OpenWrt – Blame information for rev 1
?pathlinks?
Rev | Author | Line No. | Line |
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1 | office | 1 | From eea6b96701d734095e2f823f3a82d9b063f553ae Mon Sep 17 00:00:00 2001 |
2 | From: Jonas Gorski <jonas.gorski@gmail.com> |
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3 | Date: Fri, 24 Jun 2016 22:17:20 +0200 |
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4 | Subject: [PATCH 09/16] pinctrl: add a pincontrol driver for BCM6362 |
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5 | |||
6 | Add a pincotrol driver for BCM6362. BCM6362 allows muxing individual |
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7 | GPIO pins to the LED controller, to be available by the integrated |
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8 | wifi, or other functions. It also supports overlay groups, of which |
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9 | only NAND is documented. |
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10 | |||
11 | Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> |
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12 | --- |
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13 | drivers/pinctrl/bcm63xx/Kconfig | 7 + |
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14 | drivers/pinctrl/bcm63xx/Makefile | 1 + |
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15 | drivers/pinctrl/bcm63xx/pinctrl-bcm6362.c | 692 ++++++++++++++++++++++++++++++ |
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16 | 3 files changed, 700 insertions(+) |
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17 | create mode 100644 drivers/pinctrl/bcm63xx/pinctrl-bcm6362.c |
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18 | |||
19 | --- a/drivers/pinctrl/bcm63xx/Kconfig |
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20 | +++ b/drivers/pinctrl/bcm63xx/Kconfig |
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21 | @@ -23,3 +23,10 @@ config PINCTRL_BCM6358 |
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22 | select PINCTRL_BCM63XX |
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23 | select GENERIC_PINCONF |
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24 | select MFD_SYSCON |
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25 | + |
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26 | +config PINCTRL_BCM6362 |
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27 | + bool "BCM6362 pincontrol driver" if COMPILE_TEST |
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28 | + select PINMUX |
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29 | + select PINCONF |
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30 | + select PINCTRL_BCM63XX |
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31 | + select GENERIC_PINCONF |
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32 | --- a/drivers/pinctrl/bcm63xx/Makefile |
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33 | +++ b/drivers/pinctrl/bcm63xx/Makefile |
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34 | @@ -2,3 +2,4 @@ obj-$(CONFIG_PINCTRL_BCM63XX) += pinctrl |
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35 | obj-$(CONFIG_PINCTRL_BCM6328) += pinctrl-bcm6328.o |
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36 | obj-$(CONFIG_PINCTRL_BCM6348) += pinctrl-bcm6348.o |
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37 | obj-$(CONFIG_PINCTRL_BCM6358) += pinctrl-bcm6358.o |
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38 | +obj-$(CONFIG_PINCTRL_BCM6362) += pinctrl-bcm6362.o |
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39 | --- /dev/null |
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40 | +++ b/drivers/pinctrl/bcm63xx/pinctrl-bcm6362.c |
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41 | @@ -0,0 +1,692 @@ |
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42 | +/* |
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43 | + * This file is subject to the terms and conditions of the GNU General Public |
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44 | + * License. See the file "COPYING" in the main directory of this archive |
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45 | + * for more details. |
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46 | + * |
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47 | + * Copyright (C) 2016 Jonas Gorski <jonas.gorski@gmail.com> |
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48 | + */ |
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49 | + |
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50 | +#include <linux/kernel.h> |
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51 | +#include <linux/spinlock.h> |
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52 | +#include <linux/bitops.h> |
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53 | +#include <linux/gpio.h> |
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54 | +#include <linux/of.h> |
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55 | +#include <linux/of_gpio.h> |
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56 | +#include <linux/slab.h> |
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57 | +#include <linux/platform_device.h> |
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58 | + |
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59 | +#include <linux/pinctrl/pinconf.h> |
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60 | +#include <linux/pinctrl/pinconf-generic.h> |
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61 | +#include <linux/pinctrl/pinmux.h> |
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62 | +#include <linux/pinctrl/machine.h> |
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63 | + |
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64 | +#include "../core.h" |
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65 | +#include "../pinctrl-utils.h" |
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66 | + |
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67 | +#include "pinctrl-bcm63xx.h" |
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68 | + |
