1 /* 2 * Marvell Armada ap806 pinctrl driver based on mvebu pinctrl core 3 * 4 * Copyright (C) 2017 Marvell 5 * 6 * Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 7 * Hanna Hawa <hannah@marvell.com> 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 */ 14 15 #include <linux/err.h> 16 #include <linux/init.h> 17 #include <linux/io.h> 18 #include <linux/platform_device.h> 19 #include <linux/of.h> 20 #include <linux/of_device.h> 21 #include <linux/pinctrl/pinctrl.h> 22 23 #include "pinctrl-mvebu.h" 24 25 static struct mvebu_mpp_mode armada_ap806_mpp_modes[] = { 26 MPP_MODE(0, 27 MPP_FUNCTION(0, "gpio", NULL), 28 MPP_FUNCTION(1, "sdio", "clk"), 29 MPP_FUNCTION(3, "spi0", "clk")), 30 MPP_MODE(1, 31 MPP_FUNCTION(0, "gpio", NULL), 32 MPP_FUNCTION(1, "sdio", "cmd"), 33 MPP_FUNCTION(3, "spi0", "miso")), 34 MPP_MODE(2, 35 MPP_FUNCTION(0, "gpio", NULL), 36 MPP_FUNCTION(1, "sdio", "d0"), 37 MPP_FUNCTION(3, "spi0", "mosi")), 38 MPP_MODE(3, 39 MPP_FUNCTION(0, "gpio", NULL), 40 MPP_FUNCTION(1, "sdio", "d1"), 41 MPP_FUNCTION(3, "spi0", "cs0n")), 42 MPP_MODE(4, 43 MPP_FUNCTION(0, "gpio", NULL), 44 MPP_FUNCTION(1, "sdio", "d2"), 45 MPP_FUNCTION(3, "i2c0", "sda")), 46 MPP_MODE(5, 47 MPP_FUNCTION(0, "gpio", NULL), 48 MPP_FUNCTION(1, "sdio", "d3"), 49 MPP_FUNCTION(3, "i2c0", "sdk")), 50 MPP_MODE(6, 51 MPP_FUNCTION(0, "gpio", NULL), 52 MPP_FUNCTION(1, "sdio", "ds")), 53 MPP_MODE(7, 54 MPP_FUNCTION(0, "gpio", NULL), 55 MPP_FUNCTION(1, "sdio", "d4"), 56 MPP_FUNCTION(3, "uart1", "rxd")), 57 MPP_MODE(8, 58 MPP_FUNCTION(0, "gpio", NULL), 59 MPP_FUNCTION(1, "sdio", "d5"), 60 MPP_FUNCTION(3, "uart1", "txd")), 61 MPP_MODE(9, 62 MPP_FUNCTION(0, "gpio", NULL), 63 MPP_FUNCTION(1, "sdio", "d6"), 64 MPP_FUNCTION(3, "spi0", "cs1n")), 65 MPP_MODE(10, 66 MPP_FUNCTION(0, "gpio", NULL), 67 MPP_FUNCTION(1, "sdio", "d7")), 68 MPP_MODE(11, 69 MPP_FUNCTION(0, "gpio", NULL), 70 MPP_FUNCTION(3, "uart0", "txd")), 71 MPP_MODE(12, 72 MPP_FUNCTION(0, "gpio", NULL), 73 MPP_FUNCTION(1, "sdio", "pw_off"), 74 MPP_FUNCTION(2, "sdio", "hw_rst")), 75 MPP_MODE(13, 76 MPP_FUNCTION(0, "gpio", NULL)), 77 MPP_MODE(14, 78 MPP_FUNCTION(0, "gpio", NULL)), 79 MPP_MODE(15, 80 MPP_FUNCTION(0, "gpio", NULL)), 81 MPP_MODE(16, 82 MPP_FUNCTION(0, "gpio", NULL)), 83 MPP_MODE(17, 84 MPP_FUNCTION(0, "gpio", NULL)), 85 MPP_MODE(18, 86 MPP_FUNCTION(0, "gpio", NULL)), 87 MPP_MODE(19, 88 MPP_FUNCTION(0, "gpio", NULL), 89 MPP_FUNCTION(3, "uart0", "rxd"), 90 MPP_FUNCTION(4, "sdio", "pw_off")), 91 }; 92 93 static struct mvebu_pinctrl_soc_info armada_ap806_pinctrl_info; 94 95 static const struct of_device_id armada_ap806_pinctrl_of_match[] = { 96 { 97 .compatible = "marvell,ap806-pinctrl", 98 }, 99 { }, 100 }; 101 102 static const struct mvebu_mpp_ctrl armada_ap806_mpp_controls[] = { 103 MPP_FUNC_CTRL(0, 19, NULL, mvebu_regmap_mpp_ctrl), 104 }; 105 106 static struct pinctrl_gpio_range armada_ap806_mpp_gpio_ranges[] = { 107 MPP_GPIO_RANGE(0, 0, 0, 20), 108 }; 109 110 static int armada_ap806_pinctrl_probe(struct platform_device *pdev) 111 { 112 struct mvebu_pinctrl_soc_info *soc = &armada_ap806_pinctrl_info; 113 const struct of_device_id *match = 114 of_match_device(armada_ap806_pinctrl_of_match, &pdev->dev); 115 116 if (!match || !pdev->dev.parent) 117 return -ENODEV; 118 119 soc->variant = 0; /* no variants for Armada AP806 */ 120 soc->controls = armada_ap806_mpp_controls; 121 soc->ncontrols = ARRAY_SIZE(armada_ap806_mpp_controls); 122 soc->gpioranges = armada_ap806_mpp_gpio_ranges; 123 soc->ngpioranges = ARRAY_SIZE(armada_ap806_mpp_gpio_ranges); 124 soc->modes = armada_ap806_mpp_modes; 125 soc->nmodes = armada_ap806_mpp_controls[0].npins; 126 127 pdev->dev.platform_data = soc; 128 129 return mvebu_pinctrl_simple_regmap_probe(pdev, pdev->dev.parent, 0); 130 } 131 132 static struct platform_driver armada_ap806_pinctrl_driver = { 133 .driver = { 134 .name = "armada-ap806-pinctrl", 135 .of_match_table = of_match_ptr(armada_ap806_pinctrl_of_match), 136 }, 137 .probe = armada_ap806_pinctrl_probe, 138 }; 139 140 builtin_platform_driver(armada_ap806_pinctrl_driver); 141