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SubjectRe: [PATCH v1 tty-next 1/2] 8250: microchip: pci1xxxx: Add driver for the quad-uart function in the multi-function endpoint of pci1xxxx device.
Hi Kumaravel,

On Tue, Aug 30, 2022 at 8:01 PM Kumaravel Thiagarajan
<kumaravel.thiagarajan@microchip.com> wrote:
> pci1xxxx is a PCIe switch with a multi-function endpoint on one of its
> downstream ports. Quad-uart is one of the functions in the
> multi-function endpoint. This driver loads for the quad-uart and
> enumerates single or multiple instances of uart based on the PCIe
> subsystem device ID.
>
> Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>

Thanks for your patch!

> --- /dev/null
> +++ b/drivers/tty/serial/8250/8250_pci1xxxx.c

> +static struct pci_driver pci1xxxx_pci_driver = {
> + .name = "pci1xxxx serial",
> + .probe = pci1xxxx_serial_probe,
> + .remove = pci1xxxx_serial_remove,
> + .id_table = pci1xxxx_pci_tbl,
> +};
> +
> +module_pci_driver(pci1xxxx_pci_driver);

> --- a/drivers/tty/serial/8250/Kconfig
> +++ b/drivers/tty/serial/8250/Kconfig
> @@ -528,6 +528,15 @@ config SERIAL_8250_TEGRA
> Select this option if you have machine with an NVIDIA Tegra SoC and
> wish to enable 8250 serial driver for the Tegra serial interfaces.
>
> +config SERIAL_8250_PCI1XXXX
> + tristate "Microchip 8250 based serial port"
> + depends on SERIAL_8250

As this is a PCI driver, I guess it should depend on PCI
(|| COMPILE_TEST)?

> + help
> + Select this option if you have a setup with Microchip PCIe
> + Switch with serial port enabled and wish to enable 8250
> + serial driver for the serial interface. This driver support
> + will ensure to support baud rates upto 1.5Mpbs.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

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