699 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (c) 2014, Sony Mobile Communications AB.4 * Copyright (c) 2013, The Linux Foundation. All rights reserved.5 * Author: Bjorn Andersson <bjorn.andersson@sonymobile.com>6 */7 8#include <linux/module.h>9#include <linux/platform_device.h>10#include <linux/property.h>11#include <linux/of.h>12#include <linux/of_platform.h>13#include <linux/io.h>14#include <linux/interrupt.h>15#include <linux/mfd/qcom_rpm.h>16#include <linux/mfd/syscon.h>17#include <linux/regmap.h>18#include <linux/clk.h>19 20#include <dt-bindings/mfd/qcom-rpm.h>21 22struct qcom_rpm_resource {23 unsigned target_id;24 unsigned status_id;25 unsigned select_id;26 unsigned size;27};28 29struct qcom_rpm_data {30 u32 version;31 const struct qcom_rpm_resource *resource_table;32 unsigned int n_resources;33 unsigned int req_ctx_off;34 unsigned int req_sel_off;35 unsigned int ack_ctx_off;36 unsigned int ack_sel_off;37 unsigned int req_sel_size;38 unsigned int ack_sel_size;39};40 41struct qcom_rpm {42 struct device *dev;43 struct regmap *ipc_regmap;44 unsigned ipc_offset;45 unsigned ipc_bit;46 struct clk *ramclk;47 48 struct completion ack;49 struct mutex lock;50 51 void __iomem *status_regs;52 void __iomem *ctrl_regs;53 void __iomem *req_regs;54 55 u32 ack_status;56 57 const struct qcom_rpm_data *data;58};59 60#define RPM_STATUS_REG(rpm, i) ((rpm)->status_regs + (i) * 4)61#define RPM_CTRL_REG(rpm, i) ((rpm)->ctrl_regs + (i) * 4)62#define RPM_REQ_REG(rpm, i) ((rpm)->req_regs + (i) * 4)63 64#define RPM_REQUEST_TIMEOUT (5 * HZ)65 66#define RPM_MAX_SEL_SIZE 767 68#define RPM_NOTIFICATION BIT(30)69#define RPM_REJECTED BIT(31)70 71static const struct qcom_rpm_resource apq8064_rpm_resource_table[] = {72 [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 },73 [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 },74 [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 },75 [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 },76 [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 },77 [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 },78 [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 },79 [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 },80 [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 },81 [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 },82 [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 },83 [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 },84 [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 },85 [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 },86 [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 },87 [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 },88 [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 },89 [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 },90 [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 1 },91 [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 1 },92 [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 },93 [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 21 },94 [QCOM_RPM_PM8921_SMPS1] = { 116, 31, 30, 2 },95 [QCOM_RPM_PM8921_SMPS2] = { 118, 33, 31, 2 },96 [QCOM_RPM_PM8921_SMPS3] = { 120, 35, 32, 2 },97 [QCOM_RPM_PM8921_SMPS4] = { 122, 37, 33, 2 },98 [QCOM_RPM_PM8921_SMPS5] = { 124, 39, 34, 2 },99 [QCOM_RPM_PM8921_SMPS6] = { 126, 41, 35, 2 },100 [QCOM_RPM_PM8921_SMPS7] = { 128, 43, 36, 2 },101 [QCOM_RPM_PM8921_SMPS8] = { 130, 45, 37, 2 },102 [QCOM_RPM_PM8921_LDO1] = { 132, 47, 38, 2 },103 [QCOM_RPM_PM8921_LDO2] = { 134, 49, 39, 2 },104 [QCOM_RPM_PM8921_LDO3] = { 136, 51, 40, 2 },105 [QCOM_RPM_PM8921_LDO4] = { 138, 53, 41, 2 },106 [QCOM_RPM_PM8921_LDO5] = { 140, 55, 42, 2 },107 [QCOM_RPM_PM8921_LDO6] = { 142, 57, 43, 2 },108 [QCOM_RPM_PM8921_LDO7] = { 144, 59, 44, 2 },109 [QCOM_RPM_PM8921_LDO8] = { 146, 61, 45, 2 },110 [QCOM_RPM_PM8921_LDO9] = { 148, 63, 46, 2 },111 [QCOM_RPM_PM8921_LDO10] = { 150, 65, 47, 2 },112 [QCOM_RPM_PM8921_LDO11] = { 152, 67, 48, 2 },113 [QCOM_RPM_PM8921_LDO12] = { 154, 69, 49, 2 },114 [QCOM_RPM_PM8921_LDO13] = { 156, 71, 50, 2 },115 [QCOM_RPM_PM8921_LDO14] = { 158, 73, 51, 2 },116 [QCOM_RPM_PM8921_LDO15] = { 160, 75, 52, 2 },117 [QCOM_RPM_PM8921_LDO16] = { 162, 77, 53, 2 },118 [QCOM_RPM_PM8921_LDO17] = { 164, 79, 54, 2 },119 [QCOM_RPM_PM8921_LDO18] = { 166, 81, 55, 2 },120 [QCOM_RPM_PM8921_LDO19] = { 168, 83, 56, 2 },121 [QCOM_RPM_PM8921_LDO20] = { 170, 85, 57, 2 },122 [QCOM_RPM_PM8921_LDO21] = { 172, 87, 58, 2 },123 [QCOM_RPM_PM8921_LDO22] = { 174, 89, 59, 2 },124 [QCOM_RPM_PM8921_LDO23] = { 176, 91, 60, 2 },125 [QCOM_RPM_PM8921_LDO24] = { 178, 93, 61, 2 },126 [QCOM_RPM_PM8921_LDO25] = { 180, 95, 62, 2 },127 [QCOM_RPM_PM8921_LDO26] = { 182, 97, 63, 2 },128 [QCOM_RPM_PM8921_LDO27] = { 184, 99, 64, 2 },129 [QCOM_RPM_PM8921_LDO28] = { 186, 101, 65, 2 },130 [QCOM_RPM_PM8921_LDO29] = { 188, 103, 66, 2 },131 [QCOM_RPM_PM8921_CLK1] = { 190, 105, 67, 2 },132 [QCOM_RPM_PM8921_CLK2] = { 192, 107, 68, 2 },133 [QCOM_RPM_PM8921_LVS1] = { 194, 109, 69, 1 },134 [QCOM_RPM_PM8921_LVS2] = { 195, 110, 70, 1 },135 [QCOM_RPM_PM8921_LVS3] = { 196, 111, 71, 1 },136 [QCOM_RPM_PM8921_LVS4] = { 197, 112, 72, 1 },137 [QCOM_RPM_PM8921_LVS5] = { 198, 113, 73, 1 },138 [QCOM_RPM_PM8921_LVS6] = { 199, 114, 74, 1 },139 [QCOM_RPM_PM8921_LVS7] = { 200, 115, 75, 1 },140 [QCOM_RPM_PM8821_SMPS1] = { 201, 116, 76, 2 },141 [QCOM_RPM_PM8821_SMPS2] = { 203, 118, 77, 2 },142 [QCOM_RPM_PM8821_LDO1] = { 205, 120, 78, 2 },143 [QCOM_RPM_PM8921_NCP] = { 207, 122, 80, 2 },144 [QCOM_RPM_CXO_BUFFERS] = { 209, 124, 81, 1 },145 [QCOM_RPM_USB_OTG_SWITCH] = { 210, 125, 82, 1 },146 [QCOM_RPM_HDMI_SWITCH] = { 211, 126, 83, 1 },147 [QCOM_RPM_DDR_DMM] = { 212, 127, 84, 2 },148 [QCOM_RPM_QDSS_CLK] = { 214, ~0, 7, 1 },149 [QCOM_RPM_VDDMIN_GPIO] = { 215, 131, 89, 1 },150};151 152static const struct qcom_rpm_data apq8064_template = {153 .version = 3,154 .resource_table = apq8064_rpm_resource_table,155 .n_resources = ARRAY_SIZE(apq8064_rpm_resource_table),156 .req_ctx_off = 3,157 .req_sel_off = 11,158 .ack_ctx_off = 15,159 .ack_sel_off = 23,160 .req_sel_size = 4,161 .ack_sel_size = 7,162};163 164static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = {165 [QCOM_RPM_CXO_CLK] = { 32, 12, 5, 1 },166 [QCOM_RPM_PXO_CLK] = { 33, 13, 6, 1 },167 [QCOM_RPM_PLL_4] = { 34, 14, 7, 1 },168 [QCOM_RPM_APPS_FABRIC_CLK] = { 35, 15, 8, 1 },169 [QCOM_RPM_SYS_FABRIC_CLK] = { 36, 16, 9, 