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69 | +#define BCM6362_NGPIO 48 |
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70 | + |
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71 | +/* GPIO_BASEMODE register */ |
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72 | +#define BASEMODE_NAND BIT(2) |
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73 | + |
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74 | +enum bcm6362_pinctrl_reg { |
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75 | + BCM6362_LEDCTRL, |
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76 | + BCM6362_MODE, |
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77 | + BCM6362_CTRL, |
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78 | + BCM6362_BASEMODE, |
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79 | +}; |
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80 | + |
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81 | +struct bcm6362_pingroup { |
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82 | + const char *name; |
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83 | + const unsigned * const pins; |
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84 | + const unsigned num_pins; |
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85 | +}; |
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86 | + |
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87 | +struct bcm6362_function { |
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88 | + const char *name; |
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89 | + const char * const *groups; |
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90 | + const unsigned num_groups; |
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91 | + |
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92 | + enum bcm6362_pinctrl_reg reg; |
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93 | + u32 basemode_mask; |
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94 | +}; |
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95 | + |
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96 | +struct bcm6362_pinctrl { |
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97 | + struct pinctrl_dev *pctldev; |
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98 | + struct pinctrl_desc desc; |
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99 | + |
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100 | + void __iomem *led; |
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101 | + void __iomem *mode; |
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102 | + void __iomem *ctrl; |
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103 | + void __iomem *basemode; |
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104 | + |
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105 | + /* register access lock */ |
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106 | + spinlock_t lock; |
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107 | + |
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108 | + struct gpio_chip gpio[2]; |
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109 | +}; |
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110 | + |
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111 | +#define BCM6362_PIN(a, b, mask) \ |
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112 | + { \ |
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113 | + .number = a, \ |
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114 | + .name = b, \ |
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115 | + .drv_data = (void *)(mask), \ |
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116 | + } |
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117 | + |
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118 | +static const struct pinctrl_pin_desc bcm6362_pins[] = { |
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119 | + PINCTRL_PIN(0, "gpio0"), |
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120 | + PINCTRL_PIN(1, "gpio1"), |
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121 | + PINCTRL_PIN(2, "gpio2"), |
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122 | + PINCTRL_PIN(3, "gpio3"), |
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123 | + PINCTRL_PIN(4, "gpio4"), |
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124 | + PINCTRL_PIN(5, "gpio5"), |
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125 | + PINCTRL_PIN(6, "gpio6"), |
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126 | + PINCTRL_PIN(7, "gpio7"), |
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127 | + BCM6362_PIN(8, "gpio8", BASEMODE_NAND), |
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128 | + PINCTRL_PIN(9, "gpio9"), |
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129 | + PINCTRL_PIN(10, "gpio10"), |
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130 | + PINCTRL_PIN(11, "gpio11"), |
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131 | + BCM6362_PIN(12, "gpio12", BASEMODE_NAND), |
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132 | + BCM6362_PIN(13, "gpio13", BASEMODE_NAND), |
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133 | + BCM6362_PIN(14, "gpio14", BASEMODE_NAND), |
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134 | + BCM6362_PIN(15, "gpio15", BASEMODE_NAND), |
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135 | + BCM6362_PIN(16, "gpio16", BASEMODE_NAND), |
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136 | + BCM6362_PIN(17, "gpio17", BASEMODE_NAND), |
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137 | + BCM6362_PIN(18, "gpio18", BASEMODE_NAND), |
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138 | + BCM6362_PIN(19, "gpio19", BASEMODE_NAND), |
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139 | + BCM6362_PIN(20, "gpio20", BASEMODE_NAND), |
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140 | + BCM6362_PIN(21, "gpio21", BASEMODE_NAND), |
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141 | + BCM6362_PIN(22, "gpio22", BASEMODE_NAND), |
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142 | + BCM6362_PIN(23, "gpio23", BASEMODE_NAND), |
