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58e21438 BA |
1 | /* |
2 | * Copyright (c) 2014, Sony Mobile Communications AB. | |
3 | * Copyright (c) 2013, The Linux Foundation. All rights reserved. | |
4 | * Author: Bjorn Andersson <bjorn.andersson@sonymobile.com> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License version 2 and | |
8 | * only version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | */ | |
15 | ||
16 | #include <linux/module.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/of_platform.h> | |
19 | #include <linux/io.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <linux/mfd/qcom_rpm.h> | |
22 | #include <linux/mfd/syscon.h> | |
23 | #include <linux/regmap.h> | |
24 | ||
25 | #include <dt-bindings/mfd/qcom-rpm.h> | |
26 | ||
27 | struct qcom_rpm_resource { | |
28 | unsigned target_id; | |
29 | unsigned status_id; | |
30 | unsigned select_id; | |
31 | unsigned size; | |
32 | }; | |
33 | ||
34 | struct qcom_rpm_data { | |
35 | u32 version; | |
36 | const struct qcom_rpm_resource *resource_table; | |
37 | unsigned n_resources; | |
38 | }; | |
39 | ||
40 | struct qcom_rpm { | |
41 | struct device *dev; | |
42 | struct regmap *ipc_regmap; | |
43 | unsigned ipc_offset; | |
44 | unsigned ipc_bit; | |
45 | ||
46 | struct completion ack; | |
47 | struct mutex lock; | |
48 | ||
49 | void __iomem *status_regs; | |
50 | void __iomem *ctrl_regs; | |
51 | void __iomem *req_regs; | |
52 | ||
53 | u32 ack_status; | |
54 | ||
55 | const struct qcom_rpm_data *data; | |
56 | }; | |
57 | ||
58 | #define RPM_STATUS_REG(rpm, i) ((rpm)->status_regs + (i) * 4) | |
59 | #define RPM_CTRL_REG(rpm, i) ((rpm)->ctrl_regs + (i) * 4) | |
60 | #define RPM_REQ_REG(rpm, i) ((rpm)->req_regs + (i) * 4) | |
61 | ||
62 | #define RPM_REQUEST_TIMEOUT (5 * HZ) | |
63 | ||
64 | #define RPM_REQUEST_CONTEXT 3 | |
65 | #define RPM_REQ_SELECT 11 | |
66 | #define RPM_ACK_CONTEXT 15 | |
67 | #define RPM_ACK_SELECTOR 23 | |
68 | #define RPM_SELECT_SIZE 7 | |
69 | ||
70 | #define RPM_NOTIFICATION BIT(30) | |
71 | #define RPM_REJECTED BIT(31) | |
72 | ||
73 | #define RPM_SIGNAL BIT(2) | |
74 | ||
75 | static const struct qcom_rpm_resource apq8064_rpm_resource_table[] = { | |
76 | [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, | |
77 | [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, | |
78 | [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, | |
79 | [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, | |
80 | [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 }, | |
81 | [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, | |
82 | [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, | |
83 | [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, | |
84 | [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 }, | |
85 | [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, | |
86 | [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 }, | |
87 | [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 }, | |
88 | [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, | |
89 | [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, | |
90 | [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 }, | |
91 | [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 }, | |
92 | [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, | |
93 | [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 }, | |
