From d22bf40f46380c105aecef8a38106dcfaba88907 Mon Sep 17 00:00:00 2001 From: Chen-Yu Tsai Date: Tue, 17 Jun 2014 22:52:52 +0800 Subject: [PATCH] pinctrl: sunxi: Add A23 R_PIO controller support The A23 has a R_PIO pin controller, similar to the one found on the A31 SoC. Add support for the pins controlled by the R_PIO controller. Signed-off-by: Chen-Yu Tsai Acked-by: Maxime Ripard Signed-off-by: Linus Walleij --- .../pinctrl/allwinner,sunxi-pinctrl.txt | 1 + drivers/pinctrl/sunxi/Kconfig | 5 + drivers/pinctrl/sunxi/Makefile | 1 + drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c | 142 ++++++++++++++++++ 4 files changed, 149 insertions(+) create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt index 44a78c1fee83..93ce12eb422a 100644 --- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt @@ -14,6 +14,7 @@ Required properties: "allwinner,sun6i-a31-r-pinctrl" "allwinner,sun7i-a20-pinctrl" "allwinner,sun8i-a23-pinctrl" + "allwinner,sun8i-a23-r-pinctrl" - reg: Should contain the register physical address and length for the pin controller. diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig index 7e6a2684949a..a5e10f777ed2 100644 --- a/drivers/pinctrl/sunxi/Kconfig +++ b/drivers/pinctrl/sunxi/Kconfig @@ -34,4 +34,9 @@ config PINCTRL_SUN8I_A23 def_bool MACH_SUN8I select PINCTRL_SUNXI_COMMON +config PINCTRL_SUN8I_A23_R + def_bool MACH_SUN8I + depends on RESET_CONTROLLER + select PINCTRL_SUNXI_COMMON + endif diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile index 850cd5014dd8..e797efb02901 100644 --- a/drivers/pinctrl/sunxi/Makefile +++ b/drivers/pinctrl/sunxi/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_PINCTRL_SUN6I_A31) += pinctrl-sun6i-a31.o obj-$(CONFIG_PINCTRL_SUN6I_A31_R) += pinctrl-sun6i-a31-r.o obj-$(CONFIG_PINCTRL_SUN7I_A20) += pinctrl-sun7i-a20.o obj-$(CONFIG_PINCTRL_SUN8I_A23) += pinctrl-sun8i-a23.o +obj-$(CONFIG_PINCTRL_SUN8I_A23_R) += pinctrl-sun8i-a23-r.o diff --git a/drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c b/drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c new file mode 100644 index 000000000000..90f3b3a7c51e --- /dev/null +++ b/drivers/pinctrl/sunxi/pinctrl-sun8i-a23-r.c @@ -0,0 +1,142 @@ +/* + * Allwinner A23 SoCs special pins pinctrl driver. + * + * Copyright (C) 2014 Chen-Yu Tsai + * Chen-Yu Tsai + * + * Copyright (C) 2014 Boris Brezillon + * Boris Brezillon + * + * Copyright (C) 2014 Maxime Ripard + * Maxime Ripard + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include +#include +#include +#include +#include +#include + +#include "pinctrl-sunxi.h" + +static const struct sunxi_desc_pin sun8i_a23_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_twi"), /* SCK */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 0)), /* PL_EINT0 */ + 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_twi"), /* SDA */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 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(0x4, 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(0x4, 0, 3)), /* PL_EINT3 */ + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 4), + SUNXI_FUNCTION(0x0, "gpio_in"), + SUNXI_FUNCTION(0x1, "gpio_out"), + SUNXI_FUNCTION(0x3, "s_jtag"), /* MS */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 4)), /* PL_EINT4 */ + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 5), + SUNXI_FUNCTION(0x0, "gpio_in"), + SUNXI_FUNCTION(0x1, "gpio_out"), + SUNXI_FUNCTION(0x3, "s_jtag"), /* CK */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 5)), /* PL_EINT5 */ + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 6), + SUNXI_FUNCTION(0x0, "gpio_in"), + SUNXI_FUNCTION(0x1, "gpio_out"), + SUNXI_FUNCTION(0x3, "s_jtag"), /* DO */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 6)), /* PL_EINT6 */ + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 7), + SUNXI_FUNCTION(0x0, "gpio_in"), + SUNXI_FUNCTION(0x1, "gpio_out"), + SUNXI_FUNCTION(0x3, "s_jtag"), /* DI */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 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_twi"), /* SCK */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 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_twi"), /* SDA */ + SUNXI_FUNCTION_IRQ_BANK(0x4, 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_pwm"), + SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 10)), /* PL_EINT10 */ + SUNXI_PIN(SUNXI_PINCTRL_PIN(L, 11), + SUNXI_FUNCTION(0x0, "gpio_in"), + SUNXI_FUNCTION(0x1, "gpio_out"), + SUNXI_FUNCTION_IRQ_BANK(0x4, 0, 11)), /* PL_EINT11 */ +}; + +static const struct sunxi_pinctrl_desc sun8i_a23_r_pinctrl_data = { + .pins = sun8i_a23_r_pins, + .npins = ARRAY_SIZE(sun8i_a23_r_pins), + .pin_base = PL_BASE, + .irq_banks = 1, +}; + +static int sun8i_a23_r_pinctrl_probe(struct platform_device *pdev) +{ + struct reset_control *rstc; + int ret; + + rstc = devm_reset_control_get(&pdev->dev, NULL); + if (IS_ERR(rstc)) { + dev_err(&pdev->dev, "Reset controller missing\n"); + return PTR_ERR(rstc); + } + + ret = reset_control_deassert(rstc); + if (ret) + return ret; + + ret = sunxi_pinctrl_init(pdev, + &sun8i_a23_r_pinctrl_data); + + if (ret) + reset_control_assert(rstc); + + return ret; +} + +static struct of_device_id sun8i_a23_r_pinctrl_match[] = { + { .compatible = "allwinner,sun8i-a23-r-pinctrl", }, + {} +}; +MODULE_DEVICE_TABLE(of, sun8i_a23_r_pinctrl_match); + +static struct platform_driver sun8i_a23_r_pinctrl_driver = { + .probe = sun8i_a23_r_pinctrl_probe, + .driver = { + .name = "sun8i-a23-r-pinctrl", + .owner = THIS_MODULE, + .of_match_table = sun8i_a23_r_pinctrl_match, + }, +}; +module_platform_driver(sun8i_a23_r_pinctrl_driver); + +MODULE_AUTHOR("Chen-Yu Tsai "); +MODULE_AUTHOR("Boris Brezillon