1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* linux/drivers/mmc/host/sdhci-pci.c - SDHCI on PCI bus interface
4 * Copyright (C) 2005-2008 Pierre Ossman, All Rights Reserved.
6 * Thanks to the following companies for their support:
8 * - JMicron (hardware and technical support)
11 #include <linux/bitfield.h>
12 #include <linux/string.h>
13 #include <linux/delay.h>
14 #include <linux/highmem.h>
15 #include <linux/module.h>
16 #include <linux/pci.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/slab.h>
19 #include <linux/device.h>
20 #include <linux/mmc/host.h>
21 #include <linux/mmc/mmc.h>
22 #include <linux/scatterlist.h>
24 #include <linux/iopoll.h>
25 #include <linux/gpio.h>
26 #include <linux/pm_runtime.h>
27 #include <linux/mmc/slot-gpio.h>
28 #include <linux/mmc/sdhci-pci-data.h>
29 #include <linux/acpi.h>
30 #include <linux/dmi.h>
33 #include <asm/iosf_mbi.h>
39 #include "sdhci-pci.h"
41 static void sdhci_pci_hw_reset(struct sdhci_host *host);
43 #ifdef CONFIG_PM_SLEEP
44 static int sdhci_pci_init_wakeup(struct sdhci_pci_chip *chip)
46 mmc_pm_flag_t pm_flags = 0;
47 bool cap_cd_wake = false;
50 for (i = 0; i < chip->num_slots; i++) {
51 struct sdhci_pci_slot *slot = chip->slots[i];
54 pm_flags |= slot->host->mmc->pm_flags;
55 if (slot->host->mmc->caps & MMC_CAP_CD_WAKE)
60 if ((pm_flags & MMC_PM_KEEP_POWER) && (pm_flags & MMC_PM_WAKE_SDIO_IRQ))
61 return device_wakeup_enable(&chip->pdev->dev);
62 else if (!cap_cd_wake)
63 return device_wakeup_disable(&chip->pdev->dev);
68 static int sdhci_pci_suspend_host(struct sdhci_pci_chip *chip)
72 sdhci_pci_init_wakeup(chip);
74 for (i = 0; i < chip->num_slots; i++) {
75 struct sdhci_pci_slot *slot = chip->slots[i];
76 struct sdhci_host *host;
83 if (chip->pm_retune && host->tuning_mode != SDHCI_TUNING_MODE_3)
84 mmc_retune_needed(host->mmc);
86 ret = sdhci_suspend_host(host);
90 if (device_may_wakeup(&chip->pdev->dev))
91 mmc_gpio_set_cd_wake(host->mmc, true);
98 sdhci_resume_host(chip->slots[i]->host);
102 int sdhci_pci_resume_host(struct sdhci_pci_chip *chip)
104 struct sdhci_pci_slot *slot;
107 for (i = 0; i < chip->num_slots; i++) {
108 slot = chip->slots[i];
112 ret = sdhci_resume_host(slot->host);
116 mmc_gpio_set_cd_wake(slot->host->mmc, false);
122 static int sdhci_cqhci_suspend(struct sdhci_pci_chip *chip)
126 ret = cqhci_suspend(chip->slots[0]->host->mmc);
130 return sdhci_pci_suspend_host(chip);
133 static int sdhci_cqhci_resume(struct sdhci_pci_chip *chip)
137 ret = sdhci_pci_resume_host(chip);
141 return cqhci_resume(chip->slots[0]->host->mmc);
146 static int sdhci_pci_runtime_suspend_host(struct sdhci_pci_chip *chip)
148 struct sdhci_pci_slot *slot;
149 struct sdhci_host *host;
152 for (i = 0; i < chip->num_slots; i++) {
153 slot = chip->slots[i];
159 ret = sdhci_runtime_suspend_host(host);
161 goto err_pci_runtime_suspend;
163 if (chip->rpm_retune &&
164 host->tuning_mode != SDHCI_TUNING_MODE_3)
165 mmc_retune_needed(host->mmc);
170 err_pci_runtime_suspend:
172 sdhci_runtime_resume_host(chip->slots[i]->host, 0);
176 static int sdhci_pci_runtime_resume_host(struct sdhci_pci_chip *chip)
178 struct sdhci_pci_slot *slot;
181 for (i = 0; i < chip->num_slots; i++) {
182 slot = chip->slots[i];
186 ret = sdhci_runtime_resume_host(slot->host, 0);
194 static int sdhci_cqhci_runtime_suspend(struct sdhci_pci_chip *chip)
198 ret = cqhci_suspend(chip->slots[0]->host->mmc);
202 return sdhci_pci_runtime_suspend_host(chip);
205 static int sdhci_cqhci_runtime_resume(struct sdhci_pci_chip *chip)
209 ret = sdhci_pci_runtime_resume_host(chip);
213 return cqhci_resume(chip->slots[0]->host->mmc);
217 static u32 sdhci_cqhci_irq(struct sdhci_host *host, u32 intmask)
222 if (!sdhci_cqe_irq(host, intmask, &cmd_error, &data_error))
225 cqhci_irq(host->mmc, intmask, cmd_error, data_error);
230 static void sdhci_pci_dumpregs(struct mmc_host *mmc)
232 sdhci_dumpregs(mmc_priv(mmc));
235 /*****************************************************************************\
237 * Hardware specific quirk handling *
239 \*****************************************************************************/
241 static int ricoh_probe(struct sdhci_pci_chip *chip)
243 if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG ||
244 chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY)
245 chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;
249 static int ricoh_mmc_probe_slot(struct sdhci_pci_slot *slot)
252 FIELD_PREP(SDHCI_TIMEOUT_CLK_MASK, 0x21) |
253 FIELD_PREP(SDHCI_CLOCK_BASE_MASK, 0x21) |
254 SDHCI_TIMEOUT_CLK_UNIT |
261 #ifdef CONFIG_PM_SLEEP
262 static int ricoh_mmc_resume(struct sdhci_pci_chip *chip)
264 /* Apply a delay to allow controller to settle */
265 /* Otherwise it becomes confused if card state changed
268 return sdhci_pci_resume_host(chip);
272 static const struct sdhci_pci_fixes sdhci_ricoh = {
273 .probe = ricoh_probe,
274 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
275 SDHCI_QUIRK_FORCE_DMA |
276 SDHCI_QUIRK_CLOCK_BEFORE_RESET,
279 static const struct sdhci_pci_fixes sdhci_ricoh_mmc = {
280 .probe_slot = ricoh_mmc_probe_slot,
281 #ifdef CONFIG_PM_SLEEP
282 .resume = ricoh_mmc_resume,
284 .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
285 SDHCI_QUIRK_CLOCK_BEFORE_RESET |
286 SDHCI_QUIRK_NO_CARD_NO_RESET |
287 SDHCI_QUIRK_MISSING_CAPS
290 static const struct sdhci_pci_fixes sdhci_ene_712 = {
291 .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
292 SDHCI_QUIRK_BROKEN_DMA,
295 static const struct sdhci_pci_fixes sdhci_ene_714 = {
296 .quirks = SDHCI_QUIRK_SINGLE_POWER_WRITE |
297 SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS |
298 SDHCI_QUIRK_BROKEN_DMA,
301 static const struct sdhci_pci_fixes sdhci_cafe = {
302 .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
303 SDHCI_QUIRK_NO_BUSY_IRQ |
304 SDHCI_QUIRK_BROKEN_CARD_DETECTION |
305 SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
308 static const struct sdhci_pci_fixes sdhci_intel_qrk = {
309 .quirks = SDHCI_QUIRK_NO_HISPD_BIT,
312 static int mrst_hc_probe_slot(struct sdhci_pci_slot *slot)
314 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
319 * ADMA operation is disabled for Moorestown platform due to
322 static int mrst_hc_probe(struct sdhci_pci_chip *chip)
325 * slots number is fixed here for MRST as SDIO3/5 are never used and
326 * have hardware bugs.
