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Merge branch 'pm-cpufreq-fixes'
[deliverable/linux.git] / drivers / mmc / host / sdhci-pci-core.c
1 /* linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface
2 *
3 * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or (at
8 * your option) any later version.
9 *
10 * Thanks to the following companies for their support:
11 *
12 * - JMicron (hardware and technical support)
13 */
14
15 #include <linux/delay.h>
16 #include <linux/highmem.h>
17 #include <linux/module.h>
18 #include <linux/pci.h>
19 #include <linux/dma-mapping.h>
20 #include <linux/slab.h>
21 #include <linux/device.h>
22 #include <linux/mmc/host.h>
23 #include <linux/mmc/mmc.h>
24 #include <linux/scatterlist.h>
25 #include <linux/io.h>
26 #include <linux/gpio.h>
27 #include <linux/pm_runtime.h>
28 #include <linux/mmc/slot-gpio.h>
29 #include <linux/mmc/sdhci-pci-data.h>
30
31 #include "sdhci.h"
32 #include "sdhci-pci.h"
33 #include "sdhci-pci-o2micro.h"
34
35 /*****************************************************************************\
36 * *
37 * Hardware specific quirk handling *
38 * *
39 \*****************************************************************************/
40
41 static int ricoh_probe(struct sdhci_pci_chip *chip)
42 {
43 if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG ||
44 chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY)
45 chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;
46 return 0;
47 }
48
49 static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot)
50 {
51 slot->host->caps =
52 ((0x21 << SDHCI_TIMEOUT_CLK_SHIFT)
53 & SDHCI_TIMEOUT_CLK_MASK) |
54
55 ((0x21 << SDHCI_CLOCK_BASE_SHIFT)
56 & SDHCI_CLOCK_BASE_MASK) |
57
58 SDHCI_TIMEOUT_CLK_UNIT |
59 SDHCI_CAN_VDD_330 |
60 SDHCI_CAN_DO_HISPD |
61 SDHCI_CAN_DO_SDMA;
62 return 0;
63 }
64
65 static int ricoh_mmc_resume(struct sdhci_pci_chip *chip)
66 {
67 /* Apply a delay to allow controller to settle */
68 /* Otherwise it becomes confused if card state changed
69 during suspend */
70 msleep(500);
71 return 0;
72 }
73
74 static const struct sdhci_pci_fixes sdhci_ricoh = {
75 .probe = ricoh_probe,
76 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
77 SDHCI_QUIRK_FORCE_DMA |
78 SDHCI_QUIRK_CLOCK_BEFORE_RESET,
79 };
80
81 static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
82 .probe_slot = ricoh_mmc_probe_slot,
83 .resume = ricoh_mmc_resume,
84 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
85 SDHCI_QUIRK_CLOCK_BEFORE_RESET |
86 SDHCI_QUIRK_NO_CARD_NO_RESET |
87 SDHCI_QUIRK_MISSING_CAPS
88 };
89
90 static const struct sdhci_pci_fixes sdhci_ene_712 = {
91 .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
92 SDHCI_QUIRK_BROKEN_DMA,
93 };
94
95 static const struct sdhci_pci_fixes sdhci_ene_714 = {
96 .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
97 SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |
98 SDHCI_QUIRK_BROKEN_DMA,
99 };
100
101 static const struct sdhci_pci_fixes sdhci_cafe = {
102 .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
103 SDHCI_QUIRK_NO_BUSY_IRQ |
104 SDHCI_QUIRK_BROKEN_CARD_DETECTION |
105 SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
106 };
107
108 static const struct sdhci_pci_fixes sdhci_intel_qrk = {
109 .quirks = SDHCI_QUIRK_NO_HISPD_BIT,
110 };
111
112 static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot)
113 {
114 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
115 return 0;
116 }
117
118 /*
119 * ADMA operation is disabled for Moorestown platform due to
120 * hardware bugs.
121 */
122 static int mrst_hc_probe(struct sdhci_pci_chip *chip)
123 {
124 /*
125 * slots number is fixed here for MRST as SDIO3/5 are never used and
126 * have hardware bugs.
127 */
128 chip->num_slots = 1;
129 return 0;
130 }
131
132 static int pch_hc_probe_slot(struct sdhci_pci_slot *slot)
133 {
134 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
135 return 0;
136 }
137
138 #ifdef CONFIG_PM
139
140 static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
141 {
142 struct sdhci_pci_slot *slot = dev_id;
143 struct sdhci_host *host = slot->host;
144
145 mmc_detect_change(host->mmc, msecs_to_jiffies(200));
146 return IRQ_HANDLED;
147 }
148
149 static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
150 {
151 int err, irq, gpio = slot->cd_gpio;
152
153 slot->cd_gpio = -EINVAL;
154 slot->cd_irq = -EINVAL;
155
156 if (!gpio_is_valid(gpio))
157 return;
158
159 err = gpio_request(gpio, "sd_cd");
160 if (err < 0)
161 goto out;
162
163 err = gpio_direction_input(gpio);
164 if (err < 0)
165 goto out_free;
166
167 irq = gpio_to_irq(gpio);
168 if (irq < 0)
169 goto out_free;
170
171 err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING |
172 IRQF_TRIGGER_FALLING, "sd_cd", slot);
173 if (err)
174 goto out_free;
175
176 slot->cd_gpio = gpio;
177 slot->cd_irq = irq;
178
179 return;
180
181 out_free:
182 gpio_free(gpio);
183 out:
184 dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
185 }
186
187 static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
188 {
189 if (slot->cd_irq >= 0)
190 free_irq(slot->cd_irq, slot);
191 if (gpio_is_valid(slot->cd_gpio))
192 gpio_free(slot->cd_gpio);
193 }
194
195 #else
196
197 static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
198 {
199 }
200
201 static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
202 {
203 }
204
205 #endif
206
207 static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
208 {
209 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
210 slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC |
211 MMC_CAP2_HC_ERASE_SZ;
212 return 0;
213 }
214
215 static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
216 {
217 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE;
218 return 0;
219 }
220
221 static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
222 .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
223 .probe_slot = mrst_hc_probe_slot,
224 };
225
226 static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
227 .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
228 .probe = mrst_hc_probe,
229 };
230
231 static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
232 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
233 .allow_runtime_pm = true,
234 .own_cd_for_runtime_pm = true,
235 };
236
237 static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
238 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
239 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
240 .allow_runtime_pm = true,
241 .probe_slot = mfd_sdio_probe_slot,
242 };
243
244 static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {
245 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
246 .allow_runtime_pm = true,
247 .probe_slot = mfd_emmc_probe_slot,
248 };
249
250 static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
251 .quirks = SDHCI_QUIRK_BROKEN_ADMA,
252 .probe_slot = pch_hc_probe_slot,
253 };
254
255 static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
256 {
257 u8 reg;
258
259 reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
260 reg |= 0x10;
261 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
262 /* For eMMC, minimum is 1us but give it 9us for good measure */
263 udelay(9);
264 reg &= ~0x10;
265 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
266 /* For eMMC, minimum is 200us but give it 300us for good measure */
267 usleep_range(300, 1000);
268 }
269
270 static int spt_select_drive_strength(struct sdhci_host *host,
271 struct mmc_card *card,
272 unsigned int max_dtr,
273 int host_drv, int card_drv, int *drv_type)
274 {
275 int drive_strength;
276
277 if (sdhci_pci_spt_drive_strength > 0)
278 drive_strength = sdhci_pci_spt_drive_strength & 0xf;
279 else
280 drive_strength = 0; /* Default 50-ohm */
281
282 if ((mmc_driver_type_mask(drive_strength) & card_drv) == 0)
283 drive_strength = 0; /* Default 50-ohm */
284
285 return drive_strength;
286 }
287
288 /* Try to read the drive strength from the card */
289 static void spt_read_drive_strength(struct sdhci_host *host)
290 {
291 u32 val, i, t;
292 u16 m;
293
294 if (sdhci_pci_spt_drive_strength)
295 return;
296
