| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Oxford Semiconductor OXNAS SoC Family pinctrl driver |
| * |
| * Copyright (C) 2016 Neil Armstrong <narmstrong@baylibre.com> |
| * |
| * Based on pinctrl-pic32.c |
| * Joshua Henderson, <joshua.henderson@microchip.com> |
| * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. |
| */ |
| #include <linux/gpio/driver.h> |
| #include <linux/interrupt.h> |
| #include <linux/io.h> |
| #include <linux/irq.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/pinctrl/pinconf.h> |
| #include <linux/pinctrl/pinconf-generic.h> |
| #include <linux/pinctrl/pinctrl.h> |
| #include <linux/pinctrl/pinmux.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <linux/regmap.h> |
| #include <linux/mfd/syscon.h> |
| |
| #include "pinctrl-utils.h" |
| |
| #define PINS_PER_BANK 32 |
| |
| #define GPIO_BANK_START(bank) ((bank) * PINS_PER_BANK) |
| |
| /* OX810 Regmap Offsets */ |
| #define PINMUX_810_PRIMARY_SEL0 0x0c |
| #define PINMUX_810_SECONDARY_SEL0 0x14 |
| #define PINMUX_810_TERTIARY_SEL0 0x8c |
| #define PINMUX_810_PRIMARY_SEL1 0x10 |
| #define PINMUX_810_SECONDARY_SEL1 0x18 |
| #define PINMUX_810_TERTIARY_SEL1 0x90 |
| #define PINMUX_810_PULLUP_CTRL0 0xac |
| #define PINMUX_810_PULLUP_CTRL1 0xb0 |
| |
| /* OX820 Regmap Offsets */ |
| #define PINMUX_820_BANK_OFFSET 0x100000 |
| #define PINMUX_820_SECONDARY_SEL 0x14 |
| #define PINMUX_820_TERTIARY_SEL 0x8c |
| #define PINMUX_820_QUATERNARY_SEL 0x94 |
| #define PINMUX_820_DEBUG_SEL 0x9c |
| #define PINMUX_820_ALTERNATIVE_SEL 0xa4 |
| #define PINMUX_820_PULLUP_CTRL 0xac |
| |
| /* GPIO Registers */ |
| #define INPUT_VALUE 0x00 |
| #define OUTPUT_EN 0x04 |
| #define IRQ_PENDING 0x0c |
| #define OUTPUT_SET 0x14 |
| #define OUTPUT_CLEAR 0x18 |
| #define OUTPUT_EN_SET 0x1c |
| #define OUTPUT_EN_CLEAR 0x20 |
| #define RE_IRQ_ENABLE 0x28 |
| #define FE_IRQ_ENABLE 0x2c |
| |
| struct oxnas_function { |
| const char *name; |
| const char * const *groups; |
| unsigned int ngroups; |
| }; |
| |
| struct oxnas_pin_group { |
| const char *name; |
| unsigned int pin; |
| unsigned int bank; |
| struct oxnas_desc_function *functions; |
| }; |
| |
| struct oxnas_desc_function { |
| const char *name; |
| unsigned int fct; |
| }; |
| |
| struct oxnas_gpio_bank { |
| void __iomem *reg_base; |
| struct gpio_chip gpio_chip; |
| struct irq_chip irq_chip; |
| unsigned int id; |
| }; |
| |
| struct oxnas_pinctrl { |
| struct regmap *regmap; |
| struct device *dev; |
| struct pinctrl_dev *pctldev; |
| const struct oxnas_function *functions; |
| unsigned int nfunctions; |
| const struct oxnas_pin_group *groups; |
| unsigned int ngroups; |
| struct oxnas_gpio_bank *gpio_banks; |
| unsigned int nbanks; |
| }; |
| |
| struct oxnas_pinctrl_data { |
| struct pinctrl_desc *desc; |
| struct oxnas_pinctrl *pctl; |
| }; |
| |
| static const struct pinctrl_pin_desc oxnas_ox810se_pins[] = { |
| PINCTRL_PIN(0, "gpio0"), |
| PINCTRL_PIN(1, "gpio1"), |
| PINCTRL_PIN(2, "gpio2"), |
| PINCTRL_PIN(3, "gpio3"), |
| PINCTRL_PIN(4, "gpio4"), |
| PINCTRL_PIN(5, "gpio5"), |
| PINCTRL_PIN(6, "gpio6"), |
| PINCTRL_PIN(7, "gpio7"), |
| PINCTRL_PIN(8, "gpio8"), |
| PINCTRL_PIN(9, "gpio9"), |
| PINCTRL_PIN(10, "gpio10"), |
| PINCTRL_PIN(11, "gpio11"), |
| PINCTRL_PIN(12, "gpio12"), |
| PINCTRL_PIN(13, "gpio13"), |
| PINCTRL_PIN(14, "gpio14"), |
| PINCTRL_PIN(15, "gpio15"), |
| PINCTRL_PIN(16, "gpio16"), |
| PINCTRL_PIN(17, "gpio17"), |
| PINCTRL_PIN(18, "gpio18"), |
| PINCTRL_PIN(19, "gpio19"), |
| PINCTRL_PIN(20, "gpio20"), |
| PINCTRL_PIN(21, "gpio21"), |
| PINCTRL_PIN(22, "gpio22"), |
| PINCTRL_PIN(23, "gpio23"), |
| PINCTRL_PIN(24, "gpio24"), |
| PINCTRL_PIN(25, "gpio25"), |
| PINCTRL_PIN(26, "gpio26"), |
| PINCTRL_PIN(27, "gpio27"), |
| PINCTRL_PIN(28, "gpio28"), |
| PINCTRL_PIN(29, "gpio29"), |
| PINCTRL_PIN(30, "gpio30"), |
| PINCTRL_PIN(31, "gpio31"), |
| PINCTRL_PIN(32, "gpio32"), |
| PINCTRL_PIN(33, "gpio33"), |
| PINCTRL_PIN(34, "gpio34"), |
| }; |
| |
| static const struct pinctrl_pin_desc oxnas_ox820_pins[] = { |
| PINCTRL_PIN(0, "gpio0"), |
| PINCTRL_PIN(1, "gpio1"), |
| PINCTRL_PIN(2, "gpio2"), |
| PINCTRL_PIN(3, "gpio3"), |
| PINCTRL_PIN(4, "gpio4"), |
| PINCTRL_PIN(5, "gpio5"), |
| PINCTRL_PIN(6, "gpio6"), |
| PINCTRL_PIN(7, "gpio7"), |
| PINCTRL_PIN(8, "gpio8"), |
| PINCTRL_PIN(9, "gpio9"), |
| PINCTRL_PIN(10, "gpio10"), |
| PINCTRL_PIN(11, "gpio11"), |
| PINCTRL_PIN(12, "gpio12"), |
| PINCTRL_PIN(13, "gpio13"), |
| PINCTRL_PIN(14, "gpio14"), |
| PINCTRL_PIN(15, "gpio15"), |
| PINCTRL_PIN(16, "gpio16"), |