94 | [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 1 }, | |
95 | [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 1 }, | |
96 | [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 }, | |
97 | [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 21 }, | |
98 | [QCOM_RPM_PM8921_SMPS1] = { 116, 31, 30, 2 }, | |
99 | [QCOM_RPM_PM8921_SMPS2] = { 118, 33, 31, 2 }, | |
100 | [QCOM_RPM_PM8921_SMPS3] = { 120, 35, 32, 2 }, | |
101 | [QCOM_RPM_PM8921_SMPS4] = { 122, 37, 33, 2 }, | |
102 | [QCOM_RPM_PM8921_SMPS5] = { 124, 39, 34, 2 }, | |
103 | [QCOM_RPM_PM8921_SMPS6] = { 126, 41, 35, 2 }, | |
104 | [QCOM_RPM_PM8921_SMPS7] = { 128, 43, 36, 2 }, | |
105 | [QCOM_RPM_PM8921_SMPS8] = { 130, 45, 37, 2 }, | |
106 | [QCOM_RPM_PM8921_LDO1] = { 132, 47, 38, 2 }, | |
107 | [QCOM_RPM_PM8921_LDO2] = { 134, 49, 39, 2 }, | |
108 | [QCOM_RPM_PM8921_LDO3] = { 136, 51, 40, 2 }, | |
109 | [QCOM_RPM_PM8921_LDO4] = { 138, 53, 41, 2 }, | |
110 | [QCOM_RPM_PM8921_LDO5] = { 140, 55, 42, 2 }, | |
111 | [QCOM_RPM_PM8921_LDO6] = { 142, 57, 43, 2 }, | |
112 | [QCOM_RPM_PM8921_LDO7] = { 144, 59, 44, 2 }, | |
113 | [QCOM_RPM_PM8921_LDO8] = { 146, 61, 45, 2 }, | |
114 | [QCOM_RPM_PM8921_LDO9] = { 148, 63, 46, 2 }, | |
115 | [QCOM_RPM_PM8921_LDO10] = { 150, 65, 47, 2 }, | |
116 | [QCOM_RPM_PM8921_LDO11] = { 152, 67, 48, 2 }, | |
117 | [QCOM_RPM_PM8921_LDO12] = { 154, 69, 49, 2 }, | |
118 | [QCOM_RPM_PM8921_LDO13] = { 156, 71, 50, 2 }, | |
119 | [QCOM_RPM_PM8921_LDO14] = { 158, 73, 51, 2 }, | |
120 | [QCOM_RPM_PM8921_LDO15] = { 160, 75, 52, 2 }, | |
121 | [QCOM_RPM_PM8921_LDO16] = { 162, 77, 53, 2 }, | |
122 | [QCOM_RPM_PM8921_LDO17] = { 164, 79, 54, 2 }, | |
123 | [QCOM_RPM_PM8921_LDO18] = { 166, 81, 55, 2 }, | |
124 | [QCOM_RPM_PM8921_LDO19] = { 168, 83, 56, 2 }, | |
125 | [QCOM_RPM_PM8921_LDO20] = { 170, 85, 57, 2 }, | |
126 | [QCOM_RPM_PM8921_LDO21] = { 172, 87, 58, 2 }, | |
127 | [QCOM_RPM_PM8921_LDO22] = { 174, 89, 59, 2 }, | |
128 | [QCOM_RPM_PM8921_LDO23] = { 176, 91, 60, 2 }, | |
129 | [QCOM_RPM_PM8921_LDO24] = { 178, 93, 61, 2 }, | |
130 | [QCOM_RPM_PM8921_LDO25] = { 180, 95, 62, 2 }, | |
131 | [QCOM_RPM_PM8921_LDO26] = { 182, 97, 63, 2 }, | |
132 | [QCOM_RPM_PM8921_LDO27] = { 184, 99, 64, 2 }, | |
133 | [QCOM_RPM_PM8921_LDO28] = { 186, 101, 65, 2 }, | |
134 | [QCOM_RPM_PM8921_LDO29] = { 188, 103, 66, 2 }, | |
135 | [QCOM_RPM_PM8921_CLK1] = { 190, 105, 67, 2 }, | |
136 | [QCOM_RPM_PM8921_CLK2] = { 192, 107, 68, 2 }, | |
137 | [QCOM_RPM_PM8921_LVS1] = { 194, 109, 69, 1 }, | |
138 | [QCOM_RPM_PM8921_LVS2] = { 195, 110, 70, 1 }, | |
139 | [QCOM_RPM_PM8921_LVS3] = { 196, 111, 71, 1 }, | |
140 | [QCOM_RPM_PM8921_LVS4] = { 197, 112, 72, 1 }, | |
141 | [QCOM_RPM_PM8921_LVS5] = { 198, 113, 73, 1 }, | |
142 | [QCOM_RPM_PM8921_LVS6] = { 199, 114, 74, 1 }, | |
143 | [QCOM_RPM_PM8921_LVS7] = { 200, 115, 75, 1 }, | |
144 | [QCOM_RPM_PM8821_SMPS1] = { 201, 116, 76, 2 }, | |
145 | [QCOM_RPM_PM8821_SMPS2] = { 203, 118, 77, 2 }, | |
146 | [QCOM_RPM_PM8821_LDO1] = { 205, 120, 78, 2 }, | |
147 | [QCOM_RPM_PM8921_NCP] = { 207, 122, 80, 2 }, | |
148 | [QCOM_RPM_CXO_BUFFERS] = { 209, 124, 81, 1 }, | |
149 | [QCOM_RPM_USB_OTG_SWITCH] = { 210, 125, 82, 1 }, | |
150 | [QCOM_RPM_HDMI_SWITCH] = { 211, 126, 83, 1 }, | |
151 | [QCOM_RPM_DDR_DMM] = { 212, 127, 84, 2 }, | |
51d0eb81 | 152 | [QCOM_RPM_QDSS_CLK] = { 214, ~0, 7, 1 }, |
