currently only power key function is supported. Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add MFD cells for AXP20X and AXP22X battery driverQuentin Schulz2017-04-271-0/+9
| | | | | | | | | | | 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: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add CHRG_CTRL1/2/3 to writeable regs for AXP20X/AXP22XQuentin Schulz2017-04-271-0/+2
| | | | | | | | | | | | | | | | | 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: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add AC power supply cells for AXP22X PMICsQuentin Schulz2017-04-271-0/+10
| | | | | | | | | | | | | | 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: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-By: Sebastian Reichel <sre@kernel.org> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add ADC cells for AXP20X and AXP22X PMICsQuentin Schulz2017-04-271-0/+6
| | | | | | | | | | This adds the AXP20X/AXP22x ADCs driver to the mfd cells of the AXP209, AXP221 and AXP223 MFD. 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> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Correct name of temperature data ADC registersQuentin Schulz2017-04-271-1/+1
| | | | | | | | | | | | | 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: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add support for dts property "xpowers,master-mode"Rask Ingemann Lambertsen2017-04-271-8/+13
| | | | | | | | | | | | | commit b101829a029a ("mfd: axp20x: Fix AXP806 access errors on cold boot") was intended to fix the case where a board uses an AXP806 in slave mode, but the boot loader leaves it in master mode for lack of AXP806 support. But now the driver breaks on boards where the PMIC is operating in master mode. This patch lets the driver use the new device tree property "xpowers,master-mode" to set the correct operating mode for the board. Fixes: 8824ee857348 ("mfd: axp20x: Add support for AXP806 PMIC") Signed-off-by: Rask Ingemann Lambertsen <rask@formelder.dk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Fix AXP806 access errors on cold bootChen-Yu Tsai2017-02-131-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AXP806 supports either master/standalone or slave mode. Slave mode allows sharing the serial bus, even with multiple AXP806 which all have the same hardware address. This is done with extra "serial interface address extension", or AXP806_BUS_ADDR_EXT, and "register address extension", or AXP806_REG_ADDR_EXT, registers. The former is read-only, with 1 bit customizable at the factory, and 1 bit depending on the state of an external pin. The latter is writable. Only when the these device addressing bits (in the upper 4 bits of the registers) match, will the device respond to operations on its other registers. The AXP806_REG_ADDR_EXT was previously configured by Allwinner's bootloader. Work on U-boot SPL support now allows us to switch to mainline U-boot, which doesn't do this for us. There might be other bare minimum bootloaders out there which don't to this either. It's best to handle this in the kernel. This patch sets AXP806_REG_ADDR_EXT to 0x10, which is what we know to be the proper value for a standard AXP806 in slave mode. Afterwards it will reinitialize the regmap cache, to purge any invalid stale values. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add separate MFD cell for AXP223Quentin Schulz2017-02-131-4/+24
| | | | | | | | | | | | | | | The AXP223 shares most of its logic with the AXP221 but has some differences for the VBUS power supply driver. Thus, to probe the driver with the correct compatible, the AXP221 and the AXP223 now have separate MFD cells. AXP221 MFD cells are renamed from axp22x_cells to axp221_cells to avoid confusion. Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Fix axp288 volatile rangesHans de Goede2017-02-131-0/+7
| | | | | | | | | The axp288 pmic has a lot more volatile registers then we were listing in axp288_volatile_ranges, fix this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Fix axp288 PEK_DBR and PEK_DBF irqs being swappedHans de Goede2017-02-131-4/+4
| | | | | | | | | | | | | | | The R in PEK_DBR stands for rising, so it should be mapped to AXP288_IRQ_POKP where the last P stands for positive edge. Likewise PEK_DBF should be mapped to the falling edge, aka the _N_egative edge, so it should be mapped to AXP288_IRQ_POKN. This fixes the inverted powerbutton status reporting by the axp20x-pek driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add missing axp288 irqsHans de Goede2017-02-131-0/+3
| | | | | | | | | | | | | | | | | | | The axp288 has the following irqs 2 times: VBUS_FALL, VBUS_RISE, VBUS_OV. On boot / reset the enable flags for both the normal and alt version of these irqs is set. Since we were only listing the normal version in the axp288 regmap_irq struct, we were never disabling the alt versions of these irqs. Add the alt versions to the axp288 regmap_irq struct, so that these get properly disabled. Together with the other axp288 fixes in this series, this fixes the axp288 irq contineously triggering. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Use IRQF_TRIGGER_LOW on the axp288Hans de Goede2017-02-131-3/+3
| | | | | | | | | | | | | | | | | | | | | | The interrupt line of the entire family of axp2xx pmics is active-low, for devicetree enumerated irqs, this is dealt with in the devicetree. ACPI irq resources have a flag field for this too, I tried using this on my CUBE iwork8 Air tablet, but it does not contain the right data. The dstd shows the irq listed as either ActiveLow or ActiveHigh, depending on the OSID variable, which seems to be set by the "OS IMAGE ID" in the BIOS/EFI setup screen. Since the acpi-resource info is no good, simply pass in IRQF_TRIGGER_LOW on the axp288. Together with the other axp288 fixes in this series, this fixes the axp288 irq contineously triggering. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add address extension registers for AXP806 regmapChen-Yu Tsai2016-11-291-1/+2
