Commit | Line | Data |
---|---|---|
3f4110a4 TG |
1 | /* |
2 | * mrst.c: Intel Moorestown platform specific setup code | |
3 | * | |
4 | * (C) Copyright 2008 Intel Corporation | |
5 | * Author: Jacob Pan (jacob.jun.pan@intel.com) | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; version 2 | |
10 | * of the License. | |
11 | */ | |
1da4b1c6 FT |
12 | |
13 | #define pr_fmt(fmt) "mrst: " fmt | |
14 | ||
3f4110a4 | 15 | #include <linux/init.h> |
16ab5395 | 16 | #include <linux/kernel.h> |
efe3ed98 FT |
17 | #include <linux/interrupt.h> |
18 | #include <linux/scatterlist.h> | |
16ab5395 | 19 | #include <linux/sfi.h> |
1da4b1c6 FT |
20 | #include <linux/intel_pmic_gpio.h> |
21 | #include <linux/spi/spi.h> | |
22 | #include <linux/i2c.h> | |
23 | #include <linux/i2c/pca953x.h> | |
24 | #include <linux/gpio_keys.h> | |
25 | #include <linux/input.h> | |
26 | #include <linux/platform_device.h> | |
16ab5395 | 27 | #include <linux/irq.h> |
cf089455 | 28 | #include <linux/module.h> |
42c2544b | 29 | #include <linux/notifier.h> |
360545c1 | 30 | #include <linux/mfd/intel_msic.h> |
026abc33 KS |
31 | #include <linux/gpio.h> |
32 | #include <linux/i2c/tc35876x.h> | |
3f4110a4 TG |
33 | |
34 | #include <asm/setup.h> | |
16ab5395 JP |
35 | #include <asm/mpspec_def.h> |
36 | #include <asm/hw_irq.h> | |
37 | #include <asm/apic.h> | |
38 | #include <asm/io_apic.h> | |
5b78b672 | 39 | #include <asm/mrst.h> |
168202c7 | 40 | #include <asm/mrst-vrtc.h> |
5b78b672 JP |
41 | #include <asm/io.h> |
42 | #include <asm/i8259.h> | |
1da4b1c6 | 43 | #include <asm/intel_scu_ipc.h> |
3746c6b6 | 44 | #include <asm/apb_timer.h> |
cfb505a7 | 45 | #include <asm/reboot.h> |
3f4110a4 | 46 | |
a875c019 JP |
47 | /* |
48 | * the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock, | |
49 | * cmdline option x86_mrst_timer can be used to override the configuration | |
50 | * to prefer one or the other. | |
51 | * at runtime, there are basically three timer configurations: | |
52 | * 1. per cpu apbt clock only | |
53 | * 2. per cpu always-on lapic clocks only, this is Penwell/Medfield only | |
54 | * 3. per cpu lapic clock (C3STOP) and one apbt clock, with broadcast. | |
55 | * | |
56 | * by default (without cmdline option), platform code first detects cpu type | |
57 | * to see if we are on lincroft or penwell, then set up both lapic or apbt | |
58 | * clocks accordingly. | |
59 | * i.e. by default, medfield uses configuration #2, moorestown uses #1. | |
60 | * config #3 is supported but not recommended on medfield. | |
61 | * | |
62 | * rating and feature summary: | |
63 | * lapic (with C3STOP) --------- 100 | |
64 | * apbt (always-on) ------------ 110 | |
65 | * lapic (always-on,ARAT) ------ 150 | |
66 | */ | |
67 | ||
14671386 | 68 | __cpuinitdata enum mrst_timer_options mrst_timer_options; |
a875c019 | 69 | |
16ab5395 JP |
70 | static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM]; |
71 | static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM]; | |
a75af580 PA |
72 | enum mrst_cpu_type __mrst_cpu_chip; |
73 | EXPORT_SYMBOL_GPL(__mrst_cpu_chip); | |
a0c173bd | 74 | |
16ab5395 JP |
75 | int sfi_mtimer_num; |
76 | ||
cf089455 FT |
77 | struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX]; |
78 | EXPORT_SYMBOL_GPL(sfi_mrtc_array); | |
79 | int sfi_mrtc_num; | |
80 | ||
48bc5562 JP |
81 | static void mrst_power_off(void) |
82 | { | |
48bc5562 JP |
83 | } |
84 | ||
85 | static void mrst_reboot(void) | |
86 | { | |
1a8359e4 | 87 | intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0); |
48bc5562 JP |
88 | } |
89 | ||
16ab5395 JP |
90 | /* parse all the mtimer info to a static mtimer array */ |
91 | static int __init sfi_parse_mtmr(struct sfi_table_header *table) | |
92 | { | |
93 | struct sfi_table_simple *sb; | |
94 | struct sfi_timer_table_entry *pentry; | |
95 | struct mpc_intsrc mp_irq; | |
96 | int totallen; | |
97 | ||
98 | sb = (struct sfi_table_simple *)table; | |
99 | if (!sfi_mtimer_num) { | |
100 | sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb, | |
101 | struct sfi_timer_table_entry); | |
102 | pentry = (struct sfi_timer_table_entry *) sb->pentry; | |
103 | totallen = sfi_mtimer_num * sizeof(*pentry); | |
104 | memcpy(sfi_mtimer_array, pentry, totallen); | |
105 | } | |
106 | ||
1da4b1c6 | 107 | pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num); |
16ab5395 JP |
108 | pentry = sfi_mtimer_array; |
109 | for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) { | |
1da4b1c6 | 110 | pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz," |
16ab5395 JP |
111 | " irq = %d\n", totallen, (u32)pentry->phys_addr, |
112 | pentry->freq_hz, pentry->irq); | |
113 | if (!pentry->irq) | |
114 | continue; | |
9d90e49d | 115 | mp_irq.type = MP_INTSRC; |
16ab5395 JP |
116 | mp_irq.irqtype = mp_INT; |
