[PATCH v2] MediaTek PMIC support
Sascha Hauer
s.hauer at pengutronix.de
Mon Jan 26 03:47:35 PST 2015
Olof, Arnd,
OK to put the driver into drivers/soc/mediatek? Can you take these
patches?
Sascha
On Fri, Jan 23, 2015 at 03:09:55PM +0100, Sascha Hauer wrote:
> This series adds initial support for the MediaTek MT6397 PMIC and the
> necessary infrastructure to attach it on the MT8135 / MT8173 SoCs.
>
> The infrastructure includes:
>
> - pericfg / infracfg controller support
> The pericfg / infracfg controllers contain miscellaneous registers for
> reset controllers and clocks.
>
> - PMIC wrapper support
> On MediaTek MT8135, MT8173 and other SoCs the PMIC is connected via
> SPI. The SPI master interface is not directly visible to the CPU, but
> only through the PMIC wrapper inside the SoC. The communication between
> the SoC and the PMIC can optionally be encrypted. Also a non standard
> Dual IO SPI mode can be used to increase speed. The MT8135 also supports
> a special feature named "IP Pairing". With IP Pairing the pins of some
> SoC internal peripherals can be on the PMIC. The signals of these pins
> are routed over the SPI bus using the pwrap bridge. Because of these
> optional non SPI conform features the PMIC driver is not implemented as
> a SPI bus master driver.
>
> The MT6397 PMIC itself is implemented as a regular mfd device driver which
> uses regmap to access the PMIC registers.
>
> This series also adds regulator support for the MT6397 PMIC.
>
> The first 6 patches can be merged through the ARM SoC tree. The mfd
> patch is independent of the first 6 patches and can be merged through the
> mfd maintainer trees.
>
> Changes since v1:
>
> - document reset bindings for infracfg/pericfg
> - fix base addresses in infracfg binding example
> - Remove more Email addresses from Flora Fu (She is not working at
> MediaTek anymore, her address is no longer valid)
> - drop Regulator support patch, it's already in next
>
> Sascha
>
>
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>
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