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c24b3114 HZ |
1 | /* |
2 | * linux/arch/arm/mach-mmp/irq.c | |
3 | * | |
4 | * Generic IRQ handling, GPIO IRQ demultiplexing, etc. | |
5 | * Copyright (C) 2008 - 2012 Marvell Technology Group Ltd. | |
6 | * | |
7 | * Author: Bin Yang <bin.yang@marvell.com> | |
8 | * Haojian Zhuang <haojian.zhuang@gmail.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | #include <linux/module.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/irq.h> | |
41a83e06 | 18 | #include <linux/irqchip.h> |
c24b3114 HZ |
19 | #include <linux/irqdomain.h> |
20 | #include <linux/io.h> | |
21 | #include <linux/ioport.h> | |
22 | #include <linux/of_address.h> | |
23 | #include <linux/of_irq.h> | |
24 | ||
0f374561 | 25 | #include <asm/exception.h> |
13dde818 | 26 | #include <asm/hardirq.h> |
0f374561 | 27 | |
c24b3114 HZ |
28 | #define MAX_ICU_NR 16 |
29 | ||
0f374561 HZ |
30 | #define PJ1_INT_SEL 0x10c |
31 | #define PJ4_INT_SEL 0x104 | |
32 | ||
33 | /* bit fields in PJ1_INT_SEL and PJ4_INT_SEL */ | |
34 | #define SEL_INT_PENDING (1 << 6) | |
35 | #define SEL_INT_NUM_MASK 0x3f | |
36 | ||
c24b3114 HZ |
37 | struct icu_chip_data { |
38 | int nr_irqs; | |
39 | unsigned int virq_base; | |
40 | unsigned int cascade_irq; | |
41 | void __iomem *reg_status; | |
42 | void __iomem *reg_mask; | |
43 | unsigned int conf_enable; | |
44 | unsigned int conf_disable; | |
45 | unsigned int conf_mask; | |
46 | unsigned int clr_mfp_irq_base; | |
47 | unsigned int clr_mfp_hwirq; | |
48 | struct irq_domain *domain; | |
49 | }; | |
50 | ||
51 | struct mmp_intc_conf { | |
52 | unsigned int conf_enable; | |
53 | unsigned int conf_disable; | |
54 | unsigned int conf_mask; | |
55 | }; | |
56 | ||
0f374561 | 57 | static void __iomem *mmp_icu_base; |
c24b3114 HZ |
58 | static struct icu_chip_data icu_data[MAX_ICU_NR]; |
59 | static int max_icu_nr; | |
60 | ||
61 | extern void mmp2_clear_pmic_int(void); | |
62 | ||
63 | static void icu_mask_ack_irq(struct irq_data *d) | |
64 | { | |
65 | struct irq_domain *domain = d->domain; | |
66 | struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data; | |
67 | int hwirq; | |
68 | u32 r; | |
69 | ||
70 | hwirq = d->irq - data->virq_base; | |
71 | if (data == &icu_data[0]) { | |
72 | r = readl_relaxed(mmp_icu_base + (hwirq << 2)); | |
73 | r &= ~data->conf_mask; | |
74 | r |= data->conf_disable; | |
75 | writel_relaxed(r, mmp_icu_base + (hwirq << 2)); | |
76 | } else { | |
77 | #ifdef CONFIG_CPU_MMP2 | |
78 | if ((data->virq_base == data->clr_mfp_irq_base) | |
79 | && (hwirq == data->clr_mfp_hwirq)) | |
80 | mmp2_clear_pmic_int(); | |
81 | #endif | |
82 | r = readl_relaxed(data->reg_mask) | (1 << hwirq); | |
83 | writel_relaxed(r, data->reg_mask); | |
84 | } | |
85 | } | |
86 | ||
87 | static void icu_mask_irq(struct irq_data *d) | |
88 | { | |
89 | struct irq_domain *domain = d->domain; | |
90 | struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data; | |
91 | int hwirq; | |
92 | u32 r; | |
93 | ||
94 | hwirq = d->irq - data->virq_base; | |
95 | if (data == &icu_data[0]) { | |