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143 | + PINCTRL_PIN(24, "gpio24"), |
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144 | + PINCTRL_PIN(25, "gpio25"), |
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145 | + PINCTRL_PIN(26, "gpio26"), |
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146 | + BCM6362_PIN(27, "gpio27", BASEMODE_NAND), |
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147 | + PINCTRL_PIN(28, "gpio28"), |
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148 | + PINCTRL_PIN(29, "gpio29"), |
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149 | + PINCTRL_PIN(30, "gpio30"), |
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150 | + PINCTRL_PIN(31, "gpio31"), |
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151 | + PINCTRL_PIN(32, "gpio32"), |
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152 | + PINCTRL_PIN(33, "gpio33"), |
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153 | + PINCTRL_PIN(34, "gpio34"), |
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154 | + PINCTRL_PIN(35, "gpio35"), |
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155 | + PINCTRL_PIN(36, "gpio36"), |
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156 | + PINCTRL_PIN(37, "gpio37"), |
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157 | + PINCTRL_PIN(38, "gpio38"), |
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158 | + PINCTRL_PIN(39, "gpio39"), |
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159 | + PINCTRL_PIN(40, "gpio40"), |
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160 | + PINCTRL_PIN(41, "gpio41"), |
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161 | + PINCTRL_PIN(42, "gpio42"), |
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162 | + PINCTRL_PIN(43, "gpio43"), |
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163 | + PINCTRL_PIN(44, "gpio44"), |
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164 | + PINCTRL_PIN(45, "gpio45"), |
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165 | + PINCTRL_PIN(46, "gpio46"), |
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166 | + PINCTRL_PIN(47, "gpio47"), |
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167 | +}; |
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168 | + |
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169 | +static unsigned gpio0_pins[] = { 0 }; |
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170 | +static unsigned gpio1_pins[] = { 1 }; |
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171 | +static unsigned gpio2_pins[] = { 2 }; |
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172 | +static unsigned gpio3_pins[] = { 3 }; |
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173 | +static unsigned gpio4_pins[] = { 4 }; |
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174 | +static unsigned gpio5_pins[] = { 5 }; |
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175 | +static unsigned gpio6_pins[] = { 6 }; |
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176 | +static unsigned gpio7_pins[] = { 7 }; |
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177 | +static unsigned gpio8_pins[] = { 8 }; |
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178 | +static unsigned gpio9_pins[] = { 9 }; |
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179 | +static unsigned gpio10_pins[] = { 10 }; |
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180 | +static unsigned gpio11_pins[] = { 11 }; |
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181 | +static unsigned gpio12_pins[] = { 12 }; |
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182 | +static unsigned gpio13_pins[] = { 13 }; |
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183 | +static unsigned gpio14_pins[] = { 14 }; |
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184 | +static unsigned gpio15_pins[] = { 15 }; |
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185 | +static unsigned gpio16_pins[] = { 16 }; |
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186 | +static unsigned gpio17_pins[] = { 17 }; |
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187 | +static unsigned gpio18_pins[] = { 18 }; |
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188 | +static unsigned gpio19_pins[] = { 19 }; |
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189 | +static unsigned gpio20_pins[] = { 20 }; |
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190 | +static unsigned gpio21_pins[] = { 21 }; |
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191 | +static unsigned gpio22_pins[] = { 22 }; |
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192 | +static unsigned gpio23_pins[] = { 23 }; |
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193 | +static unsigned gpio24_pins[] = { 24 }; |
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194 | +static unsigned gpio25_pins[] = { 25 }; |
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195 | +static unsigned gpio26_pins[] = { 26 }; |
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196 | +static unsigned gpio27_pins[] = { 27 }; |
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197 | +static unsigned gpio28_pins[] = { 28 }; |
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198 | +static unsigned gpio29_pins[] = { 29 }; |
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199 | +static unsigned gpio30_pins[] = { 30 }; |
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200 | +static unsigned gpio31_pins[] = { 31 }; |
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201 | +static unsigned gpio32_pins[] = { 32 }; |
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202 | +static unsigned gpio33_pins[] = { 33 }; |
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203 | +static unsigned gpio34_pins[] = { 34 }; |
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204 | +static unsigned gpio35_pins[] = { 35 }; |
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205 | +static unsigned gpio36_pins[] = { 36 }; |
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206 | +static unsigned gpio37_pins[] = { 37 }; |
