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2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771 
 kernel/drivers/mmc/core/sdio.c
....@@ -1,16 +1,11 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
12 /*
23  *  linux/drivers/mmc/sdio.c
34  *
45  *  Copyright 2006-2007 Pierre Ossman
5
- *
6
- * This program is free software; you can redistribute it and/or modify
7
- * it under the terms of the GNU General Public License as published by
8
- * the Free Software Foundation; either version 2 of the License, or (at
9
- * your option) any later version.
106  */
117 
128 #include <linux/err.h>
13
-#include <linux/module.h>
149 #include <linux/pm_runtime.h>
1510 
1611 #include <linux/mmc/host.h>
....@@ -31,6 +26,48 @@
3126 #include "sd_ops.h"
3227 #include "sdio_ops.h"
3328 #include "sdio_cis.h"
29
+
30
+MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor);
31
+MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device);
32
+MMC_DEV_ATTR(revision, "%u.%u\n", card->major_rev, card->minor_rev);
33
+MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr);
34
+MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
35
+
36
+#define sdio_info_attr(num)									\
37
+static ssize_t info##num##_show(struct device *dev, struct device_attribute *attr, char *buf)	\
38
+{												\
39
+	struct mmc_card *card = mmc_dev_to_card(dev);						\
40
+												\
41
+	if (num > card->num_info)								\
42
+		return -ENODATA;								\
43
+	if (!card->info[num-1][0])								\
44
+		return 0;									\
45
+	return sprintf(buf, "%s\n", card->info[num-1]);						\
46
+}												\
47
+static DEVICE_ATTR_RO(info##num)
48
+
49
+sdio_info_attr(1);
50
+sdio_info_attr(2);
51
+sdio_info_attr(3);
52
+sdio_info_attr(4);
53
+
54
+static struct attribute *sdio_std_attrs[] = {
55
+	&dev_attr_vendor.attr,
56
+	&dev_attr_device.attr,
57
+	&dev_attr_revision.attr,
58
+	&dev_attr_info1.attr,
59
+	&dev_attr_info2.attr,
60
+	&dev_attr_info3.attr,
61
+	&dev_attr_info4.attr,
62
+	&dev_attr_ocr.attr,
63
+	&dev_attr_rca.attr,
64
+	NULL,
65
+};
66
+ATTRIBUTE_GROUPS(sdio_std);
67
+
68
+static struct device_type sdio_type = {
69
+	.groups = sdio_std_groups,
70
+};
3471 
3572 static int sdio_read_fbr(struct sdio_func *func)
3673 {
....@@ -163,15 +200,18 @@
163200 			if (mmc_host_uhs(card->host)) {
164201 				if (data & SDIO_UHS_DDR50)
165202 					card->sw_caps.sd3_bus_mode
166
-						|= SD_MODE_UHS_DDR50;
203
+						|= SD_MODE_UHS_DDR50 | SD_MODE_UHS_SDR50
204
+							| SD_MODE_UHS_SDR25 | SD_MODE_UHS_SDR12;
167205 
168206 				if (data & SDIO_UHS_SDR50)
169207 					card->sw_caps.sd3_bus_mode
170
-						|= SD_MODE_UHS_SDR50;
208
+						|= SD_MODE_UHS_SDR50 | SD_MODE_UHS_SDR25
209
+							| SD_MODE_UHS_SDR12;
171210 
172211 				if (data & SDIO_UHS_SDR104)
173212 					card->sw_caps.sd3_bus_mode
174
-						|= SD_MODE_UHS_SDR104;
213
+						|= SD_MODE_UHS_SDR104 | SD_MODE_UHS_SDR50
214
+							| SD_MODE_UHS_SDR25 | SD_MODE_UHS_SDR12;
175215 			}
176216 
177217 			ret = mmc_io_rw_direct(card, 0, 0,
....@@ -290,30 +330,49 @@
290330 	return 0;
291331 }
292332 
333
+static int sdio_disable_4bit_bus(struct mmc_card *card)
334
+{
335
+	int err;
336
+
337