297 sdhci_pci_spt_drive_strength = -1;
298
299 m = sdhci_readw(host, SDHCI_HOST_CONTROL2) & 0x7;
300 if (m != 3 && m != 5)
301 return;
302 val = sdhci_readl(host, SDHCI_PRESENT_STATE);
303 if (val & 0x3)
304 return;
305 sdhci_writel(host, 0x007f0023, SDHCI_INT_ENABLE);
306 sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);
307 sdhci_writew(host, 0x10, SDHCI_TRANSFER_MODE);
308 sdhci_writeb(host, 0xe, SDHCI_TIMEOUT_CONTROL);
309 sdhci_writew(host, 512, SDHCI_BLOCK_SIZE);
310 sdhci_writew(host, 1, SDHCI_BLOCK_COUNT);
311 sdhci_writel(host, 0, SDHCI_ARGUMENT);
312 sdhci_writew(host, 0x83b, SDHCI_COMMAND);
313 for (i = 0; i < 1000; i++) {
314 val = sdhci_readl(host, SDHCI_INT_STATUS);
315 if (val & 0xffff8000)
316 return;
317 if (val & 0x20)
318 break;
319 udelay(1);
320 }
321 val = sdhci_readl(host, SDHCI_PRESENT_STATE);
322 if (!(val & 0x800))
323 return;
324 for (i = 0; i < 47; i++)
325 val = sdhci_readl(host, SDHCI_BUFFER);
326 t = val & 0xf00;
327 if (t != 0x200 && t != 0x300)
328 return;
329
330 sdhci_pci_spt_drive_strength = 0x10 | ((val >> 12) & 0xf);
331 }
332
333 static int bxt_get_cd(struct mmc_host *mmc)
334 {
335 int gpio_cd = mmc_gpio_get_cd(mmc);
336 struct sdhci_host *host = mmc_priv(mmc);
337 unsigned long flags;
338 int ret = 0;
339
340 if (!gpio_cd)
341 return 0;
342
343 spin_lock_irqsave(&host->lock, flags);
344
345 if (host->flags & SDHCI_DEVICE_DEAD)
346 goto out;
347
348 ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
349 out:
350 spin_unlock_irqrestore(&host->lock, flags);
351
352 return ret;
353 }
354
355 static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
356 {
357 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
358 MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
359 MMC_CAP_WAIT_WHILE_BUSY;
360 slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
361 slot->hw_reset = sdhci_pci_int_hw_reset;
362 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
363 slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
364 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_SPT_EMMC) {
365 spt_read_drive_strength(slot->host);
366 slot->select_drive_strength = spt_select_drive_strength;
367 }
368 return 0;
369 }
370
371 static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
372 {
373 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
374 MMC_CAP_WAIT_WHILE_BUSY;
375 return 0;
376 }
377
378 static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
379 {
380 slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY;
381 slot->cd_con_id = NULL;
382 slot->cd_idx = 0;
383 slot->cd_override_level = true;
384 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
385 slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
386 slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD) {
387 slot->host->mmc_host_ops.get_cd = bxt_get_cd;
388 slot->host->mmc->caps |= MMC_CAP_AGGRESSIVE_PM;
389 }
390
391 return 0;
392 }
393
394 static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
395 .allow_runtime_pm = true,
396 .probe_slot = byt_emmc_probe_slot,
397 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
398 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
399 SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
400 SDHCI_QUIRK2_STOP_WITH_TC,
401 };
402
403 static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
404 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
405 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
406 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
407 .allow_runtime_pm = true,
408 .probe_slot = byt_sdio_probe_slot,
409 };
410
411 static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
412 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
413 .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
414 SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
415 SDHCI_QUIRK2_STOP_WITH_TC,
416 .allow_runtime_pm = true,
417 .own_cd_for_runtime_pm = true,
418 .probe_slot = byt_sd_probe_slot,
419 };
420
421 /* Define Host controllers for Intel Merrifield platform */
422 #define INTEL_MRFL_EMMC_0 0
423 #define INTEL_MRFL_EMMC_1 1
424
425 static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot)
426 {
427 if ((PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_0) &&
428 (PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_1))
429 /* SD support is not ready yet */
430 return -ENODEV;
431
432 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
433 MMC_CAP_1_8V_DDR;
434
435 return 0;
436 }
437
438 static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = {
439 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
440 .quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
441 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
442 .allow_runtime_pm = true,
443 .probe_slot = intel_mrfl_mmc_probe_slot,
444 };
445
446 /* O2Micro extra registers */
447 #define O2_SD_LOCK_WP 0xD3
448 #define O2_SD_MULTI_VCC3V 0xEE
449 #define O2_SD_CLKREQ 0xEC
450 #define O2_SD_CAPS 0xE0
451 #define O2_SD_ADMA1 0xE2
452 #define O2_SD_ADMA2 0xE7
453 #define O2_SD_INF_MOD 0xF1
454
455 static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
456 {
457 u8 scratch;
458 int ret;
459
460 ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch);
461 if (ret)
462 return ret;
463
464 /*
465 * Turn PMOS on [bit 0], set over current detection to 2.4 V
466 * [bit 1:2] and enable over current debouncing [bit 6].
467 */
468 if (on)
469 scratch |= 0x47;
470 else
471 scratch &= ~0x47;
472
473 return pci_write_config_byte(chip->pdev, 0xAE, scratch);
474 }
475
476 static int jmicron_probe(struct sdhci_pci_chip *chip)
477 {
478 int ret;
479 u16 mmcdev = 0;
480
481 if (chip->pdev->revision == 0) {
482 chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR |
483 SDHCI_QUIRK_32BIT_DMA_SIZE |
484 SDHCI_QUIRK_32BIT_ADMA_SIZE |
485 SDHCI_QUIRK_RESET_AFTER_REQUEST |
486 SDHCI_QUIRK_BROKEN_SMALL_PIO;
487 }
488
489 /*
490 * JMicron chips can have two interfaces to the same hardware
491 * in order to work around limitations in Microsoft's driver.
492 * We need to make sure we only bind to one of them.
493 *
494 * This code assumes two things:
495 *
496 * 1. The PCI code adds subfunctions in order.
497 *
498 * 2. The MMC interface has a lower subfunction number
499 * than the SD interface.
500 */
501 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_SD)
502 mmcdev = PCI_DEVICE_ID_JMICRON_JMB38X_MMC;
503 else if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD)
504 mmcdev = PCI_DEVICE_ID_JMICRON_JMB388_ESD;
505
506 if (mmcdev) {
507 struct pci_dev *sd_dev;
508
509 sd_dev = NULL;
510 while ((sd_dev = pci_get_device(PCI_VENDOR_ID_JMICRON,
511 mmcdev, sd_dev)) != NULL) {
512 if ((PCI_SLOT(chip->pdev->devfn) ==
513 PCI_SLOT(sd_dev->devfn)) &&
514 (chip->pdev->bus == sd_dev->bus))
515 break;
516 }
517
518 if (sd_dev) {
519 pci_dev_put(sd_dev);
520 dev_info(&chip->pdev->dev, "Refusing to bind to "
521 "secondary interface.\n");
522 return -ENODEV;
523 }
524 }
525
526 /*
527 * JMicron chips need a bit of a nudge to enable the power
528 * output pins.
529 */
530 ret = jmicron_pmos(chip, 1);
531 if (ret) {
532 dev_err(&chip->pdev->dev, "Failure enabling card power\n");
533 return ret;
534 }
535
536 /* quirk for unsable RO-detection on JM388 chips */
537 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD ||
538 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
539 chip->quirks |= SDHCI_QUIRK_UNSTABLE_RO_DETECT;
540
541 return 0;
542 }
543
544 static void jmicron_enable_mmc(struct sdhci_host *host, int on)
545 {
546 u8 scratch;
547
548 scratch = readb(host->ioaddr + 0xC0);
549
550 if (on)
551 scratch |= 0x01;
552 else
553 scratch &= ~0x01;
554
555 writeb(scratch, host->ioaddr + 0xC0);
556 }
557
558 static int jmicron_probe_slot(struct sdhci_pci_slot *slot)
559 {
560 if (slot->chip->pdev->revision == 0) {
561 u16 version;
562
563 version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION);
564 version = (version & SDHCI_VENDOR_VER_MASK) >>
565 SDHCI_VENDOR_VER_SHIFT;
566
567 /*
568 * Older versions of the chip have lots of nasty glitches
569 * in the ADMA engine. It's best just to avoid it
570 * completely.
