[PATCH 3/7] pinctrl: sunxi: add support for H6 R_PIO pin controller

Icenowy Zheng
2018-05-03T18:38:43Z

Allwinner H6 SoC has a R_PIO pin controller like other Allwinner SoCs,
which controls the PL and PM pin banks.

Add support for it.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
---
.../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 1 +
drivers/pinctrl/sunxi/Kconfig | 4 +
drivers/pinctrl/sunxi/Makefile | 1 +
drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c | 128 +++++++++++++++++++++
4 files changed, 134 insertions(+)
create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c

diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
index 64bc5c2a76da..258a4648ab81 100644
--- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
@@ -28,6 +28,7 @@ Required properties:
"allwinner,sun50i-a64-r-pinctrl"
"allwinner,sun50i-h5-pinctrl"
"allwinner,sun50i-h6-pinctrl"
+ "allwinner,sun50i-h6-r-pinctrl"
"nextthing,gr8-pinctrl"

- reg: Should contain the register physical address and length for the
diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
index 5de1f63b07bb..95282cda6cee 100644
--- a/drivers/pinctrl/sunxi/Kconfig
+++ b/drivers/pinctrl/sunxi/Kconfig
@@ -81,4 +81,8 @@ config PINCTRL_SUN50I_H6
def_bool ARM64 && ARCH_SUNXI
select PINCTRL_SUNXI

+config PINCTRL_SUN50I_H6_R
+ def_bool ARM64 && ARCH_SUNXI
+ select PINCTRL_SUNXI
+
endif
diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile
index 3c4aec6611e9..adb8443aa55c 100644
--- a/drivers/pinctrl/sunxi/Makefile
+++ b/drivers/pinctrl/sunxi/Makefile
@@ -19,5 +19,6 @@ obj-$(CONFIG_PINCTRL_SUN8I_H3_R) += pinctrl-sun8i-h3-r.o
obj-$(CONFIG_PINCTRL_SUN8I_V3S) += pinctrl-sun8i-v3s.o
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_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-h6-r.c b/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c
new file mode 100644
index 000000000000..4557e18d5989
--- /dev/null
+++ b/drivers/pinctrl/sunxi/pinctrl-sun50i-h6-r.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Allwinner H6 R_PIO pin controller driver
+ *
+ * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
+ *
+ * Based on pinctrl-sun6i-a31-r.c, which is:
+ * 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_h6_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_FUNCTION_IRQ_BANK(0x6, 0, 0)), /* PL_EINT0 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 1),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x3, "s_i2c"), /* SDA */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 1)), /* PL_EINT1 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 2),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_uart"), /* TX */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 2)), /* PL_EINT2 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 3),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_uart"), /* RX */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 3)), /* PL_EINT3 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_jtag"), /* MS */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 4)), /* PL_EINT4 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_jtag"), /* CK */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 5)), /* PL_EINT5 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_jtag"), /* DO */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 6)), /* PL_EINT6 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_jtag"), /* DI */
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 7)), /* PL_EINT7 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 8),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_pwm"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 8)), /* PL_EINT8 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 9),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_cir_rx"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 9)), /* PL_EINT9 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 10),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION(0x2, "s_w1"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 10)), /* PL_EINT10 */
+ /* Hole */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 0),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 0)), /* PM_EINT0 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 1),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 1)), /* PM_EINT1 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 2),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 2), /* PM_EINT2 */
+ SUNXI_FUNCTION(0x3, "1wire")),
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 3),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 3)), /* PM_EINT3 */
+ SUNXI_PIN(SUNXI_PINCTRL_PIN(M, 4),
+ SUNXI_FUNCTION(0x0, "gpio_in"),
+ SUNXI_FUNCTION(0x1, "gpio_out"),
+ SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)), /* PM_EINT4 */
+};
+
+static const struct sunxi_pinctrl_desc sun50i_h6_r_pinctrl_data = {
+ .pins = sun50i_h6_r_pins,
+ .npins = ARRAY_SIZE(sun50i_h6_r_pins),
+ .pin_base = PL_BASE,
+ .irq_banks = 2,
+};
+
+static int sun50i_h6_r_pinctrl_probe(struct platform_device *pdev)
+{
+ return sunxi_pinctrl_init(pdev,
+ &sun50i_h6_r_pinctrl_data);
+}
+
+static const struct of_device_id sun50i_h6_r_pinctrl_match[] = {
+ { .compatible = "allwinner,sun50i-h6-r-pinctrl", },
+ {}
+};
+
+static struct platform_driver sun50i_h6_r_pinctrl_driver = {
+ .probe = sun50i_h6_r_pinctrl_probe,
+ .driver = {
+ .name = "sun50i-h6-r-pinctrl",
+ .of_match_table = sun50i_h6_r_pinctrl_match,
+ },
+};
+builtin_platform_driver(sun50i_h6_r_pinctrl_driver);
--
2.15.1