117 | /* triggering mode edge bit 2-3, active high polarity bit 0-1 */ | |
118 | mp_irq.irqflag = 5; | |
9d90e49d | 119 | mp_irq.srcbus = MP_BUS_ISA; |
16ab5395 JP |
120 | mp_irq.srcbusirq = pentry->irq; /* IRQ */ |
121 | mp_irq.dstapic = MP_APIC_ALL; | |
122 | mp_irq.dstirq = pentry->irq; | |
2d8009ba | 123 | mp_save_irq(&mp_irq); |
16ab5395 JP |
124 | } |
125 | ||
126 | return 0; | |
127 | } | |
128 | ||
129 | struct sfi_timer_table_entry *sfi_get_mtmr(int hint) | |
130 | { | |
131 | int i; | |
132 | if (hint < sfi_mtimer_num) { | |
133 | if (!sfi_mtimer_usage[hint]) { | |
134 | pr_debug("hint taken for timer %d irq %d\n",\ | |
135 | hint, sfi_mtimer_array[hint].irq); | |
136 | sfi_mtimer_usage[hint] = 1; | |
137 | return &sfi_mtimer_array[hint]; | |
138 | } | |
139 | } | |
140 | /* take the first timer available */ | |
141 | for (i = 0; i < sfi_mtimer_num;) { | |
142 | if (!sfi_mtimer_usage[i]) { | |
143 | sfi_mtimer_usage[i] = 1; | |
144 | return &sfi_mtimer_array[i]; | |
145 | } | |
146 | i++; | |
147 | } | |
148 | return NULL; | |
149 | } | |
150 | ||
151 | void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr) | |
152 | { | |
153 | int i; | |
154 | for (i = 0; i < sfi_mtimer_num;) { | |
155 | if (mtmr->irq == sfi_mtimer_array[i].irq) { | |
156 | sfi_mtimer_usage[i] = 0; | |
157 | return; | |
158 | } | |
159 | i++; | |
160 | } | |
161 | } | |
162 | ||
cf089455 FT |
163 | /* parse all the mrtc info to a global mrtc array */ |
164 | int __init sfi_parse_mrtc(struct sfi_table_header *table) | |
165 | { | |
166 | struct sfi_table_simple *sb; | |
167 | struct sfi_rtc_table_entry *pentry; | |
168 | struct mpc_intsrc mp_irq; | |
169 | ||
170 | int totallen; | |
171 | ||
172 | sb = (struct sfi_table_simple *)table; | |
173 | if (!sfi_mrtc_num) { | |
174 | sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb, | |
175 | struct sfi_rtc_table_entry); | |
176 | pentry = (struct sfi_rtc_table_entry *)sb->pentry; | |
177 | totallen = sfi_mrtc_num * sizeof(*pentry); | |
178 | memcpy(sfi_mrtc_array, pentry, totallen); | |
179 | } | |
180 | ||
1da4b1c6 | 181 | pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num); |
cf089455 FT |
182 | pentry = sfi_mrtc_array; |
183 | for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) { | |
1da4b1c6 | 184 | pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n", |
cf089455 | 185 | totallen, (u32)pentry->phys_addr, pentry->irq); |
9d90e49d | 186 | mp_irq.type = MP_INTSRC; |
cf089455 | 187 | mp_irq.irqtype = mp_INT; |
6f207e9b | 188 | mp_irq.irqflag = 0xf; /* level trigger and active low */ |
9d90e49d | 189 | mp_irq.srcbus = MP_BUS_ISA; |
cf089455 FT |
190 | mp_irq.srcbusirq = pentry->irq; /* IRQ */ |
191 | mp_irq.dstapic = MP_APIC_ALL; | |
192 | mp_irq.dstirq = pentry->irq; | |
2d8009ba | 193 | mp_save_irq(&mp_irq); |
cf089455 FT |
194 | } |
195 | return 0; | |
196 | } | |
197 | ||
3746c6b6 JP |
198 | static unsigned long __init mrst_calibrate_tsc(void) |
199 | { | |
1a8359e4 AC |
200 | unsigned long fast_calibrate; |
201 | u32 lo, hi, ratio, fsb; | |
0a915326 | 202 | |
1a8359e4 AC |
203 | rdmsr(MSR_IA32_PERF_STATUS, lo, hi); |
204 | pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi); | |
205 | ratio = (hi >> 8) & 0x1f; | |
206 | pr_debug("ratio is %d\n", ratio); | |
207 | if (!ratio) { | |
208 | pr_err("read a zero ratio, should be incorrect!\n"); | |
209 | pr_err("force tsc ratio to 16 ...\n"); | |
210 | ratio = 16; | |
0a915326 | 211 | } |
1a8359e4 AC |
212 | rdmsr(MSR_FSB_FREQ, lo, hi); |
213 | if ((lo & 0x7) == 0x7) | |
214 | fsb = PENWELL_FSB_FREQ_83SKU; | |
215 | else | |
216 | fsb = PENWELL_FSB_FREQ_100SKU; | |
217 | fast_calibrate = ratio * fsb; | |
218 | pr_debug("read penwell tsc %lu khz\n", fast_calibrate); | |
219 | lapic_timer_frequency = fsb * 1000 / HZ; | |
220 | /* mark tsc clocksource as reliable */ | |
221 | set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE); | |
0a915326 | 222 | |
3746c6b6 JP |
223 | if (fast_calibrate) |
224 | return fast_calibrate; | |
225 | ||
226 | return 0; | |
227 | } | |
228 | ||
8fab6af2 | 229 | static void __init mrst_time_init(void) |
3746c6b6 | 230 | { |
7f05dec3 | 231 | sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr); |
a875c019 JP |
232 | switch (mrst_timer_options) { |
233 | case MRST_TIMER_APBT_ONLY: | |
234 | break; | |
235 | case MRST_TIMER_LAPIC_APBT: | |
236 | x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock; | |
237 | x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock; | |
238 | break; | |
239 | default: | |
240 | if (!boot_cpu_has(X86_FEATURE_ARAT)) | |
241 | break; | |
242 | x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock; | |
243 | x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock; | |
244 | return; | |
245 | } | |
246 | /* we need at least one APB timer */ | |
3746c6b6 JP |
247 | pre_init_apic_IRQ0(); |