571 */
572 if (version < 0xAC)
573 slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
574 }
575
576 /* JM388 MMC doesn't support 1.8V while SD supports it */
577 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
578 slot->host->ocr_avail_sd = MMC_VDD_32_33 | MMC_VDD_33_34 |
579 MMC_VDD_29_30 | MMC_VDD_30_31 |
580 MMC_VDD_165_195; /* allow 1.8V */
581 slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 |
582 MMC_VDD_29_30 | MMC_VDD_30_31; /* no 1.8V for MMC */
583 }
584
585 /*
586 * The secondary interface requires a bit set to get the
587 * interrupts.
588 */
589 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
590 slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
591 jmicron_enable_mmc(slot->host, 1);
592
593 slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST;
594
595 return 0;
596 }
597
598 static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead)
599 {
600 if (dead)
601 return;
602
603 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
604 slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
605 jmicron_enable_mmc(slot->host, 0);
606 }
607
608 static int jmicron_suspend(struct sdhci_pci_chip *chip)
609 {
610 int i;
611
612 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
613 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
614 for (i = 0; i < chip->num_slots; i++)
615 jmicron_enable_mmc(chip->slots[i]->host, 0);
616 }
617
618 return 0;
619 }
620
621 static int jmicron_resume(struct sdhci_pci_chip *chip)
622 {
623 int ret, i;
624
625 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
626 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
627 for (i = 0; i < chip->num_slots; i++)
628 jmicron_enable_mmc(chip->slots[i]->host, 1);
629 }
630
631 ret = jmicron_pmos(chip, 1);
632 if (ret) {
633 dev_err(&chip->pdev->dev, "Failure enabling card power\n");
634 return ret;
635 }
636
637 return 0;
638 }
639
640 static const struct sdhci_pci_fixes sdhci_o2 = {
641 .probe = sdhci_pci_o2_probe,
642 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
643 .quirks2 = SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD,
644 .probe_slot = sdhci_pci_o2_probe_slot,
645 .resume = sdhci_pci_o2_resume,
646 };
647
648 static const struct sdhci_pci_fixes sdhci_jmicron = {
649 .probe = jmicron_probe,
650
651 .probe_slot = jmicron_probe_slot,
652 .remove_slot = jmicron_remove_slot,
653
654 .suspend = jmicron_suspend,
655 .resume = jmicron_resume,
656 };
657
658 /* SysKonnect CardBus2SDIO extra registers */
659 #define SYSKT_CTRL 0x200
660 #define SYSKT_RDFIFO_STAT 0x204
661 #define SYSKT_WRFIFO_STAT 0x208
662 #define SYSKT_POWER_DATA 0x20c
663 #define SYSKT_POWER_330 0xef
664 #define SYSKT_POWER_300 0xf8
665 #define SYSKT_POWER_184 0xcc
666 #define SYSKT_POWER_CMD 0x20d
667 #define SYSKT_POWER_START (1 << 7)
668 #define SYSKT_POWER_STATUS 0x20e
669 #define SYSKT_POWER_STATUS_OK (1 << 0)
670 #define SYSKT_BOARD_REV 0x210
671 #define SYSKT_CHIP_REV 0x211
672 #define SYSKT_CONF_DATA 0x212
673 #define SYSKT_CONF_DATA_1V8 (1 << 2)
674 #define SYSKT_CONF_DATA_2V5 (1 << 1)
675 #define SYSKT_CONF_DATA_3V3 (1 << 0)
676
677 static int syskt_probe(struct sdhci_pci_chip *chip)
678 {
679 if ((chip->pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
680 chip->pdev->class &= ~0x0000FF;
681 chip->pdev->class |= PCI_SDHCI_IFDMA;
682 }
683 return 0;
684 }
685
686 static int syskt_probe_slot(struct sdhci_pci_slot *slot)
687 {
688 int tm, ps;
689
690 u8 board_rev = readb(slot->host->ioaddr + SYSKT_BOARD_REV);
691 u8 chip_rev = readb(slot->host->ioaddr + SYSKT_CHIP_REV);
692 dev_info(&slot->chip->pdev->dev, "SysKonnect CardBus2SDIO, "
693 "board rev %d.%d, chip rev %d.%d\n",
694 board_rev >> 4, board_rev & 0xf,
695 chip_rev >> 4, chip_rev & 0xf);
696 if (chip_rev >= 0x20)
697 slot->host->quirks |= SDHCI_QUIRK_FORCE_DMA;
698
699 writeb(SYSKT_POWER_330, slot->host->ioaddr + SYSKT_POWER_DATA);
700 writeb(SYSKT_POWER_START, slot->host->ioaddr + SYSKT_POWER_CMD);
701 udelay(50);
702 tm = 10; /* Wait max 1 ms */
703 do {
704 ps = readw(slot->host->ioaddr + SYSKT_POWER_STATUS);
705 if (ps & SYSKT_POWER_STATUS_OK)
706 break;
707 udelay(100);
708 } while (--tm);
709 if (!tm) {
710 dev_err(&slot->chip->pdev->dev,
711 "power regulator never stabilized");
712 writeb(0, slot->host->ioaddr + SYSKT_POWER_CMD);
713 return -ENODEV;
714 }
715
716 return 0;
717 }
718
719 static const struct sdhci_pci_fixes sdhci_syskt = {
720 .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER,
721 .probe = syskt_probe,
722 .probe_slot = syskt_probe_slot,
723 };
724
725 static int via_probe(struct sdhci_pci_chip *chip)
726 {
727 if (chip->pdev->revision == 0x10)
728 chip->quirks |= SDHCI_QUIRK_DELAY_AFTER_POWER;
729
730 return 0;
731 }
732
733 static const struct sdhci_pci_fixes sdhci_via = {
734 .probe = via_probe,
735 };
736
737 static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
738 {
739 slot->host->mmc->caps2 |= MMC_CAP2_HS200;
740 return 0;
741 }
742
743 static const struct sdhci_pci_fixes sdhci_rtsx = {
744 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
745 SDHCI_QUIRK2_BROKEN_64_BIT_DMA |
746 SDHCI_QUIRK2_BROKEN_DDR50,
747 .probe_slot = rtsx_probe_slot,
748 };
749
750 /*AMD chipset generation*/
751 enum amd_chipset_gen {
752 AMD_CHIPSET_BEFORE_ML,
753 AMD_CHIPSET_CZ,
754 AMD_CHIPSET_NL,
755 AMD_CHIPSET_UNKNOWN,
756 };
757
758 static int amd_probe(struct sdhci_pci_chip *chip)
759 {
760 struct pci_dev *smbus_dev;
761 enum amd_chipset_gen gen;
762
763 smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
764 PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
765 if (smbus_dev) {
766 gen = AMD_CHIPSET_BEFORE_ML;
767 } else {
768 smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
769 PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
770 if (smbus_dev) {
771 if (smbus_dev->revision < 0x51)
772 gen = AMD_CHIPSET_CZ;
773 else
774 gen = AMD_CHIPSET_NL;
775 } else {
776 gen = AMD_CHIPSET_UNKNOWN;
777 }
778 }
779
780 if ((gen == AMD_CHIPSET_BEFORE_ML) || (gen == AMD_CHIPSET_CZ)) {
781 chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