| PINCTRL_PIN(17, "gpio17"), |
| PINCTRL_PIN(18, "gpio18"), |
| PINCTRL_PIN(19, "gpio19"), |
| PINCTRL_PIN(20, "gpio20"), |
| PINCTRL_PIN(21, "gpio21"), |
| PINCTRL_PIN(22, "gpio22"), |
| PINCTRL_PIN(23, "gpio23"), |
| PINCTRL_PIN(24, "gpio24"), |
| PINCTRL_PIN(25, "gpio25"), |
| PINCTRL_PIN(26, "gpio26"), |
| PINCTRL_PIN(27, "gpio27"), |
| PINCTRL_PIN(28, "gpio28"), |
| PINCTRL_PIN(29, "gpio29"), |
| PINCTRL_PIN(30, "gpio30"), |
| PINCTRL_PIN(31, "gpio31"), |
| PINCTRL_PIN(32, "gpio32"), |
| PINCTRL_PIN(33, "gpio33"), |
| PINCTRL_PIN(34, "gpio34"), |
| PINCTRL_PIN(35, "gpio35"), |
| PINCTRL_PIN(36, "gpio36"), |
| PINCTRL_PIN(37, "gpio37"), |
| PINCTRL_PIN(38, "gpio38"), |
| PINCTRL_PIN(39, "gpio39"), |
| PINCTRL_PIN(40, "gpio40"), |
| PINCTRL_PIN(41, "gpio41"), |
| PINCTRL_PIN(42, "gpio42"), |
| PINCTRL_PIN(43, "gpio43"), |
| PINCTRL_PIN(44, "gpio44"), |
| PINCTRL_PIN(45, "gpio45"), |
| PINCTRL_PIN(46, "gpio46"), |
| PINCTRL_PIN(47, "gpio47"), |
| PINCTRL_PIN(48, "gpio48"), |
| PINCTRL_PIN(49, "gpio49"), |
| }; |
| |
| static const char * const oxnas_ox810se_fct0_group[] = { |
| "gpio0", "gpio1", "gpio2", "gpio3", |
| "gpio4", "gpio5", "gpio6", "gpio7", |
| "gpio8", "gpio9", "gpio10", "gpio11", |
| "gpio12", "gpio13", "gpio14", "gpio15", |
| "gpio16", "gpio17", "gpio18", "gpio19", |
| "gpio20", "gpio21", "gpio22", "gpio23", |
| "gpio24", "gpio25", "gpio26", "gpio27", |
| "gpio28", "gpio29", "gpio30", "gpio31", |
| "gpio32", "gpio33", "gpio34" |
| }; |
| |
| static const char * const oxnas_ox810se_fct3_group[] = { |
| "gpio0", "gpio1", "gpio2", "gpio3", |
| "gpio4", "gpio5", "gpio6", "gpio7", |
| "gpio8", "gpio9", |
| "gpio20", |
| "gpio22", "gpio23", "gpio24", "gpio25", |
| "gpio26", "gpio27", "gpio28", "gpio29", |
| "gpio30", "gpio31", "gpio32", "gpio33", |
| "gpio34" |
| }; |
| |
| static const char * const oxnas_ox820_fct0_group[] = { |
| "gpio0", "gpio1", "gpio2", "gpio3", |
| "gpio4", "gpio5", "gpio6", "gpio7", |
| "gpio8", "gpio9", "gpio10", "gpio11", |
| "gpio12", "gpio13", "gpio14", "gpio15", |
| "gpio16", "gpio17", "gpio18", "gpio19", |
| "gpio20", "gpio21", "gpio22", "gpio23", |
| "gpio24", "gpio25", "gpio26", "gpio27", |
| "gpio28", "gpio29", "gpio30", "gpio31", |
| "gpio32", "gpio33", "gpio34", "gpio35", |
| "gpio36", "gpio37", "gpio38", "gpio39", |
| "gpio40", "gpio41", "gpio42", "gpio43", |
| "gpio44", "gpio45", "gpio46", "gpio47", |
| "gpio48", "gpio49" |
| }; |
| |
| static const char * const oxnas_ox820_fct1_group[] = { |
| "gpio3", "gpio4", |
| "gpio12", "gpio13", "gpio14", "gpio15", |
| "gpio16", "gpio17", "gpio18", "gpio19", |
| "gpio20", "gpio21", "gpio22", "gpio23", |
| "gpio24" |
| }; |
| |
| static const char * const oxnas_ox820_fct4_group[] = { |
| "gpio5", "gpio6", "gpio7", "gpio8", |
| "gpio24", "gpio25", "gpio26", "gpio27", |
| "gpio40", "gpio41", "gpio42", "gpio43" |
| }; |
| |
| static const char * const oxnas_ox820_fct5_group[] = { |
| "gpio28", "gpio29", "gpio30", "gpio31" |
| }; |
| |
| #define FUNCTION(_name, _gr) \ |
| { \ |
| .name = #_name, \ |
| .groups = oxnas_##_gr##_group, \ |
| .ngroups = ARRAY_SIZE(oxnas_##_gr##_group), \ |
| } |
| |
| static const struct oxnas_function oxnas_ox810se_functions[] = { |
| FUNCTION(gpio, ox810se_fct0), |
| FUNCTION(fct3, ox810se_fct3), |
| }; |
| |
| static const struct oxnas_function oxnas_ox820_functions[] = { |
| FUNCTION(gpio, ox820_fct0), |
| FUNCTION(fct1, ox820_fct1), |
| FUNCTION(fct4, ox820_fct4), |
| FUNCTION(fct5, ox820_fct5), |
| }; |
| |
| #define OXNAS_PINCTRL_GROUP(_pin, _name, ...) \ |
| { \ |
| .name = #_name, \ |
| .pin = _pin, \ |
| .bank = _pin / PINS_PER_BANK, \ |
| .functions = (struct oxnas_desc_function[]){ \ |
| __VA_ARGS__, { } }, \ |
| } |
| |
| #define OXNAS_PINCTRL_FUNCTION(_name, _fct) \ |
| { \ |
| .name = #_name, \ |
| .fct = _fct, \ |
| } |
| |
| static const struct oxnas_pin_group oxnas_ox810se_groups[] = { |