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207 | +static unsigned gpio38_pins[] = { 38 }; |
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208 | +static unsigned gpio39_pins[] = { 39 }; |
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209 | +static unsigned gpio40_pins[] = { 40 }; |
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210 | +static unsigned gpio41_pins[] = { 41 }; |
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211 | +static unsigned gpio42_pins[] = { 42 }; |
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212 | +static unsigned gpio43_pins[] = { 43 }; |
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213 | +static unsigned gpio44_pins[] = { 44 }; |
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214 | +static unsigned gpio45_pins[] = { 45 }; |
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215 | +static unsigned gpio46_pins[] = { 46 }; |
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216 | +static unsigned gpio47_pins[] = { 47 }; |
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217 | + |
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218 | +static unsigned nand_grp_pins[] = { |
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219 | + 8, 12, 13, 14, 15, 16, 17, |
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220 | + 18, 19, 20, 21, 22, 23, 27, |
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221 | +}; |
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222 | + |
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223 | +#define BCM6362_GROUP(n) \ |
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224 | + { \ |
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225 | + .name = #n, \ |
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226 | + .pins = n##_pins, \ |
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227 | + .num_pins = ARRAY_SIZE(n##_pins), \ |
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228 | + } |
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229 | + |
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230 | +static struct bcm6362_pingroup bcm6362_groups[] = { |
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231 | + BCM6362_GROUP(gpio0), |
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232 | + BCM6362_GROUP(gpio1), |
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233 | + BCM6362_GROUP(gpio2), |
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234 | + BCM6362_GROUP(gpio3), |
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235 | + BCM6362_GROUP(gpio4), |
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236 | + BCM6362_GROUP(gpio5), |
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237 | + BCM6362_GROUP(gpio6), |
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238 | + BCM6362_GROUP(gpio7), |
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239 | + BCM6362_GROUP(gpio8), |
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240 | + BCM6362_GROUP(gpio9), |
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241 | + BCM6362_GROUP(gpio10), |
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242 | + BCM6362_GROUP(gpio11), |
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243 | + BCM6362_GROUP(gpio12), |
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244 | + BCM6362_GROUP(gpio13), |
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245 | + BCM6362_GROUP(gpio14), |
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246 | + BCM6362_GROUP(gpio15), |
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247 | + BCM6362_GROUP(gpio16), |
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248 | + BCM6362_GROUP(gpio17), |
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249 | + BCM6362_GROUP(gpio18), |
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250 | + BCM6362_GROUP(gpio19), |
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251 | + BCM6362_GROUP(gpio20), |
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252 | + BCM6362_GROUP(gpio21), |
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253 | + BCM6362_GROUP(gpio22), |
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254 | + BCM6362_GROUP(gpio23), |
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255 | + BCM6362_GROUP(gpio24), |
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256 | + BCM6362_GROUP(gpio25), |
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257 | + BCM6362_GROUP(gpio26), |
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258 | + BCM6362_GROUP(gpio27), |
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259 | + BCM6362_GROUP(gpio28), |
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260 | + BCM6362_GROUP(gpio29), |
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261 | + BCM6362_GROUP(gpio30), |
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262 | + BCM6362_GROUP(gpio31), |
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263 | + BCM6362_GROUP(gpio32), |
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264 | + BCM6362_GROUP(gpio33), |
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265 | + BCM6362_GROUP(gpio34), |
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266 | + BCM6362_GROUP(gpio35), |
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267 | + BCM6362_GROUP(gpio36), |
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268 | + BCM6362_GROUP(gpio37), |
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269 | + BCM6362_GROUP(gpio38), |
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270 | + BCM6362_GROUP(gpio39), |
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271 | + BCM6362_GROUP(gpio40), |
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272 | + BCM6362_GROUP(gpio41), |
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273 | + BCM6362_GROUP(gpio42), |
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274 | + BCM6362_GROUP(gpio43), |
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275 | + BCM6362_GROUP(gpio44), |
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276 | + BCM6362_GROUP(gpio45), |
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277 | + BCM6362_GROUP(gpio46), |