96 | r = readl_relaxed(mmp_icu_base + (hwirq << 2)); | |
97 | r &= ~data->conf_mask; | |
98 | r |= data->conf_disable; | |
99 | writel_relaxed(r, mmp_icu_base + (hwirq << 2)); | |
100 | } else { | |
101 | r = readl_relaxed(data->reg_mask) | (1 << hwirq); | |
102 | writel_relaxed(r, data->reg_mask); | |
103 | } | |
104 | } | |
105 | ||
106 | static void icu_unmask_irq(struct irq_data *d) | |
107 | { | |
108 | struct irq_domain *domain = d->domain; | |
109 | struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data; | |
110 | int hwirq; | |
111 | u32 r; | |
112 | ||
113 | hwirq = d->irq - data->virq_base; | |
114 | if (data == &icu_data[0]) { | |
115 | r = readl_relaxed(mmp_icu_base + (hwirq << 2)); | |
116 | r &= ~data->conf_mask; | |
117 | r |= data->conf_enable; | |
118 | writel_relaxed(r, mmp_icu_base + (hwirq << 2)); | |
119 | } else { | |
120 | r = readl_relaxed(data->reg_mask) & ~(1 << hwirq); | |
121 | writel_relaxed(r, data->reg_mask); | |
122 | } | |
123 | } | |
124 | ||
0f102b6c | 125 | struct irq_chip icu_irq_chip = { |
c24b3114 HZ |
126 | .name = "icu_irq", |
127 | .irq_mask = icu_mask_irq, | |
128 | .irq_mask_ack = icu_mask_ack_irq, | |
129 | .irq_unmask = icu_unmask_irq, | |
130 | }; | |
131 | ||
bd0b9ac4 | 132 | static void icu_mux_irq_demux(struct irq_desc *desc) |
c24b3114 | 133 | { |
14873aa1 | 134 | unsigned int irq = irq_desc_get_irq(desc); |
c24b3114 HZ |
135 | struct irq_domain *domain; |
136 | struct icu_chip_data *data; | |
137 | int i; | |
138 | unsigned long mask, status, n; | |
139 | ||
140 | for (i = 1; i < max_icu_nr; i++) { | |
141 | if (irq == icu_data[i].cascade_irq) { | |
142 | domain = icu_data[i].domain; | |
143 | data = (struct icu_chip_data *)domain->host_data; | |
144 | break; | |
145 | } | |
146 | } | |
147 | if (i >= max_icu_nr) { | |
148 | pr_err("Spurious irq %d in MMP INTC\n", irq); | |
149 | return; | |
150 | } | |
151 | ||
152 | mask = readl_relaxed(data->reg_mask); | |
153 | while (1) { | |
154 | status = readl_relaxed(data->reg_status) & ~mask; | |
155 | if (status == 0) | |
156 | break; | |
93d429a7 | 157 | for_each_set_bit(n, &status, BITS_PER_LONG) { |
c24b3114 | 158 | generic_handle_irq(icu_data[i].virq_base + n); |
c24b3114 HZ |
159 | } |
160 | } | |
161 | } | |
162 | ||
163 | static int mmp_irq_domain_map(struct irq_domain *d, unsigned int irq, | |
164 | irq_hw_number_t hw) | |
165 | { | |
166 | irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq); | |
c24b3114 HZ |
167 | return 0; |
168 | } | |
169 | ||
170 | static int mmp_irq_domain_xlate(struct irq_domain *d, struct device_node *node, | |
171 | const u32 *intspec, unsigned int intsize, | |
172 | unsigned long *out_hwirq, | |
173 | unsigned int *out_type) | |
174 | { | |
175 | *out_hwirq = intspec[0]; | |
176 | return 0; | |
177 | } | |
178 | ||
179 | const struct irq_domain_ops mmp_irq_domain_ops = { | |
180 | .map = mmp_irq_domain_map, | |
181 | .xlate = mmp_irq_domain_xlate, | |
182 | }; | |
183 | ||
c8c7d93d | 184 | static const struct mmp_intc_conf mmp_conf = { |
c24b3114 HZ |
