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

Andre Przywara
2020-12-02T13:55:44Z

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>
+ */
+
+#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