1c4e05037SAdrian Hunter /* 2c4e05037SAdrian Hunter * Secure Digital Host Controller Interface ACPI driver. 3c4e05037SAdrian Hunter * 4c4e05037SAdrian Hunter * Copyright (c) 2012, Intel Corporation. 5c4e05037SAdrian Hunter * 6c4e05037SAdrian Hunter * This program is free software; you can redistribute it and/or modify it 7c4e05037SAdrian Hunter * under the terms and conditions of the GNU General Public License, 8c4e05037SAdrian Hunter * version 2, as published by the Free Software Foundation. 9c4e05037SAdrian Hunter * 10c4e05037SAdrian Hunter * This program is distributed in the hope it will be useful, but WITHOUT 11c4e05037SAdrian Hunter * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12c4e05037SAdrian Hunter * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13c4e05037SAdrian Hunter * more details. 14c4e05037SAdrian Hunter * 15c4e05037SAdrian Hunter * You should have received a copy of the GNU General Public License along with 16c4e05037SAdrian Hunter * this program; if not, write to the Free Software Foundation, Inc., 17c4e05037SAdrian Hunter * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 18c4e05037SAdrian Hunter * 19c4e05037SAdrian Hunter */ 20c4e05037SAdrian Hunter 21c4e05037SAdrian Hunter #include <linux/init.h> 22c4e05037SAdrian Hunter #include <linux/export.h> 23c4e05037SAdrian Hunter #include <linux/module.h> 24c4e05037SAdrian Hunter #include <linux/device.h> 25c4e05037SAdrian Hunter #include <linux/platform_device.h> 26c4e05037SAdrian Hunter #include <linux/ioport.h> 27c4e05037SAdrian Hunter #include <linux/io.h> 28c4e05037SAdrian Hunter #include <linux/dma-mapping.h> 29c4e05037SAdrian Hunter #include <linux/compiler.h> 30c4e05037SAdrian Hunter #include <linux/stddef.h> 31c4e05037SAdrian Hunter #include <linux/bitops.h> 32c4e05037SAdrian Hunter #include <linux/types.h> 33c4e05037SAdrian Hunter #include <linux/err.h> 34c4e05037SAdrian Hunter #include <linux/interrupt.h> 35c4e05037SAdrian Hunter #include <linux/acpi.h> 36c4e05037SAdrian Hunter #include <linux/pm.h> 37c4e05037SAdrian Hunter #include <linux/pm_runtime.h> 38b04fa064SAdrian Hunter #include <linux/delay.h> 39c4e05037SAdrian Hunter 40c4e05037SAdrian Hunter #include <linux/mmc/host.h> 41c4e05037SAdrian Hunter #include <linux/mmc/pm.h> 424fd4409cSAdrian Hunter #include <linux/mmc/slot-gpio.h> 43c4e05037SAdrian Hunter 44c4e05037SAdrian Hunter #include "sdhci.h" 45c4e05037SAdrian Hunter 46c4e05037SAdrian Hunter enum { 47c4e05037SAdrian Hunter SDHCI_ACPI_SD_CD = BIT(0), 48c4e05037SAdrian Hunter SDHCI_ACPI_RUNTIME_PM = BIT(1), 494fd4409cSAdrian Hunter SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL = BIT(2), 50c4e05037SAdrian Hunter }; 51c4e05037SAdrian Hunter 52c4e05037SAdrian Hunter struct sdhci_acpi_chip { 53c4e05037SAdrian Hunter const struct sdhci_ops *ops; 54c4e05037SAdrian Hunter unsigned int quirks; 55c4e05037SAdrian Hunter unsigned int quirks2; 56c4e05037SAdrian Hunter unsigned long caps; 57c4e05037SAdrian Hunter unsigned int caps2; 58c4e05037SAdrian Hunter mmc_pm_flag_t