185 | .conf_enable = 0x51, |
186 | .conf_disable = 0x0, | |
187 | .conf_mask = 0x7f, | |
188 | }; | |
189 | ||
c8c7d93d | 190 | static const struct mmp_intc_conf mmp2_conf = { |
c24b3114 HZ |
191 | .conf_enable = 0x20, |
192 | .conf_disable = 0x0, | |
193 | .conf_mask = 0x7f, | |
194 | }; | |
195 | ||
8783dd3a | 196 | static void __exception_irq_entry mmp_handle_irq(struct pt_regs *regs) |
0f374561 | 197 | { |
b918402c | 198 | int hwirq; |
0f374561 HZ |
199 | |
200 | hwirq = readl_relaxed(mmp_icu_base + PJ1_INT_SEL); | |
201 | if (!(hwirq & SEL_INT_PENDING)) | |
202 | return; | |
203 | hwirq &= SEL_INT_NUM_MASK; | |
b918402c | 204 | handle_domain_irq(icu_data[0].domain, hwirq, regs); |
0f374561 HZ |
205 | } |
206 | ||
8783dd3a | 207 | static void __exception_irq_entry mmp2_handle_irq(struct pt_regs *regs) |
0f374561 | 208 | { |
b918402c | 209 | int hwirq; |
0f374561 HZ |
210 | |
211 | hwirq = readl_relaxed(mmp_icu_base + PJ4_INT_SEL); | |
212 | if (!(hwirq & SEL_INT_PENDING)) | |
213 | return; | |
214 | hwirq &= SEL_INT_NUM_MASK; | |
b918402c | 215 | handle_domain_irq(icu_data[0].domain, hwirq, regs); |
0f374561 HZ |
216 | } |
217 | ||
c24b3114 HZ |
218 | /* MMP (ARMv5) */ |
219 | void __init icu_init_irq(void) | |
220 | { | |
221 | int irq; | |
222 | ||
223 | max_icu_nr = 1; | |
224 | mmp_icu_base = ioremap(0xd4282000, 0x1000); | |
225 | icu_data[0].conf_enable = mmp_conf.conf_enable; | |
226 | icu_data[0].conf_disable = mmp_conf.conf_disable; | |
227 | icu_data[0].conf_mask = mmp_conf.conf_mask; | |
228 | icu_data[0].nr_irqs = 64; | |
229 | icu_data[0].virq_base = 0; | |
230 | icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0, | |
231 | &irq_domain_simple_ops, | |
232 | &icu_data[0]); | |
233 | for (irq = 0; irq < 64; irq++) { | |
234 | icu_mask_irq(irq_get_irq_data(irq)); | |
235 | irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq); | |
c24b3114 HZ |
236 | } |
237 | irq_set_default_host(icu_data[0].domain); | |
0f374561 | 238 | set_handle_irq(mmp_handle_irq); |
c24b3114 HZ |
239 | } |
240 | ||
241 | /* MMP2 (ARMv7) */ | |
242 | void __init mmp2_init_icu(void) | |
243 | { | |
942f4221 | 244 | int irq, end; |
c24b3114 HZ |
245 | |
246 | max_icu_nr = 8; | |
247 | mmp_icu_base = ioremap(0xd4282000, 0x1000); | |
248 | icu_data[0].conf_enable = mmp2_conf.conf_enable; | |
249 | icu_data[0].conf_disable = mmp2_conf.conf_disable; | |
250 | icu_data[0].conf_mask = mmp2_conf.conf_mask; | |
251 | icu_data[0].nr_irqs = 64; | |
252 | icu_data[0].virq_base = 0; | |
253 | icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0, | |
254 | &irq_domain_simple_ops, | |
255 | &icu_data[0]); | |
256 | icu_data[1].reg_status = mmp_icu_base + 0x150; | |
257 | icu_data[1].reg_mask = mmp_icu_base + 0x168; | |
942f4221 HZ |
258 | icu_data[1].clr_mfp_irq_base = icu_data[0].virq_base + |
259 | icu_data[0].nr_irqs; | |
260 | icu_data[1].clr_mfp_hwirq = 1; /* offset to IRQ_MMP2_PMIC_BASE */ | |
c24b3114 | 261 | icu_data[1].nr_irqs = 2; |
10bd21c0 | 262 | icu_data[1].cascade_irq = 4; |
942f4221 | 263 | icu_data[1].virq_base = icu_data[0].virq_base + icu_data[0].nr_irqs; |
