linux-kernel - Re: [PATCH v1 0/3] TPS65224 PMIC driver

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Date:   Fri, 3 Nov 2023 09:52:04 +0100
From:   Julien Panis <jpanis@...libre.com>
To:     Gairuboina Sirisha <sirisha.gairuboina@...s.com>,
        linux-kernel@...r.kernel.org
Cc:     lee@...nel.org, arnd@...db.de, gregkh@...uxfoundation.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Subject: Re: [PATCH v1 0/3] TPS65224 PMIC driver

On 10/26/23 15:32, Gairuboina Sirisha wrote:
> Added support for TPS65224 PMIC in linux.
> This patch set includes driver for core, i2c and pfsm.
> The driver was tested on TI's custom AM62A EVM.
>
> Gairuboina Sirisha (3):
>    drivers: mfd: Add support for TPS65224
>    drivers: mfd: Add support for TPS65224 i2c driver
>    drivers: misc: Add support for TPS65224 pfsm driver
>
>   drivers/mfd/Kconfig                |  19 +
>   drivers/mfd/Makefile               |   2 +
>   drivers/mfd/tps65224-core.c        | 291 ++++++++++++
>   drivers/mfd/tps65224-i2c.c         | 245 ++++++++++
>   drivers/misc/Kconfig               |  12 +
>   drivers/misc/Makefile              |   1 +
>   drivers/misc/tps65224-pfsm.c       | 290 ++++++++++++
>   include/linux/mfd/tps65224.h       | 735 +++++++++++++++++++++++++++++
>   include/uapi/linux/tps65224_pfsm.h |  36 ++
>   9 files changed, 1631 insertions(+)
>   create mode 100644 drivers/mfd/tps65224-core.c
>   create mode 100644 drivers/mfd/tps65224-i2c.c
>   create mode 100644 drivers/misc/tps65224-pfsm.c
>   create mode 100644 include/linux/mfd/tps65224.h
>   create mode 100644 include/uapi/linux/tps65224_pfsm.h

Hi Sirisha,

These drivers strongly look like TPS6594 drivers.

Instead of submitting new drivers, you should consider reusing and
modifying the existing ones for TPS6594. You might add your new 'compatible'
entry ("ti,tps65224-q1") in TPS6594 dt-bindings (see 'ti,tps6594.yaml' file)
to identify your TPS65224 PMIC. This new 'compatible' would also be added
in the existing 'tps6594_i2c_of_match_table'. You can have a look at
'tps->chip_id' in 'tps6594-core.c' and see how we use it to deal with slight
differences between different PMIC IDs.

Julien