58e21438 BA |
153 | [QCOM_RPM_VDDMIN_GPIO] = { 215, 131, 89, 1 }, |
154 | }; | |
155 | ||
156 | static const struct qcom_rpm_data apq8064_template = { | |
157 | .version = 3, | |
158 | .resource_table = apq8064_rpm_resource_table, | |
159 | .n_resources = ARRAY_SIZE(apq8064_rpm_resource_table), | |
160 | }; | |
161 | ||
162 | static const struct qcom_rpm_resource msm8660_rpm_resource_table[] = { | |
163 | [QCOM_RPM_CXO_CLK] = { 32, 12, 5, 1 }, | |
164 | [QCOM_RPM_PXO_CLK] = { 33, 13, 6, 1 }, | |
165 | [QCOM_RPM_PLL_4] = { 34, 14, 7, 1 }, | |
166 | [QCOM_RPM_APPS_FABRIC_CLK] = { 35, 15, 8, 1 }, | |
167 | [QCOM_RPM_SYS_FABRIC_CLK] = { 36, 16, 9, 1 }, | |
168 | [QCOM_RPM_MM_FABRIC_CLK] = { 37, 17, 10, 1 }, | |
169 | [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 38, 18, 11, 1 }, | |
170 | [QCOM_RPM_SFPB_CLK] = { 39, 19, 12, 1 }, | |
171 | [QCOM_RPM_CFPB_CLK] = { 40, 20, 13, 1 }, | |
172 | [QCOM_RPM_MMFPB_CLK] = { 41, 21, 14, 1 }, | |
173 | [QCOM_RPM_SMI_CLK] = { 42, 22, 15, 1 }, | |
174 | [QCOM_RPM_EBI1_CLK] = { 43, 23, 16, 1 }, | |
175 | [QCOM_RPM_APPS_L2_CACHE_CTL] = { 44, 24, 17, 1 }, | |
176 | [QCOM_RPM_APPS_FABRIC_HALT] = { 45, 25, 18, 2 }, | |
177 | [QCOM_RPM_APPS_FABRIC_MODE] = { 47, 26, 19, 3 }, | |
178 | [QCOM_RPM_APPS_FABRIC_ARB] = { 51, 28, 21, 6 }, | |
179 | [QCOM_RPM_SYS_FABRIC_HALT] = { 63, 29, 22, 2 }, | |
180 | [QCOM_RPM_SYS_FABRIC_MODE] = { 65, 30, 23, 3 }, | |
181 | [QCOM_RPM_SYS_FABRIC_ARB] = { 69, 32, 25, 22 }, | |
182 | [QCOM_RPM_MM_FABRIC_HALT] = { 105, 33, 26, 2 }, | |
183 | [QCOM_RPM_MM_FABRIC_MODE] = { 107, 34, 27, 3 }, | |
184 | [QCOM_RPM_MM_FABRIC_ARB] = { 111, 36, 29, 23 }, | |
185 | [QCOM_RPM_PM8901_SMPS0] = { 134, 37, 30, 2 }, | |
186 | [QCOM_RPM_PM8901_SMPS1] = { 136, 39, 31, 2 }, | |
187 | [QCOM_RPM_PM8901_SMPS2] = { 138, 41, 32, 2 }, | |
188 | [QCOM_RPM_PM8901_SMPS3] = { 140, 43, 33, 2 }, | |
189 | [QCOM_RPM_PM8901_SMPS4] = { 142, 45, 34, 2 }, | |
190 | [QCOM_RPM_PM8901_LDO0] = { 144, 47, 35, 2 }, | |
191 | [QCOM_RPM_PM8901_LDO1] = { 146, 49, 36, 2 }, | |
192 | [QCOM_RPM_PM8901_LDO2] = { 148, 51, 37, 2 }, | |
193 | [QCOM_RPM_PM8901_LDO3] = { 150, 53, 38, 2 }, | |
194 | [QCOM_RPM_PM8901_LDO4] = { 152, 55, 39, 2 }, | |
195 | [QCOM_RPM_PM8901_LDO5] = { 154, 57, 40, 2 }, | |
196 | [QCOM_RPM_PM8901_LDO6] = { 156, 59, 41, 2 }, | |
197 | [QCOM_RPM_PM8901_LVS0] = { 158, 61, 42, 1 }, | |
198 | [QCOM_RPM_PM8901_LVS1] = { 159, 62, 43, 1 }, | |
199 | [QCOM_RPM_PM8901_LVS2] = { 160, 63, 44, 1 }, | |
200 | [QCOM_RPM_PM8901_LVS3] = { 161, 64, 45, 1 }, | |
201 | [QCOM_RPM_PM8901_MVS] = { 162, 65, 46, 1 }, | |
202 | [QCOM_RPM_PM8058_SMPS0] = { 163, 66, 47, 2 }, | |
203 | [QCOM_RPM_PM8058_SMPS1] = { 165, 68, 48, 2 }, | |
204 | [QCOM_RPM_PM8058_SMPS2] = { 167, 70, 49, 2 }, | |
205 | [QCOM_RPM_PM8058_SMPS3] = { 169, 72, 50, 2 }, | |
206 | [QCOM_RPM_PM8058_SMPS4] = { 171, 74, 51, 2 }, | |
207 | [QCOM_RPM_PM8058_LDO0] = { 173, 76, 52, 2 }, | |
208 | [QCOM_RPM_PM8058_LDO1] = { 175, 78, 53, 2 }, | |
209 | [QCOM_RPM_PM8058_LDO2] = { 177, 80, 54, 2 }, | |
210 | [QCOM_RPM_PM8058_LDO3] = { 179, 82, 55, 2 }, | |
211 | [QCOM_RPM_PM8058_LDO4] = { 181, 84, 56, 2 }, | |
212 | [QCOM_RPM_PM8058_LDO5] = { 183, 86, 57, 2 }, | |
213 | [QCOM_RPM_PM8058_LDO6] = { 185, 88, 58, 2 }, | |
214 | [QCOM_RPM_PM8058_LDO7] = { 187, 90, 59, 2 }, | |
215 | [QCOM_RPM_PM8058_LDO8] = { 189, 92, 60, 2 }, | |