332 static int pch_hc_probe_slot(struct sdhci_pci_slot *slot)
334 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA;
340 static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
342 struct sdhci_pci_slot *slot = dev_id;
343 struct sdhci_host *host = slot->host;
345 mmc_detect_change(host->mmc, msecs_to_jiffies(200));
349 static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
351 int err, irq, gpio = slot->cd_gpio;
353 slot->cd_gpio = -EINVAL;
354 slot->cd_irq = -EINVAL;
356 if (!gpio_is_valid(gpio))
359 err = devm_gpio_request(&slot->chip->pdev->dev, gpio, "sd_cd");
363 err = gpio_direction_input(gpio);
367 irq = gpio_to_irq(gpio);
371 err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING |
372 IRQF_TRIGGER_FALLING, "sd_cd", slot);
376 slot->cd_gpio = gpio;
382 devm_gpio_free(&slot->chip->pdev->dev, gpio);
384 dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
387 static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
389 if (slot->cd_irq >= 0)
390 free_irq(slot->cd_irq, slot);
395 static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
399 static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
405 static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
407 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
408 slot->host->mmc->caps2 |= MMC_CAP2_BOOTPART_NOACC;
412 static int mfd_sdio_probe_slot(struct sdhci_pci_slot *slot)
414 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE;
418 static const struct sdhci_pci_fixes sdhci_intel_mrst_hc0 = {
419 .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
420 .probe_slot = mrst_hc_probe_slot,
423 static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = {
424 .quirks = SDHCI_QUIRK_BROKEN_ADMA | SDHCI_QUIRK_NO_HISPD_BIT,
425 .probe = mrst_hc_probe,
428 static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = {
429 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
430 .allow_runtime_pm = true,
431 .own_cd_for_runtime_pm = true,
434 static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = {
435 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
436 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
437 .allow_runtime_pm = true,
438 .probe_slot = mfd_sdio_probe_slot,
441 static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = {
442 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
443 .allow_runtime_pm = true,
444 .probe_slot = mfd_emmc_probe_slot,
447 static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
448 .quirks = SDHCI_QUIRK_BROKEN_ADMA,
449 .probe_slot = pch_hc_probe_slot,
454 #define BYT_IOSF_SCCEP 0x63
455 #define BYT_IOSF_OCP_NETCTRL0 0x1078
456 #define BYT_IOSF_OCP_TIMEOUT_BASE GENMASK(10, 8)
458 static void byt_ocp_setting(struct pci_dev *pdev)
462 if (pdev->device != PCI_DEVICE_ID_INTEL_BYT_EMMC &&
463 pdev->device != PCI_DEVICE_ID_INTEL_BYT_SDIO &&
464 pdev->device != PCI_DEVICE_ID_INTEL_BYT_SD &&
465 pdev->device != PCI_DEVICE_ID_INTEL_BYT_EMMC2)
468 if (iosf_mbi_read(BYT_IOSF_SCCEP, MBI_CR_READ, BYT_IOSF_OCP_NETCTRL0,
470 dev_err(&pdev->dev, "%s read error\n", __func__);
474 if (!(val & BYT_IOSF_OCP_TIMEOUT_BASE))
477 val &= ~BYT_IOSF_OCP_TIMEOUT_BASE;
479 if (iosf_mbi_write(BYT_IOSF_SCCEP, MBI_CR_WRITE, BYT_IOSF_OCP_NETCTRL0,
481 dev_err(&pdev->dev, "%s write error\n", __func__);
485 dev_dbg(&pdev->dev, "%s completed\n", __func__);
490 static inline void byt_ocp_setting(struct pci_dev *pdev)
498 INTEL_DSM_V18_SWITCH = 3,
499 INTEL_DSM_V33_SWITCH = 4,
500 INTEL_DSM_DRV_STRENGTH = 9,
501 INTEL_DSM_D3_RETUNE = 10,
513 static const guid_t intel_dsm_guid =
514 GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F,
515 0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61);
517 static int __intel_dsm(struct intel_host *intel_host, struct device *dev,
518 unsigned int fn, u32 *result)
520 union acpi_object *obj;
524 obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL);
528 if (obj->type != ACPI_TYPE_BUFFER || obj->buffer.length < 1) {
533 len = min_t(size_t, obj->buffer.length, 4);
536 memcpy(result, obj->buffer.pointer, len);
543 static int intel_dsm(struct intel_host *intel_host, struct device *dev,
544 unsigned int fn, u32 *result)
546 if (fn > 31 || !(intel_host->dsm_fns & (1 << fn)))
549 return __intel_dsm(intel_host, dev, fn, result);
552 static void intel_dsm_init(struct intel_host *intel_host, struct device *dev,
553 struct mmc_host *mmc)
558 intel_host->d3_retune = true;
560 err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
562 pr_debug("%s: DSM not supported, error %d\n",
563 mmc_hostname(mmc), err);
567 pr_debug("%s: DSM function mask %#x\n",
568 mmc_hostname(mmc), intel_host->dsm_fns);
570 err = intel_dsm(intel_host, dev, INTEL_DSM_DRV_STRENGTH, &val);
571 intel_host->drv_strength = err ? 0 : val;
573 err = intel_dsm(intel_host, dev, INTEL_DSM_D3_RETUNE, &val);
574 intel_host->d3_retune = err ? true : !!val;
577 static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
581 reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
583 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
584 /* For eMMC, minimum is 1us but give it 9us for good measure */
587 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
588 /* For eMMC, minimum is 200us but give it 300us for good measure */
589 usleep_range(300, 1000);
592 static int intel_select_drive_strength(struct mmc_card *card,
593 unsigned int max_dtr, int host_drv,
594 int card_drv, int *drv_type)
596 struct sdhci_host *host = mmc_priv(card->host);
597 struct sdhci_pci_slot *slot = sdhci_priv(host);
598 struct intel_host *intel_host = sdhci_pci_priv(slot);
600 if (!(mmc_driver_type_mask(intel_host->drv_strength) & card_drv))
603 return intel_host->drv_strength;
606 static int bxt_get_cd(struct mmc_host *mmc)
608 int gpio_cd = mmc_gpio_get_cd(mmc);
609 struct sdhci_host *host = mmc_priv(mmc);
616 spin_lock_irqsave(&host->lock, flags);
618 if (host->flags & SDHCI_DEVICE_DEAD)
621 ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
623 spin_unlock_irqrestore(&host->lock, flags);
628 #define SDHCI_INTEL_PWR_TIMEOUT_CNT 20
629 #define SDHCI_INTEL_PWR_TIMEOUT_UDELAY 100
631 static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode,
637 sdhci_set_power(host, mode, vdd);
639 if (mode == MMC_POWER_OFF)
643 * Bus power might not enable after D3 -> D0 transition due to the
644 * present state not yet having propagated. Retry for up to 2ms.
646 for (cntr = 0; cntr < SDHCI_INTEL_PWR_TIMEOUT_CNT; cntr++) {
647 reg = sdhci_readb(host, SDHCI_POWER_CONTROL);
648 if (reg & SDHCI_POWER_ON)
650 udelay(SDHCI_INTEL_PWR_TIMEOUT_UDELAY);
651 reg |= SDHCI_POWER_ON;
652 sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
656 #define INTEL_HS400_ES_REG 0x78
657 #define INTEL_HS400_ES_BIT BIT(0)
659 static void intel_hs400_enhanced_strobe(struct mmc_host *mmc,
662 struct sdhci_host *host = mmc_priv(mmc);
665 val = sdhci_readl(host, INTEL_HS400_ES_REG);
666 if (ios->enhanced_strobe)
667 val |= INTEL_HS400_ES_BIT;
669 val &= ~INTEL_HS400_ES_BIT;
670 sdhci_writel(host, val, INTEL_HS400_ES_REG);
673 static int intel_start_signal_voltage_switch(struct mmc_host *mmc,
676 struct device *dev = mmc_dev(mmc);
677 struct sdhci_host *host = mmc_priv(mmc);
678 struct sdhci_pci_slot *slot = sdhci_priv(host);
679 struct intel_host *intel_host = sdhci_pci_priv(slot);
684 err = sdhci_start_signal_voltage_switch(mmc, ios);
688 switch (ios->signal_voltage) {
689 case MMC_SIGNAL_VOLTAGE_330:
690 fn = INTEL_DSM_V33_SWITCH;
692 case MMC_SIGNAL_VOLTAGE_180:
693 fn = INTEL_DSM_V18_SWITCH;
699 err = intel_dsm(intel_host, dev, fn, &result);
700 pr_debug("%s: %s DSM fn %u error %d result %u\n",
701 mmc_hostname(mmc), __func__, fn, err, result);
706 static const struct sdhci_ops sdhci_intel_byt_ops = {
707 .set_clock = sdhci_set_clock,
708 .set_power = sdhci_intel_set_power,
709 .enable_dma = sdhci_pci_enable_dma,
710 .set_bus_width = sdhci_set_bus_width,
711 .reset = sdhci_reset,
712 .set_uhs_signaling = sdhci_set_uhs_signaling,
713 .hw_reset = sdhci_pci_hw_reset,
716 static const struct sdhci_ops sdhci_intel_glk_ops = {
717 .set_clock = sdhci_set_clock,
718 .set_power = sdhci_intel_set_power,
719 .enable_dma = sdhci_pci_enable_dma,
720 .set_bus_width = sdhci_set_bus_width,
721 .reset = sdhci_reset,
722 .set_uhs_signaling = sdhci_set_uhs_signaling,
723 .hw_reset = sdhci_pci_hw_reset,
724 .irq = sdhci_cqhci_irq,
727 static void byt_read_dsm(struct sdhci_pci_slot *slot)
729 struct intel_host *intel_host = sdhci_pci_priv(slot);
730 struct device *dev = &slot->chip->pdev->dev;
731 struct mmc_host *mmc = slot->host->mmc;
733 intel_dsm_init(intel_host, dev, mmc);
734 slot->chip->rpm_retune = intel_host->d3_retune;
737 static int intel_execute_tuning(struct mmc_host *mmc, u32 opcode)
739 int err = sdhci_execute_tuning(mmc, opcode);
740 struct sdhci_host *host = mmc_priv(mmc);
746 * Tuning can leave the IP in an active state (Buffer Read Enable bit
747 * set) which prevents the entry to low power states (i.e. S0i3). Data
748 * reset will clear it.
