Re: [PATCH 3/8] pinctrl: sunxi: Add support for the Allwinner H616-R pin controller

Jernej Škrabec
2020-12-02T17:50:27Z

Dne sreda, 02. december 2020 ob 14:54:04 CET je Andre Przywara napisal(a):
> There are only two pins left now, used to connect to the PMIC via I2C.
>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
> drivers/pinctrl/sunxi/Kconfig | 5 ++
> drivers/pinctrl/sunxi/Makefile | 1 +
> drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c | 58 +++++++++++++++++++
> 3 files changed, 64 insertions(+)
> create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c
>
> diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
> index 73e88ce71a48..33751a6a0757 100644
> --- a/drivers/pinctrl/sunxi/Kconfig
> +++ b/drivers/pinctrl/sunxi/Kconfig
> @@ -124,4 +124,9 @@ config PINCTRL_SUN50I_H616
> default ARM64 && ARCH_SUNXI
> select PINCTRL_SUNXI
>
> +config PINCTRL_SUN50I_H616_R
> + bool "Support for the Allwinner H616 R-PIO"
> + default ARM64 && ARCH_SUNXI
> + select PINCTRL_SUNXI
> +
> endif
> diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile
> index 5359327a3c8f..d3440c42b9d6 100644
> --- a/drivers/pinctrl/sunxi/Makefile
> +++ b/drivers/pinctrl/sunxi/Makefile
> @@ -24,5 +24,6 @@ obj-$(CONFIG_PINCTRL_SUN50I_H5) +=
pinctrl-sun50i-h5.o
> obj-$(CONFIG_PINCTRL_SUN50I_H6) += pinctrl-sun50i-h6.o
> obj-$(CONFIG_PINCTRL_SUN50I_H6_R) += pinctrl-sun50i-h6-r.o
> obj-$(CONFIG_PINCTRL_SUN50I_H616) += pinctrl-sun50i-h616.o
> +obj-$(CONFIG_PINCTRL_SUN50I_H616_R) += pinctrl-sun50i-h616-r.o
> obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o
> obj-$(CONFIG_PINCTRL_SUN9I_A80_R) += pinctrl-sun9i-a80-r.o
> diff --git a/drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c b/drivers/pinctrl/
sunxi/pinctrl-sun50i-h616-r.c
> new file mode 100644
> index 000000000000..eb76c009bf24
> --- /dev/null
> +++ b/drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c
> @@ -0,0 +1,58 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Allwinner H616 R_PIO pin controller driver
> + *
> + * Copyright (C) 2020 Arm Ltd.
> + * Based on former work, which is:
> + * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> + * Copyright (C) 2014 Boris Brezillon
> + * Boris Brezillon <boris.brezillon@free-electrons.com>
> + * Copyright (C) 2014 Maxime Ripard
> + * Maxime Ripard <maxime.ripard@free-electrons.com>
> + */

I'm not sure if it makes sense to reference so many previous work for so
simple driver...

Anyway:

Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>

Best regards,
Jernej

> +
> +#include <linux/init.h>
> +#include <linux/platform_device.h>
> +#include <linux/of.h>
> +#include <linux/of_device.h>
> +#include <linux/pinctrl/pinctrl.h>
> +#include <linux/reset.h>
> +
> +#include "pinctrl-sunxi.h"
> +
> +static const struct sunxi_desc_pin sun50i_h616_r_pins[] = {
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 0),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_i2c")), /* SCK */
> + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
> + SUNXI_FUNCTION(0x0, "gpio_in"),
> + SUNXI_FUNCTION(0x1, "gpio_out"),
> + SUNXI_FUNCTION(0x3, "s_i2c")), /* SDA */
> +};
> +
> +static const struct sunxi_pinctrl_desc sun50i_h616_r_pinctrl_data = {
> + .pins = sun50i_h616_r_pins,
> + .npins = ARRAY_SIZE(sun50i_h616_r_pins),
> + .pin_base = PL_BASE,
> +};
> +
> +static int sun50i_h616_r_pinctrl_probe(struct platform_device *pdev)
> +{
> + return sunxi_pinctrl_init(pdev,
> + &sun50i_h616_r_pinctrl_data);
> +}
> +
> +static const struct of_device_id sun50i_h616_r_pinctrl_match[] = {
> + { .compatible = "allwinner,sun50i-h616-r-pinctrl", },
> + {}
> +};
> +
> +static struct platform_driver sun50i_h616_r_pinctrl_driver = {
> + .probe = sun50i_h616_r_pinctrl_probe,
> + .driver = {
> + .name = "sun50i-h616-r-pinctrl",
> + .of_match_table = sun50i_h616_r_pinctrl_match,
> + },
> +};
> +builtin_platform_driver(sun50i_h616_r_pinctrl_driver);
> --
> 2.17.5
>
>