782 chip->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
783 }
784
785 return 0;
786 }
787
788 static const struct sdhci_pci_fixes sdhci_amd = {
789 .probe = amd_probe,
790 };
791
792 static const struct pci_device_id pci_ids[] = {
793 {
794 .vendor = PCI_VENDOR_ID_RICOH,
795 .device = PCI_DEVICE_ID_RICOH_R5C822,
796 .subvendor = PCI_ANY_ID,
797 .subdevice = PCI_ANY_ID,
798 .driver_data = (kernel_ulong_t)&sdhci_ricoh,
799 },
800
801 {
802 .vendor = PCI_VENDOR_ID_RICOH,
803 .device = 0x843,
804 .subvendor = PCI_ANY_ID,
805 .subdevice = PCI_ANY_ID,
806 .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
807 },
808
809 {
810 .vendor = PCI_VENDOR_ID_RICOH,
811 .device = 0xe822,
812 .subvendor = PCI_ANY_ID,
813 .subdevice = PCI_ANY_ID,
814 .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
815 },
816
817 {
818 .vendor = PCI_VENDOR_ID_RICOH,
819 .device = 0xe823,
820 .subvendor = PCI_ANY_ID,
821 .subdevice = PCI_ANY_ID,
822 .driver_data = (kernel_ulong_t)&sdhci_ricoh_mmc,
823 },
824
825 {
826 .vendor = PCI_VENDOR_ID_ENE,
827 .device = PCI_DEVICE_ID_ENE_CB712_SD,
828 .subvendor = PCI_ANY_ID,
829 .subdevice = PCI_ANY_ID,
830 .driver_data = (kernel_ulong_t)&sdhci_ene_712,
831 },
832
833 {
834 .vendor = PCI_VENDOR_ID_ENE,
835 .device = PCI_DEVICE_ID_ENE_CB712_SD_2,
836 .subvendor = PCI_ANY_ID,
837 .subdevice = PCI_ANY_ID,
838 .driver_data = (kernel_ulong_t)&sdhci_ene_712,
839 },
840
841 {
842 .vendor = PCI_VENDOR_ID_ENE,
843 .device = PCI_DEVICE_ID_ENE_CB714_SD,
844 .subvendor = PCI_ANY_ID,
845 .subdevice = PCI_ANY_ID,
846 .driver_data = (kernel_ulong_t)&sdhci_ene_714,
847 },
848
849 {
850 .vendor = PCI_VENDOR_ID_ENE,
851 .device = PCI_DEVICE_ID_ENE_CB714_SD_2,
852 .subvendor = PCI_ANY_ID,
853 .subdevice = PCI_ANY_ID,
854 .driver_data = (kernel_ulong_t)&sdhci_ene_714,
855 },
856
857 {
858 .vendor = PCI_VENDOR_ID_MARVELL,
859 .device = PCI_DEVICE_ID_MARVELL_88ALP01_SD,
860 .subvendor = PCI_ANY_ID,
861 .subdevice = PCI_ANY_ID,
862 .driver_data = (kernel_ulong_t)&sdhci_cafe,
863 },
864
865 {
866 .vendor = PCI_VENDOR_ID_JMICRON,
867 .device = PCI_DEVICE_ID_JMICRON_JMB38X_SD,
868 .subvendor = PCI_ANY_ID,
869 .subdevice = PCI_ANY_ID,
870 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
871 },
872
873 {
874 .vendor = PCI_VENDOR_ID_JMICRON,
875 .device = PCI_DEVICE_ID_JMICRON_JMB38X_MMC,
876 .subvendor = PCI_ANY_ID,
877 .subdevice = PCI_ANY_ID,
878 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
879 },
880
881 {
882 .vendor = PCI_VENDOR_ID_JMICRON,
883 .device = PCI_DEVICE_ID_JMICRON_JMB388_SD,
884 .subvendor = PCI_ANY_ID,
885 .subdevice = PCI_ANY_ID,
886 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
887 },
888
889 {
890 .vendor = PCI_VENDOR_ID_JMICRON,
891 .device = PCI_DEVICE_ID_JMICRON_JMB388_ESD,
892 .subvendor = PCI_ANY_ID,
893 .subdevice = PCI_ANY_ID,
894 .driver_data = (kernel_ulong_t)&sdhci_jmicron,
895 },
896
897 {
898 .vendor = PCI_VENDOR_ID_SYSKONNECT,
899 .device = 0x8000,
900 .subvendor = PCI_ANY_ID,
901 .subdevice = PCI_ANY_ID,
902 .driver_data = (kernel_ulong_t)&sdhci_syskt,
903 },
904
905 {
906 .vendor = PCI_VENDOR_ID_VIA,
907 .device = 0x95d0,
908 .subvendor = PCI_ANY_ID,
909 .subdevice = PCI_ANY_ID,
910 .driver_data = (kernel_ulong_t)&sdhci_via,
911 },
912
913 {
914 .vendor = PCI_VENDOR_ID_REALTEK,
915 .device = 0x5250,
916 .subvendor = PCI_ANY_ID,
917 .subdevice = PCI_ANY_ID,
918 .driver_data = (kernel_ulong_t)&sdhci_rtsx,
919 },
920
921 {
922 .vendor = PCI_VENDOR_ID_INTEL,
923 .device = PCI_DEVICE_ID_INTEL_QRK_SD,
924 .subvendor = PCI_ANY_ID,
925 .subdevice = PCI_ANY_ID,
926 .driver_data = (kernel_ulong_t)&sdhci_intel_qrk,
927 },
928
929 {
930 .vendor = PCI_VENDOR_ID_INTEL,
931 .device = PCI_DEVICE_ID_INTEL_MRST_SD0,
932 .subvendor = PCI_ANY_ID,
933 .subdevice = PCI_ANY_ID,
934 .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc0,
935 },
936
937 {
938 .vendor = PCI_VENDOR_ID_INTEL,
939 .device = PCI_DEVICE_ID_INTEL_MRST_SD1,
940 .subvendor = PCI_ANY_ID,
941 .subdevice = PCI_ANY_ID,
942 .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2,
943 },
944
945 {
946 .vendor = PCI_VENDOR_ID_INTEL,
947 .device = PCI_DEVICE_ID_INTEL_MRST_SD2,
948 .subvendor = PCI_ANY_ID,
949 .subdevice = PCI_ANY_ID,
950 .driver_data = (kernel_ulong_t)&sdhci_intel_mrst_hc1_hc2,
951 },
952
953 {
954 .vendor = PCI_VENDOR_ID_INTEL,
955 .device = PCI_DEVICE_ID_INTEL_MFD_SD,
956 .subvendor = PCI_ANY_ID,
957 .subdevice = PCI_ANY_ID,
958 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd,
959 },
960
961 {
962 .vendor = PCI_VENDOR_ID_INTEL,
963 .device = PCI_DEVICE_ID_INTEL_MFD_SDIO1,
964 .subvendor = PCI_ANY_ID,
965 .subdevice = PCI_ANY_ID,
966 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
967 },
968
969 {
970 .vendor = PCI_VENDOR_ID_INTEL,
971 .device = PCI_DEVICE_ID_INTEL_MFD_SDIO2,
972 .subvendor = PCI_ANY_ID,
973 .subdevice = PCI_ANY_ID,
974 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
975 },
976
977 {
978 .vendor = PCI_VENDOR_ID_INTEL,
979 .device = PCI_DEVICE_ID_INTEL_MFD_EMMC0,
980 .subvendor = PCI_ANY_ID,
981 .subdevice = PCI_ANY_ID,
982 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
983 },
984
985 {
986 .vendor = PCI_VENDOR_ID_INTEL,
987 .device = PCI_DEVICE_ID_INTEL_MFD_EMMC1,
988 .subvendor = PCI_ANY_ID,
989 .subdevice = PCI_ANY_ID,
990 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
991 },
992
993 {
994 .vendor = PCI_VENDOR_ID_INTEL,
995 .device = PCI_DEVICE_ID_INTEL_PCH_SDIO0,
996 .subvendor = PCI_ANY_ID,
997 .subdevice = PCI_ANY_ID,
998 .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
999 },
1000
1001 {
1002 .vendor = PCI_VENDOR_ID_INTEL,
1003 .device = PCI_DEVICE_ID_INTEL_PCH_SDIO1,
1004 .subvendor = PCI_ANY_ID,
1005 .subdevice = PCI_ANY_ID,
1006 .driver_data = (kernel_ulong_t)&sdhci_intel_pch_sdio,
1007 },
1008
1009 {
1010 .vendor = PCI_VENDOR_ID_INTEL,
1011 .device = PCI_DEVICE_ID_INTEL_BYT_EMMC,
1012 .subvendor = PCI_ANY_ID,
1013 .subdevice = PCI_ANY_ID,
1014 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1015 },
1016
1017 {
1018 .vendor = PCI_VENDOR_ID_INTEL,
1019 .device = PCI_DEVICE_ID_INTEL_BYT_SDIO,