248 | apbt_time_init(); | |
249 | } | |
250 | ||
8fab6af2 | 251 | static void __cpuinit mrst_arch_setup(void) |
3746c6b6 | 252 | { |
a0c173bd | 253 | if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27) |
a75af580 | 254 | __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL; |
a0c173bd | 255 | else { |
1a8359e4 | 256 | pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n", |
a0c173bd | 257 | boot_cpu_data.x86, boot_cpu_data.x86_model); |
1a8359e4 | 258 | __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL; |
a0c173bd | 259 | } |
a0c173bd | 260 | } |
3746c6b6 | 261 | |
6d2cce62 FT |
262 | /* MID systems don't have i8042 controller */ |
263 | static int mrst_i8042_detect(void) | |
264 | { | |
265 | return 0; | |
266 | } | |
267 | ||
064a59b6 JP |
268 | /* |
269 | * Moorestown does not have external NMI source nor port 0x61 to report | |
270 | * NMI status. The possible NMI sources are from pmu as a result of NMI | |
271 | * watchdog or lock debug. Reading io port 0x61 results in 0xff which | |
272 | * misled NMI handler. | |
273 | */ | |
274 | static unsigned char mrst_get_nmi_reason(void) | |
275 | { | |
276 | return 0; | |
277 | } | |
278 | ||
3f4110a4 TG |
279 | /* |
280 | * Moorestown specific x86_init function overrides and early setup | |
281 | * calls. | |
282 | */ | |
283 | void __init x86_mrst_early_setup(void) | |
284 | { | |
285 | x86_init.resources.probe_roms = x86_init_noop; | |
286 | x86_init.resources.reserve_resources = x86_init_noop; | |
5b78b672 | 287 | |
3746c6b6 | 288 | x86_init.timers.timer_init = mrst_time_init; |
a875c019 | 289 | x86_init.timers.setup_percpu_clockev = x86_init_noop; |
3746c6b6 JP |
290 | |
291 | x86_init.irqs.pre_vector_init = x86_init_noop; | |
292 | ||
a0c173bd JP |
293 | x86_init.oem.arch_setup = mrst_arch_setup; |
294 | ||
a875c019 | 295 | x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock; |
3746c6b6 JP |
296 | |
297 | x86_platform.calibrate_tsc = mrst_calibrate_tsc; | |
6d2cce62 | 298 | x86_platform.i8042_detect = mrst_i8042_detect; |
168202c7 | 299 | x86_init.timers.wallclock_init = mrst_rtc_init; |
064a59b6 JP |
300 | x86_platform.get_nmi_reason = mrst_get_nmi_reason; |
301 | ||
af2730f6 JP |
302 | x86_init.pci.init = pci_mrst_init; |
303 | x86_init.pci.fixup_irqs = x86_init_noop; | |
304 | ||
5b78b672 | 305 | legacy_pic = &null_legacy_pic; |
fea24e28 | 306 | |
cfb505a7 AD |
307 | /* Moorestown specific power_off/restart method */ |
308 | pm_power_off = mrst_power_off; | |
309 | machine_ops.emergency_restart = mrst_reboot; | |
310 | ||
fea24e28 JP |
311 | /* Avoid searching for BIOS MP tables */ |
312 | x86_init.mpparse.find_smp_config = x86_init_noop; | |
313 | x86_init.mpparse.get_smp_config = x86_init_uint_noop; | |
9d90e49d | 314 | set_bit(MP_BUS_ISA, mp_bus_not_pci); |
3f4110a4 | 315 | } |
a875c019 JP |
316 | |
317 | /* | |
318 | * if user does not want to use per CPU apb timer, just give it a lower rating | |
319 | * than local apic timer and skip the late per cpu timer init. | |
320 | */ | |
321 | static inline int __init setup_x86_mrst_timer(char *arg) | |
322 | { | |
323 | if (!arg) | |
324 | return -EINVAL; | |
325 | ||
326 | if (strcmp("apbt_only", arg) == 0) | |
327 | mrst_timer_options = MRST_TIMER_APBT_ONLY; | |
328 | else if (strcmp("lapic_and_apbt", arg) == 0) | |
329 | mrst_timer_options = MRST_TIMER_LAPIC_APBT; | |
330 | else { | |
331 | pr_warning("X86 MRST timer option %s not recognised" | |
332 | " use x86_mrst_timer=apbt_only or lapic_and_apbt\n", | |
333 | arg); | |
334 | return -EINVAL; | |
335 | } | |
336 | return 0; | |
337 | } | |
338 | __setup("x86_mrst_timer=", setup_x86_mrst_timer); | |
1da4b1c6 FT |
339 | |
340 | /* | |
341 | * Parsing GPIO table first, since the DEVS table will need this table | |
342 | * to map the pin name to the actual pin. | |
343 | */ | |
344 | static struct sfi_gpio_table_entry *gpio_table; | |
345 | static int gpio_num_entry; | |
346 | ||
347 | static int __init sfi_parse_gpio(struct sfi_table_header *table) | |
348 | { | |
349 | struct sfi_table_simple *sb; | |
350 | struct sfi_gpio_table_entry *pentry; | |
351 | int num, i; | |
352 | ||
353 | if (gpio_table) | |
354 | return 0; | |
355 | sb = (struct sfi_table_simple *)table; | |
356 | num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry); | |
357 | pentry = (struct sfi_gpio_table_entry *)sb->pentry; | |
358 | ||
359 | gpio_table = (struct sfi_gpio_table_entry *) | |
360 | kmalloc(num * sizeof(*pentry), GFP_KERNEL); | |
361 | if (!gpio_table) | |
362 | return -1; | |
363 | memcpy(gpio_table, pentry, num * sizeof(*pentry)); | |
364 | gpio_num_entry = num; | |
365 | ||
366 | pr_debug("GPIO pin info:\n"); | |
367 | for (i = 0; i < num; i++, pentry++) | |
368 | pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s," | |
369 | " pin = %d\n", i, | |