+	if (card->type == MMC_TYPE_SDIO)
338
+		goto out;
339
+
340
+	if (!(card->host->caps & MMC_CAP_4_BIT_DATA))
341
+		return 0;
342
+
343
+	if (!(card->scr.bus_widths & SD_SCR_BUS_WIDTH_4))
344
+		return 0;
345
+
346
+	err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_1);
347
+	if (err)
348
+		return err;
349
+
350
+out:
351
+	return sdio_disable_wide(card);
352
+}
353
+
293354 
294355 static int sdio_enable_4bit_bus(struct mmc_card *card)
295356 {
296357 	int err;
297358 
359
+	err = sdio_enable_wide(card);
360
+	if (err <= 0)
361
+		return err;
298362 	if (card->type == MMC_TYPE_SDIO)
299
-		err = sdio_enable_wide(card);
300
-	else if ((card->host->caps & MMC_CAP_4_BIT_DATA) &&
301
-		 (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4)) {
363
+		goto out;
364
+
365
+	if (card->scr.bus_widths & SD_SCR_BUS_WIDTH_4) {
302366 		err = mmc_app_set_bus_width(card, MMC_BUS_WIDTH_4);
303
-		if (err)
367
+		if (err) {
368
+			sdio_disable_wide(card);
304369 			return err;
305
-		err = sdio_enable_wide(card);
306
-		if (err <= 0)
307
-			mmc_app_set_bus_width(card, MMC_BUS_WIDTH_1);
308
-	} else
309
-		return 0;
310
-
311
-	if (err > 0) {
312
-		mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
313
-		err = 0;
370
+		}
314371 	}
372
+out:
373
+	mmc_set_bus_width(card->host, MMC_BUS_WIDTH_4);
315374 
316
-	return err;
375
+	return 0;
317376 }
318377 
319378 
....@@ -505,10 +564,8 @@
505564 	max_rate = min_not_zero(card->quirk_max_rate,
506565 				card->sw_caps.uhs_max_dtr);
507566 
508
-	if (bus_speed) {
509
-		mmc_set_timing(card->host, timing);
510
-		mmc_set_clock(card->host, max_rate);
511
-	}
567
+	mmc_set_timing(card->host, timing);
568
+	mmc_set_clock(card->host, max_rate);
512569 
513570 	return 0;
514571 }
....@@ -548,13 +605,33 @@
548605 	return err;
549606 }
550607 
551
-static void mmc_sdio_resend_if_cond(struct mmc_host *host,
552
-				    struct mmc_card *card)
608
+static int mmc_sdio_pre_init(struct mmc_host *host, u32 ocr,
609
+			     struct mmc_card *card)
553610 {
611
+	if (card)
612
+		mmc_remove_card(card);
613
+
614
+	/*
615
+	 * Reset the card by performing the same steps that are taken by
616
+	 * mmc_rescan_try_freq() and mmc_attach_sdio() during a "normal" probe.
617
+	 *
618
+	 * sdio_reset() is technically not needed. Having just powered up the
619
+	 * hardware, it should already be in reset state. However, some
620
+	 * platforms (such as SD8686 on OLPC) do not instantly cut power,
621
+	 * meaning that a reset is required when restoring power soon after
622
+	 * powering off. It is harmless in other cases.
623
+	 *
624
+	 * The CMD5 reset (mmc_send_io_op_cond()), according to the SDIO spec,
625
+	 * is not necessary for non-removable cards. However, it is required
626
+	 * for OLPC SD8686 (which expects a [CMD5,5,3,7] init sequence), and
627
+	 * harmless in other situations.
628
+	 *
629
+	 */
630
+
554631 	sdio_reset(host);
555632 	mmc_go_idle(host);
556
-	mmc_send_if_cond(host, host->ocr_avail);
557
-	mmc_remove_card(card);
633
+	mmc_send_if_cond(host, ocr);
634
+	return mmc_send_io_op_cond(host, 0, NULL);
558635 }
559636 
560637 /*
....@@ -564,7 +641,7 @@
564641  * we're trying to reinitialise.