1020 .subvendor = PCI_ANY_ID,
1021 .subdevice = PCI_ANY_ID,
1022 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1023 },
1024
1025 {
1026 .vendor = PCI_VENDOR_ID_INTEL,
1027 .device = PCI_DEVICE_ID_INTEL_BYT_SD,
1028 .subvendor = PCI_ANY_ID,
1029 .subdevice = PCI_ANY_ID,
1030 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1031 },
1032
1033 {
1034 .vendor = PCI_VENDOR_ID_INTEL,
1035 .device = PCI_DEVICE_ID_INTEL_BYT_EMMC2,
1036 .subvendor = PCI_ANY_ID,
1037 .subdevice = PCI_ANY_ID,
1038 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1039 },
1040
1041 {
1042 .vendor = PCI_VENDOR_ID_INTEL,
1043 .device = PCI_DEVICE_ID_INTEL_BSW_EMMC,
1044 .subvendor = PCI_ANY_ID,
1045 .subdevice = PCI_ANY_ID,
1046 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1047 },
1048
1049 {
1050 .vendor = PCI_VENDOR_ID_INTEL,
1051 .device = PCI_DEVICE_ID_INTEL_BSW_SDIO,
1052 .subvendor = PCI_ANY_ID,
1053 .subdevice = PCI_ANY_ID,
1054 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1055 },
1056
1057 {
1058 .vendor = PCI_VENDOR_ID_INTEL,
1059 .device = PCI_DEVICE_ID_INTEL_BSW_SD,
1060 .subvendor = PCI_ANY_ID,
1061 .subdevice = PCI_ANY_ID,
1062 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1063 },
1064
1065 {
1066 .vendor = PCI_VENDOR_ID_INTEL,
1067 .device = PCI_DEVICE_ID_INTEL_CLV_SDIO0,
1068 .subvendor = PCI_ANY_ID,
1069 .subdevice = PCI_ANY_ID,
1070 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sd,
1071 },
1072
1073 {
1074 .vendor = PCI_VENDOR_ID_INTEL,
1075 .device = PCI_DEVICE_ID_INTEL_CLV_SDIO1,
1076 .subvendor = PCI_ANY_ID,
1077 .subdevice = PCI_ANY_ID,
1078 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
1079 },
1080
1081 {
1082 .vendor = PCI_VENDOR_ID_INTEL,
1083 .device = PCI_DEVICE_ID_INTEL_CLV_SDIO2,
1084 .subvendor = PCI_ANY_ID,
1085 .subdevice = PCI_ANY_ID,
1086 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_sdio,
1087 },
1088
1089 {
1090 .vendor = PCI_VENDOR_ID_INTEL,
1091 .device = PCI_DEVICE_ID_INTEL_CLV_EMMC0,
1092 .subvendor = PCI_ANY_ID,
1093 .subdevice = PCI_ANY_ID,
1094 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
1095 },
1096
1097 {
1098 .vendor = PCI_VENDOR_ID_INTEL,
1099 .device = PCI_DEVICE_ID_INTEL_CLV_EMMC1,
1100 .subvendor = PCI_ANY_ID,
1101 .subdevice = PCI_ANY_ID,
1102 .driver_data = (kernel_ulong_t)&sdhci_intel_mfd_emmc,
1103 },
1104
1105 {
1106 .vendor = PCI_VENDOR_ID_INTEL,
1107 .device = PCI_DEVICE_ID_INTEL_MRFL_MMC,
1108 .subvendor = PCI_ANY_ID,
1109 .subdevice = PCI_ANY_ID,
1110 .driver_data = (kernel_ulong_t)&sdhci_intel_mrfl_mmc,
1111 },
1112
1113 {
1114 .vendor = PCI_VENDOR_ID_INTEL,
1115 .device = PCI_DEVICE_ID_INTEL_SPT_EMMC,
1116 .subvendor = PCI_ANY_ID,
1117 .subdevice = PCI_ANY_ID,
1118 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1119 },
1120
1121 {
1122 .vendor = PCI_VENDOR_ID_INTEL,
1123 .device = PCI_DEVICE_ID_INTEL_SPT_SDIO,
1124 .subvendor = PCI_ANY_ID,
1125 .subdevice = PCI_ANY_ID,
1126 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1127 },
1128
1129 {
1130 .vendor = PCI_VENDOR_ID_INTEL,
1131 .device = PCI_DEVICE_ID_INTEL_SPT_SD,
1132 .subvendor = PCI_ANY_ID,
1133 .subdevice = PCI_ANY_ID,
1134 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1135 },
1136
1137 {
1138 .vendor = PCI_VENDOR_ID_INTEL,
1139 .device = PCI_DEVICE_ID_INTEL_DNV_EMMC,
1140 .subvendor = PCI_ANY_ID,
1141 .subdevice = PCI_ANY_ID,
1142 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1143 },
1144
1145 {
1146 .vendor = PCI_VENDOR_ID_INTEL,
1147 .device = PCI_DEVICE_ID_INTEL_BXT_EMMC,
1148 .subvendor = PCI_ANY_ID,
1149 .subdevice = PCI_ANY_ID,
1150 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1151 },
1152
1153 {
1154 .vendor = PCI_VENDOR_ID_INTEL,
1155 .device = PCI_DEVICE_ID_INTEL_BXT_SDIO,
1156 .subvendor = PCI_ANY_ID,
1157 .subdevice = PCI_ANY_ID,
1158 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1159 },
1160
1161 {
1162 .vendor = PCI_VENDOR_ID_INTEL,
1163 .device = PCI_DEVICE_ID_INTEL_BXT_SD,
1164 .subvendor = PCI_ANY_ID,
1165 .subdevice = PCI_ANY_ID,
1166 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1167 },
1168
1169 {
1170 .vendor = PCI_VENDOR_ID_INTEL,
1171 .device = PCI_DEVICE_ID_INTEL_BXTM_EMMC,
1172 .subvendor = PCI_ANY_ID,
1173 .subdevice = PCI_ANY_ID,
1174 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1175 },
1176
1177 {
1178 .vendor = PCI_VENDOR_ID_INTEL,
1179 .device = PCI_DEVICE_ID_INTEL_BXTM_SDIO,
1180 .subvendor = PCI_ANY_ID,
1181 .subdevice = PCI_ANY_ID,
1182 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1183 },
1184
1185 {
1186 .vendor = PCI_VENDOR_ID_INTEL,
1187 .device = PCI_DEVICE_ID_INTEL_BXTM_SD,
1188 .subvendor = PCI_ANY_ID,
1189 .subdevice = PCI_ANY_ID,
1190 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1191 },
1192
1193 {
1194 .vendor = PCI_VENDOR_ID_INTEL,
1195 .device = PCI_DEVICE_ID_INTEL_APL_EMMC,
1196 .subvendor = PCI_ANY_ID,
1197 .subdevice = PCI_ANY_ID,
1198 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_emmc,
1199 },
1200
1201 {
1202 .vendor = PCI_VENDOR_ID_INTEL,
1203 .device = PCI_DEVICE_ID_INTEL_APL_SDIO,
1204 .subvendor = PCI_ANY_ID,
1205 .subdevice = PCI_ANY_ID,
1206 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sdio,
1207 },
1208
1209 {
1210 .vendor = PCI_VENDOR_ID_INTEL,
1211 .device = PCI_DEVICE_ID_INTEL_APL_SD,
1212 .subvendor = PCI_ANY_ID,
1213 .subdevice = PCI_ANY_ID,
1214 .driver_data = (kernel_ulong_t)&sdhci_intel_byt_sd,
1215 },
1216
1217 {
1218 .vendor = PCI_VENDOR_ID_O2,
1219 .device = PCI_DEVICE_ID_O2_8120,
1220 .subvendor = PCI_ANY_ID,
1221 .subdevice = PCI_ANY_ID,
1222 .driver_data = (kernel_ulong_t)&sdhci_o2,
1223 },
1224
1225 {
1226 .vendor = PCI_VENDOR_ID_O2,
1227 .device = PCI_DEVICE_ID_O2_8220,
1228 .subvendor = PCI_ANY_ID,
1229 .subdevice = PCI_ANY_ID,
1230 .driver_data = (kernel_ulong_t)&sdhci_o2,
1231 },
1232
1233 {
1234 .vendor = PCI_VENDOR_ID_O2,
1235 .device = PCI_DEVICE_ID_O2_8221,
1236 .subvendor = PCI_ANY_ID,
1237 .subdevice = PCI_ANY_ID,
1238 .driver_data = (kernel_ulong_t)&sdhci_o2,
1239 },
1240
1241 {
1242 .vendor = PCI_VENDOR_ID_O2,
1243 .device = PCI_DEVICE_ID_O2_8320,
