1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2013, Sony Mobile Communications AB. 4 */ 5 #ifndef __PINCTRL_MSM_H__ 6 #define __PINCTRL_MSM_H__ 7 8 #include <linux/pm.h> 9 #include <linux/types.h> 10 11 #include <linux/pinctrl/pinctrl.h> 12 13 struct platform_device; 14 15 struct pinctrl_pin_desc; 16 17 #define APQ_PIN_FUNCTION(fname) \ 18 [APQ_MUX_##fname] = PINCTRL_PINFUNCTION(#fname, \ 19 fname##_groups, \ 20 ARRAY_SIZE(fname##_groups)) 21 22 #define IPQ_PIN_FUNCTION(fname) \ 23 [IPQ_MUX_##fname] = PINCTRL_PINFUNCTION(#fname, \ 24 fname##_groups, \ 25 ARRAY_SIZE(fname##_groups)) 26 27 #define MSM_PIN_FUNCTION(fname) \ 28 [msm_mux_##fname] = PINCTRL_PINFUNCTION(#fname, \ 29 fname##_groups, \ 30 ARRAY_SIZE(fname##_groups)) 31 32 #define QCA_PIN_FUNCTION(fname) \ 33 [qca_mux_##fname] = PINCTRL_PINFUNCTION(#fname, \ 34 fname##_groups, \ 35 ARRAY_SIZE(fname##_groups)) 36 37 /** 38 * struct msm_pingroup - Qualcomm pingroup definition 39 * @grp: Generic data of the pin group (name and pins) 40 * @funcs: A list of pinmux functions that can be selected for 41 * this group. The index of the selected function is used 42 * for programming the function selector. 43 * Entries should be indices into the groups list of the 44 * struct msm_pinctrl_soc_data. 45 * @ctl_reg: Offset of the register holding control bits for this group. 46 * @io_reg: Offset of the register holding input/output bits for this group. 47 * @intr_cfg_reg: Offset of the register holding interrupt configuration bits. 48 * @intr_status_reg: Offset of the register holding the status bits for this group. 49 * @intr_target_reg: Offset of the register specifying routing of the interrupts 50 * from this group. 51 * @mux_bit: Offset in @ctl_reg for the pinmux function selection. 52 * @pull_bit: Offset in @ctl_reg for the bias configuration. 53 * @drv_bit: Offset in @ctl_reg for the drive strength configuration. 54 * @od_bit: Offset in @ctl_reg for controlling open drain. 55 * @oe_bit: Offset in @ctl_reg for controlling output enable. 56 * @in_bit: Offset in @io_reg for the input bit value. 57 * @out_bit: Offset in @io_reg for the output bit value. 58 * @intr_enable_bit: Offset in @intr_cfg_reg for enabling the interrupt for this group. 59 * @intr_status_bit: Offset in @intr_status_reg for reading and acking the interrupt 60 * status. 61 * @intr_target_bit: Offset in @intr_target_reg for configuring the interrupt routing. 62 * @intr_target_width: Number of bits used for specifying interrupt routing target. 63 * @intr_target_kpss_val: Value in @intr_target_bit for specifying that the interrupt from 64 * this gpio should get routed to the KPSS processor. 65 * @intr_raw_status_bit: Offset in @intr_cfg_reg for the raw status bit. 66 * @intr_polarity_bit: Offset in @intr_cfg_reg for specifying polarity of the interrupt. 67 * @intr_detection_bit: Offset in @intr_cfg_reg for specifying interrupt type. 68 * @intr_detection_width: Number of bits used for specifying interrupt type, 69 * Should be 2 for SoCs that can detect both edges in hardware, 70 * otherwise 1. 71 */ 72 struct msm_pingroup { 73 struct pingroup grp; 74 75 unsigned *funcs; 76 unsigned nfuncs; 77 78 u32 ctl_reg; 79 u32 io_reg; 80 u32 intr_cfg_reg; 81 u32 intr_status_reg; 82 u32 intr_target_reg; 83 84 unsigned int tile:2; 85 86 unsigned mux_bit:5; 87 88 unsigned pull_bit:5; 89 unsigned drv_bit:5; 90 unsigned i2c_pull_bit:5; 91 92 unsigned od_bit:5; 93 unsigned egpio_enable:5; 94 unsigned egpio_present:5; 95 unsigned oe_bit:5; 96 unsigned in_bit:5; 97 unsigned out_bit:5; 98 99 unsigned intr_enable_bit:5; 100 unsigned intr_status_bit:5; 101 unsigned intr_ack_high:1; 102 103 unsigned intr_target_bit:5; 104 unsigned intr_target_width:5; 105 unsigned intr_target_kpss_val:5; 106 unsigned intr_raw_status_bit:5; 107 unsigned intr_polarity_bit:5; 108 unsigned intr_detection_bit:5; 109 unsigned intr_detection_width:5; 110 }; 111 112 /** 113 * struct msm_gpio_wakeirq_map - Map of GPIOs and their wakeup pins 114 * @gpio: The GPIOs that are wakeup capable 115 * @wakeirq: The interrupt at the always-on interrupt controller 116 */ 117 struct msm_gpio_wakeirq_map { 118 unsigned int gpio; 119 unsigned int wakeirq; 120 }; 121 122 /** 123 * struct msm_pinctrl_soc_data - Qualcomm pin controller driver configuration 124 * @pins: An array describing all pins the pin controller affects. 125 * @npins: The number of entries in @pins. 126 * @functions: An array describing all mux functions the SoC supports. 127 * @nfunctions: The number of entries in @functions. 128 * @groups: An array describing all pin groups the pin SoC supports. 129 * @ngroups: The numbmer of entries in @groups. 130 * @ngpio: The number of pingroups the driver should expose as GPIOs. 131 * @pull_no_keeper: The SoC does not support keeper bias. 132 * @wakeirq_map: The map of wakeup capable GPIOs and the pin at PDC/MPM 133 * @nwakeirq_map: The number of entries in @wakeirq_map 134 * @wakeirq_dual_edge_errata: If true then GPIOs using the wakeirq_map need 135 * to be aware that their parent can't handle dual 136 * edge interrupts. 137 * @gpio_func: Which function number is GPIO (usually 0). 138 * @egpio_func: If non-zero then this SoC supports eGPIO. Even though in 139 * hardware this is a mux 1-level above the TLMM, we'll treat 140 * it as if this is just another mux state of the TLMM. Since 141 * it doesn't really map to hardware, we'll allocate a virtual 142 * function number for eGPIO and any time we see that function 143 * number used we'll treat it as a request to mux away from 144 * our TLMM towards another owner. 145 */ 146 struct msm_pinctrl_soc_data { 147 const struct pinctrl_pin_desc *pins; 148 unsigned npins; 149 const struct pinfunction *functions; 150 unsigned nfunctions; 151 const struct msm_pingroup *groups; 152 unsigned ngroups; 153 unsigned ngpios; 154 bool pull_no_keeper; 155 const char *const *tiles; 156 unsigned int ntiles; 157 const int *reserved_gpios; 158 const struct msm_gpio_wakeirq_map *wakeirq_map; 159 unsigned int nwakeirq_map; 160 bool wakeirq_dual_edge_errata; 161 unsigned int gpio_func; 162 unsigned int egpio_func; 163 }; 164 165 extern const struct dev_pm_ops msm_pinctrl_dev_pm_ops; 166 167 int msm_pinctrl_probe(struct platform_device *pdev, 168 const struct msm_pinctrl_soc_data *soc_data); 169 void msm_pinctrl_remove(struct platform_device *pdev); 170 171 #endif 172