| OXNAS_PINCTRL_GROUP(0, gpio0, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(1, gpio1, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(2, gpio2, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(3, gpio3, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(4, gpio4, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(5, gpio5, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(6, gpio6, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(7, gpio7, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(8, gpio8, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(9, gpio9, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(10, gpio10, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(11, gpio11, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(12, gpio12, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(13, gpio13, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(14, gpio14, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(15, gpio15, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(16, gpio16, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(17, gpio17, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(18, gpio18, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(19, gpio19, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(20, gpio20, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(21, gpio21, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(22, gpio22, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(23, gpio23, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(24, gpio24, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(25, gpio25, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(26, gpio26, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(27, gpio27, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(28, gpio28, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(29, gpio29, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(30, gpio30, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(31, gpio31, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(32, gpio32, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(33, gpio33, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| OXNAS_PINCTRL_GROUP(34, gpio34, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct3, 3)), |
| }; |
| |
| static const struct oxnas_pin_group oxnas_ox820_groups[] = { |
| OXNAS_PINCTRL_GROUP(0, gpio0, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(1, gpio1, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(2, gpio2, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(3, gpio3, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(4, gpio4, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(5, gpio5, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(6, gpio6, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(7, gpio7, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(8, gpio8, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(9, gpio9, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(10, gpio10, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(11, gpio11, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(12, gpio12, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(13, gpio13, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(14, gpio14, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(15, gpio15, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(16, gpio16, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(17, gpio17, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(18, gpio18, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(19, gpio19, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(20, gpio20, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(21, gpio21, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(22, gpio22, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(23, gpio23, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1)), |
| OXNAS_PINCTRL_GROUP(24, gpio24, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct1, 1), |
| OXNAS_PINCTRL_FUNCTION(fct4, 5)), |
| OXNAS_PINCTRL_GROUP(25, gpio25, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(26, gpio26, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(27, gpio27, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(28, gpio28, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct5, 5)), |
| OXNAS_PINCTRL_GROUP(29, gpio29, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct5, 5)), |
| OXNAS_PINCTRL_GROUP(30, gpio30, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct5, 5)), |
| OXNAS_PINCTRL_GROUP(31, gpio31, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct5, 5)), |
| OXNAS_PINCTRL_GROUP(32, gpio32, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(33, gpio33, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(34, gpio34, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(35, gpio35, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(36, gpio36, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(37, gpio37, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(38, gpio38, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(39, gpio39, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(40, gpio40, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(41, gpio41, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(42, gpio42, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(43, gpio43, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0), |