c24b3114 HZ |
264 | icu_data[1].domain = irq_domain_add_legacy(NULL, icu_data[1].nr_irqs, |
265 | icu_data[1].virq_base, 0, | |
266 | &irq_domain_simple_ops, | |
267 | &icu_data[1]); | |
268 | icu_data[2].reg_status = mmp_icu_base + 0x154; | |
269 | icu_data[2].reg_mask = mmp_icu_base + 0x16c; | |
270 | icu_data[2].nr_irqs = 2; | |
10bd21c0 | 271 | icu_data[2].cascade_irq = 5; |
942f4221 | 272 | icu_data[2].virq_base = icu_data[1].virq_base + icu_data[1].nr_irqs; |
c24b3114 HZ |
273 | icu_data[2].domain = irq_domain_add_legacy(NULL, icu_data[2].nr_irqs, |
274 | icu_data[2].virq_base, 0, | |
275 | &irq_domain_simple_ops, | |
276 | &icu_data[2]); | |
277 | icu_data[3].reg_status = mmp_icu_base + 0x180; | |
278 | icu_data[3].reg_mask = mmp_icu_base + 0x17c; | |
279 | icu_data[3].nr_irqs = 3; | |
10bd21c0 | 280 | icu_data[3].cascade_irq = 9; |
942f4221 | 281 | icu_data[3].virq_base = icu_data[2].virq_base + icu_data[2].nr_irqs; |
c24b3114 HZ |
282 | icu_data[3].domain = irq_domain_add_legacy(NULL, icu_data[3].nr_irqs, |
283 | icu_data[3].virq_base, 0, | |
284 | &irq_domain_simple_ops, | |
285 | &icu_data[3]); | |
286 | icu_data[4].reg_status = mmp_icu_base + 0x158; | |
287 | icu_data[4].reg_mask = mmp_icu_base + 0x170; | |
288 | icu_data[4].nr_irqs = 5; | |
10bd21c0 | 289 | icu_data[4].cascade_irq = 17; |
942f4221 | 290 | icu_data[4].virq_base = icu_data[3].virq_base + icu_data[3].nr_irqs; |
c24b3114 HZ |
291 | icu_data[4].domain = irq_domain_add_legacy(NULL, icu_data[4].nr_irqs, |
292 | icu_data[4].virq_base, 0, | |
293 | &irq_domain_simple_ops, | |
294 | &icu_data[4]); | |
295 | icu_data[5].reg_status = mmp_icu_base + 0x15c; | |
296 | icu_data[5].reg_mask = mmp_icu_base + 0x174; | |
297 | icu_data[5].nr_irqs = 15; | |
10bd21c0 | 298 | icu_data[5].cascade_irq = 35; |
942f4221 | 299 | icu_data[5].virq_base = icu_data[4].virq_base + icu_data[4].nr_irqs; |
c24b3114 HZ |
300 | icu_data[5].domain = irq_domain_add_legacy(NULL, icu_data[5].nr_irqs, |
301 | icu_data[5].virq_base, 0, | |
302 | &irq_domain_simple_ops, | |
303 | &icu_data[5]); | |
304 | icu_data[6].reg_status = mmp_icu_base + 0x160; | |
305 | icu_data[6].reg_mask = mmp_icu_base + 0x178; | |
306 | icu_data[6].nr_irqs = 2; | |
10bd21c0 | 307 | icu_data[6].cascade_irq = 51; |
942f4221 | 308 | icu_data[6].virq_base = icu_data[5].virq_base + icu_data[5].nr_irqs; |
c24b3114 HZ |
309 | icu_data[6].domain = irq_domain_add_legacy(NULL, icu_data[6].nr_irqs, |
310 | icu_data[6].virq_base, 0, | |
311 | &irq_domain_simple_ops, | |
312 | &icu_data[6]); | |
313 | icu_data[7].reg_status = mmp_icu_base + 0x188; | |
314 | icu_data[7].reg_mask = mmp_icu_base + 0x184; | |
315 | icu_data[7].nr_irqs = 2; | |
10bd21c0 | 316 | icu_data[7].cascade_irq = 55; |
942f4221 | 317 | icu_data[7].virq_base = icu_data[6].virq_base + icu_data[6].nr_irqs; |
c24b3114 HZ |
318 | icu_data[7].domain = irq_domain_add_legacy(NULL, icu_data[7].nr_irqs, |
319 | icu_data[7].virq_base, 0, | |
320 | &irq_domain_simple_ops, | |
321 | &icu_data[7]); | |
942f4221 HZ |