1 },170 [QCOM_RPM_MM_FABRIC_CLK] = { 37, 17, 10, 1 },171 [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 38, 18, 11, 1 },172 [QCOM_RPM_SFPB_CLK] = { 39, 19, 12, 1 },173 [QCOM_RPM_CFPB_CLK] = { 40, 20, 13, 1 },174 [QCOM_RPM_MMFPB_CLK] = { 41, 21, 14, 1 },175 [QCOM_RPM_SMI_CLK] = { 42, 22, 15, 1 },176 [QCOM_RPM_EBI1_CLK] = { 43, 23, 16, 1 },177 [QCOM_RPM_APPS_L2_CACHE_CTL] = { 44, 24, 17, 1 },178 [QCOM_RPM_APPS_FABRIC_HALT] = { 45, 25, 18, 2 },179 [QCOM_RPM_APPS_FABRIC_MODE] = { 47, 26, 19, 3 },180 [QCOM_RPM_APPS_FABRIC_ARB] = { 51, 28, 21, 6 },181 [QCOM_RPM_SYS_FABRIC_HALT] = { 63, 29, 22, 2 },182 [QCOM_RPM_SYS_FABRIC_MODE] = { 65, 30, 23, 3 },183 [QCOM_RPM_SYS_FABRIC_ARB] = { 69, 32, 25, 22 },184 [QCOM_RPM_MM_FABRIC_HALT] = { 105, 33, 26, 2 },185 [QCOM_RPM_MM_FABRIC_MODE] = { 107, 34, 27, 3 },186 [QCOM_RPM_MM_FABRIC_ARB] = { 111, 36, 29, 23 },187 [QCOM_RPM_PM8901_SMPS0] = { 134, 37, 30, 2 },188 [QCOM_RPM_PM8901_SMPS1] = { 136, 39, 31, 2 },189 [QCOM_RPM_PM8901_SMPS2] = { 138, 41, 32, 2 },190 [QCOM_RPM_PM8901_SMPS3] = { 140, 43, 33, 2 },191 [QCOM_RPM_PM8901_SMPS4] = { 142, 45, 34, 2 },192 [QCOM_RPM_PM8901_LDO0] = { 144, 47, 35, 2 },193 [QCOM_RPM_PM8901_LDO1] = { 146, 49, 36, 2 },194 [QCOM_RPM_PM8901_LDO2] = { 148, 51, 37, 2 },195 [QCOM_RPM_PM8901_LDO3] = { 150, 53, 38, 2 },196 [QCOM_RPM_PM8901_LDO4] = { 152, 55, 39, 2 },197 [QCOM_RPM_PM8901_LDO5] = { 154, 57, 40, 2 },198 [QCOM_RPM_PM8901_LDO6] = { 156, 59, 41, 2 },199 [QCOM_RPM_PM8901_LVS0] = { 158, 61, 42, 1 },200 [QCOM_RPM_PM8901_LVS1] = { 159, 62, 43, 1 },201 [QCOM_RPM_PM8901_LVS2] = { 160, 63, 44, 1 },202 [QCOM_RPM_PM8901_LVS3] = { 161, 64, 45, 1 },203 [QCOM_RPM_PM8901_MVS] = { 162, 65, 46, 1 },204 [QCOM_RPM_PM8058_SMPS0] = { 163, 66, 47, 2 },205 [QCOM_RPM_PM8058_SMPS1] = { 165, 68, 48, 2 },206 [QCOM_RPM_PM8058_SMPS2] = { 167, 70, 49, 2 },207 [QCOM_RPM_PM8058_SMPS3] = { 169, 72, 50, 2 },208 [QCOM_RPM_PM8058_SMPS4] = { 171, 74, 51, 2 },209 [QCOM_RPM_PM8058_LDO0] = { 173, 76, 52, 2 },210 [QCOM_RPM_PM8058_LDO1] = { 175, 78, 53, 2 },211 [QCOM_RPM_PM8058_LDO2] = { 177, 80, 54, 2 },212 [QCOM_RPM_PM8058_LDO3] = { 179, 82, 55, 2 },213 [QCOM_RPM_PM8058_LDO4] = { 181, 84, 56, 2 },214 [QCOM_RPM_PM8058_LDO5] = { 183, 86, 57, 2 },215 [QCOM_RPM_PM8058_LDO6] = { 185, 88, 58, 2 },216 [QCOM_RPM_PM8058_LDO7] = { 187, 90, 59, 2 },217 [QCOM_RPM_PM8058_LDO8] = { 189, 92, 60, 2 },218 [QCOM_RPM_PM8058_LDO9] = { 191, 94, 61, 2 },219 [QCOM_RPM_PM8058_LDO10] = { 193, 96, 62, 2 },220 [QCOM_RPM_PM8058_LDO11] = { 195, 98, 63, 2 },221 [QCOM_RPM_PM8058_LDO12] = { 197, 100, 64, 2 },222 [QCOM_RPM_PM8058_LDO13] = { 199, 102, 65, 2 },223 [QCOM_RPM_PM8058_LDO14] = { 201, 104, 66, 2 },224 [QCOM_RPM_PM8058_LDO15] = { 203, 106, 67, 2 },225 [QCOM_RPM_PM8058_LDO16] = { 205, 108, 68, 2 },226 [QCOM_RPM_PM8058_LDO17] = { 207, 110, 69, 2 },227 [QCOM_RPM_PM8058_LDO18] = { 209, 112, 70, 2 },228 [QCOM_RPM_PM8058_LDO19] = { 211, 114, 71, 2 },229 [QCOM_RPM_PM8058_LDO20] = { 213, 116, 72, 2 },230 [QCOM_RPM_PM8058_LDO21] = { 215, 118, 73, 2 },231 [QCOM_RPM_PM8058_LDO22] = { 217, 120, 74, 2 },232 [QCOM_RPM_PM8058_LDO23] = { 219, 122, 75, 2 },233 [QCOM_RPM_PM8058_LDO24] = { 221, 124, 76, 2 },234 [QCOM_RPM_PM8058_LDO25] = { 223, 126, 