lkml.org 
[lkml]   [2022]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v6 1/1] gpio: mpfs: add polarfire soc gpio support
On Mon, Aug 15, 2022 at 2:08 PM <lewis.hanly@microchip.com> wrote:

> From: Lewis Hanly <lewis.hanly@microchip.com>
>
> Add a driver to support the Polarfire SoC gpio controller
>
> Signed-off-by: Lewis Hanly <lewis.hanly@microchip.com>

This looks like textbook example of a driver that can use
CONFIG_GPIO_GENERIC

> +config GPIO_POLARFIRE_SOC
> + bool "Microchip FPGA GPIO support"
> + depends on OF_GPIO
> + select GPIOLIB_IRQCHIP

select GPIO_GENERIC

See e.g. drivers/gpio/gpio-ftgpio010.c for an example
of how to use bgpio_init() to set up the helper library to handle
the GPIO side of things and combine it with an irqchip.
You get get/set_multiple() for free with this approach.
Also see documentation for bgpio_init() in
drivers/gpio/gpio-mmio.c.

Yours,
Linus Walleij

\
 
 \ /
  Last update: 2022-08-22 13:29    [W:0.907 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site