linux-kernel - Re: [PATCH v1 2/3] drivers: mfd: Add support for TPS65224 i2c driver

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Date:   Fri, 27 Oct 2023 10:08:04 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Gairuboina Sirisha <sirisha.gairuboina@...s.com>,
        linux-kernel@...r.kernel.org
Cc:     lee@...nel.org, arnd@...db.de, gregkh@...uxfoundation.org
Subject: Re: [PATCH v1 2/3] drivers: mfd: Add support for TPS65224 i2c driver

On 26/10/2023 15:32, Gairuboina Sirisha wrote:
> From: Gairuboina Sirisha <sirisha.gairuboina@...s.com>
> 
> Added MFD driver that enables I2C communication with and without CRC
> 
> Signed-off-by: Gairuboina Sirisha <sirisha.gairuboina@...s.com>
> ---
>  drivers/mfd/Kconfig        |  14 +++
>  drivers/mfd/Makefile       |   1 +
>  drivers/mfd/tps65224-i2c.c | 245 +++++++++++++++++++++++++++++++++++++
>  3 files changed, 260 insertions(+)
>  create mode 100644 drivers/mfd/tps65224-i2c.c
> 
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 2e4906484eed..943d85d49fc5 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1767,12 +1767,26 @@ config MFD_TPS6594_SPI
>  
>  	  This driver can also be built as a module.  If so, the module
>  	  will be called tps6594-spi.
> +

This does not belong to this patch.

>  config MFD_TPS65224
>          tristate
>          select MFD_CORE
>          select REGMAP
>          select REGMAP_IRQ

...

}
> +
> +static const struct regmap_config tps65224_i2c_regmap_config = {
> +	.reg_bits = 16,
> +	.val_bits = 8,
> +	.max_register = TPS65224_REG_WD_FAIL_CNT_REG,
> +	.volatile_reg = tps65224_is_volatile_reg,
> +	.read = tps65224_i2c_read,
> +	.write = tps65224_i2c_write,
> +};
> +
> +static const struct of_device_id tps65224_i2c_of_match_table[] = {
> +	{ .compatible = "ti,tps65224-q1", },

Where is it documented? It seems nowhere, even though tools asked you to
do this. :(

Please run scripts/checkpatch.pl and fix reported warnings. Some
warnings can be ignored, but the code here looks like it needs a fix.
Feel free to get in touch if the warning is not clear.


Best regards,
Krzysztof