77, 2 },235 [QCOM_RPM_PM8058_LVS0] = { 225, 128, 78, 1 },236 [QCOM_RPM_PM8058_LVS1] = { 226, 129, 79, 1 },237 [QCOM_RPM_PM8058_NCP] = { 227, 130, 80, 2 },238 [QCOM_RPM_CXO_BUFFERS] = { 229, 132, 81, 1 },239};240 241static const struct qcom_rpm_data msm8660_template = {242 .version = 2,243 .resource_table = msm8660_rpm_resource_table,244 .n_resources = ARRAY_SIZE(msm8660_rpm_resource_table),245 .req_ctx_off = 3,246 .req_sel_off = 11,247 .ack_ctx_off = 19,248 .ack_sel_off = 27,249 .req_sel_size = 7,250 .ack_sel_size = 7,251};252 253static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = {254 [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 },255 [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 },256 [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 },257 [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 },258 [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 },259 [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 },260 [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 },261 [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 },262 [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 },263 [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 },264 [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 },265 [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 },266 [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 },267 [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 },268 [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 },269 [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 },270 [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 },271 [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 29 },272 [QCOM_RPM_MM_FABRIC_HALT] = { 88, 27, 26, 1 },273 [QCOM_RPM_MM_FABRIC_MODE] = { 90, 28, 27, 1 },274 [QCOM_RPM_MM_FABRIC_IOCTL] = { 93, 29, 28, 1 },275 [QCOM_RPM_MM_FABRIC_ARB] = { 94, 30, 29, 23 },276 [QCOM_RPM_PM8921_SMPS1] = { 117, 31, 30, 2 },277 [QCOM_RPM_PM8921_SMPS2] = { 119, 33, 31, 2 },278 [QCOM_RPM_PM8921_SMPS3] = { 121, 35, 32, 2 },279 [QCOM_RPM_PM8921_SMPS4] = { 123, 37, 33, 2 },280 [QCOM_RPM_PM8921_SMPS5] = { 125, 39, 34, 2 },281 [QCOM_RPM_PM8921_SMPS6] = { 127, 41, 35, 2 },282 [QCOM_RPM_PM8921_SMPS7] = { 129, 43, 36, 2 },283 [QCOM_RPM_PM8921_SMPS8] = { 131, 45, 37, 2 },284 [QCOM_RPM_PM8921_LDO1] = { 133, 47, 38, 2 },285 [QCOM_RPM_PM8921_LDO2] = { 135, 49, 39, 2 },286 [QCOM_RPM_PM8921_LDO3] = { 137, 51, 40, 2 },287 [QCOM_RPM_PM8921_LDO4] = { 139, 53, 41, 2 },288 [QCOM_RPM_PM8921_LDO5] = { 141, 55, 42, 2 },289 [QCOM_RPM_PM8921_LDO6] = { 143, 57, 43, 2 },290 [QCOM_RPM_PM8921_LDO7] = { 145, 59, 44, 2 },291 [QCOM_RPM_PM8921_LDO8] = { 147, 61, 45, 2 },292 [QCOM_RPM_PM8921_LDO9] = { 149, 63, 46, 2 },293 [QCOM_RPM_PM8921_LDO10] = { 151, 65, 47, 2 },294 [QCOM_RPM_PM8921_LDO11] = { 153, 67, 48, 2 },295 [QCOM_RPM_PM8921_LDO12] = { 155, 69, 49, 2 },296 [QCOM_RPM_PM8921_LDO13] = { 157, 71, 50, 2 },297 [QCOM_RPM_PM8921_LDO14] = { 159, 73, 51, 2 },298 [QCOM_RPM_PM8921_LDO15] = { 161, 75, 52, 2 },299 [QCOM_RPM_PM8921_LDO16] = { 163, 77, 53, 2 },300 [QCOM_RPM_PM8921_LDO17] = { 165, 79, 54, 2 },301 [QCOM_RPM_PM8921_LDO18] = { 167, 81, 55, 2 },302 [QCOM_RPM_PM8921_LDO19] = { 