| OXNAS_PINCTRL_FUNCTION(fct4, 4)), |
| OXNAS_PINCTRL_GROUP(44, gpio44, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(45, gpio45, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(46, gpio46, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(47, gpio47, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(48, gpio48, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| OXNAS_PINCTRL_GROUP(49, gpio49, |
| OXNAS_PINCTRL_FUNCTION(gpio, 0)), |
| }; |
| |
| static inline struct oxnas_gpio_bank *pctl_to_bank(struct oxnas_pinctrl *pctl, |
| unsigned int pin) |
| { |
| return &pctl->gpio_banks[pin / PINS_PER_BANK]; |
| } |
| |
| static int oxnas_pinctrl_get_groups_count(struct pinctrl_dev *pctldev) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| |
| return pctl->ngroups; |
| } |
| |
| static const char *oxnas_pinctrl_get_group_name(struct pinctrl_dev *pctldev, |
| unsigned int group) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| |
| return pctl->groups[group].name; |
| } |
| |
| static int oxnas_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, |
| unsigned int group, |
| const unsigned int **pins, |
| unsigned int *num_pins) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| |
| *pins = &pctl->groups[group].pin; |
| *num_pins = 1; |
| |
| return 0; |
| } |
| |
| static const struct pinctrl_ops oxnas_pinctrl_ops = { |
| .get_groups_count = oxnas_pinctrl_get_groups_count, |
| .get_group_name = oxnas_pinctrl_get_group_name, |
| .get_group_pins = oxnas_pinctrl_get_group_pins, |
| .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, |
| .dt_free_map = pinctrl_utils_free_map, |
| }; |
| |
| static int oxnas_pinmux_get_functions_count(struct pinctrl_dev *pctldev) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| |
| return pctl->nfunctions; |
| } |
| |
| static const char * |
| oxnas_pinmux_get_function_name(struct pinctrl_dev *pctldev, unsigned int func) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| |
| return pctl->functions[func].name; |
| } |
| |
| static int oxnas_pinmux_get_function_groups(struct pinctrl_dev *pctldev, |
| unsigned int func, |
| const char * const **groups, |
| unsigned int * const num_groups) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| |
| *groups = pctl->functions[func].groups; |
| *num_groups = pctl->functions[func].ngroups; |
| |
| return 0; |
| } |
| |
| static int oxnas_ox810se_pinmux_enable(struct pinctrl_dev *pctldev, |
| unsigned int func, unsigned int group) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct oxnas_pin_group *pg = &pctl->groups[group]; |
| const struct oxnas_function *pf = &pctl->functions[func]; |
| const char *fname = pf->name; |
| struct oxnas_desc_function *functions = pg->functions; |
| u32 mask = BIT(pg->pin); |
| |
| while (functions->name) { |
| if (!strcmp(functions->name, fname)) { |
| dev_dbg(pctl->dev, |
| "setting function %s bank %d pin %d fct %d mask %x\n", |
| fname, pg->bank, pg->pin, |
| functions->fct, mask); |
| |
| regmap_write_bits(pctl->regmap, |
| (pg->bank ? |
| PINMUX_810_PRIMARY_SEL1 : |
| PINMUX_810_PRIMARY_SEL0), |
| mask, |
| (functions->fct == 1 ? |
| mask : 0)); |
| regmap_write_bits(pctl->regmap, |
| (pg->bank ? |
| PINMUX_810_SECONDARY_SEL1 : |
| PINMUX_810_SECONDARY_SEL0), |
| mask, |
| (functions->fct == 2 ? |
| mask : 0)); |
| regmap_write_bits(pctl->regmap, |
| (pg->bank ? |
| PINMUX_810_TERTIARY_SEL1 : |
| PINMUX_810_TERTIARY_SEL0), |
| mask, |
| (functions->fct == 3 ? |
| mask : 0)); |
| |
| return 0; |
| } |
| |
| functions++; |
| } |
| |
| dev_err(pctl->dev, "cannot mux pin %u to function %u\n", group, func); |
| |
| return -EINVAL; |
| } |
| |
| static int oxnas_ox820_pinmux_enable(struct pinctrl_dev *pctldev, |
| unsigned int func, unsigned int group) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| const struct oxnas_pin_group *pg = &pctl->groups[group]; |
| const struct oxnas_function *pf = &pctl->functions[func]; |
| const char *fname = pf->name; |
| struct oxnas_desc_function *functions = pg->functions; |
| unsigned int offset = (pg->bank ? PINMUX_820_BANK_OFFSET : 0); |
| u32 mask = BIT(pg->pin); |
| |
| while (functions->name) { |
| if (!strcmp(functions->name, fname)) { |
| dev_dbg(pctl->dev, |