370 | pentry->controller_name, | |
371 | pentry->pin_name, | |
372 | pentry->pin_no); | |
373 | return 0; | |
374 | } | |
375 | ||
376 | static int get_gpio_by_name(const char *name) | |
377 | { | |
378 | struct sfi_gpio_table_entry *pentry = gpio_table; | |
379 | int i; | |
380 | ||
381 | if (!pentry) | |
382 | return -1; | |
383 | for (i = 0; i < gpio_num_entry; i++, pentry++) { | |
384 | if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN)) | |
385 | return pentry->pin_no; | |
386 | } | |
387 | return -1; | |
388 | } | |
389 | ||
390 | /* | |
391 | * Here defines the array of devices platform data that IAFW would export | |
392 | * through SFI "DEVS" table, we use name and type to match the device and | |
393 | * its platform data. | |
394 | */ | |
395 | struct devs_id { | |
396 | char name[SFI_NAME_LEN + 1]; | |
397 | u8 type; | |
398 | u8 delay; | |
399 | void *(*get_platform_data)(void *info); | |
400 | }; | |
401 | ||
402 | /* the offset for the mapping of global gpio pin to irq */ | |
403 | #define MRST_IRQ_OFFSET 0x100 | |
404 | ||
405 | static void __init *pmic_gpio_platform_data(void *info) | |
406 | { | |
407 | static struct intel_pmic_gpio_platform_data pmic_gpio_pdata; | |
408 | int gpio_base = get_gpio_by_name("pmic_gpio_base"); | |
409 | ||
410 | if (gpio_base == -1) | |
411 | gpio_base = 64; | |
412 | pmic_gpio_pdata.gpio_base = gpio_base; | |
413 | pmic_gpio_pdata.irq_base = gpio_base + MRST_IRQ_OFFSET; | |
414 | pmic_gpio_pdata.gpiointr = 0xffffeff8; | |
415 | ||
416 | return &pmic_gpio_pdata; | |
417 | } | |
418 | ||
419 | static void __init *max3111_platform_data(void *info) | |
420 | { | |
421 | struct spi_board_info *spi_info = info; | |
422 | int intr = get_gpio_by_name("max3111_int"); | |
423 | ||
efe3ed98 | 424 | spi_info->mode = SPI_MODE_0; |
1da4b1c6 FT |
425 | if (intr == -1) |
426 | return NULL; | |
427 | spi_info->irq = intr + MRST_IRQ_OFFSET; | |
428 | return NULL; | |
429 | } | |
430 | ||
431 | /* we have multiple max7315 on the board ... */ | |
432 | #define MAX7315_NUM 2 | |
433 | static void __init *max7315_platform_data(void *info) | |
434 | { | |
435 | static struct pca953x_platform_data max7315_pdata[MAX7315_NUM]; | |
436 | static int nr; | |
437 | struct pca953x_platform_data *max7315 = &max7315_pdata[nr]; | |
438 | struct i2c_board_info *i2c_info = info; | |
439 | int gpio_base, intr; | |
440 | char base_pin_name[SFI_NAME_LEN + 1]; | |
441 | char intr_pin_name[SFI_NAME_LEN + 1]; | |
442 | ||
443 | if (nr == MAX7315_NUM) { | |
444 | pr_err("too many max7315s, we only support %d\n", | |
445 | MAX7315_NUM); | |
446 | return NULL; | |
447 | } | |
448 | /* we have several max7315 on the board, we only need load several | |
449 | * instances of the same pca953x driver to cover them | |
450 | */ | |
451 | strcpy(i2c_info->type, "max7315"); | |
452 | if (nr++) { | |
453 | sprintf(base_pin_name, "max7315_%d_base", nr); | |
454 | sprintf(intr_pin_name, "max7315_%d_int", nr); | |
455 | } else { | |
456 | strcpy(base_pin_name, "max7315_base"); | |
457 | strcpy(intr_pin_name, "max7315_int"); | |
458 | } | |
459 | ||
460 | gpio_base = get_gpio_by_name(base_pin_name); | |
461 | intr = get_gpio_by_name(intr_pin_name); | |
462 | ||
463 | if (gpio_base == -1) | |
464 | return NULL; | |
465 | max7315->gpio_base = gpio_base; | |
466 | if (intr != -1) { | |
467 | i2c_info->irq = intr + MRST_IRQ_OFFSET; | |
468 | max7315->irq_base = gpio_base + MRST_IRQ_OFFSET; | |
469 | } else { | |
470 | i2c_info->irq = -1; | |
471 | max7315->irq_base = -1; | |
472 | } | |
473 | return max7315; | |
474 | } | |
475 | ||
28744b3e JL |
476 | static void *tca6416_platform_data(void *info) |
477 | { | |
478 | static struct pca953x_platform_data tca6416; | |
479 | struct i2c_board_info *i2c_info = info; | |
480 | int gpio_base, intr; | |
481 | char base_pin_name[SFI_NAME_LEN + 1]; | |
482 | char intr_pin_name[SFI_NAME_LEN + 1]; | |
483 | ||
484 | strcpy(i2c_info->type, "tca6416"); | |
485 | strcpy(base_pin_name, "tca6416_base"); | |
486 | strcpy(intr_pin_name, "tca6416_int"); | |
487 | ||
488 | gpio_base = get_gpio_by_name(base_pin_name); | |
489 | intr = get_gpio_by_name(intr_pin_name); | |
490 | ||
491 | if (gpio_base == -1) | |
492 | return NULL; | |
493 | tca6416.gpio_base = gpio_base; | |
494 | if (intr != -1) { | |
495 | i2c_info->irq = intr + MRST_IRQ_OFFSET; | |
496 | tca6416.irq_base = gpio_base + MRST_IRQ_OFFSET; | |
497 | } else { | |
498 | i2c_info->irq = -1; | |
499 | tca6416.irq_base = -1; | |
500 | } | |
501 | return &tca6416; | |
502 | } | |
503 | ||
504 | static void *mpu3050_platform_data(void *info) | |
505 | { | |
506 | struct i2c_board_info *i2c_info = info; | |
507 | int intr = get_gpio_by_name("mpu3050_int"); | |
508 | ||
509 | if (intr == -1) | |
510 | return NULL; | |
511 | ||
512 | i2c_info->irq = intr + MRST_IRQ_OFFSET; | |