169, 83, 56, 2 },303 [QCOM_RPM_PM8921_LDO20] = { 171, 85, 57, 2 },304 [QCOM_RPM_PM8921_LDO21] = { 173, 87, 58, 2 },305 [QCOM_RPM_PM8921_LDO22] = { 175, 89, 59, 2 },306 [QCOM_RPM_PM8921_LDO23] = { 177, 91, 60, 2 },307 [QCOM_RPM_PM8921_LDO24] = { 179, 93, 61, 2 },308 [QCOM_RPM_PM8921_LDO25] = { 181, 95, 62, 2 },309 [QCOM_RPM_PM8921_LDO26] = { 183, 97, 63, 2 },310 [QCOM_RPM_PM8921_LDO27] = { 185, 99, 64, 2 },311 [QCOM_RPM_PM8921_LDO28] = { 187, 101, 65, 2 },312 [QCOM_RPM_PM8921_LDO29] = { 189, 103, 66, 2 },313 [QCOM_RPM_PM8921_CLK1] = { 191, 105, 67, 2 },314 [QCOM_RPM_PM8921_CLK2] = { 193, 107, 68, 2 },315 [QCOM_RPM_PM8921_LVS1] = { 195, 109, 69, 1 },316 [QCOM_RPM_PM8921_LVS2] = { 196, 110, 70, 1 },317 [QCOM_RPM_PM8921_LVS3] = { 197, 111, 71, 1 },318 [QCOM_RPM_PM8921_LVS4] = { 198, 112, 72, 1 },319 [QCOM_RPM_PM8921_LVS5] = { 199, 113, 73, 1 },320 [QCOM_RPM_PM8921_LVS6] = { 200, 114, 74, 1 },321 [QCOM_RPM_PM8921_LVS7] = { 201, 115, 75, 1 },322 [QCOM_RPM_PM8921_NCP] = { 202, 116, 80, 2 },323 [QCOM_RPM_CXO_BUFFERS] = { 204, 118, 81, 1 },324 [QCOM_RPM_USB_OTG_SWITCH] = { 205, 119, 82, 1 },325 [QCOM_RPM_HDMI_SWITCH] = { 206, 120, 83, 1 },326 [QCOM_RPM_DDR_DMM] = { 207, 121, 84, 2 },327};328 329static const struct qcom_rpm_data msm8960_template = {330 .version = 3,331 .resource_table = msm8960_rpm_resource_table,332 .n_resources = ARRAY_SIZE(msm8960_rpm_resource_table),333 .req_ctx_off = 3,334 .req_sel_off = 11,335 .ack_ctx_off = 15,336 .ack_sel_off = 23,337 .req_sel_size = 4,338 .ack_sel_size = 7,339};340 341static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = {342 [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 },343 [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 },344 [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 },345 [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 },346 [QCOM_RPM_NSS_FABRIC_0_CLK] = { 29, 13, 10, 1 },347 [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 },348 [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 },349 [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 },350 [QCOM_RPM_NSS_FABRIC_1_CLK] = { 33, 17, 14, 1 },351 [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 },352 [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 2 },353 [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 3 },354 [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 },355 [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 },356 [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 2 },357 [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 3 },358 [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 },359 [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 },360 [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 2 },361 [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 3 },362 [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 },363 [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 2 },364 [QCOM_RPM_CXO_BUFFERS] = { 209, 33, 31, 1 },365 [QCOM_RPM_USB_OTG_SWITCH] = { 210, 34, 32, 1 },366 [QCOM_RPM_HDMI_SWITCH] = { 211, 35, 33, 1 },367 [QCOM_RPM_DDR_DMM] = { 212, 36, 34, 2 },368 [QCOM_RPM_VDDMIN_GPIO] = { 215, 40, 39, 1 },369 [QCOM_RPM_SMB208_S1a] = { 