750 sdhci_reset(host, SDHCI_RESET_DATA);
755 static void byt_probe_slot(struct sdhci_pci_slot *slot)
757 struct mmc_host_ops *ops = &slot->host->mmc_host_ops;
758 struct device *dev = &slot->chip->pdev->dev;
759 struct mmc_host *mmc = slot->host->mmc;
763 byt_ocp_setting(slot->chip->pdev);
765 ops->execute_tuning = intel_execute_tuning;
766 ops->start_signal_voltage_switch = intel_start_signal_voltage_switch;
768 device_property_read_u32(dev, "max-frequency", &mmc->f_max);
771 static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
773 byt_probe_slot(slot);
774 slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
775 MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR |
776 MMC_CAP_CMD_DURING_TFR |
777 MMC_CAP_WAIT_WHILE_BUSY;
778 slot->hw_reset = sdhci_pci_int_hw_reset;
779 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
780 slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
781 slot->host->mmc_host_ops.select_drive_strength =
782 intel_select_drive_strength;
786 static bool glk_broken_cqhci(struct sdhci_pci_slot *slot)
788 return slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_EMMC &&
789 dmi_match(DMI_BIOS_VENDOR, "LENOVO");
792 static int glk_emmc_probe_slot(struct sdhci_pci_slot *slot)
794 int ret = byt_emmc_probe_slot(slot);
796 if (!glk_broken_cqhci(slot))
797 slot->host->mmc->caps2 |= MMC_CAP2_CQE;
799 if (slot->chip->pdev->device != PCI_DEVICE_ID_INTEL_GLK_EMMC) {
800 slot->host->mmc->caps2 |= MMC_CAP2_HS400_ES,
801 slot->host->mmc_host_ops.hs400_enhanced_strobe =
802 intel_hs400_enhanced_strobe;
803 slot->host->mmc->caps2 |= MMC_CAP2_CQE_DCMD;
809 static const struct cqhci_host_ops glk_cqhci_ops = {
810 .enable = sdhci_cqe_enable,
811 .disable = sdhci_cqe_disable,
812 .dumpregs = sdhci_pci_dumpregs,
815 static int glk_emmc_add_host(struct sdhci_pci_slot *slot)
817 struct device *dev = &slot->chip->pdev->dev;
818 struct sdhci_host *host = slot->host;
819 struct cqhci_host *cq_host;
823 ret = sdhci_setup_host(host);
827 cq_host = devm_kzalloc(dev, sizeof(*cq_host), GFP_KERNEL);
833 cq_host->mmio = host->ioaddr + 0x200;
834 cq_host->quirks |= CQHCI_QUIRK_SHORT_TXFR_DESC_SZ;
835 cq_host->ops = &glk_cqhci_ops;
837 dma64 = host->flags & SDHCI_USE_64_BIT_DMA;
839 cq_host->caps |= CQHCI_TASK_DESC_SZ_128;
841 ret = cqhci_init(cq_host, host->mmc, dma64);
845 ret = __sdhci_add_host(host);
852 sdhci_cleanup_host(host);
857 #define GLK_RX_CTRL1 0x834
858 #define GLK_TUN_VAL 0x840
859 #define GLK_PATH_PLL GENMASK(13, 8)
860 #define GLK_DLY GENMASK(6, 0)
861 /* Workaround firmware failing to restore the tuning value */
862 static void glk_rpm_retune_wa(struct sdhci_pci_chip *chip, bool susp)
864 struct sdhci_pci_slot *slot = chip->slots[0];
865 struct intel_host *intel_host = sdhci_pci_priv(slot);
866 struct sdhci_host *host = slot->host;
871 if (intel_host->rpm_retune_ok || !mmc_can_retune(host->mmc))
874 glk_rx_ctrl1 = sdhci_readl(host, GLK_RX_CTRL1);
875 glk_tun_val = sdhci_readl(host, GLK_TUN_VAL);
878 intel_host->glk_rx_ctrl1 = glk_rx_ctrl1;
879 intel_host->glk_tun_val = glk_tun_val;
883 if (!intel_host->glk_tun_val)
886 if (glk_rx_ctrl1 != intel_host->glk_rx_ctrl1) {
887 intel_host->rpm_retune_ok = true;
891 dly = FIELD_PREP(GLK_DLY, FIELD_GET(GLK_PATH_PLL, glk_rx_ctrl1) +
892 (intel_host->glk_tun_val << 1));
893 if (dly == FIELD_GET(GLK_DLY, glk_rx_ctrl1))
896 glk_rx_ctrl1 = (glk_rx_ctrl1 & ~GLK_DLY) | dly;
897 sdhci_writel(host, glk_rx_ctrl1, GLK_RX_CTRL1);
899 intel_host->rpm_retune_ok = true;
900 chip->rpm_retune = true;
901 mmc_retune_needed(host->mmc);
902 pr_info("%s: Requiring re-tune after rpm resume", mmc_hostname(host->mmc));
905 static void glk_rpm_retune_chk(struct sdhci_pci_chip *chip, bool susp)
907 if (chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_EMMC &&
909 glk_rpm_retune_wa(chip, susp);
912 static int glk_runtime_suspend(struct sdhci_pci_chip *chip)
914 glk_rpm_retune_chk(chip, true);
916 return sdhci_cqhci_runtime_suspend(chip);
919 static int glk_runtime_resume(struct sdhci_pci_chip *chip)
921 glk_rpm_retune_chk(chip, false);
923 return sdhci_cqhci_runtime_resume(chip);
928 static int ni_set_max_freq(struct sdhci_pci_slot *slot)
931 unsigned long long max_freq;
933 status = acpi_evaluate_integer(ACPI_HANDLE(&slot->chip->pdev->dev),
934 "MXFQ", NULL, &max_freq);
935 if (ACPI_FAILURE(status)) {
936 dev_err(&slot->chip->pdev->dev,
937 "MXFQ not found in acpi table\n");
941 slot->host->mmc->f_max = max_freq * 1000000;
946 static inline int ni_set_max_freq(struct sdhci_pci_slot *slot)
952 static int ni_byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
956 byt_probe_slot(slot);
958 err = ni_set_max_freq(slot);
962 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
963 MMC_CAP_WAIT_WHILE_BUSY;
967 static int byt_sdio_probe_slot(struct sdhci_pci_slot *slot)
969 byt_probe_slot(slot);
970 slot->host->mmc->caps |= MMC_CAP_POWER_OFF_CARD | MMC_CAP_NONREMOVABLE |
971 MMC_CAP_WAIT_WHILE_BUSY;
975 static int byt_sd_probe_slot(struct sdhci_pci_slot *slot)
977 byt_probe_slot(slot);
978 slot->host->mmc->caps |= MMC_CAP_WAIT_WHILE_BUSY |
979 MMC_CAP_AGGRESSIVE_PM | MMC_CAP_CD_WAKE;
981 slot->cd_override_level = true;
982 if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXT_SD ||
983 slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BXTM_SD ||
984 slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_APL_SD ||
985 slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_GLK_SD)
986 slot->host->mmc_host_ops.get_cd = bxt_get_cd;
988 if (slot->chip->pdev->subsystem_vendor == PCI_VENDOR_ID_NI &&
989 slot->chip->pdev->subsystem_device == PCI_SUBDEVICE_ID_NI_78E3)
