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pinctrl: sunxi: Add support for the Allwinner H616-R pin controller

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There are only two pins left now, used to connect to the PMIC via I2C.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://lore.kernel.org/r/20210118020848.11721-6-andre.przywara@arm.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andre Przywara 2021-01-18 02:08:32 +00:00 committed by Linus Walleij
parent 25adc29407
commit 561c1cf17c
3 changed files with 62 additions and 0 deletions
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5
drivers/pinctrl/sunxi/Kconfig
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@ -124,4 +124,9 @@ config PINCTRL_SUN50I_H616
default ARM64 && ARCH_SUNXI default ARM64 && ARCH_SUNXI
select PINCTRL_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 endif

1
drivers/pinctrl/sunxi/Makefile
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@ -24,5 +24,6 @@ obj-$(CONFIG_PINCTRL_SUN50I_H5) += pinctrl-sun50i-h5.o
obj-$(CONFIG_PINCTRL_SUN50I_H6) += pinctrl-sun50i-h6.o obj-$(CONFIG_PINCTRL_SUN50I_H6) += pinctrl-sun50i-h6.o
obj-$(CONFIG_PINCTRL_SUN50I_H6_R) += pinctrl-sun50i-h6-r.o obj-$(CONFIG_PINCTRL_SUN50I_H6_R) += pinctrl-sun50i-h6-r.o
obj-$(CONFIG_PINCTRL_SUN50I_H616) += pinctrl-sun50i-h616.o obj-$(CONFIG_PINCTRL_SUN50I_H616) += pinctrl-sun50i-h616.o
obj-$(CONFIG_PINCTRL_SUN50I_H616_R) += pinctrl-sun50i-h616-r.o
obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o
obj-$(CONFIG_PINCTRL_SUN9I_A80_R) += pinctrl-sun9i-a80-r.o obj-$(CONFIG_PINCTRL_SUN9I_A80_R) += pinctrl-sun9i-a80-r.o

56
drivers/pinctrl/sunxi/pinctrl-sun50i-h616-r.c Normal file
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@ -0,0 +1,56 @@
// 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>
*/
#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(0x2, "s_rsb"), /* SCK */
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(0x2, "s_rsb"), /* SDA */
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);