216 | [QCOM_RPM_PM8058_LDO9] = { 191, 94, 61, 2 }, | |
217 | [QCOM_RPM_PM8058_LDO10] = { 193, 96, 62, 2 }, | |
218 | [QCOM_RPM_PM8058_LDO11] = { 195, 98, 63, 2 }, | |
219 | [QCOM_RPM_PM8058_LDO12] = { 197, 100, 64, 2 }, | |
220 | [QCOM_RPM_PM8058_LDO13] = { 199, 102, 65, 2 }, | |
221 | [QCOM_RPM_PM8058_LDO14] = { 201, 104, 66, 2 }, | |
222 | [QCOM_RPM_PM8058_LDO15] = { 203, 106, 67, 2 }, | |
223 | [QCOM_RPM_PM8058_LDO16] = { 205, 108, 68, 2 }, | |
224 | [QCOM_RPM_PM8058_LDO17] = { 207, 110, 69, 2 }, | |
225 | [QCOM_RPM_PM8058_LDO18] = { 209, 112, 70, 2 }, | |
226 | [QCOM_RPM_PM8058_LDO19] = { 211, 114, 71, 2 }, | |
227 | [QCOM_RPM_PM8058_LDO20] = { 213, 116, 72, 2 }, | |
228 | [QCOM_RPM_PM8058_LDO21] = { 215, 118, 73, 2 }, | |
229 | [QCOM_RPM_PM8058_LDO22] = { 217, 120, 74, 2 }, | |
230 | [QCOM_RPM_PM8058_LDO23] = { 219, 122, 75, 2 }, | |
231 | [QCOM_RPM_PM8058_LDO24] = { 221, 124, 76, 2 }, | |
232 | [QCOM_RPM_PM8058_LDO25] = { 223, 126, 77, 2 }, | |
233 | [QCOM_RPM_PM8058_LVS0] = { 225, 128, 78, 1 }, | |
234 | [QCOM_RPM_PM8058_LVS1] = { 226, 129, 79, 1 }, | |
235 | [QCOM_RPM_PM8058_NCP] = { 227, 130, 80, 2 }, | |
236 | [QCOM_RPM_CXO_BUFFERS] = { 229, 132, 81, 1 }, | |
237 | }; | |
238 | ||
239 | static const struct qcom_rpm_data msm8660_template = { | |
240 | .version = 2, | |
241 | .resource_table = msm8660_rpm_resource_table, | |
242 | .n_resources = ARRAY_SIZE(msm8660_rpm_resource_table), | |
243 | }; | |
244 | ||
245 | static const struct qcom_rpm_resource msm8960_rpm_resource_table[] = { | |
246 | [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, | |
247 | [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, | |
248 | [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, | |
249 | [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, | |
250 | [QCOM_RPM_MM_FABRIC_CLK] = { 29, 13, 10, 1 }, | |
251 | [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, | |
252 | [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, | |
253 | [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, | |
254 | [QCOM_RPM_MMFPB_CLK] = { 33, 17, 14, 1 }, | |
255 | [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, | |
256 | [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 1 }, | |
257 | [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 1 }, | |
258 | [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, | |
259 | [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, | |
260 | [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 1 }, | |
261 | [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 1 }, | |
262 | [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, | |
263 | [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 29 }, | |
264 | [QCOM_RPM_MM_FABRIC_HALT] = { 88, 27, 26, 1 }, | |
265 | [QCOM_RPM_MM_FABRIC_MODE] = { 90, 28, 27, 1 }, | |
266 | [QCOM_RPM_MM_FABRIC_IOCTL] = { 93, 29, 28, 1 }, | |
267 | [QCOM_RPM_MM_FABRIC_ARB] = { 94, 30, 29, 23 }, | |
268 | [QCOM_RPM_PM8921_SMPS1] = { 117, 31, 30, 2 }, | |
269 | [QCOM_RPM_PM8921_SMPS2] = { 119, 33, 31, 2 }, | |
270 | [QCOM_RPM_PM8921_SMPS3] = { 121, 35, 32, 2 }, | |
271 | [QCOM_RPM_PM8921_SMPS4] = { 123, 37, 33, 2 }, | |
272 | [QCOM_RPM_PM8921_SMPS5] = { 125, 39, 34, 2 }, | |
273 | [QCOM_RPM_PM8921_SMPS6] = { 127, 41, 35, 2 }, | |
274 | [QCOM_RPM_PM8921_SMPS7] = { 129, 43, 36, 2 }, | |
