On 2024/12/30 18:02, Troy Mitchell wrote:
> Add the core MFD driver for P1 PMIC. I define four sub-devices
> for which the drivers will be added in subsequent patches.
>
> For this patch, It supports `reboot` and `shutdown`.
>
> Signed-off-by: Troy Mitchell <TroyMitchell988@xxxxxxxxx>
> ---
> drivers/mfd/Kconfig | 14 +
> drivers/mfd/Makefile | 1 +
> drivers/mfd/spacemit-pmic.c | 159 ++++++++++
> include/linux/mfd/spacemit/spacemit-p1.h | 491 +++++++++++++++++++++++++++++
> include/linux/mfd/spacemit/spacemit-pmic.h | 39 +++
> 5 files changed, 704 insertions(+)
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index ae23b317a64e49f0cb529ae6bd1becbb90b7c282..c062bf6b11fd23d420a6d5f6ee51b3ec97f9fcbb 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1173,6 +1173,20 @@ 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
> + select REGMAP_IRQ
> + help
> + If this option is turned on, the P1 chip produced by SpacemiT will
> + be supported.
> +
> + This driver can also be compiled as a module. If you choose to build
> + it as a module, the resulting kernel module will be named `spacemit-pmic`.
> +
> config MFD_SPMI_PMIC
> tristate "Qualcomm SPMI PMICs"
> depends on ARCH_QCOM || COMPILE_TEST
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index e057d6d6faef5c1d639789e2560f336fa26cd872..284dbb8fe2ef83bdd994a598504fe315f2eabbdf 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -266,6 +266,7 @@ obj-$(CONFIG_MFD_SUN4I_GPADC) += sun4i-gpadc.o
> obj-$(CONFIG_MFD_STM32_LPTIMER) += stm32-lptimer.o
> obj-$(CONFIG_MFD_STM32_TIMERS) += stm32-timers.o
> obj-$(CONFIG_MFD_MXS_LRADC) += mxs-lradc.o
> +obj-$(CONFIG_MFD_SPACEMIT_PMIC) += spacemit-pmic.o
> obj-$(CONFIG_MFD_SC27XX_PMIC) += sprd-sc27xx-spi.o
> obj-$(CONFIG_RAVE_SP_CORE) += rave-sp.o
> obj-$(CONFIG_MFD_ROHM_BD71828) += rohm-bd71828.o
> diff --git a/drivers/mfd/spacemit-pmic.c b/drivers/mfd/spacemit-pmic.c
> new file mode 100644
> index 0000000000000000000000000000000000000000..d9f6785cecbd405821dead13cdf8d1f9fd64e508
> --- /dev/null
> +++ b/drivers/mfd/spacemit-pmic.c
> @@ -0,0 +1,159 @@
> +static const struct of_device_id spacemit_pmic_of_match[] = {
> + { .compatible = "spacemit,p1", .data = &pmic_p1_match_data },
> + { /* sentinel */ }
> +};
> +MODULE_DEVICE_TABLE(of, spacemit_pmic_of_match);
> +
> +static struct i2c_driver spacemit_pmic_i2c_driver = {
> + .driver = {
> + .name = "spacemit-pmic",
> + .of_match_table = spacemit_pmic_of_match,
> + },
> + .probe = spacemit_pmic_probe,
> +};
> +
> +static int __init spacemit_pmic_init(void)
> +{
> + return platform_driver_register(&spacemit_pmic_i2c_driver);
> +}
> +
> +static void __exit spacemit_pmic_exit(void)
> +{
> + platform_driver_unregister(&spacemit_pmic_i2c_driver);
> +}
I should use i2c_add_driver/i2c_del_driver here.
I forgot to add my modified c file via stg :(
> +
> +module_init(spacemit_pmic_init);
> +module_exit(spacemit_pmic_exit);
>
--
Troy Mitchell
