linux-kernel - Re: [PATCH v2 2/6] MFD: TPS6594x: Add new PMIC device driver for TPS6594x chips

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Message-ID: <YvX6sBMItZoAhLKe@google.com>
Date:   Fri, 12 Aug 2022 08:01:04 +0100
From:   Lee Jones <lee@...nel.org>
To:     Matt Ranostay <mranostay@...com>
Cc:     nm@...com, j-keerthy@...com, linux-kernel@...r.kernel.org,
        linux-rtc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 2/6] MFD: TPS6594x: Add new PMIC device driver for
 TPS6594x chips

On Thu, 11 Aug 2022, Matt Ranostay wrote:

> From: Keerthy <j-keerthy@...com>
> 
> The TPS6594x chip is a PMIC, and contains the following components:
> 
> - Regulators
> - GPIO controller
> - RTC
> 
> However initially only RTC is supported.
> 
> Signed-off-by: Keerthy <j-keerthy@...com>
> Signed-off-by: Matt Ranostay <mranostay@...com>
> ---
>  drivers/mfd/Kconfig          |  14 ++++
>  drivers/mfd/Makefile         |   1 +
>  drivers/mfd/tps6594x.c       | 121 +++++++++++++++++++++++++++++++++++
>  include/linux/mfd/tps6594x.h |  84 ++++++++++++++++++++++++
>  4 files changed, 220 insertions(+)
>  create mode 100644 drivers/mfd/tps6594x.c
>  create mode 100644 include/linux/mfd/tps6594x.h
> 
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index abb58ab1a1a4..4845683ae1d0 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1547,6 +1547,20 @@ config MFD_TI_LP873X
>  	  This driver can also be built as a module. If so, the module
>  	  will be called lp873x.
>  
> +config MFD_TPS6594X
> +	tristate "TI TPS6594X Power Management IC"
> +	depends on I2C && OF
> +	select MFD_CORE
> +	select REGMAP_I2C
> +	help
> +	  If you say yes here then you get support for the TPS6594X series of
> +	  Power Management Integrated Circuits (PMIC).
> +	  These include voltage regulators, RTS, configurable
> +	  General Purpose Outputs (GPO) that are used in portable devices.
> +
> +	  This driver can also be built as a module. If so, the module
> +	  will be called tps6594x.
> +
>  config MFD_TI_LP87565
>  	tristate "TI LP87565 Power Management IC"
>  	depends on I2C && OF
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 858cacf659d6..7ff6a8a57d55 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -105,6 +105,7 @@ obj-$(CONFIG_MFD_TPS65910)	+= tps65910.o
>  obj-$(CONFIG_MFD_TPS65912)	+= tps65912-core.o
>  obj-$(CONFIG_MFD_TPS65912_I2C)	+= tps65912-i2c.o
>  obj-$(CONFIG_MFD_TPS65912_SPI)  += tps65912-spi.o
> +obj-$(CONFIG_MFD_TPS6594X)	+= tps6594x.o
>  obj-$(CONFIG_MENELAUS)		+= menelaus.o
>  
>  obj-$(CONFIG_TWL4030_CORE)	+= twl-core.o twl4030-irq.o twl6030-irq.o
> diff --git a/drivers/mfd/tps6594x.c b/drivers/mfd/tps6594x.c
> new file mode 100644
> index 000000000000..ff265b91db3e
> --- /dev/null
> +++ b/drivers/mfd/tps6594x.c
> @@ -0,0 +1,121 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Driver for tps6594x PMIC chips
> + *
> + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/
> + * Author: Keerthy <j-keerthy@...com>
> + */
> +
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/mfd/core.h>
> +#include <linux/mfd/tps6594x.h>
> +#include <linux/module.h>
> +#include <linux/i2c.h>
> +#include <linux/regmap.h>
> +
> +static const struct regmap_config tps6594x_regmap_config = {
> +	.reg_bits = 8,
> +	.val_bits = 8,
> +	.max_register = TPS6594X_REG_MAX,
> +};
> +
> +static const struct mfd_cell tps6594x_cells[] = {
> +	{ .name = "tps6594x-gpio" },
> +	{ .name = "tps6594x-regulator" },
> +	{ .name = "tps6594x-rtc" },
> +};

Where are the device drivers for these?

-- 
Lee Jones [李琼斯]