1244 .subvendor = PCI_ANY_ID,
1245 .subdevice = PCI_ANY_ID,
1246 .driver_data = (kernel_ulong_t)&sdhci_o2,
1247 },
1248
1249 {
1250 .vendor = PCI_VENDOR_ID_O2,
1251 .device = PCI_DEVICE_ID_O2_8321,
1252 .subvendor = PCI_ANY_ID,
1253 .subdevice = PCI_ANY_ID,
1254 .driver_data = (kernel_ulong_t)&sdhci_o2,
1255 },
1256
1257 {
1258 .vendor = PCI_VENDOR_ID_O2,
1259 .device = PCI_DEVICE_ID_O2_FUJIN2,
1260 .subvendor = PCI_ANY_ID,
1261 .subdevice = PCI_ANY_ID,
1262 .driver_data = (kernel_ulong_t)&sdhci_o2,
1263 },
1264
1265 {
1266 .vendor = PCI_VENDOR_ID_O2,
1267 .device = PCI_DEVICE_ID_O2_SDS0,
1268 .subvendor = PCI_ANY_ID,
1269 .subdevice = PCI_ANY_ID,
1270 .driver_data = (kernel_ulong_t)&sdhci_o2,
1271 },
1272
1273 {
1274 .vendor = PCI_VENDOR_ID_O2,
1275 .device = PCI_DEVICE_ID_O2_SDS1,
1276 .subvendor = PCI_ANY_ID,
1277 .subdevice = PCI_ANY_ID,
1278 .driver_data = (kernel_ulong_t)&sdhci_o2,
1279 },
1280
1281 {
1282 .vendor = PCI_VENDOR_ID_O2,
1283 .device = PCI_DEVICE_ID_O2_SEABIRD0,
1284 .subvendor = PCI_ANY_ID,
1285 .subdevice = PCI_ANY_ID,
1286 .driver_data = (kernel_ulong_t)&sdhci_o2,
1287 },
1288
1289 {
1290 .vendor = PCI_VENDOR_ID_O2,
1291 .device = PCI_DEVICE_ID_O2_SEABIRD1,
1292 .subvendor = PCI_ANY_ID,
1293 .subdevice = PCI_ANY_ID,
1294 .driver_data = (kernel_ulong_t)&sdhci_o2,
1295 },
1296 {
1297 .vendor = PCI_VENDOR_ID_AMD,
1298 .device = PCI_ANY_ID,
1299 .class = PCI_CLASS_SYSTEM_SDHCI << 8,
1300 .class_mask = 0xFFFF00,
1301 .subvendor = PCI_ANY_ID,
1302 .subdevice = PCI_ANY_ID,
1303 .driver_data = (kernel_ulong_t)&sdhci_amd,
1304 },
1305 { /* Generic SD host controller */
1306 PCI_DEVICE_CLASS((PCI_CLASS_SYSTEM_SDHCI << 8), 0xFFFF00)
1307 },
1308
1309 { /* end: all zeroes */ },
1310 };
1311
1312 MODULE_DEVICE_TABLE(pci, pci_ids);
1313
1314 /*****************************************************************************\
1315 * *
1316 * SDHCI core callbacks *
1317 * *
1318 \*****************************************************************************/
1319
1320 static int sdhci_pci_enable_dma(struct sdhci_host *host)
1321 {
1322 struct sdhci_pci_slot *slot;
1323 struct pci_dev *pdev;
1324
1325 slot = sdhci_priv(host);
1326 pdev = slot->chip->pdev;
1327
1328 if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) &&
1329 ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) &&
1330 (host->flags & SDHCI_USE_SDMA)) {
1331 dev_warn(&pdev->dev, "Will use DMA mode even though HW "
1332 "doesn't fully claim to support it.\n");
1333 }
1334
1335 pci_set_master(pdev);
1336
1337 return 0;
1338 }
1339
1340 static void sdhci_pci_set_bus_width(struct sdhci_host *host, int width)
1341 {
1342 u8 ctrl;
1343
1344 ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);
1345
1346 switch (width) {
1347 case MMC_BUS_WIDTH_8:
1348 ctrl |= SDHCI_CTRL_8BITBUS;
1349 ctrl &= ~SDHCI_CTRL_4BITBUS;
1350 break;
1351 case MMC_BUS_WIDTH_4:
1352 ctrl |= SDHCI_CTRL_4BITBUS;
1353 ctrl &= ~SDHCI_CTRL_8BITBUS;
1354 break;
1355 default:
1356 ctrl &= ~(SDHCI_CTRL_8BITBUS | SDHCI_CTRL_4BITBUS);
1357 break;
1358 }
1359
1360 sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);
1361 }
1362
1363 static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
1364 {
1365 struct sdhci_pci_slot *slot = sdhci_priv(host);
1366 int rst_n_gpio = slot->rst_n_gpio;
1367
1368 if (!gpio_is_valid(rst_n_gpio))
1369 return;
1370 gpio_set_value_cansleep(rst_n_gpio, 0);
1371 /* For eMMC, minimum is 1us but give it 10us for good measure */
1372 udelay(10);
1373 gpio_set_value_cansleep(rst_n_gpio, 1);
1374 /* For eMMC, minimum is 200us but give it 300us for good measure */
1375 usleep_range(300, 1000);
1376 }
1377
1378 static void sdhci_pci_hw_reset(struct sdhci_host *host)
1379 {
1380 struct sdhci_pci_slot *slot = sdhci_priv(host);
1381
1382 if (slot->hw_reset)
1383 slot->hw_reset(host);
1384 }
1385
1386 static int sdhci_pci_select_drive_strength(struct sdhci_host *host,
1387 struct mmc_card *card,
1388 unsigned int max_dtr, int host_drv,
1389 int card_drv, int *drv_type)
1390 {
1391 struct sdhci_pci_slot *slot = sdhci_priv(host);
1392
1393 if (!slot->select_drive_strength)
1394 return 0;
1395
1396 return slot->select_drive_strength(host, card, max_dtr, host_drv,
1397 card_drv, drv_type);
1398 }
1399
1400 static const struct sdhci_ops sdhci_pci_ops = {
1401 .set_clock = sdhci_set_clock,
1402 .enable_dma = sdhci_pci_enable_dma,
1403 .set_bus_width = sdhci_pci_set_bus_width,
1404 .reset = sdhci_reset,
1405 .set_uhs_signaling = sdhci_set_uhs_signaling,
1406 .hw_reset = sdhci_pci_hw_reset,
1407 .select_drive_strength = sdhci_pci_select_drive_strength,
1408 };
1409
1410 /*****************************************************************************\
1411 * *
1412 * Suspend/resume *
1413 * *
1414 \*****************************************************************************/
1415
1416 #ifdef CONFIG_PM
1417
1418 static int sdhci_pci_suspend(struct device *dev)
1419 {
1420 struct pci_dev *pdev = to_pci_dev(dev);
1421 struct sdhci_pci_chip *chip;
1422 struct sdhci_pci_slot *slot;
1423 mmc_pm_flag_t slot_pm_flags;
1424 mmc_pm_flag_t pm_flags = 0;
1425 int i, ret;
1426
1427 chip = pci_get_drvdata(pdev);
1428 if (!chip)
1429 return 0;
1430
1431 for (i = 0; i < chip->num_slots; i++) {
1432 slot = chip->slots[i];
1433 if (!slot)
1434 continue;
1435
1436 ret = sdhci_suspend_host(slot->host);
1437
1438 if (ret)
1439 goto err_pci_suspend;
1440
1441 slot_pm_flags = slot->host->mmc->pm_flags;
1442 if (slot_pm_flags & MMC_PM_WAKE_SDIO_IRQ)
1443 sdhci_enable_irq_wakeups(slot->host);
1444
1445 pm_flags |= slot_pm_flags;
1446 }
1447
1448 if (chip->fixes && chip->fixes->suspend) {
1449 ret = chip->fixes->suspend(chip);
1450 if (ret)
1451 goto err_pci_suspend;
1452 }
1453
1454 if (pm_flags & MMC_PM_KEEP_POWER) {
1455 if (pm_flags & MMC_PM_WAKE_SDIO_IRQ)
1456 device_init_wakeup(dev, true);
1457 else
1458 device_init_wakeup(dev, false);
1459 } else
1460 device_init_wakeup(dev, false);
1461
1462 return 0;
1463
1464 err_pci_suspend:
1465 while (--i >= 0)
1466 sdhci_resume_host(chip->slots[i]->host);
1467 return ret;
1468 }
1469