| | | | | | | | | | | | | | | | | | | | The AXP806 supports either master/standalone or slave mode. Slave mode allows sharing the serial bus, even with multiple AXP806 which all have the same hardware address. This is done with extra "serial interface address extension", or AXP806_BUS_ADDR_EXT, and "register address extension", or AXP806_REG_ADDR_EXT, registers. The former is read-only, with 1 bit customizable at the factory, and 1 bit depending on the state of an external pin. The latter is writable. Only when the these device addressing bits (in the upper 4 bits of the registers) match, will the device respond to operations on its other registers. Add these 2 registers to the regmap so we can access them. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add adc volatile ranges for axp22xIcenowy Zheng2016-11-211-0/+1
| | | | | | | | AXP22x has also some different register map than axp20x, they're also added here. Signed-off-by: Icenowy Zheng <icenowy@aosc.xyz> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add AXP209 GPIO supportMaxime Ripard2016-10-041-0/+3
| | | | | | | | Now that we have a GPIO driver for the AXP209, we can add it to our MFD. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add support for AXP806 PMICChen-Yu Tsai2016-09-131-0/+72
| | | | | | | | | | | | | | | | | The X-Powers AXP806 is a new PMIC that is paired with Allwinner's A80 SoC, along with a master AXP809 PMIC. This PMIC has a new register layout, and supports some functions not seen in other X-Powers PMICs, such as master-slave mode, or having multiple AXP806 PMICs on the same bus with address space extension, or supporting both I2C and RSB mode. I2C has not been tested. This patch adds support for the interrupts of the PMIC. A regulator sub-device is enabled, but actual regulator support will come in a later patch. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add axp20x-usb-power-supply for axp22x pmicsHans de Goede2016-06-291-0/+10
| | | | | | | Add axp20x-usb-power-supply for axp22x pmics. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add a 500ms delay at the end of axp20x_power_offHans de Goede2016-06-291-0/+4
| | | | | | | | | | | | | | | | | | The kernel expects the power_off function to not return, and if it does it panics. Add a slight delay after the i2c write which turns off power through the PMIC, to give capacitors etc. some time to drain. Without this the kernel lives on long enough after the poweroff to print the following on the serial console on my Mele A1000G quad: [ 248.583588] reboot: Power down [ 248.600490] Kernel pa With the delay the start of printing "Kernel panic" is gone. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Extend axp22x_volatile_rangesHans de Goede2016-06-291-0/+3
| | | | | | | | The axp22x pmic has a bunch of volatile registers besides the interrupt ones, extend axp22x_volatile_ranges with these. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add a cell for the ac power_supply part of the axp20x PMICsMichael Haas2016-05-091-0/+11
| | | | | | | | | | | | As a counterpart to the usb power_supply cell, this commit adds an AC power_supply cell to the axp20x driver. Still missing are the RTC backup battery and the main battery charger cells. Signed-off-by: Michael Haas <haas@computerlinguist.org> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add support for AXP809 PMICChen-Yu Tsai2016-04-191-0/+79
| | | | | | | | | | | | | The X-Powers AXP809 is a new PMIC that is paired with Allwinner's A80 SoC, along with a slave AXP806 PMIC. This PMIC is quite similar to the earlier AXP223, though the interrupts and regulator have changed a bit. This patch adds support for the interrupts and power button of the PMIC. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add support for RSB based AXP223 PMICChen-Yu Tsai2016-02-121-0/+2
| | | | | | | | | The AXP223 is a new PMIC commonly paired with Allwinner A23/A33 SoCs. It is functionally identical to AXP221; only the regulator default voltage/status and the external host interface are different. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Whitespace, open parenthesis alignment code style fixesChen-Yu Tsai2016-02-121-4/+4
| | | | | | | This fixes some leftover code style issues in the axp20x core. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Split the driver into core and i2c bitsChen-Yu Tsai2016-02-121-75/+15
| | | | | | | | | | | | | | | | | | The axp20x driver assumes the device is i2c based. This is not the case with later chips, which use a proprietary 2 wire serial bus by Allwinner called "Reduced Serial Bus". This patch follows the example of mfd/wm831x and splits it into an interface independent core, and an i2c specific glue layer. MFD_AXP20X and the new MFD_AXP20X_I2C are changed to tristate symbols, allowing the driver to be built as modules. Whitespace and other style errors in the moved i2c specific code have been fixed. Included but unused header files are removed as well. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Add missing copyright noticeChen-Yu Tsai2016-02-121-0/+2
| | | | | | | | Supply a backdated copyright notice. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Carlo Caione <carlo@caione.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
* mfd: axp20x: Use dev->driver->of_match_table in axp20x_match_device()Chen-Yu Tsai2016-02-121-1/+1
| | | | | | | | | | | | | | | In axp20x_match_device(), match the of_device_id table bound to the device driver instead of pointing to axp20x_of_match directly. This will allow us to keep axp20x_match_device() unmodified when we expand the axp20x driver into multiple ones covering different interface types. of_device_get_match_data() cannot be used here as we need to know if it failed to get a match, or if the match data value just happened to be 0, as it is for the AXP152. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-18 01:50:58 +0000