pm_caps; 59c4e05037SAdrian Hunter }; 60c4e05037SAdrian Hunter 61c4e05037SAdrian Hunter struct sdhci_acpi_slot { 62c4e05037SAdrian Hunter const struct sdhci_acpi_chip *chip; 63c4e05037SAdrian Hunter unsigned int quirks; 64c4e05037SAdrian Hunter unsigned int quirks2; 65c4e05037SAdrian Hunter unsigned long caps; 66c4e05037SAdrian Hunter unsigned int caps2; 67c4e05037SAdrian Hunter mmc_pm_flag_t pm_caps; 68c4e05037SAdrian Hunter unsigned int flags; 697dafca83SAdrian Hunter int (*probe_slot)(struct platform_device *, const char *, const char *); 70578b36b6SGao, Yunpeng int (*remove_slot)(struct platform_device *); 71c4e05037SAdrian Hunter }; 72c4e05037SAdrian Hunter 73c4e05037SAdrian Hunter struct sdhci_acpi_host { 74c4e05037SAdrian Hunter struct sdhci_host *host; 75c4e05037SAdrian Hunter const struct sdhci_acpi_slot *slot; 76c4e05037SAdrian Hunter struct platform_device *pdev; 77c4e05037SAdrian Hunter bool use_runtime_pm; 784f64f843SAdrian Hunter bool dma_setup; 79c4e05037SAdrian Hunter }; 80c4e05037SAdrian Hunter 81c4e05037SAdrian Hunter static inline bool sdhci_acpi_flag(struct sdhci_acpi_host *c, unsigned int flag) 82c4e05037SAdrian Hunter { 83c4e05037SAdrian Hunter return c->slot && (c->slot->flags & flag); 84c4e05037SAdrian Hunter } 85c4e05037SAdrian Hunter 86c4e05037SAdrian Hunter static int sdhci_acpi_enable_dma(struct sdhci_host *host) 87c4e05037SAdrian Hunter { 884f64f843SAdrian Hunter struct sdhci_acpi_host *c = sdhci_priv(host); 894f64f843SAdrian Hunter struct device *dev = &c->pdev->dev; 904f64f843SAdrian Hunter int err = -1; 914f64f843SAdrian Hunter 924f64f843SAdrian Hunter if (c->dma_setup) 93c4e05037SAdrian Hunter return 0; 944f64f843SAdrian Hunter 954f64f843SAdrian Hunter if (host->flags & SDHCI_USE_64_BIT_DMA) { 964f64f843SAdrian Hunter if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA) { 974f64f843SAdrian Hunter host->flags &= ~SDHCI_USE_64_BIT_DMA; 984f64f843SAdrian Hunter } else { 994f64f843SAdrian Hunter err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)); 1004f64f843SAdrian Hunter if (err) 1014f64f843SAdrian Hunter dev_warn(dev, "Failed to set 64-bit DMA mask\n"); 1024f64f843SAdrian Hunter } 1034f64f843SAdrian Hunter } 1044f64f843SAdrian Hunter 1054f64f843SAdrian Hunter if (err) 1064f64f843SAdrian Hunter err = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); 1074f64f843SAdrian Hunter 1084f64f843SAdrian Hunter c->dma_setup = !err; 1094f64f843SAdrian Hunter 1104f64f843SAdrian Hunter return err; 111c4e05037SAdrian Hunter } 112c4e05037SAdrian Hunter 113b04fa064SAdrian Hunter static void sdhci_acpi_int_hw_reset(struct sdhci_host *host) 114b04fa064SAdrian Hunter { 115b04fa064SAdrian Hunter u8 reg; 116b04fa064SAdrian Hunter 117b04fa064SAdrian Hunter reg = sdhci_readb(host, SDHCI_POWER_CONTROL); 118b04fa064SAdrian Hunter reg |= 0x10; 119b04fa064SAdrian Hunter sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 120b04fa064SAdrian Hunter /* For eMMC, minimum is 1us but give it 9us for good measure */ 121b04fa064SAdrian Hunter udelay(9); 