On 3/29/19 9:20 AM, Mason Yang wrote:
> Add a driver for Renesas R-Car Gen3 RPC-IF MFD controller.
>
> Signed-off-by: Mason Yang <masonccyang@xxxxxxxxxxx>
> ---
> drivers/mfd/Kconfig | 9 +++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/renesas-rpc.c | 140 ++++++++++++++++++++++++++++++++++++
> include/linux/mfd/renesas-rpc.h | 154 ++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 304 insertions(+)
> create mode 100644 drivers/mfd/renesas-rpc.c
> create mode 100644 include/linux/mfd/renesas-rpc.h
>
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index 0ce2d8d..a870e12 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -978,6 +978,15 @@ config MFD_RDC321X
> southbridge which provides access to GPIOs and Watchdog using the
> southbridge PCI device configuration space.
>
> +config MFD_RENESAS_RPC
> + tristate "Renesas R-Car Gen3 RPC-IF MFD driver"
> + select MFD_CORE
> + depends on ARCH_RENESAS
> + help
> + This supports for Renesas R-Car Gen3 RPC-IF multifunction device
> + controller which provides either SPI host controller or HyperFlash.
> + You have to select individual components under the corresponding menu.
> +
> config MFD_RT5033
> tristate "Richtek RT5033 Power Management IC"
> depends on I2C
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index b4569ed7..4a49699 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -183,6 +183,7 @@ obj-$(CONFIG_MFD_INTEL_QUARK_I2C_GPIO) += intel_quark_i2c_gpio.o
> obj-$(CONFIG_LPC_SCH) += lpc_sch.o
> obj-$(CONFIG_LPC_ICH) += lpc_ich.o
> obj-$(CONFIG_MFD_RDC321X) += rdc321x-southbridge.o
> +obj-$(CONFIG_MFD_RENESAS_RPC) += renesas-rpc.o
> obj-$(CONFIG_MFD_JANZ_CMODIO) += janz-cmodio.o
> obj-$(CONFIG_MFD_JZ4740_ADC) += jz4740-adc.o
> obj-$(CONFIG_MFD_TPS6586X) += tps6586x.o
> diff --git a/drivers/mfd/renesas-rpc.c b/drivers/mfd/renesas-rpc.c
> new file mode 100644
> index 0000000..c92bb74
> --- /dev/null
> +++ b/drivers/mfd/renesas-rpc.c
> @@ -0,0 +1,140 @@
> +// SPDX-License-Identifier: GPL-2.0
> +//
> +// Copyright (C) 2018 ~ 2019 Renesas Solutions Corp.
> +// Copyright (C) 2019 Macronix International Co., Ltd.
> +//
> +// R-Car Gen3 RPC-IF MFD driver
> +//
> +// Author:
> +// Mason Yang <masonccyang@xxxxxxxxxxx>
> +//
> +
> +#include <linux/mfd/renesas-rpc.h>
> +#include <linux/mfd/core.h>
> +
> +static const struct mfd_cell rpc_hf_ctlr = {
> + .name = "rpc-hf",
> + .of_compatible = "renesas,rcar-rpc-hf",
> +};
> +
> +static const struct mfd_cell rpc_spi_ctlr = {
> + .name = "rpc-spi",
> + .of_compatible = "renesas,rcar-rpc-spi",
> +};
> +
> +static const struct regmap_range rpc_mfd_volatile_ranges[] = {
> + regmap_reg_range(RPC_SMRDR0, RPC_SMRDR0),
> + regmap_reg_range(RPC_SMWDR0, RPC_SMWDR0),
> + regmap_reg_range(RPC_CMNSR, RPC_CMNSR),
> +};
Isn't SMWDR1 volatile too ? And SMRDR1 too ?
[...]
--
Best regards,
Marek Vasut