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278 | + BCM6362_GROUP(gpio47), |
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279 | + BCM6362_GROUP(nand_grp), |
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280 | +}; |
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281 | + |
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282 | +static const char * const led_groups[] = { |
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283 | + "gpio0", |
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284 | + "gpio1", |
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285 | + "gpio2", |
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286 | + "gpio3", |
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287 | + "gpio4", |
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288 | + "gpio5", |
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289 | + "gpio6", |
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290 | + "gpio7", |
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291 | + "gpio8", |
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292 | + "gpio9", |
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293 | + "gpio10", |
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294 | + "gpio11", |
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295 | + "gpio12", |
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296 | + "gpio13", |
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297 | + "gpio14", |
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298 | + "gpio15", |
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299 | + "gpio16", |
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300 | + "gpio17", |
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301 | + "gpio18", |
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302 | + "gpio19", |
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303 | + "gpio20", |
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304 | + "gpio21", |
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305 | + "gpio22", |
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306 | + "gpio23", |
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307 | +}; |
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308 | + |
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309 | +static const char * const usb_device_led_groups[] = { |
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310 | + "gpio0", |
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311 | +}; |
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312 | + |
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313 | +static const char * const sys_irq_groups[] = { |
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314 | + "gpio1", |
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315 | +}; |
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316 | + |
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317 | +static const char * const serial_led_clk_groups[] = { |
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318 | + "gpio2", |
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319 | +}; |
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320 | + |
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321 | +static const char * const serial_led_data_groups[] = { |
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322 | + "gpio3", |
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323 | +}; |
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324 | + |
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325 | +static const char * const robosw_led_data_groups[] = { |
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326 | + "gpio4", |
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327 | +}; |
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328 | + |
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329 | +static const char * const robosw_led_clk_groups[] = { |
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330 | + "gpio5", |
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331 | +}; |
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332 | + |
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333 | +static const char * const robosw_led0_groups[] = { |
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334 | + "gpio6", |
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335 | +}; |
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336 | + |
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337 | +static const char * const robosw_led1_groups[] = { |
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338 | + "gpio7", |
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339 | +}; |
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340 | + |
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341 | +static const char * const inet_led_groups[] = { |
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342 | + "gpio8", |
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343 | +}; |
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344 | + |
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345 | +static const char * const spi_cs2_groups[] = { |
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346 | + "gpio9", |
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347 | +}; |
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348 | + |
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349 | +static const char * const spi_cs3_groups[] = { |
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350 | + "gpio10", |
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351 | +}; |
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352 | + |
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353 | +static const char * const ntr_pulse_groups[] = { |
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354 | + "gpio11", |
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355 | +}; |
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356 | + |
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357 | +static const char * const uart1_scts_groups[] = { |
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358 | + "gpio12", |