122b04fa064SAdrian Hunter reg &= ~0x10; 123b04fa064SAdrian Hunter sdhci_writeb(host, reg, SDHCI_POWER_CONTROL); 124b04fa064SAdrian Hunter /* For eMMC, minimum is 200us but give it 300us for good measure */ 125b04fa064SAdrian Hunter usleep_range(300, 1000); 126b04fa064SAdrian Hunter } 127b04fa064SAdrian Hunter 128c4e05037SAdrian Hunter static const struct sdhci_ops sdhci_acpi_ops_dflt = { 1291771059cSRussell King .set_clock = sdhci_set_clock, 130c4e05037SAdrian Hunter .enable_dma = sdhci_acpi_enable_dma, 1312317f56cSRussell King .set_bus_width = sdhci_set_bus_width, 13203231f9bSRussell King .reset = sdhci_reset, 13396d7b78cSRussell King .set_uhs_signaling = sdhci_set_uhs_signaling, 134c4e05037SAdrian Hunter }; 135c4e05037SAdrian Hunter 136b04fa064SAdrian Hunter static const struct sdhci_ops sdhci_acpi_ops_int = { 1371771059cSRussell King .set_clock = sdhci_set_clock, 138b04fa064SAdrian Hunter .enable_dma = sdhci_acpi_enable_dma, 1392317f56cSRussell King .set_bus_width = sdhci_set_bus_width, 14003231f9bSRussell King .reset = sdhci_reset, 14196d7b78cSRussell King .set_uhs_signaling = sdhci_set_uhs_signaling, 142b04fa064SAdrian Hunter .hw_reset = sdhci_acpi_int_hw_reset, 143b04fa064SAdrian Hunter }; 144b04fa064SAdrian Hunter 145b04fa064SAdrian Hunter static const struct sdhci_acpi_chip sdhci_acpi_chip_int = { 146b04fa064SAdrian Hunter .ops = &sdhci_acpi_ops_int, 147b04fa064SAdrian Hunter }; 148b04fa064SAdrian Hunter 1497dafca83SAdrian Hunter static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev, 1507dafca83SAdrian Hunter const char *hid, const char *uid) 151578b36b6SGao, Yunpeng { 152578b36b6SGao, Yunpeng struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 153578b36b6SGao, Yunpeng struct sdhci_host *host; 154578b36b6SGao, Yunpeng 155578b36b6SGao, Yunpeng if (!c || !c->host) 156578b36b6SGao, Yunpeng return 0; 157578b36b6SGao, Yunpeng 158578b36b6SGao, Yunpeng host = c->host; 159578b36b6SGao, Yunpeng 16094203042SAndy Shevchenko /* Platform specific code during emmc probe slot goes here */ 161578b36b6SGao, Yunpeng 1628024379eSAdrian Hunter if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") && 1638024379eSAdrian Hunter sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 && 1648024379eSAdrian Hunter sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807) 1658024379eSAdrian Hunter host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */ 1668024379eSAdrian Hunter 167578b36b6SGao, Yunpeng return 0; 168578b36b6SGao, Yunpeng } 169578b36b6SGao, Yunpeng 1707dafca83SAdrian Hunter static int sdhci_acpi_sdio_probe_slot(struct platform_device *pdev, 1717dafca83SAdrian Hunter const char *hid, const char *uid) 172578b36b6SGao, Yunpeng { 173578b36b6SGao, Yunpeng struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 174578b36b6SGao, Yunpeng struct sdhci_host *host; 175578b36b6SGao, Yunpeng 176578b36b6SGao, Yunpeng if (!c || !c->host) 177578b36b6SGao, Yunpeng return 0; 178578b36b6SGao, Yunpeng 179578b36b6SGao, Yunpeng host = c->host; 180578b36b6SGao, Yunpeng 18194203042SAndy