1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
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 | |
22 | struct qcom_rpm_resource { |
23 | unsigned target_id; |
24 | unsigned status_id; |
25 | unsigned select_id; |
26 | unsigned size; |
27 | }; |
28 | |
29 | struct 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 | |
41 | struct 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 7 |
67 | |
68 | #define RPM_NOTIFICATION BIT(30) |
69 | #define RPM_REJECTED BIT(31) |
70 | |
71 | static 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 | |
152 | static 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 | |
164 | static 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 | |
241 | static 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 | |
253 | static 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 | |
329 | static 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 | |
341 | static 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 | |
375 | static 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 | |
387 | static 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 | |
425 | static 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 | |
437 | static 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 | }; |
445 | MODULE_DEVICE_TABLE(of, qcom_rpm_of_match); |
446 | |
447 | int 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(map: (unsigned long *)sel_mask, start: res->select_id, nbits: 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(x: &rpm->ack); |
480 | regmap_write(map: rpm->ipc_regmap, reg: rpm->ipc_offset, BIT(rpm->ipc_bit)); |
481 | |
482 | left = wait_for_completion_timeout(x: &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(lock: &rpm->lock); |
489 | |
490 | return ret; |
491 | } |
492 | EXPORT_SYMBOL(qcom_rpm_write); |
493 | |
494 | static 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(val: 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 | |
516 | static irqreturn_t qcom_rpm_err_interrupt(int irq, void *dev) |
517 | { |
518 | struct qcom_rpm *rpm = dev; |
519 | |
520 | regmap_write(map: rpm->ipc_regmap, reg: rpm->ipc_offset, BIT(rpm->ipc_bit)); |
521 | dev_err(rpm->dev, "RPM triggered fatal error\n" ); |
522 | |
523 | return IRQ_HANDLED; |
524 | } |
525 | |
526 | static irqreturn_t qcom_rpm_wakeup_interrupt(int irq, void *dev) |
527 | { |
528 | return IRQ_HANDLED; |
529 | } |
530 | |
531 | static 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(dev: &pdev->dev, size: sizeof(*rpm), GFP_KERNEL); |
542 | if (!rpm) |
543 | return -ENOMEM; |
544 | |
545 | rpm->dev = &pdev->dev; |
546 | mutex_init(&rpm->lock); |
547 | init_completion(x: &rpm->ack); |
548 | |
549 | /* Enable message RAM clock */ |
550 | rpm->ramclk = devm_clk_get_enabled(dev: &pdev->dev, id: "ram" ); |
551 | if (IS_ERR(ptr: rpm->ramclk)) { |
552 | ret = PTR_ERR(ptr: rpm->ramclk); |
553 | if (ret == -EPROBE_DEFER) |
554 | return ret; |
555 | /* |
556 | * Fall through in all other cases, as the clock is |
557 | * 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(dev: &pdev->dev); |
575 | if (!rpm->data) |
576 | return -ENODEV; |
577 | |
578 | rpm->status_regs = devm_platform_get_and_ioremap_resource(pdev, index: 0, NULL); |
579 | if (IS_ERR(ptr: rpm->status_regs)) |
580 | return PTR_ERR(ptr: 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(np: pdev->dev.of_node, phandle_name: "qcom,ipc" , index: 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(np: syscon_np); |
591 | of_node_put(node: syscon_np); |
592 | if (IS_ERR(ptr: rpm->ipc_regmap)) |
593 | return PTR_ERR(ptr: rpm->ipc_regmap); |
594 | |
595 | ret = of_property_read_u32_index(np: pdev->dev.of_node, propname: "qcom,ipc" , index: 1, |
596 | out_value: &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(np: pdev->dev.of_node, propname: "qcom,ipc" , index: 2, |
603 | out_value: &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(dev: &pdev->dev, data: 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(val: fw_version[0], RPM_CTRL_REG(rpm, 0)); |
625 | writel(val: fw_version[1], RPM_CTRL_REG(rpm, 1)); |
626 | writel(val: 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(dev: &pdev->dev, |
633 | irq: irq_ack, |
634 | handler: qcom_rpm_ack_interrupt, |
635 | IRQF_TRIGGER_RISING, |
636 | devname: "qcom_rpm_ack" , |
637 | dev_id: 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: irq_ack, on: 1); |
644 | if (ret) |
645 | dev_warn(&pdev->dev, "failed to mark ack irq as wakeup\n" ); |
646 | |
647 | ret = devm_request_irq(dev: &pdev->dev, |
648 | irq: irq_err, |
649 | handler: qcom_rpm_err_interrupt, |
650 | IRQF_TRIGGER_RISING, |
651 | devname: "qcom_rpm_err" , |
652 | dev_id: 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(dev: &pdev->dev, |
659 | irq: irq_wakeup, |
660 | handler: qcom_rpm_wakeup_interrupt, |
661 | IRQF_TRIGGER_RISING, |
662 | devname: "qcom_rpm_wakeup" , |
663 | dev_id: 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: irq_wakeup, on: 1); |
670 | if (ret) |
671 | dev_warn(&pdev->dev, "failed to mark wakeup irq as wakeup\n" ); |
672 | |
673 | return devm_of_platform_populate(dev: &pdev->dev); |
674 | } |
675 | |
676 | static 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 | |
684 | static int __init qcom_rpm_init(void) |
685 | { |
686 | return platform_driver_register(&qcom_rpm_driver); |
687 | } |
688 | arch_initcall(qcom_rpm_init); |
689 | |
690 | static void __exit qcom_rpm_exit(void) |
691 | { |
692 | platform_driver_unregister(&qcom_rpm_driver); |
693 | } |
694 | module_exit(qcom_rpm_exit) |
695 | |
696 | MODULE_DESCRIPTION("Qualcomm Resource Power Manager driver" ); |
697 | MODULE_LICENSE("GPL v2" ); |
698 | MODULE_AUTHOR("Bjorn Andersson <bjorn.andersson@sonymobile.com>" ); |
699 | |