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359 | +}; |
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360 | + |
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361 | +static const char * const uart1_srts_groups[] = { |
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362 | + "gpio13", |
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363 | +}; |
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364 | + |
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365 | +static const char * const uart1_sdin_groups[] = { |
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366 | + "gpio14", |
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367 | +}; |
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368 | + |
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369 | +static const char * const uart1_sdout_groups[] = { |
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370 | + "gpio15", |
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371 | +}; |
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372 | + |
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373 | +static const char * const adsl_spi_miso_groups[] = { |
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374 | + "gpio16", |
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375 | +}; |
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376 | + |
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377 | +static const char * const adsl_spi_mosi_groups[] = { |
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378 | + "gpio17", |
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379 | +}; |
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380 | + |
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381 | +static const char * const adsl_spi_clk_groups[] = { |
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382 | + "gpio18", |
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383 | +}; |
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384 | + |
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385 | +static const char * const adsl_spi_cs_groups[] = { |
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386 | + "gpio19", |
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387 | +}; |
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388 | + |
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389 | +static const char * const ephy0_led_groups[] = { |
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390 | + "gpio20", |
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391 | +}; |
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392 | + |
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393 | +static const char * const ephy1_led_groups[] = { |
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394 | + "gpio21", |
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395 | +}; |
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396 | + |
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397 | +static const char * const ephy2_led_groups[] = { |
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398 | + "gpio22", |
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399 | +}; |
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400 | + |
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401 | +static const char * const ephy3_led_groups[] = { |
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402 | + "gpio23", |
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403 | +}; |
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404 | + |
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405 | +static const char * const ext_irq0_groups[] = { |
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406 | + "gpio24", |
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407 | +}; |
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408 | + |
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409 | +static const char * const ext_irq1_groups[] = { |
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410 | + "gpio25", |
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411 | +}; |
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412 | + |
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413 | +static const char * const ext_irq2_groups[] = { |
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414 | + "gpio26", |
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415 | +}; |
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416 | + |
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417 | +static const char * const ext_irq3_groups[] = { |
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418 | + "gpio27", |
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419 | +}; |
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420 | + |
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421 | +static const char * const wifi_groups[] = { |
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422 | + "gpio32", |
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423 | + "gpio33", |
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424 | + "gpio34", |
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425 | + "gpio35", |
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426 | + "gpio36", |
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427 | + "gpio37", |
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428 | + "gpio38", |
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429 | + "gpio39", |
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430 | + "gpio40", |
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431 | + "gpio41", |
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432 | + "gpio42", |
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433 | + "gpio43", |
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434 | + "gpio44", |
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435 | + "gpio45", |
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436 | + "gpio46", |
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437 | + "gpio47", |
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438 | +}; |
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439 | + |