322 | end = icu_data[7].virq_base + icu_data[7].nr_irqs; |
323 | for (irq = 0; irq < end; irq++) { | |
c24b3114 | 324 | icu_mask_irq(irq_get_irq_data(irq)); |
942f4221 HZ |
325 | if (irq == icu_data[1].cascade_irq || |
326 | irq == icu_data[2].cascade_irq || | |
327 | irq == icu_data[3].cascade_irq || | |
328 | irq == icu_data[4].cascade_irq || | |
329 | irq == icu_data[5].cascade_irq || | |
330 | irq == icu_data[6].cascade_irq || | |
331 | irq == icu_data[7].cascade_irq) { | |
c24b3114 HZ |
332 | irq_set_chip(irq, &icu_irq_chip); |
333 | irq_set_chained_handler(irq, icu_mux_irq_demux); | |
942f4221 | 334 | } else { |
c24b3114 HZ |
335 | irq_set_chip_and_handler(irq, &icu_irq_chip, |
336 | handle_level_irq); | |
c24b3114 | 337 | } |
c24b3114 HZ |
338 | } |
339 | irq_set_default_host(icu_data[0].domain); | |
0f374561 | 340 | set_handle_irq(mmp2_handle_irq); |
c24b3114 HZ |
341 | } |
342 | ||
343 | #ifdef CONFIG_OF | |
0f374561 | 344 | static int __init mmp_init_bases(struct device_node *node) |
c24b3114 | 345 | { |
0f374561 | 346 | int ret, nr_irqs, irq, i = 0; |
c24b3114 | 347 | |
0f374561 HZ |
348 | ret = of_property_read_u32(node, "mrvl,intc-nr-irqs", &nr_irqs); |
349 | if (ret) { | |
350 | pr_err("Not found mrvl,intc-nr-irqs property\n"); | |
351 | return ret; | |
352 | } | |
c24b3114 | 353 | |
0f374561 HZ |
354 | mmp_icu_base = of_iomap(node, 0); |
355 | if (!mmp_icu_base) { | |
356 | pr_err("Failed to get interrupt controller register\n"); | |
357 | return -ENOMEM; | |
358 | } | |
359 | ||
360 | icu_data[0].virq_base = 0; | |
361 | icu_data[0].domain = irq_domain_add_linear(node, nr_irqs, | |
362 | &mmp_irq_domain_ops, | |
363 | &icu_data[0]); | |
364 | for (irq = 0; irq < nr_irqs; irq++) { | |
365 | ret = irq_create_mapping(icu_data[0].domain, irq); | |
366 | if (!ret) { | |
367 | pr_err("Failed to mapping hwirq\n"); | |
c24b3114 HZ |
368 | goto err; |
369 | } | |
0f374561 HZ |
370 | if (!irq) |
371 | icu_data[0].virq_base = ret; | |
c24b3114 | 372 | } |
0f374561 | 373 | icu_data[0].nr_irqs = nr_irqs; |
c24b3114 HZ |
374 | return 0; |
375 | err: | |
0f374561 HZ |
376 | if (icu_data[0].virq_base) { |
377 | for (i = 0; i < irq; i++) | |
378 | irq_dispose_mapping(icu_data[0].virq_base + i); | |
379 | } | |
380 | irq_domain_remove(icu_data[0].domain); | |
381 | iounmap(mmp_icu_base); | |
382 | return -EINVAL; | |
c24b3114 HZ |
383 | } |
384 | ||
0f374561 HZ |
385 | static int __init mmp_of_init(struct device_node *node, |
386 | struct device_node *parent) | |
c24b3114 | 387 | { |
0f374561 | 388 | int ret; |
c24b3114 | 389 | |
0f374561 HZ |
390 | ret = mmp_init_bases(node); |
391 | if (ret < 0) | |
392 | return ret; | |
393 | ||
394 | icu_data[0].conf_enable = mmp_conf.conf_enable; | |
395 | icu_data[0].conf_disable = mmp_conf.conf_disable; | |
396 | icu_data[0].conf_mask = mmp_conf.conf_mask; | |
397 | irq_set_default_host(icu_data[0].domain); | |
398 | set_handle_irq(mmp_handle_irq); | |
399 | max_icu_nr = 1; | |
400 | return 0; | |
401 | } | |
402 | IRQCHIP_DECLARE(mmp_intc, "mrvl,mmp-intc", mmp_of_init); | |
403 | ||
