linux-kernel - Re: [PATCH v4 00/15] Add support for AXP192 PMIC

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Date:   Wed, 29 Jun 2022 23:14:49 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Aidan MacDonald <aidanmacdonald.0x0@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Sebastian Reichel <sre@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>, quic_gurus@...cinc.com,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Michael Walle <michael@...le.cc>,
        Randy Dunlap <rdunlap@...radead.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-iio <linux-iio@...r.kernel.org>,
        Linux PM <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v4 00/15] Add support for AXP192 PMIC

On Wed, Jun 29, 2022 at 4:29 PM Aidan MacDonald
<aidanmacdonald.0x0@...il.com> wrote:
>
> Changes in v4:
>
> * Drop regmap-irq patches and rebase on top of the regmap-irq
>   refactoring series[1], which implements the same functionality.
> * Reorder mfd_cells, putting one-line entries at the bottom.
> * Fix incorrect example in axp192-gpio device tree bindings.
> * Perform adc_en2 flag -> adc_en2_mask conversion in axp20x_adc
>   as a separate patch.
> * Simplify axp192_usb_power_set_current_max().
> * Drop unneeded OF dependency in pin control driver, and document
>   tables used for describing register layouts.
> * Various style fixups suggested by Andy Shevchenko.


For patches 6-11
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

> [1]: https://lore.kernel.org/lkml/20220623211420.918875-1-aidanmacdonald.0x0@gmail.com/
>
> Changes in v3:
>
> * Update pinctrl driver to address Andy Shevchenko's review comments
>   from v1, and fix a few other issues.
> * Add gpio-ranges property and example snippet to gpio DT bindings.
> * Update commit message of patch 01/16 to point out that all register
>   addresses are obtained using sub_irq_reg().
> * Document ccc_table in axp20x_battery. Also update commit message to
>   note a small fix that is part of that patch.
> * Drop axp20x_adc consolidation patch in favor of using separate adc_raw
>   functions. It's a minor code size optimization that may not be worth
>   the effort due to implementation complexity.
> * Use the FIELD_GET macro in axp20x_adc to further clarify intent.
> * Fix a typo in the regulator driver where an AXP20X regulator ID was
>   mistakenly used instead of an AXP192 regulator ID. Also carry over
>   an Acked-by: tag from v1. Hope that's okay.
> * Accumulate Acked-by: tags from v1 on DT patches.
> * Accumulate Acked-by: tags from v2.
>
> Note that regmap maintainer Mark Brown has said the first two patches to
> regmap-irq aren't suitable for inclusion into the kernel in their current
> state. I'm including them for v3 so the series remains testable.
>
> Changes in v2:
>
> * Do a little cleanup of axp20x_adc suggested by Jonathan Cameron
> * Consolidate ADC read functions in axp20x_adc
> * Drop the axp192's read_label callback in axp20x_adc
> * Clean up the axp192-gpio dt bindings
> * Rewrite a problematic bit of code in axp20x_usb_power reported
>   by kernel test robot
> * Support AXP192 in axp20x_battery
> * Split up regmap-irq changes to two separate patches
>
> Cover letter from v1:
>
> Hi all,
>
> This patch series adds support for the X-Powers AXP192 PMIC to the
> AXP20x driver framework.
>
> The first patch is a small change to regmap-irq to support the AXP192's
> unusual IRQ register layout. It isn't possible to include all of the
> IRQ registers in one regmap-irq chip without this.
>
> The rest of the changes are pretty straightforward, I think the only
> notable parts are the axp20x_adc driver where there seems to be some
> opportunities for code reuse (the axp192 is nearly a duplicate of the
> axp20x) and the addition of a new pinctrl driver for the axp192, since
> the axp20x pinctrl driver was not very easy to adapt.
>
> Aidan MacDonald (15):
>   dt-bindings: mfd: add bindings for AXP192 MFD device
>   dt-bindings: iio: adc: axp209: Add AXP192 compatible
>   dt-bindings: power: supply: axp20x: Add AXP192 compatible
>   dt-bindings: gpio: Add AXP192 GPIO bindings
>   dt-bindings: power: axp20x-battery: Add AXP192 compatible
>   mfd: axp20x: Add support for AXP192
>   regulator: axp20x: Add support for AXP192
>   iio: adc: axp20x_adc: Minor code cleanups
>   iio: adc: axp20x_adc: Replace adc_en2 flag with adc_en2_mask field
>   iio: adc: axp20x_adc: Add support for AXP192
>   power: supply: axp20x_usb_power: Add support for AXP192
>   pinctrl: Add AXP192 pin control driver
>   power: axp20x_battery: Add constant charge current table
>   power: axp20x_battery: Support battery status without fuel gauge
>   power: axp20x_battery: Add support for AXP192
>
>  .../bindings/gpio/x-powers,axp192-gpio.yaml   |  68 ++
>  .../bindings/iio/adc/x-powers,axp209-adc.yaml |  18 +
>  .../bindings/mfd/x-powers,axp152.yaml         |   1 +
>  .../x-powers,axp20x-battery-power-supply.yaml |   1 +
>  .../x-powers,axp20x-usb-power-supply.yaml     |   1 +
>  drivers/iio/adc/axp20x_adc.c                  | 356 +++++++++--
>  drivers/mfd/axp20x-i2c.c                      |   2 +
>  drivers/mfd/axp20x.c                          | 152 +++++
>  drivers/pinctrl/Kconfig                       |  13 +
>  drivers/pinctrl/Makefile                      |   1 +
>  drivers/pinctrl/pinctrl-axp192.c              | 598 ++++++++++++++++++
>  drivers/power/supply/axp20x_battery.c         | 142 ++++-
>  drivers/power/supply/axp20x_usb_power.c       |  84 ++-
>  drivers/regulator/axp20x-regulator.c          | 100 ++-
>  include/linux/mfd/axp20x.h                    |  84 +++
>  15 files changed, 1547 insertions(+), 74 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/gpio/x-powers,axp192-gpio.yaml
>  create mode 100644 drivers/pinctrl/pinctrl-axp192.c
>
> --
> 2.35.1
>


-- 
With Best Regards,
Andy Shevchenko