216, 41, 90, 2 },370 [QCOM_RPM_SMB208_S1b] = { 218, 43, 91, 2 },371 [QCOM_RPM_SMB208_S2a] = { 220, 45, 92, 2 },372 [QCOM_RPM_SMB208_S2b] = { 222, 47, 93, 2 },373};374 375static const struct qcom_rpm_data ipq806x_template = {376 .version = 3,377 .resource_table = ipq806x_rpm_resource_table,378 .n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table),379 .req_ctx_off = 3,380 .req_sel_off = 11,381 .ack_ctx_off = 15,382 .ack_sel_off = 23,383 .req_sel_size = 4,384 .ack_sel_size = 7,385};386 387static const struct qcom_rpm_resource mdm9615_rpm_resource_table[] = {388 [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 },389 [QCOM_RPM_SYS_FABRIC_CLK] = { 26, 10, 9, 1 },390 [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 27, 11, 11, 1 },391 [QCOM_RPM_SFPB_CLK] = { 28, 12, 12, 1 },392 [QCOM_RPM_CFPB_CLK] = { 29, 13, 13, 1 },393 [QCOM_RPM_EBI1_CLK] = { 30, 14, 16, 1 },394 [QCOM_RPM_APPS_FABRIC_HALT] = { 31, 15, 22, 2 },395 [QCOM_RPM_APPS_FABRIC_MODE] = { 33, 16, 23, 3 },396 [QCOM_RPM_APPS_FABRIC_IOCTL] = { 36, 17, 24, 1 },397 [QCOM_RPM_APPS_FABRIC_ARB] = { 37, 18, 25, 27 },398 [QCOM_RPM_PM8018_SMPS1] = { 64, 19, 30, 2 },399 [QCOM_RPM_PM8018_SMPS2] = { 66, 21, 31, 2 },400 [QCOM_RPM_PM8018_SMPS3] = { 68, 23, 32, 2 },401 [QCOM_RPM_PM8018_SMPS4] = { 70, 25, 33, 2 },402 [QCOM_RPM_PM8018_SMPS5] = { 72, 27, 34, 2 },403 [QCOM_RPM_PM8018_LDO1] = { 74, 29, 35, 2 },404 [QCOM_RPM_PM8018_LDO2] = { 76, 31, 36, 2 },405 [QCOM_RPM_PM8018_LDO3] = { 78, 33, 37, 2 },406 [QCOM_RPM_PM8018_LDO4] = { 80, 35, 38, 2 },407 [QCOM_RPM_PM8018_LDO5] = { 82, 37, 39, 2 },408 [QCOM_RPM_PM8018_LDO6] = { 84, 39, 40, 2 },409 [QCOM_RPM_PM8018_LDO7] = { 86, 41, 41, 2 },410 [QCOM_RPM_PM8018_LDO8] = { 88, 43, 42, 2 },411 [QCOM_RPM_PM8018_LDO9] = { 90, 45, 43, 2 },412 [QCOM_RPM_PM8018_LDO10] = { 92, 47, 44, 2 },413 [QCOM_RPM_PM8018_LDO11] = { 94, 49, 45, 2 },414 [QCOM_RPM_PM8018_LDO12] = { 96, 51, 46, 2 },415 [QCOM_RPM_PM8018_LDO13] = { 98, 53, 47, 2 },416 [QCOM_RPM_PM8018_LDO14] = { 100, 55, 48, 2 },417 [QCOM_RPM_PM8018_LVS1] = { 102, 57, 49, 1 },418 [QCOM_RPM_PM8018_NCP] = { 103, 58, 80, 2 },419 [QCOM_RPM_CXO_BUFFERS] = { 105, 60, 81, 1 },420 [QCOM_RPM_USB_OTG_SWITCH] = { 106, 61, 82, 1 },421 [QCOM_RPM_HDMI_SWITCH] = { 107, 62, 83, 1 },422 [QCOM_RPM_VOLTAGE_CORNER] = { 109, 64, 87, 1 },423};424 425static const struct qcom_rpm_data mdm9615_template = {426 .version = 3,427 .resource_table = mdm9615_rpm_resource_table,428 .n_resources = ARRAY_SIZE(mdm9615_rpm_resource_table),429 .req_ctx_off = 3,430 .req_sel_off = 11,431 .ack_ctx_off = 15,432 .ack_sel_off = 23,433 .req_sel_size = 4,434 .ack_sel_size = 7,435};436 437static const struct of_device_id qcom_rpm_of_match[] = {438 { .compatible = "qcom,rpm-apq8064", .data = &apq8064_template },439 { .compatible = "qcom,rpm-msm8660", .data = &msm8660_template },440 { .compatible = "qcom,rpm-msm8960", .data = &msm8960_template },441 { .compatible = "qcom,rpm-ipq8064", .data = &ipq806x_template },442 { .compatible = "qcom,rpm-mdm9615", .data = &mdm9615_template },443 { }444};445MODULE_DEVICE_TABLE(of, qcom_rpm_of_match);446 447int qcom_rpm_write(struct qcom_rpm *rpm,448 int state,449 int resource,450 u32 *buf, size_t count)451{452 const