Shevchenko /* Platform specific code during sdio probe slot goes here */ 182578b36b6SGao, Yunpeng 183578b36b6SGao, Yunpeng return 0; 184578b36b6SGao, Yunpeng } 185578b36b6SGao, Yunpeng 1867dafca83SAdrian Hunter static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev, 1877dafca83SAdrian Hunter const char *hid, const char *uid) 188578b36b6SGao, Yunpeng { 189578b36b6SGao, Yunpeng struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 190578b36b6SGao, Yunpeng struct sdhci_host *host; 191578b36b6SGao, Yunpeng 192578b36b6SGao, Yunpeng if (!c || !c->host || !c->slot) 193578b36b6SGao, Yunpeng return 0; 194578b36b6SGao, Yunpeng 195578b36b6SGao, Yunpeng host = c->host; 196578b36b6SGao, Yunpeng 19794203042SAndy Shevchenko /* Platform specific code during sd probe slot goes here */ 198578b36b6SGao, Yunpeng 199578b36b6SGao, Yunpeng return 0; 200578b36b6SGao, Yunpeng } 201578b36b6SGao, Yunpeng 20207a58883SAdrian Hunter static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { 203b04fa064SAdrian Hunter .chip = &sdhci_acpi_chip_int, 204f25c3372SMaurice Petallo .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | 2059d65cb88SAdrian Hunter MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR | 2069d65cb88SAdrian Hunter MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY, 20707a58883SAdrian Hunter .caps2 = MMC_CAP2_HC_ERASE_SZ, 20807a58883SAdrian Hunter .flags = SDHCI_ACPI_RUNTIME_PM, 209e1f5633aSAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 210e839b134SAdrian Hunter .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | 211e839b134SAdrian Hunter SDHCI_QUIRK2_STOP_WITH_TC | 212e839b134SAdrian Hunter SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400, 213578b36b6SGao, Yunpeng .probe_slot = sdhci_acpi_emmc_probe_slot, 21407a58883SAdrian Hunter }; 21507a58883SAdrian Hunter 216e5571397SAdrian Hunter static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = { 217e1f5633aSAdrian Hunter .quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION | 218e1f5633aSAdrian Hunter SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 219e5571397SAdrian Hunter .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON, 2209d65cb88SAdrian Hunter .caps = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD | 2219d65cb88SAdrian Hunter MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY, 222e5571397SAdrian Hunter .flags = SDHCI_ACPI_RUNTIME_PM, 223e5571397SAdrian Hunter .pm_caps = MMC_PM_KEEP_POWER, 224578b36b6SGao, Yunpeng .probe_slot = sdhci_acpi_sdio_probe_slot, 225e5571397SAdrian Hunter }; 226e5571397SAdrian Hunter 22707a58883SAdrian Hunter static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = { 2284fd4409cSAdrian Hunter .flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL | 2294fd4409cSAdrian Hunter SDHCI_ACPI_RUNTIME_PM, 230e1f5633aSAdrian Hunter .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, 231934e31b9SAdrian Hunter .