990 slot->host->mmc->caps2 |= MMC_CAP2_AVOID_3_3V;
995 #ifdef CONFIG_PM_SLEEP
997 static int byt_resume(struct sdhci_pci_chip *chip)
999 byt_ocp_setting(chip->pdev);
1001 return sdhci_pci_resume_host(chip);
1008 static int byt_runtime_resume(struct sdhci_pci_chip *chip)
1010 byt_ocp_setting(chip->pdev);
1012 return sdhci_pci_runtime_resume_host(chip);
1017 static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = {
1018 #ifdef CONFIG_PM_SLEEP
1019 .resume = byt_resume,
1022 .runtime_resume = byt_runtime_resume,
1024 .allow_runtime_pm = true,
1025 .probe_slot = byt_emmc_probe_slot,
1026 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
1028 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
1029 SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
1030 SDHCI_QUIRK2_STOP_WITH_TC,
1031 .ops = &sdhci_intel_byt_ops,
1032 .priv_size = sizeof(struct intel_host),
1035 static const struct sdhci_pci_fixes sdhci_intel_glk_emmc = {
1036 .allow_runtime_pm = true,
1037 .probe_slot = glk_emmc_probe_slot,
1038 .add_host = glk_emmc_add_host,
1039 #ifdef CONFIG_PM_SLEEP
1040 .suspend = sdhci_cqhci_suspend,
1041 .resume = sdhci_cqhci_resume,
1044 .runtime_suspend = glk_runtime_suspend,
1045 .runtime_resume = glk_runtime_resume,
1047 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
1049 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
1050 SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 |
1051 SDHCI_QUIRK2_STOP_WITH_TC,
1052 .ops = &sdhci_intel_glk_ops,
1053 .priv_size = sizeof(struct intel_host),
1056 static const struct sdhci_pci_fixes sdhci_ni_byt_sdio = {
1057 #ifdef CONFIG_PM_SLEEP
1058 .resume = byt_resume,
1061 .runtime_resume = byt_runtime_resume,
1063 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
1065 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
1066 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
1067 .allow_runtime_pm = true,
1068 .probe_slot = ni_byt_sdio_probe_slot,
1069 .ops = &sdhci_intel_byt_ops,
1070 .priv_size = sizeof(struct intel_host),
1073 static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {
1074 #ifdef CONFIG_PM_SLEEP
1075 .resume = byt_resume,
1078 .runtime_resume = byt_runtime_resume,
1080 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
1082 .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON |
1083 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
1084 .allow_runtime_pm = true,
1085 .probe_slot = byt_sdio_probe_slot,
1086 .ops = &sdhci_intel_byt_ops,
1087 .priv_size = sizeof(struct intel_host),
1090 static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
1091 #ifdef CONFIG_PM_SLEEP
1092 .resume = byt_resume,
1095 .runtime_resume = byt_runtime_resume,
1097 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
1099 .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
1100 SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
1101 SDHCI_QUIRK2_STOP_WITH_TC,
1102 .allow_runtime_pm = true,
1103 .own_cd_for_runtime_pm = true,
1104 .probe_slot = byt_sd_probe_slot,
1105 .ops = &sdhci_intel_byt_ops,
1106 .priv_size = sizeof(struct intel_host),
1109 /* Define Host controllers for Intel Merrifield platform */
1110 #define INTEL_MRFLD_EMMC_0 0
1111 #define INTEL_MRFLD_EMMC_1 1
1112 #define INTEL_MRFLD_SD 2
1113 #define INTEL_MRFLD_SDIO 3
1116 static void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot)
1118 struct acpi_device *device, *child;
1120 device = ACPI_COMPANION(&slot->chip->pdev->dev);
1124 acpi_device_fix_up_power(device);
1125 list_for_each_entry(child, &device->children, node)
1126 if (child->status.present && child->status.enabled)
1127 acpi_device_fix_up_power(child);
1130 static inline void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) {}
1133 static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
1135 unsigned int func = PCI_FUNC(slot->chip->pdev->devfn);
1138 case INTEL_MRFLD_EMMC_0:
1139 case INTEL_MRFLD_EMMC_1:
1140 slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE |
1141 MMC_CAP_8_BIT_DATA |
1144 case INTEL_MRFLD_SD:
1145 slot->host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
1147 case INTEL_MRFLD_SDIO:
1148 /* Advertise 2.0v for compatibility with the SDIO card's OCR */
1149 slot->host->ocr_mask = MMC_VDD_20_21 | MMC_VDD_165_195;
1150 slot->host->mmc->caps |= MMC_CAP_NONREMOVABLE |
1151 MMC_CAP_POWER_OFF_CARD;
1157 intel_mrfld_mmc_fix_up_power_slot(slot);
1161 static const struct sdhci_pci_fixes sdhci_intel_mrfld_mmc = {
1162 .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
1163 .quirks2 = SDHCI_QUIRK2_BROKEN_HS200 |
1164 SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
1165 .allow_runtime_pm = true,
1166 .probe_slot = intel_mrfld_mmc_probe_slot,
1169 static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
1174 ret = pci_read_config_byte(chip->pdev, 0xAE, &scratch);
1179 * Turn PMOS on [bit 0], set over current detection to 2.4 V
1180 * [bit 1:2] and enable over current debouncing [bit 6].
1187 return pci_write_config_byte(chip->pdev, 0xAE, scratch);
1190 static int jmicron_probe(struct sdhci_pci_chip *chip)
1195 if (chip->pdev->revision == 0) {
1196 chip->quirks |= SDHCI_QUIRK_32BIT_DMA_ADDR |
1197 SDHCI_QUIRK_32BIT_DMA_SIZE |
1198 SDHCI_QUIRK_32BIT_ADMA_SIZE |
1199 SDHCI_QUIRK_RESET_AFTER_REQUEST |
1200 SDHCI_QUIRK_BROKEN_SMALL_PIO;
1204 * JMicron chips can have two interfaces to the same hardware
1205 * in order to work around limitations in Microsoft's driver.
1206 * We need to make sure we only bind to one of them.
1208 * This code assumes two things:
1210 * 1. The PCI code adds subfunctions in order.
1212 * 2. The MMC interface has a lower subfunction number
1213 * than the SD interface.