| "setting function %s bank %d pin %d fct %d mask %x\n", |
| fname, pg->bank, pg->pin, |
| functions->fct, mask); |
| |
| regmap_write_bits(pctl->regmap, |
| offset + PINMUX_820_SECONDARY_SEL, |
| mask, |
| (functions->fct == 1 ? |
| mask : 0)); |
| regmap_write_bits(pctl->regmap, |
| offset + PINMUX_820_TERTIARY_SEL, |
| mask, |
| (functions->fct == 2 ? |
| mask : 0)); |
| regmap_write_bits(pctl->regmap, |
| offset + PINMUX_820_QUATERNARY_SEL, |
| mask, |
| (functions->fct == 3 ? |
| mask : 0)); |
| regmap_write_bits(pctl->regmap, |
| offset + PINMUX_820_DEBUG_SEL, |
| mask, |
| (functions->fct == 4 ? |
| mask : 0)); |
| regmap_write_bits(pctl->regmap, |
| offset + PINMUX_820_ALTERNATIVE_SEL, |
| mask, |
| (functions->fct == 5 ? |
| mask : 0)); |
| |
| return 0; |
| } |
| |
| functions++; |
| } |
| |
| dev_err(pctl->dev, "cannot mux pin %u to function %u\n", group, func); |
| |
| return -EINVAL; |
| } |
| |
| static int oxnas_ox810se_gpio_request_enable(struct pinctrl_dev *pctldev, |
| struct pinctrl_gpio_range *range, |
| unsigned int offset) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(range->gc); |
| u32 mask = BIT(offset - bank->gpio_chip.base); |
| |
| dev_dbg(pctl->dev, "requesting gpio %d in bank %d (id %d) with mask 0x%x\n", |
| offset, bank->gpio_chip.base, bank->id, mask); |
| |
| regmap_write_bits(pctl->regmap, |
| (bank->id ? |
| PINMUX_810_PRIMARY_SEL1 : |
| PINMUX_810_PRIMARY_SEL0), |
| mask, 0); |
| regmap_write_bits(pctl->regmap, |
| (bank->id ? |
| PINMUX_810_SECONDARY_SEL1 : |
| PINMUX_810_SECONDARY_SEL0), |
| mask, 0); |
| regmap_write_bits(pctl->regmap, |
| (bank->id ? |
| PINMUX_810_TERTIARY_SEL1 : |
| PINMUX_810_TERTIARY_SEL0), |
| mask, 0); |
| |
| return 0; |
| } |
| |
| static int oxnas_ox820_gpio_request_enable(struct pinctrl_dev *pctldev, |
| struct pinctrl_gpio_range *range, |
| unsigned int offset) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(range->gc); |
| unsigned int bank_offset = (bank->id ? PINMUX_820_BANK_OFFSET : 0); |
| u32 mask = BIT(offset - bank->gpio_chip.base); |
| |
| dev_dbg(pctl->dev, "requesting gpio %d in bank %d (id %d) with mask 0x%x\n", |
| offset, bank->gpio_chip.base, bank->id, mask); |
| |
| regmap_write_bits(pctl->regmap, |
| bank_offset + PINMUX_820_SECONDARY_SEL, |
| mask, 0); |
| regmap_write_bits(pctl->regmap, |
| bank_offset + PINMUX_820_TERTIARY_SEL, |
| mask, 0); |
| regmap_write_bits(pctl->regmap, |
| bank_offset + PINMUX_820_QUATERNARY_SEL, |
| mask, 0); |
| regmap_write_bits(pctl->regmap, |
| bank_offset + PINMUX_820_DEBUG_SEL, |
| mask, 0); |
| regmap_write_bits(pctl->regmap, |
| bank_offset + PINMUX_820_ALTERNATIVE_SEL, |
| mask, 0); |
| |
| return 0; |
| } |
| |
| static int oxnas_gpio_get_direction(struct gpio_chip *chip, |
| unsigned int offset) |
| { |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| u32 mask = BIT(offset); |
| |
| return !(readl_relaxed(bank->reg_base + OUTPUT_EN) & mask); |
| } |
| |
| static int oxnas_gpio_direction_input(struct gpio_chip *chip, |
| unsigned int offset) |
| { |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| u32 mask = BIT(offset); |
| |
| writel_relaxed(mask, bank->reg_base + OUTPUT_EN_CLEAR); |
| |
| return 0; |
| } |
| |
| static int oxnas_gpio_get(struct gpio_chip *chip, unsigned int offset) |
| { |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| u32 mask = BIT(offset); |
| |
| return (readl_relaxed(bank->reg_base + INPUT_VALUE) & mask) != 0; |
| } |
| |
| static void oxnas_gpio_set(struct gpio_chip *chip, unsigned int offset, |
| int value) |
| { |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| u32 mask = BIT(offset); |
| |
| if (value) |
| writel_relaxed(mask, bank->reg_base + OUTPUT_SET); |
| else |
| writel_relaxed(mask, bank->reg_base + OUTPUT_CLEAR); |
| } |
| |
| static int oxnas_gpio_direction_output(struct gpio_chip *chip, |
| unsigned int offset, int value) |
| { |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| u32 mask = BIT(offset); |
| |
| oxnas_gpio_set(chip, offset, value); |
| writel_relaxed(mask, bank->reg_base + OUTPUT_EN_SET); |
| |
| return 0; |
| } |
| |
| static int oxnas_gpio_set_direction(struct pinctrl_dev *pctldev, |
| struct pinctrl_gpio_range *range, |
| unsigned int offset, bool input) |
| { |
| struct gpio_chip *chip = range->gc; |
| |
| if (input) |
| oxnas_gpio_direction_input(chip, offset); |
| else |
| oxnas_gpio_direction_output(chip, offset, 0); |
| |
| return 0; |
| } |
| |
| static const struct pinmux_ops oxnas_ox810se_pinmux_ops = { |
