[RESEND PATCH v16 mfd 8/8] mfd: ocelot: add support for the vsc7512 chip via spi

[Lee Jones]

On Mon, 05 Sep 2022, Colin Foster wrote:

> The VSC7512 is a networking chip that contains several peripherals. Many of
> these peripherals are currently supported by the VSC7513 and VSC7514 chips,
> but those run on an internal CPU. The VSC7512 lacks this CPU, and must be
> controlled externally.
> 
> Utilize the existing drivers by referencing the chip as an MFD. Add support
> for the two MDIO buses, the internal phys, pinctrl, and serial GPIO.
> 
> Signed-off-by: Colin Foster <colin.foster at in-advantage.com>
> Reviewed-by: Vladimir Oltean <vladimir.oltean at nxp.com>
> ---
> 
> v16
>     * Includes fixups:
>     *  ocelot-core.c add includes device.h, export.h, iopoll.h, ioport,h
>     *  ocelot-spi.c add includes device.h, err.h, errno.h, export.h, 
>        mod_devicetable.h, types.h
>     *  Move kconfig.h from ocelot-spi.c to ocelot.h
>     *  Remove unnecessary byteorder.h
>     * Utilize resource_size() function
> 
> v15
>     * Add missed include bits.h
>     * Clean _SIZE macros to make them all the same width (e.g. 0x004)
>     * Remove unnecessary ret = ...; return ret; calls
>     * Utilize spi_message_init_with_transfers() instead of
>       spi_message_add_tail() calls in the bus_read routine
>     * Utilize HZ_PER_MHZ from units.h instead of a magic number
>     * Remove unnecessary err < 0 checks
>     * Fix typos in comments
> 
> v14
>     * Add Reviewed tag
>     * Copyright ranges are now "2021-2022"
>     * 100-char width applied instead of 80
>     * Remove invalid dev_err_probe return
>     * Remove "spi" and "dev" elements from ocelot_ddata struct.
>     Since "dev" is available throughout, determine "ddata" and "spi" from
>     there instead of keeping separate references.
>     * Add header guard in drivers/mfd/ocelot.h
>     * Document ocelot_ddata struct
> 
> ---
>  MAINTAINERS               |   1 +
>  drivers/mfd/Kconfig       |  21 +++
>  drivers/mfd/Makefile      |   3 +
>  drivers/mfd/ocelot-core.c | 161 ++++++++++++++++++++
>  drivers/mfd/ocelot-spi.c  | 299 ++++++++++++++++++++++++++++++++++++++
>  drivers/mfd/ocelot.h      |  49 +++++++
>  6 files changed, 534 insertions(+)
>  create mode 100644 drivers/mfd/ocelot-core.c
>  create mode 100644 drivers/mfd/ocelot-spi.c
>  create mode 100644 drivers/mfd/ocelot.h

Applied, thanks.

-- 
Lee Jones [李琼斯]