1215 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_SD)
1216 mmcdev = PCI_DEVICE_ID_JMICRON_JMB38X_MMC;
1217 else if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD)
1218 mmcdev = PCI_DEVICE_ID_JMICRON_JMB388_ESD;
1221 struct pci_dev *sd_dev;
1224 while ((sd_dev = pci_get_device(PCI_VENDOR_ID_JMICRON,
1225 mmcdev, sd_dev)) != NULL) {
1226 if ((PCI_SLOT(chip->pdev->devfn) ==
1227 PCI_SLOT(sd_dev->devfn)) &&
1228 (chip->pdev->bus == sd_dev->bus))
1233 pci_dev_put(sd_dev);
1234 dev_info(&chip->pdev->dev, "Refusing to bind to "
1235 "secondary interface.\n");
1241 * JMicron chips need a bit of a nudge to enable the power
1244 ret = jmicron_pmos(chip, 1);
1246 dev_err(&chip->pdev->dev, "Failure enabling card power\n");
1250 /* quirk for unsable RO-detection on JM388 chips */
1251 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_SD ||
1252 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
1253 chip->quirks |= SDHCI_QUIRK_UNSTABLE_RO_DETECT;
1258 static void jmicron_enable_mmc(struct sdhci_host *host, int on)
1262 scratch = readb(host->ioaddr + 0xC0);
1269 writeb(scratch, host->ioaddr + 0xC0);
1272 static int jmicron_probe_slot(struct sdhci_pci_slot *slot)
1274 if (slot->chip->pdev->revision == 0) {
1277 version = readl(slot->host->ioaddr + SDHCI_HOST_VERSION);
1278 version = (version & SDHCI_VENDOR_VER_MASK) >>
1279 SDHCI_VENDOR_VER_SHIFT;
1282 * Older versions of the chip have lots of nasty glitches
1283 * in the ADMA engine. It's best just to avoid it
1287 slot->host->quirks |= SDHCI_QUIRK_BROKEN_ADMA;
1290 /* JM388 MMC doesn't support 1.8V while SD supports it */
1291 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
1292 slot->host->ocr_avail_sd = MMC_VDD_32_33 | MMC_VDD_33_34 |
1293 MMC_VDD_29_30 | MMC_VDD_30_31 |
1294 MMC_VDD_165_195; /* allow 1.8V */
1295 slot->host->ocr_avail_mmc = MMC_VDD_32_33 | MMC_VDD_33_34 |
1296 MMC_VDD_29_30 | MMC_VDD_30_31; /* no 1.8V for MMC */
1300 * The secondary interface requires a bit set to get the
1303 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
1304 slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
1305 jmicron_enable_mmc(slot->host, 1);
1307 slot->host->mmc->caps |= MMC_CAP_BUS_WIDTH_TEST;
1312 static void jmicron_remove_slot(struct sdhci_pci_slot *slot, int dead)
1317 if (slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
1318 slot->chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD)
1319 jmicron_enable_mmc(slot->host, 0);
1322 #ifdef CONFIG_PM_SLEEP
1323 static int jmicron_suspend(struct sdhci_pci_chip *chip)
1327 ret = sdhci_pci_suspend_host(chip);
1331 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
1332 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
1333 for (i = 0; i < chip->num_slots; i++)
1334 jmicron_enable_mmc(chip->slots[i]->host, 0);
1340 static int jmicron_resume(struct sdhci_pci_chip *chip)
1344 if (chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB38X_MMC ||
1345 chip->pdev->device == PCI_DEVICE_ID_JMICRON_JMB388_ESD) {
1346 for (i = 0; i < chip->num_slots; i++)
1347 jmicron_enable_mmc(chip->slots[i]->host, 1);
1350 ret = jmicron_pmos(chip, 1);
1352 dev_err(&chip->pdev->dev, "Failure enabling card power\n");
1356 return sdhci_pci_resume_host(chip);
1360 static const struct sdhci_pci_fixes sdhci_jmicron = {
1361 .probe = jmicron_probe,
1363 .probe_slot = jmicron_probe_slot,
1364 .remove_slot = jmicron_remove_slot,
1366 #ifdef CONFIG_PM_SLEEP
1367 .suspend = jmicron_suspend,
1368 .resume = jmicron_resume,
1372 /* SysKonnect CardBus2SDIO extra registers */
1373 #define SYSKT_CTRL 0x200
1374 #define SYSKT_RDFIFO_STAT 0x204
1375 #define SYSKT_WRFIFO_STAT 0x208
1376 #define SYSKT_POWER_DATA 0x20c
1377 #define SYSKT_POWER_330 0xef
1378 #define SYSKT_POWER_300 0xf8
1379 #define SYSKT_POWER_184 0xcc
1380 #define SYSKT_POWER_CMD 0x20d
1381 #define SYSKT_POWER_START (1 << 7)
1382 #define SYSKT_POWER_STATUS 0x20e
1383 #define SYSKT_POWER_STATUS_OK (1 << 0)
1384 #define SYSKT_BOARD_REV 0x210
1385 #define SYSKT_CHIP_REV 0x211
1386 #define SYSKT_CONF_DATA 0x212
1387 #define SYSKT_CONF_DATA_1V8 (1 << 2)
1388 #define SYSKT_CONF_DATA_2V5 (1 << 1)
1389 #define SYSKT_CONF_DATA_3V3 (1 << 0)
1391 static int syskt_probe(struct sdhci_pci_chip *chip)
1393 if ((chip->pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
1394 chip->pdev->class &= ~0x0000FF;
1395 chip->pdev->class |= PCI_SDHCI_IFDMA;
1400 static int syskt_probe_slot(struct sdhci_pci_slot *slot)
1404 u8 board_rev = readb(slot->host->ioaddr + SYSKT_BOARD_REV);
1405 u8 chip_rev = readb(slot->host->ioaddr + SYSKT_CHIP_REV);
1406 dev_info(&slot->chip->pdev->dev, "SysKonnect CardBus2SDIO, "
1407 "board rev %d.%d, chip rev %d.%d\n",
1408 board_rev >> 4, board_rev & 0xf,
1409 chip_rev >> 4, chip_rev & 0xf);
1410 if (chip_rev >= 0x20)
1411 slot->host->quirks |= SDHCI_QUIRK_FORCE_DMA;
1413 writeb(SYSKT_POWER_330, slot->host->ioaddr + SYSKT_POWER_DATA);
1414 writeb(SYSKT_POWER_START, slot->host->ioaddr + SYSKT_POWER_CMD);
1416 tm = 10; /* Wait max 1 ms */
1418 ps = readw(slot->host->ioaddr + SYSKT_POWER_STATUS);
1419 if (ps & SYSKT_POWER_STATUS_OK)
1424 dev_err(&slot->chip->pdev->dev,
1425 "power regulator never stabilized");
1426 writeb(0, slot->host->ioaddr + SYSKT_POWER_CMD);
1433 static const struct sdhci_pci_fixes sdhci_syskt = {
1434 .quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER,
1435 .probe = syskt_probe,
1436 .probe_slot = syskt_probe_slot,
1439 static int via_probe(struct sdhci_pci_chip *chip)
1441 if (chip->pdev->revision == 0x10)
1442 chip->quirks |= SDHCI_QUIRK_DELAY_AFTER_POWER;
1447 static const struct sdhci_pci_fixes sdhci_via = {
1451 static int rtsx_probe_slot(struct sdhci_pci_slot *slot)
1453 slot->host->mmc->caps2 |= MMC_CAP2_HS200;
1457 static const struct sdhci_pci_fixes sdhci_rtsx = {
1458 .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
1459 SDHCI_QUIRK2_BROKEN_64_BIT_DMA |
1460 SDHCI_QUIRK2_BROKEN_DDR50,
1461 .probe_slot = rtsx_probe_slot,
1464 /*AMD chipset generation*/
1465 enum amd_chipset_gen {
1466 AMD_CHIPSET_BEFORE_ML,
1469 AMD_CHIPSET_UNKNOWN,
1473 #define AMD_SD_AUTO_PATTERN 0xB8
1474 #define AMD_MSLEEP_DURATION 4
1475 #define AMD_SD_MISC_CONTROL 0xD0
1476 #define AMD_MAX_TUNE_VALUE 0x0B
1477 #define AMD_AUTO_TUNE_SEL 0x10800
1478 #define AMD_FIFO_PTR 0x30
1479 #define AMD_BIT_MASK 0x1F
1481 static void amd_tuning_reset(struct sdhci_host *host)
1485 val = sdhci_readw(host, SDHCI_HOST_CONTROL2);
1486 val |= SDHCI_CTRL_PRESET_VAL_ENABLE | SDHCI_CTRL_EXEC_TUNING;
1487 sdhci_writew(host, val, SDHCI_HOST_CONTROL2);
1489 val = sdhci_readw(host, SDHCI_HOST_CONTROL2);
1490 val &= ~SDHCI_CTRL_EXEC_TUNING;
1491 sdhci_writew(host, val, SDHCI_HOST_CONTROL2);
1494 static void amd_config_tuning_phase(struct pci_dev *pdev, u8 phase)
1498 pci_read_config_dword(pdev, AMD_SD_AUTO_PATTERN, &val);
1499 val &= ~AMD_BIT_MASK;
1500 val |= (AMD_AUTO_TUNE_SEL | (phase << 1));
1501 pci_write_config_dword(pdev, AMD_SD_AUTO_PATTERN, val);
1504 static void amd_enable_manual_tuning(struct pci_dev *pdev)
1508 pci_read_config_dword(pdev, AMD_SD_MISC_CONTROL, &val);
1509 val |= AMD_FIFO_PTR;
1510 pci_write_config_dword(pdev, AMD_SD_MISC_CONTROL, val);
1513 static int amd_execute_tuning_hs200(struct sdhci_host *host, u32 opcode)
1515 struct sdhci_pci_slot *slot = sdhci_priv(host);
1516 struct pci_dev *pdev = slot->chip->pdev;
1518 u8 valid_win_max = 0;
1519 u8 valid_win_end = 0;
1520 u8 ctrl, tune_around;
1522 amd_tuning_reset(host);
1524 for (tune_around = 0; tune_around < 12; tune_around++) {
1525 amd_config_tuning_phase(pdev, tune_around);
1527 if (mmc_send_tuning(host->mmc, opcode, NULL)) {
1529 msleep(AMD_MSLEEP_DURATION);
1530 ctrl = SDHCI_RESET_CMD | SDHCI_RESET_DATA;
1531 sdhci_writeb(host, ctrl, SDHCI_SOFTWARE_RESET);
1532 } else if (++valid_win > valid_win_max) {
1533 valid_win_max = valid_win;
1534 valid_win_end = tune_around;
1538 if (!valid_win_max) {
1539 dev_err(&pdev->dev, "no tuning point found\n");
1543 amd_config_tuning_phase(pdev, valid_win_end - valid_win_max / 2);
1545 amd_enable_manual_tuning(pdev);
1547 host->mmc->retune_period = 0;
1552 static int amd_execute_tuning(struct mmc_host *mmc, u32 opcode)
1554 struct sdhci_host *host = mmc_priv(mmc);
1556 /* AMD requires custom HS200 tuning */
1557 if (host->timing == MMC_TIMING_MMC_HS200)
1558 return amd_execute_tuning_hs200(host, opcode);
1560 /* Otherwise perform standard SDHCI tuning */
1561 return sdhci_execute_tuning(mmc, opcode);
1564 static int amd_probe_slot(struct sdhci_pci_slot *slot)
1566 struct mmc_host_ops *ops = &slot->host->mmc_host_ops;
1568 ops->execute_tuning = amd_execute_tuning;
1573 static int amd_probe(struct sdhci_pci_chip *chip)
1575 struct pci_dev *smbus_dev;
1576 enum amd_chipset_gen gen;
1578 smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
1579 PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
1581 gen = AMD_CHIPSET_BEFORE_ML;
1583 smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
1584 PCI_DEVICE_ID_AMD_KERNCZ_SMBUS, NULL);
1586 if (smbus_dev->revision < 0x51)
1587 gen = AMD_CHIPSET_CZ;
1589 gen = AMD_CHIPSET_NL;
1591 gen = AMD_CHIPSET_UNKNOWN;
1595 if (gen == AMD_CHIPSET_BEFORE_ML || gen == AMD_CHIPSET_CZ)
1596 chip->quirks2 |= SDHCI_QUIRK2_CLEAR_TRANSFERMODE_REG_BEFORE_CMD;
1601 static u32 sdhci_read_present_state(struct sdhci_host *host)
1603 return sdhci_readl(host, SDHCI_PRESENT_STATE);
1606 static void amd_sdhci_reset(struct sdhci_host *host, u8 mask)
1608 struct sdhci_pci_slot *slot = sdhci_priv(host);
1609 struct pci_dev *pdev = slot->chip->pdev;
1613 * SDHC 0x7906 requires a hard reset to clear all internal state.