513 | return NULL; | |
514 | } | |
515 | ||
1da4b1c6 FT |
516 | static void __init *emc1403_platform_data(void *info) |
517 | { | |
518 | static short intr2nd_pdata; | |
519 | struct i2c_board_info *i2c_info = info; | |
520 | int intr = get_gpio_by_name("thermal_int"); | |
521 | int intr2nd = get_gpio_by_name("thermal_alert"); | |
522 | ||
523 | if (intr == -1 || intr2nd == -1) | |
524 | return NULL; | |
525 | ||
526 | i2c_info->irq = intr + MRST_IRQ_OFFSET; | |
527 | intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET; | |
528 | ||
529 | return &intr2nd_pdata; | |
530 | } | |
531 | ||
532 | static void __init *lis331dl_platform_data(void *info) | |
533 | { | |
534 | static short intr2nd_pdata; | |
535 | struct i2c_board_info *i2c_info = info; | |
536 | int intr = get_gpio_by_name("accel_int"); | |
537 | int intr2nd = get_gpio_by_name("accel_2"); | |
538 | ||
539 | if (intr == -1 || intr2nd == -1) | |
540 | return NULL; | |
541 | ||
542 | i2c_info->irq = intr + MRST_IRQ_OFFSET; | |
543 | intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET; | |
544 | ||
545 | return &intr2nd_pdata; | |
546 | } | |
547 | ||
86071535 VK |
548 | static void __init *no_platform_data(void *info) |
549 | { | |
550 | return NULL; | |
551 | } | |
552 | ||
360545c1 MW |
553 | static struct resource msic_resources[] = { |
554 | { | |
555 | .start = INTEL_MSIC_IRQ_PHYS_BASE, | |
556 | .end = INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1, | |
557 | .flags = IORESOURCE_MEM, | |
558 | }, | |
559 | }; | |
560 | ||
561 | static struct intel_msic_platform_data msic_pdata; | |
562 | ||
563 | static struct platform_device msic_device = { | |
564 | .name = "intel_msic", | |
565 | .id = -1, | |
566 | .dev = { | |
567 | .platform_data = &msic_pdata, | |
568 | }, | |
569 | .num_resources = ARRAY_SIZE(msic_resources), | |
570 | .resource = msic_resources, | |
571 | }; | |
572 | ||
573 | static inline bool mrst_has_msic(void) | |
574 | { | |
575 | return mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL; | |
576 | } | |
577 | ||
578 | static int msic_scu_status_change(struct notifier_block *nb, | |
579 | unsigned long code, void *data) | |
580 | { | |
581 | if (code == SCU_DOWN) { | |
582 | platform_device_unregister(&msic_device); | |
583 | return 0; | |
584 | } | |
585 | ||
586 | return platform_device_register(&msic_device); | |
587 | } | |
588 | ||
589 | static int __init msic_init(void) | |
590 | { | |
591 | static struct notifier_block msic_scu_notifier = { | |
592 | .notifier_call = msic_scu_status_change, | |
593 | }; | |
594 | ||
595 | /* | |
596 | * We need to be sure that the SCU IPC is ready before MSIC device | |
597 | * can be registered. | |
598 | */ | |
599 | if (mrst_has_msic()) | |
600 | intel_scu_notifier_add(&msic_scu_notifier); | |
601 | ||
602 | return 0; | |
603 | } | |
604 | arch_initcall(msic_init); | |
605 | ||
606 | /* | |
607 | * msic_generic_platform_data - sets generic platform data for the block | |
608 | * @info: pointer to the SFI device table entry for this block | |
609 | * @block: MSIC block | |
610 | * | |
611 | * Function sets IRQ number from the SFI table entry for given device to | |
612 | * the MSIC platform data. | |
613 | */ | |
614 | static void *msic_generic_platform_data(void *info, enum intel_msic_block block) | |
615 | { | |
616 | struct sfi_device_table_entry *entry = info; | |
617 | ||
618 | BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST); | |
619 | msic_pdata.irq[block] = entry->irq; | |
620 | ||
621 | return no_platform_data(info); | |
622 | } | |
623 | ||
624 | static void *msic_battery_platform_data(void *info) | |
625 | { | |
626 | return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY); | |
627 | } | |
628 | ||
629 | static void *msic_gpio_platform_data(void *info) | |
630 | { | |
631 | static struct intel_msic_gpio_pdata pdata; | |
632 | int gpio = get_gpio_by_name("msic_gpio_base"); | |
633 | ||
634 | if (gpio < 0) | |
635 | return NULL; | |
636 | ||
637 | pdata.gpio_base = gpio; | |
638 | msic_pdata.gpio = &pdata; | |
639 | ||
640 | return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO); | |
641 | } | |
642 | ||
643 | static void *msic_audio_platform_data(void *info) | |
644 | { | |
645 | struct platform_device *pdev; | |
646 | ||
647 | pdev = platform_device_register_simple("sst-platform", -1, NULL, 0); | |
648 | if (IS_ERR(pdev)) { | |
649 | pr_err("failed to create audio platform device\n"); | |
650 | return NULL; | |
651 | } | |
652 | ||
653 | return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO); | |
654 | } | |
655 | ||
656 | static void *msic_power_btn_platform_data(void *info) | |
657 | { | |
658 | return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN); | |
659 | } | |
660 | ||
661 | static void *msic_ocd_platform_data(void *info) | |