| .get_functions_count = oxnas_pinmux_get_functions_count, |
| .get_function_name = oxnas_pinmux_get_function_name, |
| .get_function_groups = oxnas_pinmux_get_function_groups, |
| .set_mux = oxnas_ox810se_pinmux_enable, |
| .gpio_request_enable = oxnas_ox810se_gpio_request_enable, |
| .gpio_set_direction = oxnas_gpio_set_direction, |
| }; |
| |
| static const struct pinmux_ops oxnas_ox820_pinmux_ops = { |
| .get_functions_count = oxnas_pinmux_get_functions_count, |
| .get_function_name = oxnas_pinmux_get_function_name, |
| .get_function_groups = oxnas_pinmux_get_function_groups, |
| .set_mux = oxnas_ox820_pinmux_enable, |
| .gpio_request_enable = oxnas_ox820_gpio_request_enable, |
| .gpio_set_direction = oxnas_gpio_set_direction, |
| }; |
| |
| static int oxnas_ox810se_pinconf_get(struct pinctrl_dev *pctldev, |
| unsigned int pin, unsigned long *config) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); |
| unsigned int param = pinconf_to_config_param(*config); |
| u32 mask = BIT(pin - bank->gpio_chip.base); |
| int ret; |
| u32 arg; |
| |
| switch (param) { |
| case PIN_CONFIG_BIAS_PULL_UP: |
| ret = regmap_read(pctl->regmap, |
| (bank->id ? |
| PINMUX_810_PULLUP_CTRL1 : |
| PINMUX_810_PULLUP_CTRL0), |
| &arg); |
| if (ret) |
| return ret; |
| |
| arg = !!(arg & mask); |
| break; |
| default: |
| return -ENOTSUPP; |
| } |
| |
| *config = pinconf_to_config_packed(param, arg); |
| |
| return 0; |
| } |
| |
| static int oxnas_ox820_pinconf_get(struct pinctrl_dev *pctldev, |
| unsigned int pin, unsigned long *config) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); |
| unsigned int param = pinconf_to_config_param(*config); |
| unsigned int bank_offset = (bank->id ? PINMUX_820_BANK_OFFSET : 0); |
| u32 mask = BIT(pin - bank->gpio_chip.base); |
| int ret; |
| u32 arg; |
| |
| switch (param) { |
| case PIN_CONFIG_BIAS_PULL_UP: |
| ret = regmap_read(pctl->regmap, |
| bank_offset + PINMUX_820_PULLUP_CTRL, |
| &arg); |
| if (ret) |
| return ret; |
| |
| arg = !!(arg & mask); |
| break; |
| default: |
| return -ENOTSUPP; |
| } |
| |
| *config = pinconf_to_config_packed(param, arg); |
| |
| return 0; |
| } |
| |
| static int oxnas_ox810se_pinconf_set(struct pinctrl_dev *pctldev, |
| unsigned int pin, unsigned long *configs, |
| unsigned int num_configs) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); |
| unsigned int param; |
| unsigned int i; |
| u32 offset = pin - bank->gpio_chip.base; |
| u32 mask = BIT(offset); |
| |
| dev_dbg(pctl->dev, "setting pin %d bank %d mask 0x%x\n", |
| pin, bank->gpio_chip.base, mask); |
| |
| for (i = 0; i < num_configs; i++) { |
| param = pinconf_to_config_param(configs[i]); |
| |
| switch (param) { |
| case PIN_CONFIG_BIAS_PULL_UP: |
| dev_dbg(pctl->dev, " pullup\n"); |
| regmap_write_bits(pctl->regmap, |
| (bank->id ? |
| PINMUX_810_PULLUP_CTRL1 : |
| PINMUX_810_PULLUP_CTRL0), |
| mask, mask); |
| break; |
| default: |
| dev_err(pctl->dev, "Property %u not supported\n", |
| param); |
| return -ENOTSUPP; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int oxnas_ox820_pinconf_set(struct pinctrl_dev *pctldev, |
| unsigned int pin, unsigned long *configs, |
| unsigned int num_configs) |
| { |
| struct oxnas_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
| struct oxnas_gpio_bank *bank = pctl_to_bank(pctl, pin); |
| unsigned int bank_offset = (bank->id ? PINMUX_820_BANK_OFFSET : 0); |
| unsigned int param; |
| unsigned int i; |
| u32 offset = pin - bank->gpio_chip.base; |
| u32 mask = BIT(offset); |
| |
| dev_dbg(pctl->dev, "setting pin %d bank %d mask 0x%x\n", |
| pin, bank->gpio_chip.base, mask); |
| |
| for (i = 0; i < num_configs; i++) { |
| param = pinconf_to_config_param(configs[i]); |
| |
| switch (param) { |
| case PIN_CONFIG_BIAS_PULL_UP: |
| dev_dbg(pctl->dev, " pullup\n"); |
| regmap_write_bits(pctl->regmap, |
| bank_offset + PINMUX_820_PULLUP_CTRL, |
| mask, mask); |
| break; |
| default: |
| dev_err(pctl->dev, "Property %u not supported\n", |
| param); |
| return -ENOTSUPP; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static const struct pinconf_ops oxnas_ox810se_pinconf_ops = { |
| .pin_config_get = oxnas_ox810se_pinconf_get, |
| .pin_config_set = oxnas_ox810se_pinconf_set, |
| .is_generic = true, |
| }; |
| |
| static const struct pinconf_ops oxnas_ox820_pinconf_ops = { |
| .pin_config_get = oxnas_ox820_pinconf_get, |
| .pin_config_set = oxnas_ox820_pinconf_set, |
| .is_generic = true, |
| }; |
| |
| static void oxnas_gpio_irq_ack(struct irq_data *data) |
| { |