1614 * Otherwise it can get into a bad state where the DATA lines are always
1617 if (pdev->device == 0x7906 && (mask & SDHCI_RESET_ALL)) {
1618 pci_clear_master(pdev);
1620 pci_save_state(pdev);
1622 pci_set_power_state(pdev, PCI_D3cold);
1623 pr_debug("%s: power_state=%u\n", mmc_hostname(host->mmc),
1624 pdev->current_state);
1625 pci_set_power_state(pdev, PCI_D0);
1627 pci_restore_state(pdev);
1630 * SDHCI_RESET_ALL says the card detect logic should not be
1631 * reset, but since we need to reset the entire controller
1632 * we should wait until the card detect logic has stabilized.
1634 * This normally takes about 40ms.
1637 sdhci_read_present_state,
1640 present_state & SDHCI_CD_STABLE,
1646 return sdhci_reset(host, mask);
1649 static const struct sdhci_ops amd_sdhci_pci_ops = {
1650 .set_clock = sdhci_set_clock,
1651 .enable_dma = sdhci_pci_enable_dma,
1652 .set_bus_width = sdhci_set_bus_width,
1653 .reset = amd_sdhci_reset,
1654 .set_uhs_signaling = sdhci_set_uhs_signaling,
1657 static const struct sdhci_pci_fixes sdhci_amd = {
1659 .ops = &amd_sdhci_pci_ops,
1660 .probe_slot = amd_probe_slot,
1663 static const struct pci_device_id pci_ids[] = {
1664 SDHCI_PCI_DEVICE(RICOH, R5C822, ricoh),
1665 SDHCI_PCI_DEVICE(RICOH, R5C843, ricoh_mmc),
1666 SDHCI_PCI_DEVICE(RICOH, R5CE822, ricoh_mmc),
1667 SDHCI_PCI_DEVICE(RICOH, R5CE823, ricoh_mmc),
1668 SDHCI_PCI_DEVICE(ENE, CB712_SD, ene_712),
1669 SDHCI_PCI_DEVICE(ENE, CB712_SD_2, ene_712),
1670 SDHCI_PCI_DEVICE(ENE, CB714_SD, ene_714),
1671 SDHCI_PCI_DEVICE(ENE, CB714_SD_2, ene_714),
1672 SDHCI_PCI_DEVICE(MARVELL, 88ALP01_SD, cafe),
1673 SDHCI_PCI_DEVICE(JMICRON, JMB38X_SD, jmicron),
1674 SDHCI_PCI_DEVICE(JMICRON, JMB38X_MMC, jmicron),
1675 SDHCI_PCI_DEVICE(JMICRON, JMB388_SD, jmicron),
1676 SDHCI_PCI_DEVICE(JMICRON, JMB388_ESD, jmicron),
1677 SDHCI_PCI_DEVICE(SYSKONNECT, 8000, syskt),
1678 SDHCI_PCI_DEVICE(VIA, 95D0, via),
1679 SDHCI_PCI_DEVICE(REALTEK, 5250, rtsx),
1680 SDHCI_PCI_DEVICE(INTEL, QRK_SD, intel_qrk),
1681 SDHCI_PCI_DEVICE(INTEL, MRST_SD0, intel_mrst_hc0),
1682 SDHCI_PCI_DEVICE(INTEL, MRST_SD1, intel_mrst_hc1_hc2),
1683 SDHCI_PCI_DEVICE(INTEL, MRST_SD2, intel_mrst_hc1_hc2),
1684 SDHCI_PCI_DEVICE(INTEL, MFD_SD, intel_mfd_sd),
1685 SDHCI_PCI_DEVICE(INTEL, MFD_SDIO1, intel_mfd_sdio),
1686 SDHCI_PCI_DEVICE(INTEL, MFD_SDIO2, intel_mfd_sdio),
1687 SDHCI_PCI_DEVICE(INTEL, MFD_EMMC0, intel_mfd_emmc),
1688 SDHCI_PCI_DEVICE(INTEL, MFD_EMMC1, intel_mfd_emmc),
1689 SDHCI_PCI_DEVICE(INTEL, PCH_SDIO0, intel_pch_sdio),
1690 SDHCI_PCI_DEVICE(INTEL, PCH_SDIO1, intel_pch_sdio),
1691 SDHCI_PCI_DEVICE(INTEL, BYT_EMMC, intel_byt_emmc),
1692 SDHCI_PCI_SUBDEVICE(INTEL, BYT_SDIO, NI, 7884, ni_byt_sdio),
1693 SDHCI_PCI_DEVICE(INTEL, BYT_SDIO, intel_byt_sdio),
1694 SDHCI_PCI_DEVICE(INTEL, BYT_SD, intel_byt_sd),
1695 SDHCI_PCI_DEVICE(INTEL, BYT_EMMC2, intel_byt_emmc),
1696 SDHCI_PCI_DEVICE(INTEL, BSW_EMMC, intel_byt_emmc),
1697 SDHCI_PCI_DEVICE(INTEL, BSW_SDIO, intel_byt_sdio),
1698 SDHCI_PCI_DEVICE(INTEL, BSW_SD, intel_byt_sd),
1699 SDHCI_PCI_DEVICE(INTEL, CLV_SDIO0, intel_mfd_sd),
1700 SDHCI_PCI_DEVICE(INTEL, CLV_SDIO1, intel_mfd_sdio),
1701 SDHCI_PCI_DEVICE(INTEL, CLV_SDIO2, intel_mfd_sdio),
1702 SDHCI_PCI_DEVICE(INTEL, CLV_EMMC0, intel_mfd_emmc),
1703 SDHCI_PCI_DEVICE(INTEL, CLV_EMMC1, intel_mfd_emmc),
1704 SDHCI_PCI_DEVICE(INTEL, MRFLD_MMC, intel_mrfld_mmc),
1705 SDHCI_PCI_DEVICE(INTEL, SPT_EMMC, intel_byt_emmc),
1706 SDHCI_PCI_DEVICE(INTEL, SPT_SDIO, intel_byt_sdio),
1707 SDHCI_PCI_DEVICE(INTEL, SPT_SD, intel_byt_sd),
1708 SDHCI_PCI_DEVICE(INTEL, DNV_EMMC, intel_byt_emmc),
1709 SDHCI_PCI_DEVICE(INTEL, CDF_EMMC, intel_glk_emmc),
1710 SDHCI_PCI_DEVICE(INTEL, BXT_EMMC, intel_byt_emmc),
1711 SDHCI_PCI_DEVICE(INTEL, BXT_SDIO, intel_byt_sdio),
1712 SDHCI_PCI_DEVICE(INTEL, BXT_SD, intel_byt_sd),
1713 SDHCI_PCI_DEVICE(INTEL, BXTM_EMMC, intel_byt_emmc),
1714 SDHCI_PCI_DEVICE(INTEL, BXTM_SDIO, intel_byt_sdio),
1715 SDHCI_PCI_DEVICE(INTEL, BXTM_SD, intel_byt_sd),
1716 SDHCI_PCI_DEVICE(INTEL, APL_EMMC, intel_byt_emmc),
1717 SDHCI_PCI_DEVICE(INTEL, APL_SDIO, intel_byt_sdio),
1718 SDHCI_PCI_DEVICE(INTEL, APL_SD, intel_byt_sd),
1719 SDHCI_PCI_DEVICE(INTEL, GLK_EMMC, intel_glk_emmc),
1720 SDHCI_PCI_DEVICE(INTEL, GLK_SDIO, intel_byt_sdio),
1721 SDHCI_PCI_DEVICE(INTEL, GLK_SD, intel_byt_sd),
1722 SDHCI_PCI_DEVICE(INTEL, CNP_EMMC, intel_glk_emmc),
1723 SDHCI_PCI_DEVICE(INTEL, CNP_SD, intel_byt_sd),
1724 SDHCI_PCI_DEVICE(INTEL, CNPH_SD, intel_byt_sd),
1725 SDHCI_PCI_DEVICE(INTEL, ICP_EMMC, intel_glk_emmc),
1726 SDHCI_PCI_DEVICE(INTEL, ICP_SD, intel_byt_sd),
1727 SDHCI_PCI_DEVICE(INTEL, EHL_EMMC, intel_glk_emmc),
1728 SDHCI_PCI_DEVICE(INTEL, EHL_SD, intel_byt_sd),
1729 SDHCI_PCI_DEVICE(INTEL, CML_EMMC, intel_glk_emmc),
1730 SDHCI_PCI_DEVICE(INTEL, CML_SD, intel_byt_sd),
1731 SDHCI_PCI_DEVICE(INTEL, CMLH_SD, intel_byt_sd),
1732 SDHCI_PCI_DEVICE(INTEL, JSL_EMMC, intel_glk_emmc),
1733 SDHCI_PCI_DEVICE(INTEL, JSL_SD, intel_byt_sd),
1734 SDHCI_PCI_DEVICE(O2, 8120, o2),
1735 SDHCI_PCI_DEVICE(O2, 8220, o2),
1736 SDHCI_PCI_DEVICE(O2, 8221, o2),
1737 SDHCI_PCI_DEVICE(O2, 8320, o2),
1738 SDHCI_PCI_DEVICE(O2, 8321, o2),
1739 SDHCI_PCI_DEVICE(O2, FUJIN2, o2),
1740 SDHCI_PCI_DEVICE(O2, SDS0, o2),
1741 SDHCI_PCI_DEVICE(O2, SDS1, o2),
1742 SDHCI_PCI_DEVICE(O2, SEABIRD0, o2),