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON | 232934e31b9SAdrian Hunter SDHCI_QUIRK2_STOP_WITH_TC, 2339d65cb88SAdrian Hunter .caps = MMC_CAP_BUS_WIDTH_TEST | MMC_CAP_WAIT_WHILE_BUSY, 234578b36b6SGao, Yunpeng .probe_slot = sdhci_acpi_sd_probe_slot, 23507a58883SAdrian Hunter }; 23607a58883SAdrian Hunter 23707a58883SAdrian Hunter struct sdhci_acpi_uid_slot { 23807a58883SAdrian Hunter const char *hid; 23907a58883SAdrian Hunter const char *uid; 24007a58883SAdrian Hunter const struct sdhci_acpi_slot *slot; 24107a58883SAdrian Hunter }; 24207a58883SAdrian Hunter 24307a58883SAdrian Hunter static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = { 244e839b134SAdrian Hunter { "80865ACA", NULL, &sdhci_acpi_slot_int_sd }, 245e839b134SAdrian Hunter { "80865ACC", NULL, &sdhci_acpi_slot_int_emmc }, 246e839b134SAdrian Hunter { "80865AD0", NULL, &sdhci_acpi_slot_int_sdio }, 24707a58883SAdrian Hunter { "80860F14" , "1" , &sdhci_acpi_slot_int_emmc }, 24807a58883SAdrian Hunter { "80860F14" , "3" , &sdhci_acpi_slot_int_sd }, 249aad95dc4SAdrian Hunter { "80860F16" , NULL, &sdhci_acpi_slot_int_sd }, 25007a58883SAdrian Hunter { "INT33BB" , "2" , &sdhci_acpi_slot_int_sdio }, 2517147eaf3SAdrian Hunter { "INT33BB" , "3" , &sdhci_acpi_slot_int_sd }, 25207a58883SAdrian Hunter { "INT33C6" , NULL, &sdhci_acpi_slot_int_sdio }, 25307c001c1SMika Westerberg { "INT3436" , NULL, &sdhci_acpi_slot_int_sdio }, 254d0ed8e6bSAdrian Hunter { "INT344D" , NULL, &sdhci_acpi_slot_int_sdio }, 2550cd2f044SMichele Curti { "PNP0FFF" , "3" , &sdhci_acpi_slot_int_sd }, 25607a58883SAdrian Hunter { "PNP0D40" }, 25707a58883SAdrian Hunter { }, 25807a58883SAdrian Hunter }; 25907a58883SAdrian Hunter 260c4e05037SAdrian Hunter static const struct acpi_device_id sdhci_acpi_ids[] = { 261e839b134SAdrian Hunter { "80865ACA" }, 262e839b134SAdrian Hunter { "80865ACC" }, 263e839b134SAdrian Hunter { "80865AD0" }, 26407a58883SAdrian Hunter { "80860F14" }, 265aad95dc4SAdrian Hunter { "80860F16" }, 26607a58883SAdrian Hunter { "INT33BB" }, 26707a58883SAdrian Hunter { "INT33C6" }, 26807c001c1SMika Westerberg { "INT3436" }, 269d0ed8e6bSAdrian Hunter { "INT344D" }, 270c4e05037SAdrian Hunter { "PNP0D40" }, 271c4e05037SAdrian Hunter { }, 272c4e05037SAdrian Hunter }; 273c4e05037SAdrian Hunter MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids); 274c4e05037SAdrian Hunter 2753db35251SAdrian Hunter static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid, 27607a58883SAdrian Hunter const char *uid) 277c4e05037SAdrian Hunter { 27807a58883SAdrian Hunter const struct sdhci_acpi_uid_slot *u; 279c4e05037SAdrian Hunter 28007a58883SAdrian Hunter for (u = sdhci_acpi_uids; u->hid; u++) { 28107a58883SAdrian Hunter if (strcmp(u->hid, hid)) 28207a58883SAdrian Hunter continue; 28307a58883SAdrian Hunter if (!u->uid) 28407a58883SAdrian Hunter return u->slot; 28507a58883SAdrian Hunter if (uid && !strcmp(u->uid, uid)) 28607a58883SAdrian Hunter return u->slot; 28707a58883SAdrian Hunter } 288c4e05037SAdrian Hunter return NULL; 289c4e05037SAdrian Hunter } 290c4e05037SAdrian Hunter 2914e608e4eSGreg Kroah-Hartman static int sdhci_acpi_probe(struct platform_device *pdev) 292c4e05037SAdrian Hunter { 293c4e05037SAdrian Hunter struct device *dev = &pdev->dev; 294c4e05037SAdrian Hunter acpi_handle handle = ACPI_HANDLE(dev); 295c4e05037SAdrian Hunter struct acpi_device *device; 296c4e05037SAdrian Hunter struct sdhci_acpi_host *c; 297c4e05037SAdrian Hunter struct sdhci_host *host; 298c4e05037SAdrian Hunter struct resource *iomem; 299c4e05037SAdrian Hunter resource_size_t len; 300c4e05037SAdrian Hunter const char *hid; 3013db35251SAdrian Hunter const char *uid; 30287875655SMika Westerberg int err; 303c4e05037SAdrian Hunter 304c4e05037SAdrian Hunter if (acpi_bus_get_device(handle, &device)) 305c4e05037SAdrian Hunter return -ENODEV; 306c4e05037SAdrian Hunter 307c4e05037SAdrian Hunter if (acpi_bus_get_status(device) || !device->status.present) 308c4e05037SAdrian Hunter return -ENODEV; 309c4e05037SAdrian Hunter 310c4e05037SAdrian Hunter hid = acpi_device_hid(device); 3113db35251SAdrian Hunter uid = device->pnp.unique_id; 312c4e05037SAdrian Hunter 313c4e05037SAdrian Hunter iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 314c4e05037SAdrian Hunter if (!iomem) 315c4e05037SAdrian Hunter return -ENOMEM; 316c4e05037SAdrian Hunter 317c4e05037SAdrian Hunter len = resource_size(iomem); 318c4e05037SAdrian Hunter if (len < 0x100) 319c4e05037SAdrian Hunter dev_err(dev, "Invalid iomem size!\n"); 320c4e05037SAdrian Hunter 321c4e05037SAdrian Hunter if (!devm_request_mem_region(dev, iomem->start, len, dev_name(dev))) 322c4e05037SAdrian Hunter return -ENOMEM; 323c4e05037SAdrian Hunter 324c4e05037SAdrian Hunter host = sdhci_alloc_host(dev, sizeof(struct sdhci_acpi_host)); 325c4e05037SAdrian Hunter if (IS_ERR(host)) 326c4e05037SAdrian Hunter return PTR_ERR(host); 327c4e05037SAdrian Hunter 328c4e05037SAdrian Hunter c = sdhci_priv(host); 329c4e05037SAdrian Hunter c->host = host; 3303db35251SAdrian Hunter c->slot = sdhci_acpi_get_slot(hid, uid); 331c4e05037SAdrian Hunter c->pdev = pdev; 332c4e05037SAdrian Hunter c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM); 333c4e05037SAdrian Hunter 334c4e05037SAdrian Hunter platform_set_drvdata(pdev, c); 335c4e05037SAdrian Hunter 336c4e05037SAdrian Hunter host->hw_name = "ACPI"; 337c4e05037SAdrian Hunter host->ops = &sdhci_acpi_ops_dflt; 338c4e05037SAdrian Hunter host->irq = platform_get_irq(pdev, 0); 339c4e05037SAdrian Hunter 340c4e05037SAdrian Hunter host->ioaddr = devm_ioremap_nocache(dev, iomem->start, 341c4e05037SAdrian Hunter resource_size(iomem)); 342c4e05037SAdrian Hunter if (host->ioaddr == NULL) { 343c4e05037SAdrian Hunter err = -ENOMEM; 344c4e05037SAdrian Hunter goto err_free; 345c4e05037SAdrian Hunter } 346c4e05037SAdrian Hunter 347c4e05037SAdrian Hunter if (c->slot) { 348578b36b6SGao, Yunpeng if (c->slot->probe_slot) { 3497dafca83SAdrian Hunter err = c->slot->probe_slot(pdev, hid, uid); 350578b36b6SGao, Yunpeng if (err) 351578b36b6SGao, Yunpeng goto err_free; 352578b36b6SGao, Yunpeng } 353c4e05037SAdrian Hunter if (c->slot->chip) { 354c4e05037SAdrian Hunter host->ops = c->slot->chip->ops; 