275 | [QCOM_RPM_PM8921_SMPS8] = { 131, 45, 37, 2 }, | |
276 | [QCOM_RPM_PM8921_LDO1] = { 133, 47, 38, 2 }, | |
277 | [QCOM_RPM_PM8921_LDO2] = { 135, 49, 39, 2 }, | |
278 | [QCOM_RPM_PM8921_LDO3] = { 137, 51, 40, 2 }, | |
279 | [QCOM_RPM_PM8921_LDO4] = { 139, 53, 41, 2 }, | |
280 | [QCOM_RPM_PM8921_LDO5] = { 141, 55, 42, 2 }, | |
281 | [QCOM_RPM_PM8921_LDO6] = { 143, 57, 43, 2 }, | |
282 | [QCOM_RPM_PM8921_LDO7] = { 145, 59, 44, 2 }, | |
283 | [QCOM_RPM_PM8921_LDO8] = { 147, 61, 45, 2 }, | |
284 | [QCOM_RPM_PM8921_LDO9] = { 149, 63, 46, 2 }, | |
285 | [QCOM_RPM_PM8921_LDO10] = { 151, 65, 47, 2 }, | |
286 | [QCOM_RPM_PM8921_LDO11] = { 153, 67, 48, 2 }, | |
287 | [QCOM_RPM_PM8921_LDO12] = { 155, 69, 49, 2 }, | |
288 | [QCOM_RPM_PM8921_LDO13] = { 157, 71, 50, 2 }, | |
289 | [QCOM_RPM_PM8921_LDO14] = { 159, 73, 51, 2 }, | |
290 | [QCOM_RPM_PM8921_LDO15] = { 161, 75, 52, 2 }, | |
291 | [QCOM_RPM_PM8921_LDO16] = { 163, 77, 53, 2 }, | |
292 | [QCOM_RPM_PM8921_LDO17] = { 165, 79, 54, 2 }, | |
293 | [QCOM_RPM_PM8921_LDO18] = { 167, 81, 55, 2 }, | |
294 | [QCOM_RPM_PM8921_LDO19] = { 169, 83, 56, 2 }, | |
295 | [QCOM_RPM_PM8921_LDO20] = { 171, 85, 57, 2 }, | |
296 | [QCOM_RPM_PM8921_LDO21] = { 173, 87, 58, 2 }, | |
297 | [QCOM_RPM_PM8921_LDO22] = { 175, 89, 59, 2 }, | |
298 | [QCOM_RPM_PM8921_LDO23] = { 177, 91, 60, 2 }, | |
299 | [QCOM_RPM_PM8921_LDO24] = { 179, 93, 61, 2 }, | |
300 | [QCOM_RPM_PM8921_LDO25] = { 181, 95, 62, 2 }, | |
301 | [QCOM_RPM_PM8921_LDO26] = { 183, 97, 63, 2 }, | |
302 | [QCOM_RPM_PM8921_LDO27] = { 185, 99, 64, 2 }, | |
303 | [QCOM_RPM_PM8921_LDO28] = { 187, 101, 65, 2 }, | |
304 | [QCOM_RPM_PM8921_LDO29] = { 189, 103, 66, 2 }, | |
305 | [QCOM_RPM_PM8921_CLK1] = { 191, 105, 67, 2 }, | |
306 | [QCOM_RPM_PM8921_CLK2] = { 193, 107, 68, 2 }, | |
307 | [QCOM_RPM_PM8921_LVS1] = { 195, 109, 69, 1 }, | |
308 | [QCOM_RPM_PM8921_LVS2] = { 196, 110, 70, 1 }, | |
309 | [QCOM_RPM_PM8921_LVS3] = { 197, 111, 71, 1 }, | |
310 | [QCOM_RPM_PM8921_LVS4] = { 198, 112, 72, 1 }, | |
311 | [QCOM_RPM_PM8921_LVS5] = { 199, 113, 73, 1 }, | |
312 | [QCOM_RPM_PM8921_LVS6] = { 200, 114, 74, 1 }, | |
313 | [QCOM_RPM_PM8921_LVS7] = { 201, 115, 75, 1 }, | |
314 | [QCOM_RPM_PM8921_NCP] = { 202, 116, 80, 2 }, | |
315 | [QCOM_RPM_CXO_BUFFERS] = { 204, 118, 81, 1 }, | |
316 | [QCOM_RPM_USB_OTG_SWITCH] = { 205, 119, 82, 1 }, | |
317 | [QCOM_RPM_HDMI_SWITCH] = { 206, 120, 83, 1 }, | |
318 | [QCOM_RPM_DDR_DMM] = { 207, 121, 84, 2 }, | |
319 | }; | |
320 | ||
321 | static const struct qcom_rpm_data msm8960_template = { | |
322 | .version = 3, | |
323 | .resource_table = msm8960_rpm_resource_table, | |
324 | .n_resources = ARRAY_SIZE(msm8960_rpm_resource_table), | |
325 | }; | |
326 | ||
4d54b0ad JC |
327 | static const struct qcom_rpm_resource ipq806x_rpm_resource_table[] = { |
328 | [QCOM_RPM_CXO_CLK] = { 25, 9, 5, 1 }, | |
329 | [QCOM_RPM_PXO_CLK] = { 26, 10, 6, 1 }, | |
330 | [QCOM_RPM_APPS_FABRIC_CLK] = { 27, 11, 8, 1 }, | |
331 | [QCOM_RPM_SYS_FABRIC_CLK] = { 28, 12, 9, 1 }, | |
332 | [QCOM_RPM_NSS_FABRIC_0_CLK] = { 29, 13, 10, 1 }, | |
333 | [QCOM_RPM_DAYTONA_FABRIC_CLK] = { 30, 14, 11, 1 }, | |
334 | [QCOM_RPM_SFPB_CLK] = { 31, 15, 12, 1 }, | |
335 | [QCOM_RPM_CFPB_CLK] = { 32, 16, 13, 1 }, | |
336 | [QCOM_RPM_NSS_FABRIC_1_CLK] = { 33, 17, 14, 1 }, | |
337 | [QCOM_RPM_EBI1_CLK] = { 34, 18, 16, 1 }, | |
338 | [QCOM_RPM_APPS_FABRIC_HALT] = { 35, 19, 18, 2 }, | |