1743 SDHCI_PCI_DEVICE(O2, SEABIRD1, o2),
1744 SDHCI_PCI_DEVICE(ARASAN, PHY_EMMC, arasan),
1745 SDHCI_PCI_DEVICE(SYNOPSYS, DWC_MSHC, snps),
1746 SDHCI_PCI_DEVICE(GLI, 9750, gl9750),
1747 SDHCI_PCI_DEVICE(GLI, 9755, gl9755),
1748 SDHCI_PCI_DEVICE(GLI, 9763E, gl9763e),
1749 SDHCI_PCI_DEVICE_CLASS(AMD, SYSTEM_SDHCI, PCI_CLASS_MASK, amd),
1750 /* Generic SD host controller */
1751 {PCI_DEVICE_CLASS(SYSTEM_SDHCI, PCI_CLASS_MASK)},
1752 { /* end: all zeroes */ },
1755 MODULE_DEVICE_TABLE(pci, pci_ids);
1757 /*****************************************************************************\
1759 * SDHCI core callbacks *
1761 \*****************************************************************************/
1763 int sdhci_pci_enable_dma(struct sdhci_host *host)
1765 struct sdhci_pci_slot *slot;
1766 struct pci_dev *pdev;
1768 slot = sdhci_priv(host);
1769 pdev = slot->chip->pdev;
1771 if (((pdev->class & 0xFFFF00) == (PCI_CLASS_SYSTEM_SDHCI << 8)) &&
1772 ((pdev->class & 0x0000FF) != PCI_SDHCI_IFDMA) &&
1773 (host->flags & SDHCI_USE_SDMA)) {
1774 dev_warn(&pdev->dev, "Will use DMA mode even though HW "
1775 "doesn't fully claim to support it.\n");
1778 pci_set_master(pdev);
1783 static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
1785 struct sdhci_pci_slot *slot = sdhci_priv(host);
1786 int rst_n_gpio = slot->rst_n_gpio;
1788 if (!gpio_is_valid(rst_n_gpio))
1790 gpio_set_value_cansleep(rst_n_gpio, 0);
1791 /* For eMMC, minimum is 1us but give it 10us for good measure */
1793 gpio_set_value_cansleep(rst_n_gpio, 1);
1794 /* For eMMC, minimum is 200us but give it 300us for good measure */
1795 usleep_range(300, 1000);
1798 static void sdhci_pci_hw_reset(struct sdhci_host *host)
1800 struct sdhci_pci_slot *slot = sdhci_priv(host);
1803 slot->hw_reset(host);
1806 static const struct sdhci_ops sdhci_pci_ops = {
1807 .set_clock = sdhci_set_clock,
1808 .enable_dma = sdhci_pci_enable_dma,
1809 .set_bus_width = sdhci_set_bus_width,
1810 .reset = sdhci_reset,
1811 .set_uhs_signaling = sdhci_set_uhs_signaling,
1812 .hw_reset = sdhci_pci_hw_reset,
1815 /*****************************************************************************\
1819 \*****************************************************************************/
1821 #ifdef CONFIG_PM_SLEEP
1822 static int sdhci_pci_suspend(struct device *dev)
1824 struct sdhci_pci_chip *chip = dev_get_drvdata(dev);
1829 if (chip->fixes && chip->fixes->suspend)
1830 return chip->fixes->suspend(chip);
1832 return sdhci_pci_suspend_host(chip);
1835 static int sdhci_pci_resume(struct device *dev)
1837 struct sdhci_pci_chip *chip = dev_get_drvdata(dev);
1842 if (chip->fixes && chip->fixes->resume)
1843 return chip->fixes->resume(chip);
1845 return sdhci_pci_resume_host(chip);
1850 static int sdhci_pci_runtime_suspend(struct device *dev)
1852 struct sdhci_pci_chip *chip = dev_get_drvdata(dev);
1857 if (chip->fixes && chip->fixes->runtime_suspend)
1858 return chip->fixes->runtime_suspend(chip);
1860 return sdhci_pci_runtime_suspend_host(chip);
1863 static int sdhci_pci_runtime_resume(struct device *dev)
1865 struct sdhci_pci_chip *chip = dev_get_drvdata(dev);
1870 if (chip->fixes && chip->fixes->runtime_resume)
1871 return chip->fixes->runtime_resume(chip);
1873 return sdhci_pci_runtime_resume_host(chip);
1877 static const struct dev_pm_ops sdhci_pci_pm_ops = {
1878 SET_SYSTEM_SLEEP_PM_OPS(sdhci_pci_suspend, sdhci_pci_resume)
1879 SET_RUNTIME_PM_OPS(sdhci_pci_runtime_suspend,
1880 sdhci_pci_runtime_resume, NULL)
1883 /*****************************************************************************\
1885 * Device probing/removal *
1887 \*****************************************************************************/
1889 static struct sdhci_pci_slot *sdhci_pci_probe_slot(
1890 struct pci_dev *pdev, struct sdhci_pci_chip *chip, int first_bar,
1893 struct sdhci_pci_slot *slot;
1894 struct sdhci_host *host;
1895 int ret, bar = first_bar + slotno;
1896 size_t priv_size = chip->fixes ? chip->fixes->priv_size : 0;
1898 if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
1899 dev_err(&pdev->dev, "BAR %d is not iomem. Aborting.\n", bar);
1900 return ERR_PTR(-ENODEV);
1903 if (pci_resource_len(pdev, bar) < 0x100) {
1904 dev_err(&pdev->dev, "Invalid iomem size. You may "
1905 "experience problems.\n");
1908 if ((pdev->class & 0x0000FF) == PCI_SDHCI_IFVENDOR) {
1909 dev_err(&pdev->dev, "Vendor specific interface. Aborting.\n");
1910 return ERR_PTR(-ENODEV);
1913 if ((pdev->class & 0x0000FF) > PCI_SDHCI_IFVENDOR) {
1914 dev_err(&pdev->dev, "Unknown interface. Aborting.\n");
1915 return ERR_PTR(-ENODEV);
1918 host = sdhci_alloc_host(&pdev->dev, sizeof(*slot) + priv_size);
1920 dev_err(&pdev->dev, "cannot allocate host\n");
1921 return ERR_CAST(host);
1924 slot = sdhci_priv(host);
1928 slot->rst_n_gpio = -EINVAL;
1929 slot->cd_gpio = -EINVAL;
1932 /* Retrieve platform data if there is any */
1933 if (*sdhci_pci_get_data)
1934 slot->data = sdhci_pci_get_data(pdev, slotno);
1937 if (slot->data->setup) {
1938 ret = slot->data->setup(slot->data);
1940 dev_err(&pdev->dev, "platform setup failed\n");
1944 slot->rst_n_gpio = slot->data->rst_n_gpio;
1945 slot->cd_gpio = slot->data->cd_gpio;
1948 host->hw_name = "PCI";
1949 host->ops = chip->fixes && chip->fixes->ops ?