struct qcom_rpm_resource *res;453 const struct qcom_rpm_data *data = rpm->data;454 u32 sel_mask[RPM_MAX_SEL_SIZE] = { 0 };455 int left;456 int ret = 0;457 int i;458 459 if (WARN_ON(resource < 0 || resource >= data->n_resources))460 return -EINVAL;461 462 res = &data->resource_table[resource];463 if (WARN_ON(res->size != count))464 return -EINVAL;465 466 mutex_lock(&rpm->lock);467 468 for (i = 0; i < res->size; i++)469 writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i));470 471 bitmap_set((unsigned long *)sel_mask, res->select_id, 1);472 for (i = 0; i < rpm->data->req_sel_size; i++) {473 writel_relaxed(sel_mask[i],474 RPM_CTRL_REG(rpm, rpm->data->req_sel_off + i));475 }476 477 writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, rpm->data->req_ctx_off));478 479 reinit_completion(&rpm->ack);480 regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit));481 482 left = wait_for_completion_timeout(&rpm->ack, RPM_REQUEST_TIMEOUT);483 if (!left)484 ret = -ETIMEDOUT;485 else if (rpm->ack_status & RPM_REJECTED)486 ret = -EIO;487 488 mutex_unlock(&rpm->lock);489 490 return ret;491}492EXPORT_SYMBOL(qcom_rpm_write);493 494static irqreturn_t qcom_rpm_ack_interrupt(int irq, void *dev)495{496 struct qcom_rpm *rpm = dev;497 u32 ack;498 int i;499 500 ack = readl_relaxed(RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));501 for (i = 0; i < rpm->data->ack_sel_size; i++)502 writel_relaxed(0,503 RPM_CTRL_REG(rpm, rpm->data->ack_sel_off + i));504 writel(0, RPM_CTRL_REG(rpm, rpm->data->ack_ctx_off));505 506 if (ack & RPM_NOTIFICATION) {507 dev_warn(rpm->dev, "ignoring notification!\n");508 } else {509 rpm->ack_status = ack;510 complete(&rpm->ack);511 }512 513 return IRQ_HANDLED;514}515 516static irqreturn_t qcom_rpm_err_interrupt(int irq, void *dev)517{518 struct qcom_rpm *rpm = dev;519 520 regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit));521 dev_err(rpm->dev, "RPM triggered fatal error\n");522 523 return IRQ_HANDLED;524}525 526static irqreturn_t qcom_rpm_wakeup_interrupt(int irq, void *dev)527{528 return IRQ_HANDLED;529}530 531static int qcom_rpm_probe(struct platform_device *pdev)532{533 struct device_node *syscon_np;534 struct qcom_rpm *rpm;535 u32 fw_version[3];536 int irq_wakeup;537 int irq_ack;538 int irq_err;539 int ret;540 541 rpm = devm_kzalloc(&pdev->dev, sizeof(*rpm), GFP_KERNEL);542 if (!rpm)543 return -ENOMEM;544 545 rpm->dev = &pdev->dev;546 mutex_init(&rpm->lock);547 init_completion(&rpm->ack);548 549 /* Enable message RAM clock */550 rpm->ramclk = devm_clk_get_enabled(&pdev->dev, "ram");551 if (IS_ERR(rpm->ramclk)) {552 ret = PTR_ERR(rpm->ramclk);553 if (ret == -EPROBE_DEFER)554 return ret;555 /*556 * Fall through in all other cases, as the clock is557 * optional. (Does not exist on all platforms.)558 */559 rpm->ramclk = NULL;560 }561 562 irq_ack = platform_get_irq_byname(pdev, "ack");563 if (irq_ack < 0)564 return irq_ack;565 566 irq_err = platform_get_irq_byname(pdev, "err");567 if (irq_err < 0)568 return irq_err;569 570 irq_wakeup = platform_get_irq_byname(pdev, "wakeup");571 if (irq_wakeup < 0)572 return irq_wakeup;573 574 rpm->data = device_get_match_data(&pdev->dev);575 if (!rpm->data)576 return -ENODEV;577 