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2023-01-23power: pmic: axp: Provide a variant ID in the driver dataSamuel Holland
Subordinate regulator drivers can use this enumerated ID instead of matching the compatible string again. Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Samuel Holland <samuel@sholland.org> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-25include: axp_pmic: Include headers for all variantsSamuel Holland
A single DM-based driver should be able to support some feature for several PMIC variants where the interface is the same. For example, all PMIC variants use the same register bit to trigger poweroff. However, currently only definitions for a single PMIC are available at a time. This requires drivers to use #ifdefs and different indentifiers for each variant they support. Let's simplify this by making register definitions for all variants available from the header. Then no preprocessor conditions are needed; the driver can use the register definition from any variant that supports the relevant feature. An exception is the GPIO-related definitions, which do not use unique identifiers. So for now, keep them like before. They will be cleaned up along with the GPIO driver. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-25include: axp_pmic: Add missing header guard definitionSamuel Holland
This header attempted to avoid multiple inclusion using a header guard. But the preprocessor symbol was never defined, so the guard had no effect. Fix this by defining the symbol. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-12i2c: Add a DM_I2C driver for the sun8i RSB controllerSamuel Holland
This bus controller is used to communicate with an X-Powers AXP PMIC. Currently, various drivers access PMIC registers through a platform- specific non-DM "pmic_bus" interface, which depends on the legacy I2C framework. In order to convert those drivers to use DM_PMIC, this bus needs a DM_I2C driver. Refactor the rsb functions to take the base address as a parameter, and implement both the existing interface (which is still needed in SPL) and the DM_I2C interface on top of them. The register for switching between I2C/P2WI/RSB mode is the same across all PMIC variants, so move that to the common header. There are only a couple of pairs of hardware/runtime addresses used across all PMIC variants. So far the code expected only the "primary" pair, but some PMICs like the AXP305 and AXP805 use the secondary pair, so add support for that to the DM driver as well. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-10-12i2c: Add a DM_I2C driver for the sun6i P2WI controllerSamuel Holland
This bus controller is used to communicate with an X-Powers AXP PMIC. Currently, various drivers access PMIC registers through a platform- specific non-DM "pmic_bus" interface, which depends on the legacy I2C framework. In order to convert those drivers to use DM_PMIC, this bus needs a DM_I2C driver. Refactor the p2wi functions to take the base address as a parameter, and implement both the existing interface (which is still needed in SPL) and the DM_I2C interface on top of them. The register for switching between I2C/P2WI/RSB mode is the same across all PMIC variants. Move that to the common header, so it can be used by both interface implementations. Signed-off-by: Samuel Holland <samuel@sholland.org> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2021-01-25sunxi: Add support for AXP305 PMICJernej Skrabec
This PMIC can be found on H616 boards and it's very similar to AXP805 and AXP806. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> Reviewed-by: Andre Przywara <andre.przywara@arm.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2016-05-25sunxi: power: add AXP809 supportChen-Yu Tsai
The A80 uses the AXP809 as its primary PMIC. 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>
2016-05-25sunxi: power: axp818: Add support for switch SWChen-Yu Tsai
The AXP818 has a switchable output, SW. This is commonly used for controlling power to the LCD backlight. 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>
2016-03-31power: axp818: Add support for FLDOsChen-Yu Tsai
The FLDOs on AXP818 PMIC normally provide power to CPUS and USB HSIC PHY on the A83T/H8. 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>
2016-01-26power: axp: merge separate DLDO functions into 1Chen-Yu Tsai
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>
2015-12-10sunxi: power: axp818: add support for axp818 drivervishnupatekar
AXP818 is rsb based PMIC and used on Allwinner A83T H8 Homlet dev board. It's registers are different and calculating reg config is different than that of earlier axp power ICs. DCDC1, DCDC2, DCDC3 and DCDC5 is implemented at the moment. all other voltages can be added subsequently. AXP datasheet is uploaded to wiki: http://linux-sunxi.org/File:AXP818_datasheet_Revision1.0.pdf Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-10-20sunxi: power: Unify axp pmic function namesHans de Goede
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>