662 | { | |
663 | static struct intel_msic_ocd_pdata pdata; | |
664 | int gpio = get_gpio_by_name("ocd_gpio"); | |
665 | ||
666 | if (gpio < 0) | |
667 | return NULL; | |
668 | ||
669 | pdata.gpio = gpio; | |
670 | msic_pdata.ocd = &pdata; | |
671 | ||
672 | return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD); | |
673 | } | |
674 | ||
ecfdb0ac MW |
675 | static void *msic_thermal_platform_data(void *info) |
676 | { | |
677 | return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL); | |
678 | } | |
679 | ||
026abc33 KS |
680 | /* tc35876x DSI-LVDS bridge chip and panel platform data */ |
681 | static void *tc35876x_platform_data(void *data) | |
682 | { | |
683 | static struct tc35876x_platform_data pdata; | |
684 | ||
685 | /* gpio pins set to -1 will not be used by the driver */ | |
686 | pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN"); | |
687 | pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN"); | |
688 | pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3"); | |
689 | ||
690 | return &pdata; | |
691 | } | |
692 | ||
1da4b1c6 | 693 | static const struct devs_id __initconst device_ids[] = { |
9f80d8b6 | 694 | {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data}, |
1da4b1c6 | 695 | {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data}, |
efa22126 | 696 | {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data}, |
1da4b1c6 FT |
697 | {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data}, |
698 | {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data}, | |
699 | {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data}, | |
28744b3e | 700 | {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data}, |
1da4b1c6 FT |
701 | {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data}, |
702 | {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data}, | |
86071535 | 703 | {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data}, |
28744b3e | 704 | {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data}, |
026abc33 | 705 | {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data}, |
360545c1 MW |
706 | |
707 | /* MSIC subdevices */ | |
708 | {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data}, | |
709 | {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data}, | |
710 | {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data}, | |
711 | {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data}, | |
712 | {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data}, | |
ecfdb0ac | 713 | {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data}, |
360545c1 | 714 | |
1da4b1c6 FT |
715 | {}, |
716 | }; | |
717 | ||
718 | #define MAX_IPCDEVS 24 | |
719 | static struct platform_device *ipc_devs[MAX_IPCDEVS]; | |
720 | static int ipc_next_dev; | |
721 | ||
722 | #define MAX_SCU_SPI 24 | |
723 | static struct spi_board_info *spi_devs[MAX_SCU_SPI]; | |
724 | static int spi_next_dev; | |
725 | ||
726 | #define MAX_SCU_I2C 24 | |
727 | static struct i2c_board_info *i2c_devs[MAX_SCU_I2C]; | |
728 | static int i2c_bus[MAX_SCU_I2C]; | |
729 | static int i2c_next_dev; | |
730 | ||
731 | static void __init intel_scu_device_register(struct platform_device *pdev) | |
732 | { | |
733 | if(ipc_next_dev == MAX_IPCDEVS) | |
734 | pr_err("too many SCU IPC devices"); | |
735 | else | |
736 | ipc_devs[ipc_next_dev++] = pdev; | |
737 | } | |
738 | ||
739 | static void __init intel_scu_spi_device_register(struct spi_board_info *sdev) | |
740 | { | |
741 | struct spi_board_info *new_dev; | |
742 | ||
743 | if (spi_next_dev == MAX_SCU_SPI) { | |
744 | pr_err("too many SCU SPI devices"); | |
745 | return; | |
746 | } | |
747 | ||
748 | new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL); | |
749 | if (!new_dev) { | |
750 | pr_err("failed to alloc mem for delayed spi dev %s\n", | |
751 | sdev->modalias); | |
752 | return; | |
753 | } | |
754 | memcpy(new_dev, sdev, sizeof(*sdev)); | |
755 | ||
756 | spi_devs[spi_next_dev++] = new_dev; | |
757 | } | |
758 | ||
759 | static void __init intel_scu_i2c_device_register(int bus, | |
760 | struct i2c_board_info *idev) | |
761 | { | |
762 | struct i2c_board_info *new_dev; | |
763 | ||
764 | if (i2c_next_dev == MAX_SCU_I2C) { | |
765 | pr_err("too many SCU I2C devices"); | |
766 | return; | |
767 | } | |
768 | ||
769 | new_dev = kzalloc(sizeof(*idev), GFP_KERNEL); | |
770 | if (!new_dev) { | |
771 | pr_err("failed to alloc mem for delayed i2c dev %s\n", | |
772 | idev->type); | |
773 | return; | |
774 | } | |
775 | memcpy(new_dev, idev, sizeof(*idev)); | |
776 | ||
777 | i2c_bus[i2c_next_dev] = bus; | |
778 | i2c_devs[i2c_next_dev++] = new_dev; | |
779 | } | |
780 | ||
42c2544b AC |
781 | BLOCKING_NOTIFIER_HEAD(intel_scu_notifier); |
782 | EXPORT_SYMBOL_GPL(intel_scu_notifier); | |
783 | ||
1da4b1c6 | 784 | /* Called by IPC driver */ |