339 | [QCOM_RPM_APPS_FABRIC_MODE] = { 37, 20, 19, 3 }, | |
340 | [QCOM_RPM_APPS_FABRIC_IOCTL] = { 40, 21, 20, 1 }, | |
341 | [QCOM_RPM_APPS_FABRIC_ARB] = { 41, 22, 21, 12 }, | |
342 | [QCOM_RPM_SYS_FABRIC_HALT] = { 53, 23, 22, 2 }, | |
343 | [QCOM_RPM_SYS_FABRIC_MODE] = { 55, 24, 23, 3 }, | |
344 | [QCOM_RPM_SYS_FABRIC_IOCTL] = { 58, 25, 24, 1 }, | |
345 | [QCOM_RPM_SYS_FABRIC_ARB] = { 59, 26, 25, 30 }, | |
346 | [QCOM_RPM_MM_FABRIC_HALT] = { 89, 27, 26, 2 }, | |
347 | [QCOM_RPM_MM_FABRIC_MODE] = { 91, 28, 27, 3 }, | |
348 | [QCOM_RPM_MM_FABRIC_IOCTL] = { 94, 29, 28, 1 }, | |
349 | [QCOM_RPM_MM_FABRIC_ARB] = { 95, 30, 29, 2 }, | |
350 | [QCOM_RPM_CXO_BUFFERS] = { 209, 33, 31, 1 }, | |
351 | [QCOM_RPM_USB_OTG_SWITCH] = { 210, 34, 32, 1 }, | |
352 | [QCOM_RPM_HDMI_SWITCH] = { 211, 35, 33, 1 }, | |
353 | [QCOM_RPM_DDR_DMM] = { 212, 36, 34, 2 }, | |
354 | [QCOM_RPM_VDDMIN_GPIO] = { 215, 40, 39, 1 }, | |
355 | [QCOM_RPM_SMB208_S1a] = { 216, 41, 90, 2 }, | |
356 | [QCOM_RPM_SMB208_S1b] = { 218, 43, 91, 2 }, | |
357 | [QCOM_RPM_SMB208_S2a] = { 220, 45, 92, 2 }, | |
358 | [QCOM_RPM_SMB208_S2b] = { 222, 47, 93, 2 }, | |
359 | }; | |
360 | ||
361 | static const struct qcom_rpm_data ipq806x_template = { | |
362 | .version = 3, | |
363 | .resource_table = ipq806x_rpm_resource_table, | |
364 | .n_resources = ARRAY_SIZE(ipq806x_rpm_resource_table), | |
365 | }; | |
366 | ||
58e21438 BA |
367 | static const struct of_device_id qcom_rpm_of_match[] = { |
368 | { .compatible = "qcom,rpm-apq8064", .data = &apq8064_template }, | |
369 | { .compatible = "qcom,rpm-msm8660", .data = &msm8660_template }, | |
370 | { .compatible = "qcom,rpm-msm8960", .data = &msm8960_template }, | |
4d54b0ad | 371 | { .compatible = "qcom,rpm-ipq8064", .data = &ipq806x_template }, |
58e21438 BA |
372 | { } |
373 | }; | |
374 | MODULE_DEVICE_TABLE(of, qcom_rpm_of_match); | |
375 | ||
376 | int qcom_rpm_write(struct qcom_rpm *rpm, | |
377 | int state, | |
378 | int resource, | |
379 | u32 *buf, size_t count) | |
380 | { | |
381 | const struct qcom_rpm_resource *res; | |
382 | const struct qcom_rpm_data *data = rpm->data; | |
383 | u32 sel_mask[RPM_SELECT_SIZE] = { 0 }; | |
384 | int left; | |
385 | int ret = 0; | |
386 | int i; | |
387 | ||
388 | if (WARN_ON(resource < 0 || resource >= data->n_resources)) | |
389 | return -EINVAL; | |
390 | ||
391 | res = &data->resource_table[resource]; | |
392 | if (WARN_ON(res->size != count)) | |
393 | return -EINVAL; | |
394 | ||
395 | mutex_lock(&rpm->lock); | |
396 | ||
397 | for (i = 0; i < res->size; i++) | |
398 | writel_relaxed(buf[i], RPM_REQ_REG(rpm, res->target_id + i)); | |
399 | ||
400 | bitmap_set((unsigned long *)sel_mask, res->select_id, 1); | |
401 | for (i = 0; i < ARRAY_SIZE(sel_mask); i++) { | |
402 | writel_relaxed(sel_mask[i], | |
403 | RPM_CTRL_REG(rpm, RPM_REQ_SELECT + i)); | |
404 | } | |
405 | ||
406 | writel_relaxed(BIT(state), RPM_CTRL_REG(rpm, RPM_REQUEST_CONTEXT)); | |
407 | ||
408 | reinit_completion(&rpm->ack); | |
409 | regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); | |
410 | ||
411 | left = wait_for_completion_timeout(&rpm->ack, RPM_REQUEST_TIMEOUT); | |
412 | if (!left) | |
413 | ret = -ETIMEDOUT; | |
414 | else if (rpm->ack_status & RPM_REJECTED) | |
415 | ret = -EIO; | |
416 | ||
417 | mutex_unlock(&rpm->lock); | |
418 | ||
419 | return ret; | |