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440 | +static const char * const nand_groups[] = { |
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441 | + "nand_grp", |
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442 | +}; |
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443 | + |
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444 | +#define BCM6362_LED_FUN(n) \ |
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445 | + { \ |
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446 | + .name = #n, \ |
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447 | + .groups = n##_groups, \ |
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448 | + .num_groups = ARRAY_SIZE(n##_groups), \ |
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449 | + .reg = BCM6362_LEDCTRL, \ |
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450 | + } |
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451 | + |
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452 | +#define BCM6362_MODE_FUN(n) \ |
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453 | + { \ |
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454 | + .name = #n, \ |
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455 | + .groups = n##_groups, \ |
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456 | + .num_groups = ARRAY_SIZE(n##_groups), \ |
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457 | + .reg = BCM6362_MODE, \ |
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458 | + } |
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459 | + |
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460 | +#define BCM6362_CTRL_FUN(n) \ |
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461 | + { \ |
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462 | + .name = #n, \ |
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463 | + .groups = n##_groups, \ |
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464 | + .num_groups = ARRAY_SIZE(n##_groups), \ |
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465 | + .reg = BCM6362_CTRL, \ |
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466 | + } |
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467 | + |
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468 | +#define BCM6362_BASEMODE_FUN(n, mask) \ |
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469 | + { \ |
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470 | + .name = #n, \ |
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471 | + .groups = n##_groups, \ |
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472 | + .num_groups = ARRAY_SIZE(n##_groups), \ |
||
473 | + .reg = BCM6362_BASEMODE, \ |
||
474 | + .basemode_mask = (mask), \ |
||
475 | + } |
||
476 | + |
||
477 | +static const struct bcm6362_function bcm6362_funcs[] = { |
||
478 | + BCM6362_LED_FUN(led), |
||
479 | + BCM6362_MODE_FUN(usb_device_led), |
||
480 | + BCM6362_MODE_FUN(sys_irq), |
||
481 | + BCM6362_MODE_FUN(serial_led_clk), |
||
482 | + BCM6362_MODE_FUN(serial_led_data), |
||
483 | + BCM6362_MODE_FUN(robosw_led_data), |
||
484 | + BCM6362_MODE_FUN(robosw_led_clk), |
||
485 | + BCM6362_MODE_FUN(robosw_led0), |
||
486 | + BCM6362_MODE_FUN(robosw_led1), |
||
487 | + BCM6362_MODE_FUN(inet_led), |
||
488 | + BCM6362_MODE_FUN(spi_cs2), |
||
489 | + BCM6362_MODE_FUN(spi_cs3), |
||
490 | + BCM6362_MODE_FUN(ntr_pulse), |
||
491 | + BCM6362_MODE_FUN(uart1_scts), |
||
492 | + BCM6362_MODE_FUN(uart1_srts), |
||
493 | + BCM6362_MODE_FUN(uart1_sdin), |
||
494 | + BCM6362_MODE_FUN(uart1_sdout), |
||
495 | + BCM6362_MODE_FUN(adsl_spi_miso), |
||
496 | + BCM6362_MODE_FUN(adsl_spi_mosi), |
||
497 | + BCM6362_MODE_FUN(adsl_spi_clk), |
||
498 | + BCM6362_MODE_FUN(adsl_spi_cs), |
||
499 | + BCM6362_MODE_FUN(ephy0_led), |
||
500 | + BCM6362_MODE_FUN(ephy1_led), |
||
501 | + BCM6362_MODE_FUN(ephy2_led), |
||
502 | + BCM6362_MODE_FUN(ephy3_led), |
||
503 | + BCM6362_MODE_FUN(ext_irq0), |
||
504 | + BCM6362_MODE_FUN(ext_irq1), |
||
505 | + BCM6362_MODE_FUN(ext_irq2), |
||
506 | + BCM6362_MODE_FUN(ext_irq3), |
||
507 | + BCM6362_CTRL_FUN(wifi), |
||
508 | + BCM6362_BASEMODE_FUN(nand, BASEMODE_NAND), |
||
509 | +}; |
||
510 | + |
||
511 | +static int bcm6362_pinctrl_get_group_count(struct pinctrl_dev *pctldev) |
||
512 | +{ |
||
513 | + return ARRAY_SIZE(bcm6362_groups); |
||
514 | +} |
||
515 | + |
||
516 | +static const char *bcm6362_pinctrl_get_group_name(struct pinctrl_dev *pctldev, |
||
517 | + unsigned group) |
||
518 | +{ |
||
519 | + return bcm6362_groups[group].name; |
||
520 | +} |
||
521 | + |
||
522 | +static int bcm6362_pinctrl_get_group_pins(struct pinctrl_dev *pctldev, |
||
523 | + unsigned group, const unsigned **pins, |
||
524 | + unsigned *num_pins) |
||
525 | +{ |
||
526 | + *pins = bcm6362_groups[group].pins; |
||
527 | + *num_pins = bcm6362_groups[group].num_pins; |
||
528 | + |
||
529 | + return 0; |
||
530 | +} |
||
531 | + |
||
532 | +static int bcm6362_pinctrl_get_func_count(struct pinctrl_dev *pctldev) |
||
533 | +{ |
||
534 | + return ARRAY_SIZE(bcm6362_funcs); |
||
535 | +} |
||
536 | + |
||
537 | +static const char *bcm6362_pinctrl_get_func_name(struct pinctrl_dev *pctldev, |
||
538 | + unsigned selector) |
||
539 | +{ |
||
540 | + return bcm6362_funcs[selector].name; |
||
541 | +} |
||
542 | + |
||
543 | +static int bcm6362_pinctrl_get_groups(struct pinctrl_dev *pctldev, |
||
544 | + unsigned selector, |
||
545 | + const char * const **groups, |
||
546 | + unsigned * const num_groups) |
||
547 | +{ |
||
548 | + *groups = bcm6362_funcs[selector].groups; |
||
549 | + *num_groups = bcm6362_funcs[selector].num_groups; |
||
550 | + |
||
551 | + return 0; |
||
552 | +} |
||
553 | + |
||
554 | +static void bcm6362_rmw_mux(struct bcm6362_pinctrl *pctl, void __iomem *reg, |
||
555 | + u32 mask, u32 val) |
||
556 | +{ |
||
557 | + unsigned long flags; |
||
558 | + u32 tmp; |
||
559 | + |
||
560 | + spin_lock_irqsave(&pctl->lock, flags); |
||
561 | + tmp = __raw_readl(reg); |
||
562 | + tmp &= ~mask; |
||
563 | + tmp |= val & mask; |
||
564 | + __raw_writel(tmp, reg); |
||
565 | + |
||
566 | + spin_unlock_irqrestore(&pctl->lock, flags); |
||