a18e3690 | 785 | void intel_scu_devices_create(void) |
1da4b1c6 FT |
786 | { |
787 | int i; | |
788 | ||
789 | for (i = 0; i < ipc_next_dev; i++) | |
790 | platform_device_add(ipc_devs[i]); | |
791 | ||
792 | for (i = 0; i < spi_next_dev; i++) | |
793 | spi_register_board_info(spi_devs[i], 1); | |
794 | ||
795 | for (i = 0; i < i2c_next_dev; i++) { | |
796 | struct i2c_adapter *adapter; | |
797 | struct i2c_client *client; | |
798 | ||
799 | adapter = i2c_get_adapter(i2c_bus[i]); | |
800 | if (adapter) { | |
801 | client = i2c_new_device(adapter, i2c_devs[i]); | |
802 | if (!client) | |
803 | pr_err("can't create i2c device %s\n", | |
804 | i2c_devs[i]->type); | |
805 | } else | |
806 | i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1); | |
807 | } | |
d0d3bc65 | 808 | intel_scu_notifier_post(SCU_AVAILABLE, NULL); |
1da4b1c6 FT |
809 | } |
810 | EXPORT_SYMBOL_GPL(intel_scu_devices_create); | |
811 | ||
812 | /* Called by IPC driver */ | |
813 | void intel_scu_devices_destroy(void) | |
814 | { | |
815 | int i; | |
816 | ||
d0d3bc65 | 817 | intel_scu_notifier_post(SCU_DOWN, NULL); |
42c2544b | 818 | |
1da4b1c6 FT |
819 | for (i = 0; i < ipc_next_dev; i++) |
820 | platform_device_del(ipc_devs[i]); | |
821 | } | |
822 | EXPORT_SYMBOL_GPL(intel_scu_devices_destroy); | |
823 | ||
824 | static void __init install_irq_resource(struct platform_device *pdev, int irq) | |
825 | { | |
826 | /* Single threaded */ | |
827 | static struct resource __initdata res = { | |
828 | .name = "IRQ", | |
829 | .flags = IORESOURCE_IRQ, | |
830 | }; | |
831 | res.start = irq; | |
832 | platform_device_add_resources(pdev, &res, 1); | |
833 | } | |
834 | ||
360545c1 | 835 | static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry) |
1da4b1c6 FT |
836 | { |
837 | const struct devs_id *dev = device_ids; | |
360545c1 | 838 | struct platform_device *pdev; |
1da4b1c6 FT |
839 | void *pdata = NULL; |
840 | ||
841 | while (dev->name[0]) { | |
842 | if (dev->type == SFI_DEV_TYPE_IPC && | |
360545c1 MW |
843 | !strncmp(dev->name, entry->name, SFI_NAME_LEN)) { |
844 | pdata = dev->get_platform_data(entry); | |
1da4b1c6 FT |
845 | break; |
846 | } | |
847 | dev++; | |
848 | } | |
360545c1 MW |
849 | |
850 | /* | |
851 | * On Medfield the platform device creation is handled by the MSIC | |
852 | * MFD driver so we don't need to do it here. | |
853 | */ | |
854 | if (mrst_has_msic()) | |
855 | return; | |
856 | ||
54b0264e | 857 | pdev = platform_device_alloc(entry->name, 0); |
360545c1 MW |
858 | if (pdev == NULL) { |
859 | pr_err("out of memory for SFI platform device '%s'.\n", | |
860 | entry->name); | |
861 | return; | |
862 | } | |
863 | install_irq_resource(pdev, entry->irq); | |
864 | ||
1da4b1c6 FT |
865 | pdev->dev.platform_data = pdata; |
866 | intel_scu_device_register(pdev); | |
867 | } | |
868 | ||
869 | static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info) | |
870 | { | |
871 | const struct devs_id *dev = device_ids; | |
872 | void *pdata = NULL; | |
873 | ||
874 | while (dev->name[0]) { | |
875 | if (dev->type == SFI_DEV_TYPE_SPI && | |
876 | !strncmp(dev->name, spi_info->modalias, SFI_NAME_LEN)) { | |
877 | pdata = dev->get_platform_data(spi_info); | |
878 | break; | |
879 | } | |
880 | dev++; | |
881 | } | |
882 | spi_info->platform_data = pdata; | |
883 | if (dev->delay) | |
884 | intel_scu_spi_device_register(spi_info); | |
885 | else | |
886 | spi_register_board_info(spi_info, 1); | |
887 | } | |
888 | ||
889 | static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info) | |
890 | { | |
891 | const struct devs_id *dev = device_ids; | |
892 | void *pdata = NULL; | |
893 | ||
894 | while (dev->name[0]) { | |
895 | if (dev->type == SFI_DEV_TYPE_I2C && | |
896 | !strncmp(dev->name, i2c_info->type, SFI_NAME_LEN)) { | |
897 | pdata = dev->get_platform_data(i2c_info); | |
898 | break; | |
899 | } | |
900 | dev++; | |
901 | } | |
902 | i2c_info->platform_data = pdata; | |
903 | ||
904 | if (dev->delay) | |
905 | intel_scu_i2c_device_register(bus, i2c_info); | |
906 | else | |
907 | i2c_register_board_info(bus, i2c_info, 1); | |
908 | } | |
909 | ||
910 | ||
911 | static int __init sfi_parse_devs(struct sfi_table_header *table) | |
912 | { | |
913 | struct sfi_table_simple *sb; | |
914 | struct sfi_device_table_entry *pentry; | |
915 | struct spi_board_info spi_info; | |
916 | struct i2c_board_info i2c_info; | |
1da4b1c6 FT |
917 | int num, i, bus; |
918 | int ioapic; | |
919 | struct io_apic_irq_attr irq_attr; | |
920 | ||
921 | sb = (struct sfi_table_simple *)table; | |
922 | num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry); | |
923 | pentry = (struct sfi_device_table_entry *)sb->pentry; | |
924 | ||
925 | for (i = 0; i < num; i++, pentry++) { | |
153b19a3 MW |
926 | int irq = pentry->irq; |
927 | ||
