linux-kernel - Re: [PATCH 2/6] mfd: spacemit: add support for SpacemiT PMICs

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Message-ID: <4036e3c2-8324-4eeb-9aa8-df1fbe9c7943@iscas.ac.cn>
Date: Thu, 19 Jun 2025 13:46:19 +0800
From: Vivian Wang <wangruikang@...as.ac.cn>
To: Alex Elder <elder@...cstar.com>, lee@...nel.org, lgirdwood@...il.com,
 broonie@...nel.org, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, dlan@...too.org
Cc: paul.walmsley@...ive.com, palmer@...belt.com, aou@...s.berkeley.edu,
 alex@...ti.fr, troymitchell988@...il.com, guodong@...cstar.com,
 devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
 spacemit@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] mfd: spacemit: add support for SpacemiT PMICs

On 6/14/25 05:01, Alex Elder wrote:
> <snip>
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 6fb3768e3d71c..c59ae6cc2dd8d 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1182,6 +1182,17 @@ config MFD_QCOM_RPM
>  	  Say M here if you want to include support for the Qualcomm RPM as a
>  	  module. This will build a module called "qcom_rpm".
>  
> +config MFD_SPACEMIT_PMIC
> +	tristate "SpacemiT PMIC"
> +	depends on ARCH_SPACEMIT || COMPILE_TEST
> +	depends on I2C && OF
> +	select MFD_CORE
> +	select REGMAP_I2C
> +	default ARCH_SPACEMIT
> +	help
> +	  This option enables support for SpacemiT I2C based PMICs.  At
> +	  this time only the P1 PMIC (used with the K1 SoC) is supported.
> +

Module name?

+	  To compile this driver as a module, choose M here: the
+	  module will be called spacemit-pmic.

>  config MFD_SPMI_PMIC
>  	tristate "Qualcomm SPMI PMICs"
>  	depends on ARCH_QCOM || COMPILE_TEST
>
> <snip>
>
> +static struct i2c_driver spacemit_pmic_i2c_driver = {
> +	.driver = {
> +		.name = "spacemit-pmic",
> +		.of_match_table = spacemit_pmic_match,
> +	},
> +	.probe    = spacemit_pmic_probe,
> +};
> +
> +static int __init spacemit_pmic_init(void)
> +{
> +	return i2c_add_driver(&spacemit_pmic_i2c_driver);
> +}
> +
> +static void __exit spacemit_pmic_exit(void)
> +{
> +	i2c_del_driver(&spacemit_pmic_i2c_driver);
> +}
> +
> +module_init(spacemit_pmic_init);
> +module_exit(spacemit_pmic_exit);
> +

module_i2c_driver

Regards,
Vivian "dramforever" Wang

> +MODULE_LICENSE("GPL");
> +MODULE_DESCRIPTION("SpacemiT multi-function PMIC driver");