420 | } | |
421 | EXPORT_SYMBOL(qcom_rpm_write); | |
422 | ||
423 | static irqreturn_t qcom_rpm_ack_interrupt(int irq, void *dev) | |
424 | { | |
425 | struct qcom_rpm *rpm = dev; | |
426 | u32 ack; | |
427 | int i; | |
428 | ||
429 | ack = readl_relaxed(RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); | |
430 | for (i = 0; i < RPM_SELECT_SIZE; i++) | |
431 | writel_relaxed(0, RPM_CTRL_REG(rpm, RPM_ACK_SELECTOR + i)); | |
432 | writel(0, RPM_CTRL_REG(rpm, RPM_ACK_CONTEXT)); | |
433 | ||
434 | if (ack & RPM_NOTIFICATION) { | |
435 | dev_warn(rpm->dev, "ignoring notification!\n"); | |
436 | } else { | |
437 | rpm->ack_status = ack; | |
438 | complete(&rpm->ack); | |
439 | } | |
440 | ||
441 | return IRQ_HANDLED; | |
442 | } | |
443 | ||
444 | static irqreturn_t qcom_rpm_err_interrupt(int irq, void *dev) | |
445 | { | |
446 | struct qcom_rpm *rpm = dev; | |
447 | ||
448 | regmap_write(rpm->ipc_regmap, rpm->ipc_offset, BIT(rpm->ipc_bit)); | |
449 | dev_err(rpm->dev, "RPM triggered fatal error\n"); | |
450 | ||
451 | return IRQ_HANDLED; | |
452 | } | |
453 | ||
454 | static irqreturn_t qcom_rpm_wakeup_interrupt(int irq, void *dev) | |
455 | { | |
456 | return IRQ_HANDLED; | |
457 | } | |
458 | ||
459 | static int qcom_rpm_probe(struct platform_device *pdev) | |
460 | { | |
461 | const struct of_device_id *match; | |
462 | struct device_node *syscon_np; | |
463 | struct resource *res; | |
464 | struct qcom_rpm *rpm; | |
465 | u32 fw_version[3]; | |
466 | int irq_wakeup; | |
467 | int irq_ack; | |
468 | int irq_err; | |
469 | int ret; | |
470 | ||
471 | rpm = devm_kzalloc(&pdev->dev, sizeof(*rpm), GFP_KERNEL); | |
472 | if (!rpm) | |
473 | return -ENOMEM; | |
474 | ||
475 | rpm->dev = &pdev->dev; | |
476 | mutex_init(&rpm->lock); | |
477 | init_completion(&rpm->ack); | |
478 | ||
479 | irq_ack = platform_get_irq_byname(pdev, "ack"); | |
480 | if (irq_ack < 0) { | |
481 | dev_err(&pdev->dev, "required ack interrupt missing\n"); | |
482 | return irq_ack; | |
483 | } | |
484 | ||
485 | irq_err = platform_get_irq_byname(pdev, "err"); | |
486 | if (irq_err < 0) { | |
487 | dev_err(&pdev->dev, "required err interrupt missing\n"); | |
488 | return irq_err; | |
489 | } | |
490 | ||
491 | irq_wakeup = platform_get_irq_byname(pdev, "wakeup"); | |
492 | if (irq_wakeup < 0) { | |
493 | dev_err(&pdev->dev, "required wakeup interrupt missing\n"); | |
494 | return irq_wakeup; | |
495 | } | |
496 | ||
497 | match = of_match_device(qcom_rpm_of_match, &pdev->dev); | |
cf1199f7 LC |
498 | if (!match) |
499 | return -ENODEV; | |
58e21438 BA |
500 | rpm->data = match->data; |
501 | ||
502 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
503 | rpm->status_regs = devm_ioremap_resource(&pdev->dev, res); | |
504 | if (IS_ERR(rpm->status_regs)) | |
505 | return PTR_ERR(rpm->status_regs); | |
506 | rpm->ctrl_regs = rpm->status_regs + 0x400; | |
507 | rpm->req_regs = rpm->status_regs + 0x600; | |
508 | ||
509 | syscon_np = of_parse_phandle(pdev->dev.of_node, "qcom,ipc", 0); | |
510 | if (!syscon_np) { | |
511 | dev_err(&pdev->dev, "no qcom,ipc node\n"); | |
512 | return -ENODEV; | |
513 | } | |
514 | ||
515 | rpm->ipc_regmap = syscon_node_to_regmap(syscon_np); | |
516 | if (IS_ERR(rpm->ipc_regmap)) | |
517 | return PTR_ERR(rpm->ipc_regmap); | |
518 | ||
519 | ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 1, | |