1470 static int sdhci_pci_resume(struct device *dev)
1471 {
1472 struct pci_dev *pdev = to_pci_dev(dev);
1473 struct sdhci_pci_chip *chip;
1474 struct sdhci_pci_slot *slot;
1475 int i, ret;
1476
1477 chip = pci_get_drvdata(pdev);
1478 if (!chip)
1479 return 0;
1480
1481 if (chip->fixes && chip->fixes->resume) {
1482 ret = chip->fixes->resume(chip);
1483 if (ret)
1484 return ret;
1485 }
1486
1487 for (i = 0; i < chip->num_slots; i++) {
1488 slot = chip->slots[i];
1489 if (!slot)
1490 continue;
1491
1492 ret = sdhci_resume_host(slot->host);
1493 if (ret)
1494 return ret;
1495 }
1496
1497 return 0;
1498 }
1499
1500 static int sdhci_pci_runtime_suspend(struct device *dev)
1501 {
1502 struct pci_dev *pdev = to_pci_dev(dev);
1503 struct sdhci_pci_chip *chip;
1504 struct sdhci_pci_slot *slot;
1505 int i, ret;
1506
1507 chip = pci_get_drvdata(pdev);
1508 if (!chip)
1509 return 0;
1510
1511 for (i = 0; i < chip->num_slots; i++) {
1512 slot = chip->slots[i];
1513 if (!slot)
1514 continue;
1515
1516 ret = sdhci_runtime_suspend_host(slot->host);
1517
1518 if (ret)
1519 goto err_pci_runtime_suspend;
1520 }
1521
1522 if (chip->fixes && chip->fixes->suspend) {
1523 ret = chip->fixes->suspend(chip);
1524 if (ret)
1525 goto err_pci_runtime_suspend;
1526 }
1527
1528 return 0;
1529
1530 err_pci_runtime_suspend:
1531 while (--i >= 0)
1532 sdhci_runtime_resume_host(chip->slots[i]->host);
1533 return ret;
1534 }
1535
1536 static int sdhci_pci_runtime_resume(struct device *dev)
1537 {
1538 struct pci_dev *pdev = to_pci_dev(dev);
1539 struct sdhci_pci_chip *chip;
1540 struct sdhci_pci_slot *slot;
1541 int i, ret;
1542
1543 chip = pci_get_drvdata(pdev);
1544 if (!chip)
1545 return 0;
1546
1547 if (chip->fixes && chip->fixes->resume) {
1548 ret = chip->fixes->resume(chip);
1549 if (ret)
1550 return ret;
1551 }
1552
1553 for (i = 0; i < chip->num_slots; i++) {
1554 slot = chip->slots[i];
1555 if (!slot)
1556 continue;
1557
1558 ret = sdhci_runtime_resume_host(slot->host);
1559 if (ret)
1560 return ret;
1561 }
1562
1563 return 0;
1564 }
1565
1566 #else /* CONFIG_PM */
1567
1568 #define sdhci_pci_suspend NULL
1569 #define sdhci_pci_resume NULL
1570
1571 #endif /* CONFIG_PM */
1572
1573 static const struct dev_pm_ops sdhci_pci_pm_ops = {
1574 .suspend = sdhci_pci_suspend,
1575 .resume = sdhci_pci_resume,
1576 SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend,
1577 sdhci_pci_runtime_resume, NULL)
1578 };
1579
1580 /*****************************************************************************\
1581 * *
1582 * Device probing/removal *
1583 * *
1584 \*****************************************************************************/
1585
1586 static struct sdhci_pci_slot *sdhci_pci_probe_slot(
1587 struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar,
1588 int slotno)
1589 {
1590 struct sdhci_pci_slot *slot;
1591 struct sdhci_host *host;
1592 int ret, bar = first_bar + slotno;
1593
1594 if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
1595 dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
1596 return ERR_PTR(-ENODEV);
1597 }
1598
1599 if (pci_resource_len(pdev, bar) < 0x100) {
1600 dev_err(&pdev->dev, "Invalid iomem size. You may "
1601 "experience problems.\n");
1602 }
1603
1604 if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
1605 dev_err(&pdev->dev, "Vendor specific interface. Aborting.\n");
1606 return ERR_PTR(-ENODEV);
1607 }
1608
1609 if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) {
1610 dev_err(&pdev->dev, "Unknown interface. Aborting.\n");
1611 return ERR_PTR(-ENODEV);
1612 }
1613
1614 host = sdhci_alloc_host(&pdev->dev, sizeof(struct sdhci_pci_slot));
1615 if (IS_ERR(host)) {
1616 dev_err(&pdev->dev, "cannot allocate host\n");
1617 return ERR_CAST(host);
1618 }
1619
1620 slot = sdhci_priv(host);
1621
1622 slot->chip = chip;
1623 slot->host = host;
1624 slot->pci_bar = bar;
1625 slot->rst_n_gpio = -EINVAL;
1626 slot->cd_gpio = -EINVAL;
1627 slot->cd_idx = -1;
1628
1629 /* Retrieve platform data if there is any */
1630 if (*sdhci_pci_get_data)
1631 slot->data = sdhci_pci_get_data(pdev, slotno);
1632
1633 if (slot->data) {
1634 if (slot->data->setup) {
1635 ret = slot->data->setup(slot->data);
1636 if (ret) {
1637 dev_err(&pdev->dev, "platform setup failed\n");
1638 goto free;
1639 }
1640 }
1641 slot->rst_n_gpio = slot->data->rst_n_gpio;
1642 slot->cd_gpio = slot->data->cd_gpio;
1643 }
1644
1645 host->hw_name = "PCI";
1646 host->ops = &sdhci_pci_ops;
1647 host->quirks = chip->quirks;
1648 host->quirks2 = chip->quirks2;
1649
1650 host->irq = pdev->irq;
1651
1652 ret = pci_request_region(pdev, bar, mmc_hostname(host->mmc));
1653 if (ret) {
1654 dev_err(&pdev->dev, "cannot request region\n");
1655 goto cleanup;
1656 }
1657
1658 host->ioaddr = pci_ioremap_bar(pdev, bar);
1659 if (!host->ioaddr) {
1660 dev_err(&pdev->dev, "failed to remap registers\n");
1661 ret = -ENOMEM;
1662 goto release;
1663 }
1664
1665 if (chip->fixes && chip->fixes->probe_slot) {
1666 ret = chip->fixes->probe_slot(slot);
1667 if (ret)
1668 goto unmap;
1669 }
1670
1671 if (gpio_is_valid(slot->rst_n_gpio)) {
1672 if (!gpio_request(slot->rst_n_gpio, "eMMC_reset")) {
1673 gpio_direction_output(slot->rst_n_gpio, 1);
1674 slot->host->mmc->caps |= MMC_CAP_HW_RESET;
1675 slot->hw_reset = sdhci_pci_gpio_hw_reset;
1676 } else {
1677 dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
1678 slot->rst_n_gpio = -EINVAL;
1679 }
1680 }
1681
1682 host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ;
1683 host->mmc->slotno = slotno;
1684 host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
1685
1686 if (slot->cd_idx >= 0 &&
1687 mmc_gpiod_request_cd(host->mmc, slot->cd_con_id, slot->cd_idx,
1688 slot->cd_override_level, 0, NULL)) {
1689 dev_warn(&pdev->dev, "failed to setup card detect gpio\n");
1690 slot->cd_idx = -1;
1691 }
1692
1693 ret = sdhci_add_host(host);
1694 if (ret)
1695 goto remove;
1696
1697 sdhci_pci_add_own_cd(slot);
1698
1699 /*
1700 * Check if the chip needs a separate GPIO for card detect to wake up
1701 * from runtime suspend. If it is not there, don't allow runtime PM.