567 | +} |
||
568 | + |
||
569 | +static void bcm6362_set_gpio(struct bcm6362_pinctrl *pctl, unsigned pin) |
||
570 | +{ |
||
571 | + const struct pinctrl_pin_desc *desc = &bcm6362_pins[pin]; |
||
572 | + u32 mask = BIT(pin % 32); |
||
573 | + |
||
574 | + if (desc->drv_data) |
||
575 | + bcm6362_rmw_mux(pctl, pctl->basemode, (u32)desc->drv_data, 0); |
||
576 | + |
||
577 | + if (pin < 32) { |
||
578 | + /* base mode 0 => gpio 1 => mux function */ |
||
579 | + bcm6362_rmw_mux(pctl, pctl->mode, mask, 0); |
||
580 | + |
||
581 | + /* pins 0-23 might be muxed to led */ |
||
582 | + if (pin < 24) |
||
583 | + bcm6362_rmw_mux(pctl, pctl->led, mask, 0); |
||
584 | + } else { |
||
585 | + /* ctrl reg 0 => wifi function 1 => gpio */ |
||
586 | + bcm6362_rmw_mux(pctl, pctl->ctrl, mask, mask); |
||
587 | + } |
||
588 | +} |
||
589 | + |
||
590 | +static int bcm6362_pinctrl_set_mux(struct pinctrl_dev *pctldev, |
||
591 | + unsigned selector, unsigned group) |
||
592 | +{ |
||
593 | + struct bcm6362_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
||
594 | + const struct bcm6362_pingroup *grp = &bcm6362_groups[group]; |
||
595 | + const struct bcm6362_function *f = &bcm6362_funcs[selector]; |
||
596 | + unsigned i; |
||
597 | + void __iomem *reg; |
||
598 | + u32 val, mask; |
||
599 | + |
||
600 | + for (i = 0; i < grp->num_pins; i++) |
||
601 | + bcm6362_set_gpio(pctl, grp->pins[i]); |
||
602 | + |
||
603 | + switch (f->reg) { |
||
604 | + case BCM6362_LEDCTRL: |
||
605 | + reg = pctl->led; |
||
606 | + mask = BIT(grp->pins[0]); |
||
607 | + val = BIT(grp->pins[0]); |
||
608 | + break; |
||
609 | + case BCM6362_MODE: |
||
610 | + reg = pctl->ctrl; |
||
611 | + mask = BIT(grp->pins[0]); |
||
612 | + val = BIT(grp->pins[0]); |
||
613 | + break; |
||
614 | + case BCM6362_CTRL: |
||
615 | + reg = pctl->ctrl; |
||
616 | + mask = BIT(grp->pins[0]); |
||
617 | + val = 0; |
||
618 | + break; |
||
619 | + case BCM6362_BASEMODE: |
||
620 | + reg = pctl->basemode; |
||
621 | + mask = f->basemode_mask; |
||
622 | + val = f->basemode_mask; |
||
623 | + break; |
||
624 | + default: |
||
625 | + WARN_ON(1); |
||
626 | + return -EINVAL; |
||
627 | + } |
||
628 | + |
||
629 | + bcm6362_rmw_mux(pctl, reg, mask, val); |
||
630 | + |
||
631 | + return 0; |
||
632 | +} |
||
633 | + |
||
634 | +static int bcm6362_gpio_request_enable(struct pinctrl_dev *pctldev, |
||
635 | + struct pinctrl_gpio_range *range, |
||
636 | + unsigned offset) |
||
637 | +{ |
||
638 | + struct bcm6362_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); |
||
639 | + |
||
640 | + /* disable all functions using this pin */ |
||
641 | + bcm6362_set_gpio(pctl, offset); |
||
642 | + |
||
643 | + return 0; |
||
644 | +} |
||
645 | + |
||
646 | +static struct pinctrl_ops bcm6362_pctl_ops = { |
||
647 | + .get_groups_count = bcm6362_pinctrl_get_group_count, |
||
648 | + .get_group_name = bcm6362_pinctrl_get_group_name, |
||
649 | + .get_group_pins = bcm6362_pinctrl_get_group_pins, |
||
650 | +#ifdef CONFIG_OF |
||
651 | + .dt_node_to_map = pinconf_generic_dt_node_to_map_pin, |
||
652 | + .dt_free_map = pinctrl_utils_free_map, |
||
653 | +#endif |
||
654 | +}; |
||
655 | + |
||
656 | +static struct pinmux_ops bcm6362_pmx_ops = { |
||
657 | + .get_functions_count = bcm6362_pinctrl_get_func_count, |
||
658 | + .get_function_name = bcm6362_pinctrl_get_func_name, |
||
659 | + .get_function_groups = bcm6362_pinctrl_get_groups, |
||
660 | + .set_mux = bcm6362_pinctrl_set_mux, |
||
661 | + .gpio_request_enable = bcm6362_gpio_request_enable, |
||
662 | + .strict = true, |
||
663 | +}; |
||
664 | + |
||
665 | +static int bcm6362_pinctrl_probe(struct platform_device *pdev) |
||
666 | +{ |
||
667 | + struct bcm6362_pinctrl *pctl; |
||
668 | + struct resource *res; |
||
669 | + void __iomem *led, *mode, *ctrl, *basemode; |
||
670 | + |
||
671 | + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "led"); |
||
672 | + led = devm_ioremap_resource(&pdev->dev, res); |
||
673 | + if (IS_ERR(led)) |
||
674 | + return PTR_ERR(led); |
||
675 | + |
||
676 | + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mode"); |
||
677 | + mode = devm_ioremap_resource(&pdev->dev, res); |
||
678 | + if (IS_ERR(mode)) |
||
679 | + return PTR_ERR(mode); |
||
680 | + |
||
681 | + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl"); |
||
682 | + ctrl = devm_ioremap_resource(&pdev->dev, res); |
||
683 | + if (IS_ERR(ctrl)) |
||
684 | + return PTR_ERR(ctrl); |
||
685 | + |
||
686 | + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "basemode"); |
||
687 | + basemode = devm_ioremap_resource(&pdev->dev, res); |
||
688 | + if (IS_ERR(basemode)) |
||
689 | + return PTR_ERR(basemode); |
||
690 | + |
||
691 | + pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); |
||
692 | + if (!pctl) |
||
693 | + return -ENOMEM; |
||
694 | + |
||
695 | + spin_lock_init(&pctl->lock); |
||
696 | + |
||
697 | + pctl->led = led; |
||
698 | + pctl->mode = mode; |
||
699 | + pctl->ctrl = ctrl; |
||
700 | + pctl->basemode = basemode; |
||
701 | + |
||
702 | + pctl->desc.name = dev_name(&pdev->dev); |
||
703 | + pctl->desc.owner = THIS_MODULE; |
||
704 | + pctl->desc.pctlops = &bcm6362_pctl_ops; |
||
705 | + pctl->desc.pmxops = &bcm6362_pmx_ops; |
||
706 | + |
||
707 | + pctl->desc.npins = ARRAY_SIZE(bcm6362_pins); |
||
708 | + pctl->desc.pins = bcm6362_pins; |
||
709 | + |
||
710 | + platform_set_drvdata(pdev, pctl); |
||
711 | + |
||
712 | + pctl->pctldev = bcm63xx_pinctrl_register(pdev, &pctl->desc, pctl, |
||
713 | + pctl->gpio, BCM6362_NGPIO); |
||
714 | + if (IS_ERR(pctl->pctldev)) |
||
715 | + return PTR_ERR(pctl->pctldev); |
||
716 | + |
||
717 | + return 0; |
||
718 | +} |
||
719 | + |
||
720 | +static const struct of_device_id bcm6362_pinctrl_match[] = { |
||
721 | + { .compatible = "brcm,bcm6362-pinctrl", }, |
||
722 | + { }, |
||
723 | +}; |
||
724 | + |
||
725 | +static struct platform_driver bcm6362_pinctrl_driver = { |
||
726 | + .probe = bcm6362_pinctrl_probe, |
||
727 | + .driver = { |
||
728 | + .name = "bcm6362-pinctrl", |
||
729 | + .of_match_table = bcm6362_pinctrl_match, |
||
730 | + }, |
||
731 | +}; |
||
732 | + |
||
733 | +builtin_platform_driver(bcm6362_pinctrl_driver); |