355c4e05037SAdrian Hunter host->quirks |= c->slot->chip->quirks; 356c4e05037SAdrian Hunter host->quirks2 |= c->slot->chip->quirks2; 357c4e05037SAdrian Hunter host->mmc->caps |= c->slot->chip->caps; 358c4e05037SAdrian Hunter host->mmc->caps2 |= c->slot->chip->caps2; 359c4e05037SAdrian Hunter host->mmc->pm_caps |= c->slot->chip->pm_caps; 360c4e05037SAdrian Hunter } 361c4e05037SAdrian Hunter host->quirks |= c->slot->quirks; 362c4e05037SAdrian Hunter host->quirks2 |= c->slot->quirks2; 363c4e05037SAdrian Hunter host->mmc->caps |= c->slot->caps; 364c4e05037SAdrian Hunter host->mmc->caps2 |= c->slot->caps2; 365c4e05037SAdrian Hunter host->mmc->pm_caps |= c->slot->pm_caps; 366c4e05037SAdrian Hunter } 367c4e05037SAdrian Hunter 3680d3e3350SAdrian Hunter host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP; 3690d3e3350SAdrian Hunter 3704fd4409cSAdrian Hunter if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) { 3714fd4409cSAdrian Hunter bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL); 3724fd4409cSAdrian Hunter 37389168b48SLinus Walleij if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) { 3744fd4409cSAdrian Hunter dev_warn(dev, "failed to setup card detect gpio\n"); 3754fd4409cSAdrian Hunter c->use_runtime_pm = false; 3764fd4409cSAdrian Hunter } 3774fd4409cSAdrian Hunter } 3784fd4409cSAdrian Hunter 379c4e05037SAdrian Hunter err = sdhci_add_host(host); 380c4e05037SAdrian Hunter if (err) 381c4e05037SAdrian Hunter goto err_free; 382c4e05037SAdrian Hunter 383c4e05037SAdrian Hunter if (c->use_runtime_pm) { 3841d1ff458SAdrian Hunter pm_runtime_set_active(dev); 385c4e05037SAdrian Hunter pm_suspend_ignore_children(dev, 1); 386c4e05037SAdrian Hunter pm_runtime_set_autosuspend_delay(dev, 50); 387c4e05037SAdrian Hunter pm_runtime_use_autosuspend(dev); 388c4e05037SAdrian Hunter pm_runtime_enable(dev); 389c4e05037SAdrian Hunter } 390c4e05037SAdrian Hunter 391c4e05037SAdrian Hunter return 0; 392c4e05037SAdrian Hunter 393c4e05037SAdrian Hunter err_free: 394c4e05037SAdrian Hunter sdhci_free_host(c->host); 395c4e05037SAdrian Hunter return err; 396c4e05037SAdrian Hunter } 397c4e05037SAdrian Hunter 3984e608e4eSGreg Kroah-Hartman static int sdhci_acpi_remove(struct platform_device *pdev) 399c4e05037SAdrian Hunter { 400c4e05037SAdrian Hunter struct sdhci_acpi_host *c = platform_get_drvdata(pdev); 401c4e05037SAdrian Hunter struct device *dev = &pdev->dev; 402c4e05037SAdrian Hunter int dead; 403c4e05037SAdrian Hunter 404c4e05037SAdrian Hunter if (c->use_runtime_pm) { 405c4e05037SAdrian Hunter pm_runtime_get_sync(dev); 406c4e05037SAdrian Hunter pm_runtime_disable(dev); 407c4e05037SAdrian Hunter pm_runtime_put_noidle(dev); 408c4e05037SAdrian Hunter } 409c4e05037SAdrian Hunter 410578b36b6SGao, Yunpeng if (c->slot && c->slot->remove_slot) 411578b36b6SGao, Yunpeng c->slot->remove_slot(pdev); 412578b36b6SGao, Yunpeng 413c4e05037SAdrian Hunter dead = (sdhci_readl(c->host, SDHCI_INT_STATUS) == ~0); 414c4e05037SAdrian Hunter sdhci_remove_host(c->host, dead); 415c4e05037SAdrian Hunter