565642  */
566643 static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
567
-			      struct mmc_card *oldcard, int powered_resume)
644
+			      struct mmc_card *oldcard)
568645 {
569646 	struct mmc_card *card;
570647 	int err;
....@@ -587,25 +664,9 @@
587664 	/*
588665 	 * Inform the card of the voltage
589666 	 */
590
-#ifdef CONFIG_SDIO_KEEPALIVE
591
-	if (!(host->chip_alive)) {
592
-		if (!powered_resume) {
593
-			err = mmc_send_io_op_cond(host, ocr, &rocr);
594
-			if (err) {
595
-				pr_err("%s: mmc_send_io_op_cond() err=%d\n", __func__, err);
596
-				goto err;
597
-			}
598
-		}
599
-	} else {
600
-		rocr = 0xa0ffff00;
601
-	}
602
-#else
603
-	if (!powered_resume) {
604
-		err = mmc_send_io_op_cond(host, ocr, &rocr);
605
-		if (err)
606
-			goto err;
607
-	}
608
-#endif
667
+	err = mmc_send_io_op_cond(host, ocr, &rocr);
668
+	if (err)
669
+		return err;
609670 
610671 	/*
611672 	 * For SPI, enable CRC as appropriate.
....@@ -613,17 +674,15 @@
613674 	if (mmc_host_is_spi(host)) {
614675 		err = mmc_spi_set_crc(host, use_spi_crc);
615676 		if (err)
616
-			goto err;
677
+			return err;
617678 	}
618679 
619680 	/*
620681 	 * Allocate card structure.
621682 	 */
622
-	card = mmc_alloc_card(host, NULL);
623
-	if (IS_ERR(card)) {
624
-		err = PTR_ERR(card);
625
-		goto err;
626
-	}
683
+	card = mmc_alloc_card(host, &sdio_type);
684
+	if (IS_ERR(card))
685
+		return PTR_ERR(card);
627686 
628687 	if ((rocr & R4_MEMORY_PRESENT) &&
629688 	    mmc_sd_get_cid(host, ocr & rocr, card->raw_cid, NULL) == 0) {
....@@ -631,15 +690,15 @@
631690 
632691 		if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
633692 		    memcmp(card->raw_cid, oldcard->raw_cid, sizeof(card->raw_cid)) != 0)) {
634
-			mmc_remove_card(card);
635
-			return -ENOENT;
693
+			err = -ENOENT;
694
+			goto mismatch;
636695 		}
637696 	} else {
638697 		card->type = MMC_TYPE_SDIO;
639698 
640699 		if (oldcard && oldcard->type != MMC_TYPE_SDIO) {
641
-			mmc_remove_card(card);
642
-			return -ENOENT;
700
+			err = -ENOENT;
701
+			goto mismatch;
643702 		}
644703 	}
645704 
....@@ -662,10 +721,10 @@
662721 	 * try to init uhs card. sdio_read_cccr will take over this task
663722 	 * to make sure which speed mode should work.
664723 	 */
665
-	if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) {
724
+	if (rocr & ocr & R4_18V_PRESENT) {
666725 		err = mmc_set_uhs_voltage(host, ocr_card);
667726 		if (err == -EAGAIN) {
668
-			mmc_sdio_resend_if_cond(host, card);
727
+			mmc_sdio_pre_init(host, ocr_card, card);
669728 			retries--;
670729 			goto try_again;
671730 		} else if (err) {
....@@ -676,20 +735,10 @@
676735 	/*
677736 	 * For native busses:  set card RCA and quit open drain mode.