1702 * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
1703 */
1704 if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
1705 !gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0)
1706 chip->allow_runtime_pm = false;
1707
1708 return slot;
1709
1710 remove:
1711 if (gpio_is_valid(slot->rst_n_gpio))
1712 gpio_free(slot->rst_n_gpio);
1713
1714 if (chip->fixes && chip->fixes->remove_slot)
1715 chip->fixes->remove_slot(slot, 0);
1716
1717 unmap:
1718 iounmap(host->ioaddr);
1719
1720 release:
1721 pci_release_region(pdev, bar);
1722
1723 cleanup:
1724 if (slot->data && slot->data->cleanup)
1725 slot->data->cleanup(slot->data);
1726
1727 free:
1728 sdhci_free_host(host);
1729
1730 return ERR_PTR(ret);
1731 }
1732
1733 static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
1734 {
1735 int dead;
1736 u32 scratch;
1737
1738 sdhci_pci_remove_own_cd(slot);
1739
1740 dead = 0;
1741 scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS);
1742 if (scratch == (u32)-1)
1743 dead = 1;
1744
1745 sdhci_remove_host(slot->host, dead);
1746
1747 if (gpio_is_valid(slot->rst_n_gpio))
1748 gpio_free(slot->rst_n_gpio);
1749
1750 if (slot->chip->fixes && slot->chip->fixes->remove_slot)
1751 slot->chip->fixes->remove_slot(slot, dead);
1752
1753 if (slot->data && slot->data->cleanup)
1754 slot->data->cleanup(slot->data);
1755
1756 pci_release_region(slot->chip->pdev, slot->pci_bar);
1757
1758 sdhci_free_host(slot->host);
1759 }
1760
1761 static void sdhci_pci_runtime_pm_allow(struct device *dev)
1762 {
1763 pm_runtime_put_noidle(dev);
1764 pm_runtime_allow(dev);
1765 pm_runtime_set_autosuspend_delay(dev, 50);
1766 pm_runtime_use_autosuspend(dev);
1767 pm_suspend_ignore_children(dev, 1);
1768 }
1769
1770 static void sdhci_pci_runtime_pm_forbid(struct device *dev)
1771 {
1772 pm_runtime_forbid(dev);
1773 pm_runtime_get_noresume(dev);
1774 }
1775
1776 static int sdhci_pci_probe(struct pci_dev *pdev,
1777 const struct pci_device_id *ent)
1778 {
1779 struct sdhci_pci_chip *chip;
1780 struct sdhci_pci_slot *slot;
1781
1782 u8 slots, first_bar;
1783 int ret, i;
1784
1785 BUG_ON(pdev == NULL);
1786 BUG_ON(ent == NULL);
1787
1788 dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n",
1789 (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
1790
1791 ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
1792 if (ret)
1793 return ret;
1794
1795 slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
1796 dev_dbg(&pdev->dev, "found %d slot(s)\n", slots);
1797 if (slots == 0)
1798 return -ENODEV;
1799
1800 BUG_ON(slots > MAX_SLOTS);
1801
1802 ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
1803 if (ret)
1804 return ret;
1805
1806 first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
1807
1808 if (first_bar > 5) {
1809 dev_err(&pdev->dev, "Invalid first BAR. Aborting.\n");
1810 return -ENODEV;
1811 }
1812
1813 ret = pci_enable_device(pdev);
1814 if (ret)
1815 return ret;
1816
1817 chip = kzalloc(sizeof(struct sdhci_pci_chip), GFP_KERNEL);
1818 if (!chip) {
1819 ret = -ENOMEM;
1820 goto err;
1821 }
1822
1823 chip->pdev = pdev;
1824 chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;
1825 if (chip->fixes) {
1826 chip->quirks = chip->fixes->quirks;
1827 chip->quirks2 = chip->fixes->quirks2;
1828 chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;
1829 }
1830 chip->num_slots = slots;
1831
1832 pci_set_drvdata(pdev, chip);
1833
1834 if (chip->fixes && chip->fixes->probe) {
1835 ret = chip->fixes->probe(chip);
1836 if (ret)
1837 goto free;
1838 }
1839
1840 slots = chip->num_slots; /* Quirk may have changed this */
1841
1842 for (i = 0; i < slots; i++) {
1843 slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
1844 if (IS_ERR(slot)) {
1845 for (i--; i >= 0; i--)
1846 sdhci_pci_remove_slot(chip->slots[i]);
1847 ret = PTR_ERR(slot);
1848 goto free;
1849 }
1850
1851 chip->slots[i] = slot;
1852 }
1853
1854 if (chip->allow_runtime_pm)
1855 sdhci_pci_runtime_pm_allow(&pdev->dev);
1856
1857 return 0;
1858
1859 free:
1860 pci_set_drvdata(pdev, NULL);
1861 kfree(chip);
1862
1863 err:
1864 pci_disable_device(pdev);
1865 return ret;
1866 }
1867
1868 static void sdhci_pci_remove(struct pci_dev *pdev)
1869 {
1870 int i;
1871 struct sdhci_pci_chip *chip;
1872
1873 chip = pci_get_drvdata(pdev);
1874
1875 if (chip) {
1876 if (chip->allow_runtime_pm)
1877 sdhci_pci_runtime_pm_forbid(&pdev->dev);
1878
1879 for (i = 0; i < chip->num_slots; i++)
1880 sdhci_pci_remove_slot(chip->slots[i]);
1881
1882 pci_set_drvdata(pdev, NULL);
1883 kfree(chip);
1884 }
1885
1886 pci_disable_device(pdev);
1887 }
1888
1889 static struct pci_driver sdhci_driver = {
1890 .name = "sdhci-pci",
1891 .id_table = pci_ids,
1892 .probe = sdhci_pci_probe,
1893 .remove = sdhci_pci_remove,
1894 .driver = {
1895 .pm = &sdhci_pci_pm_ops
1896 },
1897 };
1898
1899 module_pci_driver(sdhci_driver);
1900
1901 MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
1902 MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
1903 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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