sdhci_free_host(c->host); 416c4e05037SAdrian Hunter 417c4e05037SAdrian Hunter return 0; 418c4e05037SAdrian Hunter } 419c4e05037SAdrian Hunter 420c4e05037SAdrian Hunter #ifdef CONFIG_PM_SLEEP 421c4e05037SAdrian Hunter 422c4e05037SAdrian Hunter static int sdhci_acpi_suspend(struct device *dev) 423c4e05037SAdrian Hunter { 424c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 425c4e05037SAdrian Hunter 426c4e05037SAdrian Hunter return sdhci_suspend_host(c->host); 427c4e05037SAdrian Hunter } 428c4e05037SAdrian Hunter 429c4e05037SAdrian Hunter static int sdhci_acpi_resume(struct device *dev) 430c4e05037SAdrian Hunter { 431c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 432c4e05037SAdrian Hunter 433c4e05037SAdrian Hunter return sdhci_resume_host(c->host); 434c4e05037SAdrian Hunter } 435c4e05037SAdrian Hunter 436c4e05037SAdrian Hunter #else 437c4e05037SAdrian Hunter 438c4e05037SAdrian Hunter #define sdhci_acpi_suspend NULL 439c4e05037SAdrian Hunter #define sdhci_acpi_resume NULL 440c4e05037SAdrian Hunter 441c4e05037SAdrian Hunter #endif 442c4e05037SAdrian Hunter 443162d6f98SRafael J. Wysocki #ifdef CONFIG_PM 444c4e05037SAdrian Hunter 445c4e05037SAdrian Hunter static int sdhci_acpi_runtime_suspend(struct device *dev) 446c4e05037SAdrian Hunter { 447c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 448c4e05037SAdrian Hunter 449c4e05037SAdrian Hunter return sdhci_runtime_suspend_host(c->host); 450c4e05037SAdrian Hunter } 451c4e05037SAdrian Hunter 452c4e05037SAdrian Hunter static int sdhci_acpi_runtime_resume(struct device *dev) 453c4e05037SAdrian Hunter { 454c4e05037SAdrian Hunter struct sdhci_acpi_host *c = dev_get_drvdata(dev); 455c4e05037SAdrian Hunter 456c4e05037SAdrian Hunter return sdhci_runtime_resume_host(c->host); 457c4e05037SAdrian Hunter } 458c4e05037SAdrian Hunter 459c4e05037SAdrian Hunter #endif 460c4e05037SAdrian Hunter 461c4e05037SAdrian Hunter static const struct dev_pm_ops sdhci_acpi_pm_ops = { 462c4e05037SAdrian Hunter .suspend = sdhci_acpi_suspend, 463c4e05037SAdrian Hunter .resume = sdhci_acpi_resume, 4641d75f74bSPeter Griffin SET_RUNTIME_PM_OPS(sdhci_acpi_runtime_suspend, 4659b449e99SUlf Hansson sdhci_acpi_runtime_resume, NULL) 466c4e05037SAdrian Hunter }; 467c4e05037SAdrian Hunter 468c4e05037SAdrian Hunter static struct platform_driver sdhci_acpi_driver = { 469c4e05037SAdrian Hunter .driver = { 470c4e05037SAdrian Hunter .name = "sdhci-acpi", 471c4e05037SAdrian Hunter .acpi_match_table = sdhci_acpi_ids, 472c4e05037SAdrian Hunter .pm = &sdhci_acpi_pm_ops, 473c4e05037SAdrian Hunter }, 474c4e05037SAdrian Hunter .probe = sdhci_acpi_probe, 4754e608e4eSGreg Kroah-Hartman .remove = sdhci_acpi_remove, 476c4e05037SAdrian Hunter }; 477c4e05037SAdrian Hunter 478c4e05037SAdrian Hunter module_platform_driver(sdhci_acpi_driver); 479c4e05037SAdrian Hunter 480c4e05037SAdrian Hunter MODULE_DESCRIPTION("Secure Digital Host Controller Interface ACPI driver"); 481c4e05037SAdrian Hunter MODULE_AUTHOR("Adrian Hunter"); 482c4e05037SAdrian Hunter MODULE_LICENSE("GPL v2"); 483