678737 	 */
679
-	if (!powered_resume && !mmc_host_is_spi(host)) {
680
-#ifdef CONFIG_SDIO_KEEPALIVE
681
-		if (!(host->chip_alive)) {
682
-			err = mmc_send_relative_addr(host, &card->rca);
683
-			if (err)
684
-				goto remove;
685
-		} else {
686
-			card->rca = 1;
687
-		}
688
-#else
738
+	if (!mmc_host_is_spi(host)) {
689739 		err = mmc_send_relative_addr(host, &card->rca);
690740 		if (err)
691741 			goto remove;
692
-#endif
693742 
694743 		/*
695744 		 * Update oldcard with the new RCA received from the SDIO
....@@ -706,7 +755,7 @@
706755 	if (!oldcard && card->type == MMC_TYPE_SD_COMBO) {
707756 		err = mmc_sd_get_csd(host, card);
708757 		if (err)
709
-			return err;
758
+			goto remove;
710759 
711760 		mmc_decode_cid(card);
712761 	}
....@@ -714,7 +763,7 @@
714763 	/*
715764 	 * Select card, as all following commands rely on that.
716765 	 */
717
-	if (!powered_resume && !mmc_host_is_spi(host)) {
766
+	if (!mmc_host_is_spi(host)) {
718767 		err = mmc_select_card(card);
719768 		if (err)
720769 			goto remove;
....@@ -733,7 +782,12 @@
733782 			mmc_set_timing(card->host, MMC_TIMING_SD_HS);
734783 		}
735784 
736
-		goto finish;
785
+		if (oldcard)
786
+			mmc_remove_card(card);
787
+		else
788
+			host->card = card;
789
+
790
+		return 0;
737791 	}
738792 
739793 	/*
....@@ -742,7 +796,7 @@
742796 	 */
743797 	err = sdio_read_cccr(card, ocr);
744798 	if (err) {
745
-		mmc_sdio_resend_if_cond(host, card);
799
+		mmc_sdio_pre_init(host, ocr_card, card);
746800 		if (ocr & R4_18V_PRESENT) {
747801 			/* Retry init sequence, but without R4_18V_PRESENT. */
748802 			retries = 0;
....@@ -759,13 +813,14 @@
759813 		goto remove;
760814 
761815 	if (oldcard) {
762
-		int same = (card->cis.vendor == oldcard->cis.vendor &&
763
-			    card->cis.device == oldcard->cis.device);
764
-		mmc_remove_card(card);
765
-		if (!same)
766
-			return -ENOENT;
767
-
768
-		card = oldcard;
816
+		if (card->cis.vendor == oldcard->cis.vendor &&
817
+		    card->cis.device == oldcard->cis.device) {
818
+			mmc_remove_card(card);
819
+			card = oldcard;
820
+		} else {
821
+			err = -ENOENT;
822
+			goto mismatch;
823
+		}
769824 	}
770825 
771826 	mmc_fixup_device(card, sdio_fixup_methods);
....@@ -826,33 +881,27 @@
826881 		err = -EINVAL;
827882 		goto remove;
828883 	}
829
-finish:
830
-	if (!oldcard)
831
-		host->card = card;
884
+
885
+	host->card = card;
832886 	return 0;
833887 
888
+mismatch:
889
+	pr_debug("%s: Perhaps the card was replaced\n", mmc_hostname(host));
834890 remove:
835
-	if (!oldcard)
891
+	if (oldcard != card)
836892 		mmc_remove_card(card);
837
-
838
-err:
839893 	return err;
840894 }
841895 
842
-static int mmc_sdio_reinit_card(struct mmc_host *host, bool powered_resume)
896
+static int mmc_sdio_reinit_card(struct mmc_host *host)
843897 {
844898 	int ret;
845899 
846
-	sdio_reset(host);
847
-	mmc_go_idle(host);
848
-	mmc_send_if_cond(host, host->card->ocr);
849
-
850
-	ret = mmc_send_io_op_cond(host, 0, NULL);
900
+	ret = mmc_sdio_pre_init(host, host->card->ocr, NULL);
851901 	if (ret)
852902 		return ret;
853903 
854
-	return mmc_sdio_init_card(host, host->card->ocr, host->card,
855
-				  powered_resume);
904
+	return mmc_sdio_init_card(host, host->card->ocr, host->card);
856905 }
857906 
858907 /*
....@@ -938,21 +987,37 @@
938987  */
939988 static int mmc_sdio_pre_suspend(struct mmc_host *host)
940989 {
941
-	int i, err = 0;
990
+	int i;
942991 
943992 	for (i = 0; i < host->card->sdio_funcs; i++) {
944993 		struct sdio_func *func = host->card->sdio_func[i];