1952 host->quirks = chip->quirks;
1953 host->quirks2 = chip->quirks2;
1955 host->irq = pdev->irq;
1957 ret = pcim_iomap_regions(pdev, BIT(bar), mmc_hostname(host->mmc));
1959 dev_err(&pdev->dev, "cannot request region\n");
1963 host->ioaddr = pcim_iomap_table(pdev)[bar];
1965 if (chip->fixes && chip->fixes->probe_slot) {
1966 ret = chip->fixes->probe_slot(slot);
1971 if (gpio_is_valid(slot->rst_n_gpio)) {
1972 if (!devm_gpio_request(&pdev->dev, slot->rst_n_gpio, "eMMC_reset")) {
1973 gpio_direction_output(slot->rst_n_gpio, 1);
1974 slot->host->mmc->caps |= MMC_CAP_HW_RESET;
1975 slot->hw_reset = sdhci_pci_gpio_hw_reset;
1977 dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
1978 slot->rst_n_gpio = -EINVAL;
1982 host->mmc->pm_caps = MMC_PM_KEEP_POWER;
1983 host->mmc->slotno = slotno;
1984 host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
1986 if (device_can_wakeup(&pdev->dev))
1987 host->mmc->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
1989 if (host->mmc->caps & MMC_CAP_CD_WAKE)
1990 device_init_wakeup(&pdev->dev, true);
1992 if (slot->cd_idx >= 0) {
1993 ret = mmc_gpiod_request_cd(host->mmc, "cd", slot->cd_idx,
1994 slot->cd_override_level, 0);
1995 if (ret && ret != -EPROBE_DEFER)
1996 ret = mmc_gpiod_request_cd(host->mmc, NULL,
1998 slot->cd_override_level,
2000 if (ret == -EPROBE_DEFER)
2004 dev_warn(&pdev->dev, "failed to setup card detect gpio\n");
2009 if (chip->fixes && chip->fixes->add_host)
2010 ret = chip->fixes->add_host(slot);
2012 ret = sdhci_add_host(host);
2016 sdhci_pci_add_own_cd(slot);
2019 * Check if the chip needs a separate GPIO for card detect to wake up
2020 * from runtime suspend. If it is not there, don't allow runtime PM.
2021 * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
2023 if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
2024 !gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0)
2025 chip->allow_runtime_pm = false;
2030 if (chip->fixes && chip->fixes->remove_slot)
2031 chip->fixes->remove_slot(slot, 0);
2034 if (slot->data && slot->data->cleanup)
2035 slot->data->cleanup(slot->data);
2038 sdhci_free_host(host);
2040 return ERR_PTR(ret);
2043 static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
2048 sdhci_pci_remove_own_cd(slot);
2051 scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS);
2052 if (scratch == (u32)-1)
2055 sdhci_remove_host(slot->host, dead);
2057 if (slot->chip->fixes && slot->chip->fixes->remove_slot)
2058 slot->chip->fixes->remove_slot(slot, dead);
2060 if (slot->data && slot->data->cleanup)
2061 slot->data->cleanup(slot->data);
2063 sdhci_free_host(slot->host);
2066 static void sdhci_pci_runtime_pm_allow(struct device *dev)
2068 pm_suspend_ignore_children(dev, 1);
2069 pm_runtime_set_autosuspend_delay(dev, 50);
2070 pm_runtime_use_autosuspend(dev);
2071 pm_runtime_allow(dev);
2072 /* Stay active until mmc core scans for a card */
2073 pm_runtime_put_noidle(dev);
2076 static void sdhci_pci_runtime_pm_forbid(struct device *dev)
2078 pm_runtime_forbid(dev);
2079 pm_runtime_get_noresume(dev);
2082 static int sdhci_pci_probe(struct pci_dev *pdev,
2083 const struct pci_device_id *ent)
2085 struct sdhci_pci_chip *chip;
2086 struct sdhci_pci_slot *slot;
2088 u8 slots, first_bar;
2091 BUG_ON(pdev == NULL);
2092 BUG_ON(ent == NULL);
2094 dev_info(&pdev->dev, "SDHCI controller found [%04x:%04x] (rev %x)\n",
2095 (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
2097 ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &slots);
2101 slots = PCI_SLOT_INFO_SLOTS(slots) + 1;
2102 dev_dbg(&pdev->dev, "found %d slot(s)\n", slots);
2104 BUG_ON(slots > MAX_SLOTS);
2106 ret = pci_read_config_byte(pdev, PCI_SLOT_INFO, &first_bar);
2110 first_bar &= PCI_SLOT_INFO_FIRST_BAR_MASK;
2112 if (first_bar > 5) {
2113 dev_err(&pdev->dev, "Invalid first BAR. Aborting.\n");
2117 ret = pcim_enable_device(pdev);
2121 chip = devm_kzalloc(&pdev->dev, sizeof(*chip), GFP_KERNEL);
2126 chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data;
2128 chip->quirks = chip->fixes->quirks;
2129 chip->quirks2 = chip->fixes->quirks2;
2130 chip->allow_runtime_pm = chip->fixes->allow_runtime_pm;
2132 chip->num_slots = slots;
2133 chip->pm_retune = true;
2134 chip->rpm_retune = true;
2136 pci_set_drvdata(pdev, chip);
2138 if (chip->fixes && chip->fixes->probe) {
2139 ret = chip->fixes->probe(chip);
2144 slots = chip->num_slots; /* Quirk may have changed this */
2146 for (i = 0; i < slots; i++) {
2147 slot = sdhci_pci_probe_slot(pdev, chip, first_bar, i);
2149 for (i--; i >= 0; i--)
2150 sdhci_pci_remove_slot(chip->slots[i]);
2151 return PTR_ERR(slot);
2154 chip->slots[i] = slot;
2157 if (chip->allow_runtime_pm)
2158 sdhci_pci_runtime_pm_allow(&pdev->dev);
2163 static void sdhci_pci_remove(struct pci_dev *pdev)
2166 struct sdhci_pci_chip *chip = pci_get_drvdata(pdev);
2168 if (chip->allow_runtime_pm)
2169 sdhci_pci_runtime_pm_forbid(&pdev->dev);
2171 for (i = 0; i < chip->num_slots; i++)
2172 sdhci_pci_remove_slot(chip->slots[i]);
2175 static struct pci_driver sdhci_driver = {
2176 .name = "sdhci-pci",
2177 .id_table = pci_ids,
2178 .probe = sdhci_pci_probe,
2179 .remove = sdhci_pci_remove,
2181 .pm = &sdhci_pci_pm_ops
2185 module_pci_driver(sdhci_driver);
2188 MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
2189 MODULE_LICENSE("GPL");