linux-kernel - Re: [PATCH 2/2] mfd: mt6397: Add basic support for MT6331+MT6332 PMIC

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Date:   Wed, 15 Jun 2022 22:52:24 +0100
From:   Lee Jones <lee.jones@...aro.org>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        matthias.bgg@...il.com, johnson.wang@...iatek.com,
        hsin-hsiung.wang@...iatek.com, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] mfd: mt6397: Add basic support for MT6331+MT6332 PMIC

On Fri, 20 May 2022, AngeloGioacchino Del Regno wrote:

> Add support for the MT6331 PMIC with MT6332 Companion PMIC, found
> in MT6795 Helio X10 smartphone platforms.
> 
> This combo has support for multiple devices but, for a start,
> only the following have been implemented:
> - Regulators (two instances, one in MT6331, one in MT6332)
> - RTC (MT6331)
> - Keys (MT6331)
> - Interrupts (MT6331 also dispatches MT6332's interrupts)
> 
> There's more to be implemented, especially for MT6332, which
> will come at a later stage.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
>  drivers/mfd/mt6397-core.c            |  47 ++
>  drivers/mfd/mt6397-irq.c             |   9 +-
>  include/linux/mfd/mt6331/core.h      |  53 +++
>  include/linux/mfd/mt6331/registers.h | 584 ++++++++++++++++++++++++
>  include/linux/mfd/mt6332/core.h      |  53 +++
>  include/linux/mfd/mt6332/registers.h | 642 +++++++++++++++++++++++++++
>  include/linux/mfd/mt6397/core.h      |   2 +
>  7 files changed, 1389 insertions(+), 1 deletion(-)
>  create mode 100644 include/linux/mfd/mt6331/core.h
>  create mode 100644 include/linux/mfd/mt6331/registers.h
>  create mode 100644 include/linux/mfd/mt6332/core.h
>  create mode 100644 include/linux/mfd/mt6332/registers.h

[...]

> +#endif /* __MFD_MT6332_REGISTERS_H__ */
> diff --git a/include/linux/mfd/mt6397/core.h b/include/linux/mfd/mt6397/core.h
> index 1cf78726503b..4d2b80319db3 100644
> --- a/include/linux/mfd/mt6397/core.h
> +++ b/include/linux/mfd/mt6397/core.h
> @@ -12,6 +12,8 @@
>  
>  enum chip_id {
>  	MT6323_CHIP_ID = 0x23,

> +	MT6331_CHIP_ID = 0x20,
> +	MT6332_CHIP_ID = 0x20,

Are these meant to be the same?

>  	MT6358_CHIP_ID = 0x58,
>  	MT6359_CHIP_ID = 0x59,
>  	MT6366_CHIP_ID = 0x66,

-- 
Lee Jones [李琼斯]
Principal Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
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