945994 		if (func && sdio_func_present(func) && func->dev.driver) {
946995 			const struct dev_pm_ops *pmops = func->dev.driver->pm;
947
-			if (!pmops || !pmops->suspend || !pmops->resume) {
996
+			if (!pmops || !pmops->suspend || !pmops->resume)
948997 				/* force removal of entire card in that case */
949
-				err = -ENOSYS;
950
-				break;
951
-			}
998
+				goto remove;
952999 		}
9531000 	}
9541001 
955
-	return err;
1002
+	return 0;
1003
+
1004
+remove:
1005
+	if (!mmc_card_is_removable(host)) {
1006
+		dev_warn(mmc_dev(host),
1007
+			 "missing suspend/resume ops for non-removable SDIO card\n");
1008
+		/* Don't remove a non-removable card - we can't re-detect it. */
1009
+		return 0;
1010
+	}
1011
+
1012
+	/* Remove the SDIO card and let it be re-detected later on. */
1013
+	mmc_sdio_remove(host);
1014
+	mmc_claim_host(host);
1015
+	mmc_detach_bus(host);
1016
+	mmc_power_off(host);
1017
+	mmc_release_host(host);
1018
+	host->pm_flags = 0;
1019
+
1020
+	return 0;
9561021 }
9571022 
9581023 /*
....@@ -960,6 +1025,8 @@
9601025  */
9611026 static int mmc_sdio_suspend(struct mmc_host *host)
9621027 {
1028
+	WARN_ON(host->sdio_irqs && !mmc_card_keep_power(host));
1029
+
9631030 	/* Prevent processing of SDIO IRQs in suspended state. */
9641031 	mmc_card_set_suspended(host->card);
9651032 	cancel_delayed_work_sync(&host->sdio_irq_work);
....@@ -967,7 +1034,7 @@
9671034 	mmc_claim_host(host);
9681035 
9691036 	if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host))
970
-		sdio_disable_wide(host->card);
1037
+		sdio_disable_4bit_bus(host->card);
9711038 
9721039 	if (!mmc_card_keep_power(host)) {
9731040 		mmc_power_off(host);
....@@ -988,7 +1055,11 @@
9881055 	/* Basic card reinitialization. */
9891056 	mmc_claim_host(host);
9901057 
991
-	/* Restore power if needed */
1058
+	/*
1059
+	 * Restore power and reinitialize the card when needed. Note that a
1060
+	 * removable card is checked from a detect work later on in the resume
1061
+	 * process.
1062
+	 */
9921063 	if (!mmc_card_keep_power(host)) {
9931064 		mmc_power_up(host, host->card->ocr);
9941065 		/*
....@@ -1002,12 +1073,8 @@
10021073 			pm_runtime_set_active(&host->card->dev);
10031074 			pm_runtime_enable(&host->card->dev);
10041075 		}
1005
-	}
1006
-
1007
-	/* No need to reinitialize powered-resumed nonremovable cards */
1008
-	if (mmc_card_is_removable(host) || !mmc_card_keep_power(host)) {
1009
-		err = mmc_sdio_reinit_card(host, mmc_card_keep_power(host));
1010
-	} else if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host)) {
1076
+		err = mmc_sdio_reinit_card(host);
1077
+	} else if (mmc_card_wake_sdio_irq(host)) {
10111078 		/* We may have switched to 1-bit mode during suspend */
10121079 		err = sdio_enable_4bit_bus(host->card);
10131080 	}
....@@ -1022,7 +1089,7 @@
10221089 		if (!(host->caps2 & MMC_CAP2_SDIO_IRQ_NOTHREAD))
10231090 			wake_up_process(host->sdio_irq_thread);
10241091 		else if (host->caps & MMC_CAP_SDIO_IRQ)
1025
-			host->ops->enable_sdio_irq(host, 1);
1092
+			queue_delayed_work(system_wq, &host->sdio_irq_work, 0);
10261093 	}
10271094 
10281095 out:
....@@ -1030,38 +1097,6 @@
10301097 
10311098 	host->pm_flags &= ~MMC_PM_KEEP_POWER;
10321099 	return err;
1033
-}
1034
-
1035
-static int mmc_sdio_power_restore(struct mmc_host *host)
1036
-{
1037
-	int ret;
1038
-
1039
-	/*
1040
-	 * Reset the card by performing the same steps that are taken by
1041
-	 * mmc_rescan_try_freq() and mmc_attach_sdio() during a "normal" probe.