928 | if (irq != (u8)0xff) { /* native RTE case */ | |
1da4b1c6 FT |
929 | /* these SPI2 devices are not exposed to system as PCI |
930 | * devices, but they have separate RTE entry in IOAPIC | |
931 | * so we have to enable them one by one here | |
932 | */ | |
153b19a3 | 933 | ioapic = mp_find_ioapic(irq); |
1da4b1c6 | 934 | irq_attr.ioapic = ioapic; |
153b19a3 | 935 | irq_attr.ioapic_pin = irq; |
1da4b1c6 FT |
936 | irq_attr.trigger = 1; |
937 | irq_attr.polarity = 1; | |
153b19a3 | 938 | io_apic_set_pci_routing(NULL, irq, &irq_attr); |
a94cc4e6 | 939 | } else |
153b19a3 | 940 | irq = 0; /* No irq */ |
a94cc4e6 | 941 | |
1da4b1c6 FT |
942 | switch (pentry->type) { |
943 | case SFI_DEV_TYPE_IPC: | |
1da4b1c6 | 944 | pr_debug("info[%2d]: IPC bus, name = %16.16s, " |
360545c1 MW |
945 | "irq = 0x%2x\n", i, pentry->name, pentry->irq); |
946 | sfi_handle_ipc_dev(pentry); | |
1da4b1c6 FT |
947 | break; |
948 | case SFI_DEV_TYPE_SPI: | |
949 | memset(&spi_info, 0, sizeof(spi_info)); | |
950 | strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN); | |
153b19a3 | 951 | spi_info.irq = irq; |
1da4b1c6 FT |
952 | spi_info.bus_num = pentry->host_num; |
953 | spi_info.chip_select = pentry->addr; | |
954 | spi_info.max_speed_hz = pentry->max_freq; | |
955 | pr_debug("info[%2d]: SPI bus = %d, name = %16.16s, " | |
956 | "irq = 0x%2x, max_freq = %d, cs = %d\n", i, | |
957 | spi_info.bus_num, | |
958 | spi_info.modalias, | |
959 | spi_info.irq, | |
960 | spi_info.max_speed_hz, | |
961 | spi_info.chip_select); | |
962 | sfi_handle_spi_dev(&spi_info); | |
963 | break; | |
964 | case SFI_DEV_TYPE_I2C: | |
965 | memset(&i2c_info, 0, sizeof(i2c_info)); | |
966 | bus = pentry->host_num; | |
967 | strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN); | |
153b19a3 | 968 | i2c_info.irq = irq; |
1da4b1c6 FT |
969 | i2c_info.addr = pentry->addr; |
970 | pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, " | |
971 | "irq = 0x%2x, addr = 0x%x\n", i, bus, | |
972 | i2c_info.type, | |
973 | i2c_info.irq, | |
974 | i2c_info.addr); | |
975 | sfi_handle_i2c_dev(bus, &i2c_info); | |
976 | break; | |
977 | case SFI_DEV_TYPE_UART: | |
978 | case SFI_DEV_TYPE_HSI: | |
979 | default: | |
980 | ; | |
981 | } | |
982 | } | |
983 | return 0; | |
984 | } | |
985 | ||
986 | static int __init mrst_platform_init(void) | |
987 | { | |
988 | sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio); | |
989 | sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs); | |
990 | return 0; | |
991 | } | |
992 | arch_initcall(mrst_platform_init); | |
993 | ||
994 | /* | |
995 | * we will search these buttons in SFI GPIO table (by name) | |
996 | * and register them dynamically. Please add all possible | |
997 | * buttons here, we will shrink them if no GPIO found. | |
998 | */ | |
999 | static struct gpio_keys_button gpio_button[] = { | |
1000 | {KEY_POWER, -1, 1, "power_btn", EV_KEY, 0, 3000}, | |
1001 | {KEY_PROG1, -1, 1, "prog_btn1", EV_KEY, 0, 20}, | |
1002 | {KEY_PROG2, -1, 1, "prog_btn2", EV_KEY, 0, 20}, | |
1003 | {SW_LID, -1, 1, "lid_switch", EV_SW, 0, 20}, | |
1004 | {KEY_VOLUMEUP, -1, 1, "vol_up", EV_KEY, 0, 20}, | |
1005 | {KEY_VOLUMEDOWN, -1, 1, "vol_down", EV_KEY, 0, 20}, | |
1006 | {KEY_CAMERA, -1, 1, "camera_full", EV_KEY, 0, 20}, | |
1007 | {KEY_CAMERA_FOCUS, -1, 1, "camera_half", EV_KEY, 0, 20}, | |
1008 | {SW_KEYPAD_SLIDE, -1, 1, "MagSw1", EV_SW, 0, 20}, | |
1009 | {SW_KEYPAD_SLIDE, -1, 1, "MagSw2", EV_SW, 0, 20}, | |
1010 | }; | |
1011 | ||
1012 | static struct gpio_keys_platform_data mrst_gpio_keys = { | |
1013 | .buttons = gpio_button, | |
1014 | .rep = 1, | |
1015 | .nbuttons = -1, /* will fill it after search */ | |
1016 | }; | |
1017 | ||
1018 | static struct platform_device pb_device = { | |
1019 | .name = "gpio-keys", | |
1020 | .id = -1, | |
1021 | .dev = { | |
1022 | .platform_data = &mrst_gpio_keys, | |
1023 | }, | |
1024 | }; | |
1025 | ||
1026 | /* | |
1027 | * Shrink the non-existent buttons, register the gpio button | |
1028 | * device if there is some | |
1029 | */ | |
1030 | static int __init pb_keys_init(void) | |
1031 | { | |
1032 | struct gpio_keys_button *gb = gpio_button; | |
1033 | int i, num, good = 0; | |
1034 | ||
1035 | num = sizeof(gpio_button) / sizeof(struct gpio_keys_button); | |
1036 | for (i = 0; i < num; i++) { | |
1037 | gb[i].gpio = get_gpio_by_name(gb[i].desc); | |
d79a8869 | 1038 | pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc, gb[i].gpio); |
1da4b1c6 FT |
1039 | if (gb[i].gpio == -1) |
1040 | continue; | |
1041 | ||
1042 | if (i != good) | |
1043 | gb[good] = gb[i]; | |
1044 | good++; | |
1045 | } | |
1046 | ||
1047 | if (good) { | |
1048 | mrst_gpio_keys.nbuttons = good; | |
1049 | return platform_device_register(&pb_device); | |
1050 | } | |
1051 | return 0; | |
1052 | } | |
1053 | late_initcall(pb_keys_init); |