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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | /* * Allwinner A23 SoCs special pins pinctrl driver. * * Copyright (C) 2014 Chen-Yu Tsai * Chen-Yu Tsai <wens@csie.org> * * Copyright (C) 2014 Boris Brezillon * Boris Brezillon <boris.brezillon@free-electrons.com> * * Copyright (C) 2014 Maxime Ripard * Maxime Ripard <maxime.ripard@free-electrons.com> * * 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 <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 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_i2c"), /* 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_i2c"), /* 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_exclusive(&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 const struct of_device_id sun8i_a23_r_pinctrl_match[] = { { .compatible = "allwinner,sun8i-a23-r-pinctrl", }, {} }; static struct platform_driver sun8i_a23_r_pinctrl_driver = { .probe = sun8i_a23_r_pinctrl_probe, .driver = { .name = "sun8i-a23-r-pinctrl", .of_match_table = sun8i_a23_r_pinctrl_match, }, }; builtin_platform_driver(sun8i_a23_r_pinctrl_driver); |