| struct gpio_chip *chip = irq_data_get_irq_chip_data(data); |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| u32 mask = BIT(data->hwirq); |
| |
| writel(mask, bank->reg_base + IRQ_PENDING); |
| } |
| |
| static void oxnas_gpio_irq_mask(struct irq_data *data) |
| { |
| struct gpio_chip *chip = irq_data_get_irq_chip_data(data); |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| unsigned int type = irqd_get_trigger_type(data); |
| u32 mask = BIT(data->hwirq); |
| |
| if (type & IRQ_TYPE_EDGE_RISING) |
| writel(readl(bank->reg_base + RE_IRQ_ENABLE) & ~mask, |
| bank->reg_base + RE_IRQ_ENABLE); |
| |
| if (type & IRQ_TYPE_EDGE_FALLING) |
| writel(readl(bank->reg_base + FE_IRQ_ENABLE) & ~mask, |
| bank->reg_base + FE_IRQ_ENABLE); |
| } |
| |
| static void oxnas_gpio_irq_unmask(struct irq_data *data) |
| { |
| struct gpio_chip *chip = irq_data_get_irq_chip_data(data); |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(chip); |
| unsigned int type = irqd_get_trigger_type(data); |
| u32 mask = BIT(data->hwirq); |
| |
| if (type & IRQ_TYPE_EDGE_RISING) |
| writel(readl(bank->reg_base + RE_IRQ_ENABLE) | mask, |
| bank->reg_base + RE_IRQ_ENABLE); |
| |
| if (type & IRQ_TYPE_EDGE_FALLING) |
| writel(readl(bank->reg_base + FE_IRQ_ENABLE) | mask, |
| bank->reg_base + FE_IRQ_ENABLE); |
| } |
| |
| static unsigned int oxnas_gpio_irq_startup(struct irq_data *data) |
| { |
| struct gpio_chip *chip = irq_data_get_irq_chip_data(data); |
| |
| oxnas_gpio_direction_input(chip, data->hwirq); |
| oxnas_gpio_irq_unmask(data); |
| |
| return 0; |
| } |
| |
| static int oxnas_gpio_irq_set_type(struct irq_data *data, unsigned int type) |
| { |
| if ((type & (IRQ_TYPE_EDGE_RISING|IRQ_TYPE_EDGE_FALLING)) == 0) |
| return -EINVAL; |
| |
| irq_set_handler_locked(data, handle_edge_irq); |
| |
| return 0; |
| } |
| |
| static void oxnas_gpio_irq_handler(struct irq_desc *desc) |
| { |
| struct gpio_chip *gc = irq_desc_get_handler_data(desc); |
| struct oxnas_gpio_bank *bank = gpiochip_get_data(gc); |
| struct irq_chip *chip = irq_desc_get_chip(desc); |
| unsigned long stat; |
| unsigned int pin; |
| |
| chained_irq_enter(chip, desc); |
| |
| stat = readl(bank->reg_base + IRQ_PENDING); |
| |
| for_each_set_bit(pin, &stat, BITS_PER_LONG) |
| generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin)); |
| |
| chained_irq_exit(chip, desc); |
| } |
| |
| #define GPIO_BANK(_bank) \ |
| { \ |
| .gpio_chip = { \ |
| .label = "GPIO" #_bank, \ |
| .request = gpiochip_generic_request, \ |
| .free = gpiochip_generic_free, \ |
| .get_direction = oxnas_gpio_get_direction, \ |
| .direction_input = oxnas_gpio_direction_input, \ |
| .direction_output = oxnas_gpio_direction_output, \ |
| .get = oxnas_gpio_get, \ |
| .set = oxnas_gpio_set, \ |
| .ngpio = PINS_PER_BANK, \ |
| .base = GPIO_BANK_START(_bank), \ |
| .owner = THIS_MODULE, \ |
| .can_sleep = 0, \ |
| }, \ |
| .irq_chip = { \ |
| .name = "GPIO" #_bank, \ |
| .irq_startup = oxnas_gpio_irq_startup, \ |
| .irq_ack = oxnas_gpio_irq_ack, \ |
| .irq_mask = oxnas_gpio_irq_mask, \ |
| .irq_unmask = oxnas_gpio_irq_unmask, \ |
| .irq_set_type = oxnas_gpio_irq_set_type, \ |
| }, \ |
| } |
| |
| static struct oxnas_gpio_bank oxnas_gpio_banks[] = { |
| GPIO_BANK(0), |
| GPIO_BANK(1), |
| }; |
| |
| static struct oxnas_pinctrl ox810se_pinctrl = { |
| .functions = oxnas_ox810se_functions, |
| .nfunctions = ARRAY_SIZE(oxnas_ox810se_functions), |
| .groups = oxnas_ox810se_groups, |
| .ngroups = ARRAY_SIZE(oxnas_ox810se_groups), |
| .gpio_banks = oxnas_gpio_banks, |
| .nbanks = ARRAY_SIZE(oxnas_gpio_banks), |
| }; |
| |
| static struct pinctrl_desc oxnas_ox810se_pinctrl_desc = { |
| .name = "oxnas-pinctrl", |
| .pins = oxnas_ox810se_pins, |
| .npins = ARRAY_SIZE(oxnas_ox810se_pins), |
| .pctlops = &oxnas_pinctrl_ops, |
| .pmxops = &oxnas_ox810se_pinmux_ops, |
| .confops = &oxnas_ox810se_pinconf_ops, |
| .owner = THIS_MODULE, |
| }; |
| |
| static struct oxnas_pinctrl ox820_pinctrl = { |
| .functions = oxnas_ox820_functions, |
| .nfunctions = ARRAY_SIZE(oxnas_ox820_functions), |
| .groups = oxnas_ox820_groups, |
| .ngroups = ARRAY_SIZE(oxnas_ox820_groups), |
| .gpio_banks = oxnas_gpio_banks, |
| .nbanks = ARRAY_SIZE(oxnas_gpio_banks), |
| }; |
| |
| static struct pinctrl_desc oxnas_ox820_pinctrl_desc = { |
| .name = "oxnas-pinctrl", |
| .pins = oxnas_ox820_pins, |
| .npins = ARRAY_SIZE(oxnas_ox820_pins), |
| .pctlops = &oxnas_pinctrl_ops, |
| .pmxops = &oxnas_ox820_pinmux_ops, |
| .confops = &oxnas_ox820_pinconf_ops, |
| .owner = THIS_MODULE, |
| }; |
| |