520 | &rpm->ipc_offset); | |
521 | if (ret < 0) { | |
522 | dev_err(&pdev->dev, "no offset in qcom,ipc\n"); | |
523 | return -EINVAL; | |
524 | } | |
525 | ||
526 | ret = of_property_read_u32_index(pdev->dev.of_node, "qcom,ipc", 2, | |
527 | &rpm->ipc_bit); | |
528 | if (ret < 0) { | |
529 | dev_err(&pdev->dev, "no bit in qcom,ipc\n"); | |
530 | return -EINVAL; | |
531 | } | |
532 | ||
533 | dev_set_drvdata(&pdev->dev, rpm); | |
534 | ||
535 | fw_version[0] = readl(RPM_STATUS_REG(rpm, 0)); | |
536 | fw_version[1] = readl(RPM_STATUS_REG(rpm, 1)); | |
537 | fw_version[2] = readl(RPM_STATUS_REG(rpm, 2)); | |
538 | if (fw_version[0] != rpm->data->version) { | |
539 | dev_err(&pdev->dev, | |
540 | "RPM version %u.%u.%u incompatible with driver version %u", | |
541 | fw_version[0], | |
542 | fw_version[1], | |
543 | fw_version[2], | |
544 | rpm->data->version); | |
545 | return -EFAULT; | |
546 | } | |
547 | ||
548 | dev_info(&pdev->dev, "RPM firmware %u.%u.%u\n", fw_version[0], | |
549 | fw_version[1], | |
550 | fw_version[2]); | |
551 | ||
552 | ret = devm_request_irq(&pdev->dev, | |
553 | irq_ack, | |
554 | qcom_rpm_ack_interrupt, | |
ced7e093 | 555 | IRQF_TRIGGER_RISING, |
58e21438 BA |
556 | "qcom_rpm_ack", |
557 | rpm); | |
558 | if (ret) { | |
559 | dev_err(&pdev->dev, "failed to request ack interrupt\n"); | |
560 | return ret; | |
561 | } | |
562 | ||
563 | ret = irq_set_irq_wake(irq_ack, 1); | |
564 | if (ret) | |
565 | dev_warn(&pdev->dev, "failed to mark ack irq as wakeup\n"); | |
566 | ||
567 | ret = devm_request_irq(&pdev->dev, | |
568 | irq_err, | |
569 | qcom_rpm_err_interrupt, | |
570 | IRQF_TRIGGER_RISING, | |
571 | "qcom_rpm_err", | |
572 | rpm); | |
573 | if (ret) { | |
574 | dev_err(&pdev->dev, "failed to request err interrupt\n"); | |
575 | return ret; | |
576 | } | |
577 | ||
578 | ret = devm_request_irq(&pdev->dev, | |
579 | irq_wakeup, | |
580 | qcom_rpm_wakeup_interrupt, | |
581 | IRQF_TRIGGER_RISING, | |
582 | "qcom_rpm_wakeup", | |
583 | rpm); | |
584 | if (ret) { | |
585 | dev_err(&pdev->dev, "failed to request wakeup interrupt\n"); | |
586 | return ret; | |
587 | } | |
588 | ||
589 | ret = irq_set_irq_wake(irq_wakeup, 1); | |
590 | if (ret) | |
591 | dev_warn(&pdev->dev, "failed to mark wakeup irq as wakeup\n"); | |
592 | ||
593 | return of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev); | |
594 | } | |
595 | ||
596 | static int qcom_rpm_remove(struct platform_device *pdev) | |
597 | { | |
598 | of_platform_depopulate(&pdev->dev); | |
599 | return 0; | |
600 | } | |
601 | ||
602 | static struct platform_driver qcom_rpm_driver = { | |
603 | .probe = qcom_rpm_probe, | |
604 | .remove = qcom_rpm_remove, | |
605 | .driver = { | |
606 | .name = "qcom_rpm", | |
607 | .of_match_table = qcom_rpm_of_match, | |
608 | }, | |
609 | }; | |
610 | ||
611 | static int __init qcom_rpm_init(void) | |
612 | { | |
613 | return platform_driver_register(&qcom_rpm_driver); | |
614 | } | |
615 | arch_initcall(qcom_rpm_init); | |
616 | ||
617 | static void __exit qcom_rpm_exit(void) | |
618 | { | |
619 | platform_driver_unregister(&qcom_rpm_driver); | |
620 | } | |
621 | module_exit(qcom_rpm_exit) | |
622 | ||
623 | MODULE_DESCRIPTION("Qualcomm Resource Power Manager driver"); | |
624 | MODULE_LICENSE("GPL v2"); | |
625 | MODULE_AUTHOR("Bjorn Andersson <bjorn.andersson@sonymobile.com>"); |