1042
-	 *
1043
-	 * sdio_reset() is technically not needed. Having just powered up the
1044
-	 * hardware, it should already be in reset state. However, some
1045
-	 * platforms (such as SD8686 on OLPC) do not instantly cut power,
1046
-	 * meaning that a reset is required when restoring power soon after
1047
-	 * powering off. It is harmless in other cases.
1048
-	 *
1049
-	 * The CMD5 reset (mmc_send_io_op_cond()), according to the SDIO spec,
1050
-	 * is not necessary for non-removable cards. However, it is required
1051
-	 * for OLPC SD8686 (which expects a [CMD5,5,3,7] init sequence), and
1052
-	 * harmless in other situations.
1053
-	 *
1054
-	 */
1055
-
1056
-	mmc_claim_host(host);
1057
-
1058
-	ret = mmc_sdio_reinit_card(host, mmc_card_keep_power(host));
1059
-	if (!ret && host->sdio_irqs)
1060
-		mmc_signal_sdio_irq(host);
1061
-
1062
-	mmc_release_host(host);
1063
-
1064
-	return ret;
10651100 }
10661101 
10671102 static int mmc_sdio_runtime_suspend(struct mmc_host *host)
....@@ -1081,16 +1116,42 @@
10811116 	/* Restore power and re-initialize. */
10821117 	mmc_claim_host(host);
10831118 	mmc_power_up(host, host->card->ocr);
1084
-	ret = mmc_sdio_power_restore(host);
1119
+	ret = mmc_sdio_reinit_card(host);
10851120 	mmc_release_host(host);
10861121 
10871122 	return ret;
10881123 }
10891124 
1125
+/*
1126
+ * SDIO HW reset
1127
+ *
1128
+ * Returns 0 if the HW reset was executed synchronously, returns 1 if the HW
1129
+ * reset was asynchronously scheduled, else a negative error code.
1130
+ */
10901131 static int mmc_sdio_hw_reset(struct mmc_host *host)
10911132 {
1092
-	mmc_power_cycle(host, host->card->ocr);
1093
-	return mmc_sdio_power_restore(host);
1133
+	struct mmc_card *card = host->card;
1134
+
1135
+	/*
1136
+	 * In case the card is shared among multiple func drivers, reset the
1137
+	 * card through a rescan work. In this way it will be removed and
1138
+	 * re-detected, thus all func drivers becomes informed about it.
1139
+	 */
1140
+	if (atomic_read(&card->sdio_funcs_probed) > 1) {
1141
+		if (mmc_card_removed(card))
1142
+			return 1;
1143
+		host->rescan_entered = 0;
1144
+		mmc_card_set_removed(card);
1145
+		_mmc_detect_change(host, 0, false);
1146
+		return 1;
1147
+	}
1148
+
1149
+	/*
1150
+	 * A single func driver has been probed, then let's skip the heavy
1151
+	 * hotplug dance above and execute the reset immediately.