| static struct oxnas_pinctrl_data oxnas_ox810se_pinctrl_data = { |
| .desc = &oxnas_ox810se_pinctrl_desc, |
| .pctl = &ox810se_pinctrl, |
| }; |
| |
| static struct oxnas_pinctrl_data oxnas_ox820_pinctrl_data = { |
| .desc = &oxnas_ox820_pinctrl_desc, |
| .pctl = &ox820_pinctrl, |
| }; |
| |
| static const struct of_device_id oxnas_pinctrl_of_match[] = { |
| { .compatible = "oxsemi,ox810se-pinctrl", |
| .data = &oxnas_ox810se_pinctrl_data |
| }, |
| { .compatible = "oxsemi,ox820-pinctrl", |
| .data = &oxnas_ox820_pinctrl_data, |
| }, |
| { }, |
| }; |
| |
| static int oxnas_pinctrl_probe(struct platform_device *pdev) |
| { |
| const struct of_device_id *id; |
| const struct oxnas_pinctrl_data *data; |
| struct oxnas_pinctrl *pctl; |
| |
| id = of_match_node(oxnas_pinctrl_of_match, pdev->dev.of_node); |
| if (!id) |
| return -ENODEV; |
| |
| data = id->data; |
| if (!data || !data->pctl || !data->desc) |
| return -EINVAL; |
| |
| pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); |
| if (!pctl) |
| return -ENOMEM; |
| pctl->dev = &pdev->dev; |
| dev_set_drvdata(&pdev->dev, pctl); |
| |
| pctl->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, |
| "oxsemi,sys-ctrl"); |
| if (IS_ERR(pctl->regmap)) { |
| dev_err(&pdev->dev, "failed to get sys ctrl regmap\n"); |
| return -ENODEV; |
| } |
| |
| pctl->functions = data->pctl->functions; |
| pctl->nfunctions = data->pctl->nfunctions; |
| pctl->groups = data->pctl->groups; |
| pctl->ngroups = data->pctl->ngroups; |
| pctl->gpio_banks = data->pctl->gpio_banks; |
| pctl->nbanks = data->pctl->nbanks; |
| |
| pctl->pctldev = pinctrl_register(data->desc, &pdev->dev, pctl); |
| if (IS_ERR(pctl->pctldev)) { |
| dev_err(&pdev->dev, "Failed to register pinctrl device\n"); |
| return PTR_ERR(pctl->pctldev); |
| } |
| |
| return 0; |
| } |
| |
| static int oxnas_gpio_probe(struct platform_device *pdev) |
| { |
| struct device_node *np = pdev->dev.of_node; |
| struct of_phandle_args pinspec; |
| struct oxnas_gpio_bank *bank; |
| unsigned int id, ngpios; |
| int irq, ret; |
| struct resource *res; |
| |
| if (of_parse_phandle_with_fixed_args(np, "gpio-ranges", |
| 3, 0, &pinspec)) { |
| dev_err(&pdev->dev, "gpio-ranges property not found\n"); |
| return -EINVAL; |
| } |
| |
| id = pinspec.args[1] / PINS_PER_BANK; |
| ngpios = pinspec.args[2]; |
| |
| if (id >= ARRAY_SIZE(oxnas_gpio_banks)) { |
| dev_err(&pdev->dev, "invalid gpio-ranges base arg\n"); |
| return -EINVAL; |
| } |
| |
| if (ngpios > PINS_PER_BANK) { |
| dev_err(&pdev->dev, "invalid gpio-ranges count arg\n"); |
| return -EINVAL; |
| } |
| |
| bank = &oxnas_gpio_banks[id]; |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| bank->reg_base = devm_ioremap_resource(&pdev->dev, res); |
| if (IS_ERR(bank->reg_base)) |
| return PTR_ERR(bank->reg_base); |
| |
| irq = platform_get_irq(pdev, 0); |
| if (irq < 0) |
| return irq; |
| |
| bank->id = id; |
| bank->gpio_chip.parent = &pdev->dev; |
| bank->gpio_chip.of_node = np; |
| bank->gpio_chip.ngpio = ngpios; |
| ret = gpiochip_add_data(&bank->gpio_chip, bank); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "Failed to add GPIO chip %u: %d\n", |
| id, ret); |
| return ret; |
| } |
| |
| ret = gpiochip_irqchip_add(&bank->gpio_chip, &bank->irq_chip, |
| 0, handle_level_irq, IRQ_TYPE_NONE); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "Failed to add IRQ chip %u: %d\n", |
| id, ret); |
| gpiochip_remove(&bank->gpio_chip); |
| return ret; |
| } |
| |
| gpiochip_set_chained_irqchip(&bank->gpio_chip, &bank->irq_chip, |
| irq, oxnas_gpio_irq_handler); |
| |
| return 0; |
| } |
| |
| static struct platform_driver oxnas_pinctrl_driver = { |
| .driver = { |
| .name = "oxnas-pinctrl", |
| .of_match_table = oxnas_pinctrl_of_match, |
| .suppress_bind_attrs = true, |
| }, |
| .probe = oxnas_pinctrl_probe, |
| }; |
| |
| static const struct of_device_id oxnas_gpio_of_match[] = { |
| { .compatible = "oxsemi,ox810se-gpio", }, |
| { .compatible = "oxsemi,ox820-gpio", }, |
| { }, |
| }; |
| |
| static struct platform_driver oxnas_gpio_driver = { |
| .driver = { |
| .name = "oxnas-gpio", |
| .of_match_table = oxnas_gpio_of_match, |
| .suppress_bind_attrs = true, |
| }, |
| .probe = oxnas_gpio_probe, |
| }; |
| |
| static int __init oxnas_gpio_register(void) |
| { |
| return platform_driver_register(&oxnas_gpio_driver); |
| } |
| arch_initcall(oxnas_gpio_register); |
| |
| static int __init oxnas_pinctrl_register(void) |
| { |
| return platform_driver_register(&oxnas_pinctrl_driver); |
| } |
| arch_initcall(oxnas_pinctrl_register); |
