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path: root/drivers/power/axp221.c
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* sunxi: axp2xx: disable ldoio0/1 at bootHans de Goede2016-09-17-0/+12
| | | | | | | | | | When cold-booting the ldoio0/1 regulators are always off / the gpios are always at tristate. But when re-booting from android these are sometimes on. Disable them at axp_init time (iow as early as possible) to remove this difference between a cold boot and a reboot. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* power: axp221: Remove switch case to simplify axp_set_eldoChen-Yu Tsai2016-05-25-20/+7
| | | | | | | | | | The ELDO enable bits and registers are contiguous for axp221. Instead of a switch case testing against the index, just use the index to shift the bit or register offset. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* power: axp: merge separate DLDO functions into 1Chen-Yu Tsai2016-01-26-68/+20
| | | | | | | | | | | Instead of one function for each DLDO regulator, make 1 function that takes an extra "index". Since the control bits for the DLDO regulators are contiguous, this makes the function very simple. This removes a lot of duplicate code. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: Implement poweroff support for axp221 pmicHans de Goede2016-01-26-0/+12
| | | | | | | Adds poweroff support for axp221 pmic. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: power: Drop protection against multiple calls from axp221 axp_init()Hans de Goede2015-10-20-6/+0
| | | | | | | | | The only thing axp221.c's axp_init() does which needs protection against multiple calls is calling pmic_bus_init, and pmic_bus_init() itself is already protected against being called multiple times. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: power: Unify axp pmic function namesHans de Goede2015-10-20-18/+17
| | | | | | | | | Stop prefixing the axp functions for setting voltages, etc. with the model number, there ever is only one pmic driver built into u-boot, this allows simplifying the callers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Move axp gpio code to a separate axpi-gpio driverHans de Goede2015-05-04-64/+0
| | | | | | | | | | | | | | | | | | | | Move the axp-gpio code out of the drivers/power/axp*.c code, and into a new separate axpi-gpio driver. This change drops supports for the gpio3 pin on the axp209, as that requires special handling, and no boards are using it. Besides cleaning things up by moving the code to a separate driver, as a bonus this change also adds support for the (non vusb) gpio pins on the axp221 and the gpio pins on the axp152. The new axp-gpio driver gets its own Kconfig option, and is only enabled on boards which need it. Besides that it only gets enabled in the regular u-boot build and not for the SPL as we never need it in the SPL. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Move axp pmic register helpers to a separate fileHans de Goede2015-05-04-119/+53
| | | | | | | | | | | Move the register helpers used to access the registers via p2wi resp. rsb bus on the otherwise identical axp221 and axp223 pmics to a separate file, so that they can be used by the upcoming standalone axp gpio driver too. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp: Change axp_gpio_foo prototypes to match gpio uclass opsHans de Goede2015-05-04-5/+5
| | | | | | | | | | | | | Change the axp_gpio_foo function prototypes to match the gpio uclass op prototypes, this is a preparation patch for moving the axp gpio code to a separate driver-model gpio driver. Note that the ugly calls with a NULL udev pointer in drivers/gpio/sunxi_gpio.c this adds are removed in a later patch. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Use vbus-available rather then vbus-usable for vbus-detectHans de Goede2015-04-15-1/+1
| | | | | | | | | | | | | | | | vbus-usable may not get set if power is provided through both the power barrel connector and external 5v is also present on the otg connector, at least on boards where vbus is also controlled through the axp221-pmic. One way to reproduce this is to bootup an Ippo-q8h board with a usb-host cable plugged into the otg (so that it will get powered), then unplug the usb-host cable and plug in a charger, and then do "reset" on the u-boot console, vbus-usable will then report 0, leading to uboot trying to provide power to the otg port even though external 5v is present, this commit fixes this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* power: axp221: Virtual VBUS detect and enable GPIOs to replace separate logicPaul Kocialkowski2015-04-15-31/+44
| | | | | | | | | This converts the VBUS detection and enable logic to GPIO instead of separate axp functions and checks that have to be used aside usual GPIO functions. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: axp221: Add VBUS detection supportChen-Yu Tsai2015-03-10-0/+16
| | | | | | | | | | | Some of the AXP PMICs support VBUS detection, i.e. checking whether VBUS power input is available and usable (supplied by an external source). A few boards use this instead of a separate GPIO to detect VBUS on USB OTG. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: rsb: Move rsb_set_device_mode() call to rsb_init()Hans de Goede2015-02-02-3/+1
| | | | | | | | It turns out that the device_mode_data is rsb specific, rather then slave specific, so integrate the rsb_set_device_mode() call into rsb_init(). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Add ELDO[1-3] supportSiarhei Siamashka2015-01-22-0/+33
| | | | | | | | | | | | | | | | | | And also add Kconfig option for selecting ELDO3 voltage. The reason for having this option is that the Android kernel sets ELDO3 to 1.2V when powering up LCD in the case if 'lcd_if' configuration variable is set to 6 (LCD_IF_EXT_DSI) in the FEX file. Most likely to supply power for a SSD2828 chip. However on the MSI Primo81 tablet, which is using this particular 'lcd_if = 6' setup for LCD, setting the ELDO3 voltage appears to be unnecessary and it works regardless. Having no schematics of this tablet, I can only guess that 1.2V is supplied to SSD2828 in some other way. Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
* sunxi: axp221: Add support for controlling the drivebus pinHans de Goede2015-01-14-0/+36
| | | | | | | | | The axp221 / axp223's N_VBUSEN pin can be configured as an output rather then an input, add axp_drivebus_enable() and _disable() functions to set the pin in output mode and control it. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Protect axp221_init against multiple callsHans de Goede2015-01-14-0/+6
| | | | | | | | | | | | | | | The voltage setting code knows it needs to call axp221_init before calling the various voltage setting functions. But users of axp utility functions like axp221_get_sid() do not know this, so the utility functions always call axp221_init() to ensure that the p2wi / rsb setup magic has been done. Since doing this repeatedly is quite expensive, add a check to axp221_init so that it only does the initialization once. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Explicitly turn off unused voltagesHans de Goede2015-01-14-6/+96
| | | | | | | | | Explicitly turn off unused voltages, rather then leaving them as is. Likewise explictly enabled the dcdc convertors, rather then assuming they are already enabled at boot. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sunxi: axp221: Add axp223 supportHans de Goede2015-01-14-21/+67
| | | | | | | | | The axp223 appears to be the same as the axp221, except that it uses the rsb to communicate rather then the p2wi. At least all the registers we use are 100% the same. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sun6i: axp221: Add axp221_get_sid functionHans de Goede2015-01-14-0/+27
| | | | | | | | For sun6i the SID is stored in the pmic, rather then in the SoC itself, add a function to retreive the sid. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
* sun6i: Add basic axp221 driverOliver Schinagl2014-11-13-0/+186
The A31 uses the AXP221 pmic for various voltages. Signed-off-by: Oliver Schinagl <oliver@schinagl.nl> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk> -- Changes in v2: -Rebase Changes in v3: -Add support for all dldo and aldo-s -Add Kconfig option to select building AXP221 and to select voltage of dldo and aldo-s Changes in v4: -Add axp221_setbits helper function -Use symbolic names for enabled bits in CTRL1 - CTRL3 registers
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