404 | static int __init mmp2_of_init(struct device_node *node, | |
405 | struct device_node *parent) | |
406 | { | |
407 | int ret; | |
408 | ||
409 | ret = mmp_init_bases(node); | |
410 | if (ret < 0) | |
411 | return ret; | |
412 | ||
413 | icu_data[0].conf_enable = mmp2_conf.conf_enable; | |
414 | icu_data[0].conf_disable = mmp2_conf.conf_disable; | |
415 | icu_data[0].conf_mask = mmp2_conf.conf_mask; | |
416 | irq_set_default_host(icu_data[0].domain); | |
417 | set_handle_irq(mmp2_handle_irq); | |
418 | max_icu_nr = 1; | |
419 | return 0; | |
420 | } | |
421 | IRQCHIP_DECLARE(mmp2_intc, "mrvl,mmp2-intc", mmp2_of_init); | |
422 | ||
423 | static int __init mmp2_mux_of_init(struct device_node *node, | |
424 | struct device_node *parent) | |
425 | { | |
426 | struct resource res; | |
427 | int i, ret, irq, j = 0; | |
428 | u32 nr_irqs, mfp_irq; | |
429 | ||
430 | if (!parent) | |
431 | return -ENODEV; | |
432 | ||
433 | i = max_icu_nr; | |
434 | ret = of_property_read_u32(node, "mrvl,intc-nr-irqs", | |
435 | &nr_irqs); | |
c24b3114 HZ |
436 | if (ret) { |
437 | pr_err("Not found mrvl,intc-nr-irqs property\n"); | |
0f374561 | 438 | return -EINVAL; |
c24b3114 | 439 | } |
0f374561 HZ |
440 | ret = of_address_to_resource(node, 0, &res); |
441 | if (ret < 0) { | |
442 | pr_err("Not found reg property\n"); | |
443 | return -EINVAL; | |
c24b3114 | 444 | } |
0f374561 HZ |
445 | icu_data[i].reg_status = mmp_icu_base + res.start; |
446 | ret = of_address_to_resource(node, 1, &res); | |
447 | if (ret < 0) { | |
448 | pr_err("Not found reg property\n"); | |
449 | return -EINVAL; | |
c24b3114 | 450 | } |
0f374561 HZ |
451 | icu_data[i].reg_mask = mmp_icu_base + res.start; |
452 | icu_data[i].cascade_irq = irq_of_parse_and_map(node, 0); | |
453 | if (!icu_data[i].cascade_irq) | |
454 | return -EINVAL; | |
455 | ||
456 | icu_data[i].virq_base = 0; | |
457 | icu_data[i].domain = irq_domain_add_linear(node, nr_irqs, | |
c24b3114 | 458 | &mmp_irq_domain_ops, |
0f374561 HZ |
459 | &icu_data[i]); |
460 | for (irq = 0; irq < nr_irqs; irq++) { | |
461 | ret = irq_create_mapping(icu_data[i].domain, irq); | |
462 | if (!ret) { | |
463 | pr_err("Failed to mapping hwirq\n"); | |
464 | goto err; | |
465 | } | |
466 | if (!irq) | |
467 | icu_data[i].virq_base = ret; | |
468 | } | |
469 | icu_data[i].nr_irqs = nr_irqs; | |
470 | if (!of_property_read_u32(node, "mrvl,clr-mfp-irq", | |
471 | &mfp_irq)) { | |
472 | icu_data[i].clr_mfp_irq_base = icu_data[i].virq_base; | |
473 | icu_data[i].clr_mfp_hwirq = mfp_irq; | |
474 | } | |
475 | irq_set_chained_handler(icu_data[i].cascade_irq, | |
476 | icu_mux_irq_demux); | |
477 | max_icu_nr++; | |
478 | return 0; | |
c24b3114 | 479 | err: |
0f374561 HZ |
480 | if (icu_data[i].virq_base) { |
481 | for (j = 0; j < irq; j++) | |
482 | irq_dispose_mapping(icu_data[i].virq_base + j); | |
483 | } | |
484 | irq_domain_remove(icu_data[i].domain); | |
485 | return -EINVAL; | |
c24b3114 | 486 | } |
0f374561 | 487 | IRQCHIP_DECLARE(mmp2_mux_intc, "mrvl,mmp2-mux-intc", mmp2_mux_of_init); |
c24b3114 | 488 | #endif |