1152
+	 */
1153
+	mmc_power_cycle(host, card->ocr);
1154
+	return mmc_sdio_reinit_card(host);
10941155 }
10951156 
10961157 static int mmc_sdio_sw_reset(struct mmc_host *host)
....@@ -1102,7 +1163,7 @@
11021163 	mmc_set_initial_state(host);
11031164 	mmc_set_initial_signal_voltage(host);
11041165 
1105
-	return mmc_sdio_reinit_card(host, 0);
1166
+	return mmc_sdio_reinit_card(host);
11061167 }
11071168 
11081169 static const struct mmc_bus_ops mmc_sdio_ops = {
....@@ -1130,21 +1191,9 @@
11301191 
11311192 	WARN_ON(!host->claimed);
11321193 
1133
-#ifdef CONFIG_SDIO_KEEPALIVE
1134
-	if (!(host->chip_alive)) {
1135
-		err = mmc_send_io_op_cond(host, 0, &ocr);
1136
-		if (err) {
1137
-			pr_err("%s mmc_send_io_op_cond err: %d\n", mmc_hostname(host), err);
1138
-			return err;
1139
-		}
1140
-	} else {
1141
-		ocr = 0x20ffff00;
1142
-	}
1143
-#else
11441194 	err = mmc_send_io_op_cond(host, 0, &ocr);
11451195 	if (err)
11461196 		return err;
1147
-#endif
11481197 
11491198 	mmc_attach_bus(host, &mmc_sdio_ops);
11501199 	if (host->ocr_avail_sdio)
....@@ -1164,7 +1213,7 @@
11641213 	/*
11651214 	 * Detect and init the card.
11661215 	 */
1167
-	err = mmc_sdio_init_card(host, rocr, NULL, 0);
1216
+	err = mmc_sdio_init_card(host, rocr, NULL);
11681217 	if (err)
11691218 		goto err;
11701219 
....@@ -1215,11 +1264,6 @@
12151264 			pm_runtime_enable(&card->sdio_func[i]->dev);
12161265 	}
12171266 
1218
-#ifdef CONFIG_SDIO_KEEPALIVE
1219
-	if (host->card->sdio_func[1])
1220
-		host->card->sdio_func[1]->card_alive = host->chip_alive;
1221
-#endif
1222
-
12231267 	/*
12241268 	 * First add the card to the driver model...
12251269 	 */
....@@ -1264,48 +1308,3 @@
12641308 	return err;
12651309 }
12661310 
1267
-int sdio_reset_comm(struct mmc_card *card)
1268
-{
1269
-	struct mmc_host *host = card->host;
1270
-	u32 ocr;
1271
-	u32 rocr;
1272
-	int err;
1273
-
1274
-#ifdef CONFIG_SDIO_KEEPALIVE
1275
-	if (host->chip_alive)
1276
-		host->chip_alive = 0;
1277
-#endif
1278
-
1279
-	printk("%s():\n", __func__);
1280
-	mmc_claim_host(host);
1281
-
1282
-	mmc_retune_disable(host);
1283
-
1284
-	mmc_power_cycle(host, host->card->ocr);
1285
-	mmc_go_idle(host);
1286
-
1287
-	mmc_set_clock(host, host->f_min);
1288
-
1289
-	err = mmc_send_io_op_cond(host, 0, &ocr);
1290
-	if (err)
1291
-		goto err;
1292
-
1293
-	rocr = mmc_select_voltage(host, ocr);
1294
-	if (!rocr) {
1295
-		err = -EINVAL;
1296
-		goto err;
1297
-	}
1298
-
1299
-	err = mmc_sdio_init_card(host, rocr, card, 0);
1300
-	if (err)
1301
-		goto err;
1302
-
1303
-	mmc_release_host(host);
1304
-	return 0;
1305
-err:
1306
-	printk("%s: Error resetting SDIO communications (%d)\n",
1307
-	       mmc_hostname(host), err);
1308
-	mmc_release_host(host);
1309
-	return err;
1310
-}
1311
-EXPORT_SYMBOL(sdio_reset_comm);