578 rpm->status_regs = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);579 if (IS_ERR(rpm->status_regs))580 return PTR_ERR(rpm->status_regs);581 rpm->ctrl_regs = rpm->status_regs + 0x400;582 rpm->req_regs = rpm->status_regs + 0x600;583 584 syscon_np = of_parse_phandle(pdev->dev.of_node, "qcom,ipc", 0);585 if (!syscon_np) {586 dev_err(&pdev->dev, "no qcom,ipc node\n");587 return -ENODEV;588 }589 590 rpm->ipc_regmap = syscon_node_to_regmap(syscon_np);591 of_node_put(syscon_np);592 if (IS_ERR(rpm->ipc_regmap))593 return PTR_ERR(rpm->ipc_regmap);594 595 ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 1,596 &rpm->ipc_offset);597 if (ret < 0) {598 dev_err(&pdev->dev, "no offset in qcom,ipc\n");599 return -EINVAL;600 }601 602 ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 2,603 &rpm->ipc_bit);604 if (ret < 0) {605 dev_err(&pdev->dev, "no bit in qcom,ipc\n");606 return -EINVAL;607 }608 609 dev_set_drvdata(&pdev->dev, rpm);610 611 fw_version[0] = readl(RPM_STATUS_REG(rpm, 0));612 fw_version[1] = readl(RPM_STATUS_REG(rpm, 1));613 fw_version[2] = readl(RPM_STATUS_REG(rpm, 2));614 if (fw_version[0] != rpm->data->version) {615 dev_err(&pdev->dev,616 "RPM version %u.%u.%u incompatible with driver version %u",617 fw_version[0],618 fw_version[1],619 fw_version[2],620 rpm->data->version);621 return -EFAULT;622 }623 624 writel(fw_version[0], RPM_CTRL_REG(rpm, 0));625 writel(fw_version[1], RPM_CTRL_REG(rpm, 1));626 writel(fw_version[2], RPM_CTRL_REG(rpm, 2));627 628 dev_info(&pdev->dev, "RPM firmware %u.%u.%u\n", fw_version[0],629 fw_version[1],630 fw_version[2]);631 632 ret = devm_request_irq(&pdev->dev,633 irq_ack,634 qcom_rpm_ack_interrupt,635 IRQF_TRIGGER_RISING,636 "qcom_rpm_ack",637 rpm);638 if (ret) {639 dev_err(&pdev->dev, "failed to request ack interrupt\n");640 return ret;641 }642 643 ret = irq_set_irq_wake(irq_ack, 1);644 if (ret)645 dev_warn(&pdev->dev, "failed to mark ack irq as wakeup\n");646 647 ret = devm_request_irq(&pdev->dev,648 irq_err,649 qcom_rpm_err_interrupt,650 IRQF_TRIGGER_RISING,651 "qcom_rpm_err",652 rpm);653 if (ret) {654 dev_err(&pdev->dev, "failed to request err interrupt\n");655 return ret;656 }657 658 ret = devm_request_irq(&pdev->dev,659 irq_wakeup,660 qcom_rpm_wakeup_interrupt,661 IRQF_TRIGGER_RISING,662 "qcom_rpm_wakeup",663 rpm);664 if (ret) {665 dev_err(&pdev->dev, "failed to request wakeup interrupt\n");666 return ret;667 }668 669 ret = irq_set_irq_wake(irq_wakeup, 1);670 if (ret)671 dev_warn(&pdev->dev, "failed to mark wakeup irq as wakeup\n");672 673 return devm_of_platform_populate(&pdev->dev);674}675 676static struct platform_driver qcom_rpm_driver = {677 .probe = qcom_rpm_probe,678 .driver = {679 .name = "qcom_rpm",680 .of_match_table = qcom_rpm_of_match,681 },682};683 684static int __init qcom_rpm_init(void)685{686 return platform_driver_register(&qcom_rpm_driver);687}688arch_initcall(qcom_rpm_init);689 690static void __exit qcom_rpm_exit(void)691{692 platform_driver_unregister(&qcom_rpm_driver);693}694module_exit(qcom_rpm_exit)695 696MODULE_DESCRIPTION("Qualcomm Resource Power Manager driver");697MODULE_LICENSE("GPL v2");698MODULE_AUTHOR("Bjorn Andersson <bjorn.andersson@sonymobile.com>");699