diff options
Diffstat (limited to 'drivers/mmc/core')
-rw-r--r-- | drivers/mmc/core/core.c | 18 | ||||
-rw-r--r-- | drivers/mmc/core/mmc.c | 5 | ||||
-rw-r--r-- | drivers/mmc/core/sdio.c | 4 | ||||
-rw-r--r-- | drivers/mmc/core/sdio_bus.c | 23 |
4 files changed, 44 insertions, 6 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 9290bb51a06a..c40396f23202 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -2289,6 +2289,19 @@ int _mmc_detect_card_removed(struct mmc_host *host) return 1; ret = host->bus_ops->alive(host); + + /* + * Card detect status and alive check may be out of sync if card is + * removed slowly, when card detect switch changes while card/slot + * pads are still contacted in hardware (refer to "SD Card Mechanical + * Addendum, Appendix C: Card Detection Switch"). So reschedule a + * detect work 200ms later for this case. + */ + if (!ret && host->ops->get_cd && !host->ops->get_cd(host)) { + mmc_detect_change(host, msecs_to_jiffies(200)); + pr_debug("%s: card removed too slowly\n", mmc_hostname(host)); + } + if (ret) { mmc_card_set_removed(host->card); pr_debug("%s: card remove detected\n", mmc_hostname(host)); @@ -2403,7 +2416,10 @@ void mmc_start_host(struct mmc_host *host) { host->f_init = max(freqs[0], host->f_min); host->rescan_disable = 0; - mmc_power_up(host); + if (host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP) + mmc_power_off(host); + else + mmc_power_up(host); mmc_detect_change(host, 0); } diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index c8f3d6e0684e..0cbd1effe960 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -96,6 +96,7 @@ static int mmc_decode_cid(struct mmc_card *card) card->cid.prod_name[3] = UNSTUFF_BITS(resp, 72, 8); card->cid.prod_name[4] = UNSTUFF_BITS(resp, 64, 8); card->cid.prod_name[5] = UNSTUFF_BITS(resp, 56, 8); + card->cid.prv = UNSTUFF_BITS(resp, 48, 8); card->cid.serial = UNSTUFF_BITS(resp, 16, 32); card->cid.month = UNSTUFF_BITS(resp, 12, 4); card->cid.year = UNSTUFF_BITS(resp, 8, 4) + 1997; @@ -368,13 +369,13 @@ static int mmc_read_ext_csd(struct mmc_card *card, u8 *ext_csd) ext_csd[EXT_CSD_SEC_FEATURE_SUPPORT]; card->ext_csd.raw_trim_mult = ext_csd[EXT_CSD_TRIM_MULT]; + card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT]; if (card->ext_csd.rev >= 4) { /* * Enhanced area feature support -- check whether the eMMC * card has the Enhanced area enabled. If so, export enhanced * area offset and size to user by adding sysfs interface. */ - card->ext_csd.raw_partition_support = ext_csd[EXT_CSD_PARTITION_SUPPORT]; if ((ext_csd[EXT_CSD_PARTITION_SUPPORT] & 0x2) && (ext_csd[EXT_CSD_PARTITION_ATTRIBUTE] & 0x1)) { hc_erase_grp_sz = @@ -627,6 +628,7 @@ MMC_DEV_ATTR(hwrev, "0x%x\n", card->cid.hwrev); MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid); MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name); MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid); +MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv); MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial); MMC_DEV_ATTR(enhanced_area_offset, "%llu\n", card->ext_csd.enhanced_area_offset); @@ -645,6 +647,7 @@ static struct attribute *mmc_std_attrs[] = { &dev_attr_manfid.attr, &dev_attr_name.attr, &dev_attr_oemid.attr, + &dev_attr_prv.attr, &dev_attr_serial.attr, &dev_attr_enhanced_area_offset.attr, &dev_attr_enhanced_area_size.attr, diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index aa0719a4dfd1..6889a821c1da 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -861,8 +861,10 @@ static void mmc_sdio_detect(struct mmc_host *host) /* Make sure card is powered before detecting it */ if (host->caps & MMC_CAP_POWER_OFF_CARD) { err = pm_runtime_get_sync(&host->card->dev); - if (err < 0) + if (err < 0) { + pm_runtime_put_noidle(&host->card->dev); goto out; + } } mmc_claim_host(host); diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index 5e57048e2c1d..546c67c2bbbf 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -16,6 +16,7 @@ #include <linux/export.h> #include <linux/slab.h> #include <linux/pm_runtime.h> +#include <linux/acpi.h> #include <linux/mmc/card.h> #include <linux/mmc/host.h> @@ -137,7 +138,7 @@ static int sdio_bus_probe(struct device *dev) if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD) { ret = pm_runtime_get_sync(dev); if (ret < 0) - goto out; + goto disable_runtimepm; } /* Set the default block size so the driver is sure it's something @@ -157,7 +158,6 @@ static int sdio_bus_probe(struct device *dev) disable_runtimepm: if (func->card->host->caps & MMC_CAP_POWER_OFF_CARD) pm_runtime_put_noidle(dev); -out: return ret; } @@ -299,6 +299,19 @@ struct sdio_func *sdio_alloc_func(struct mmc_card *card) return func; } +#ifdef CONFIG_ACPI +static void sdio_acpi_set_handle(struct sdio_func *func) +{ + struct mmc_host *host = func->card->host; + u64 addr = (host->slotno << 16) | func->num; + + ACPI_HANDLE_SET(&func->dev, + acpi_get_child(ACPI_HANDLE(host->parent), addr)); +} +#else +static inline void sdio_acpi_set_handle(struct sdio_func *func) {} +#endif + /* * Register a new SDIO function with the driver model. */ @@ -308,9 +321,12 @@ int sdio_add_func(struct sdio_func *func) dev_set_name(&func->dev, "%s:%d", mmc_card_id(func->card), func->num); + sdio_acpi_set_handle(func); ret = device_add(&func->dev); - if (ret == 0) + if (ret == 0) { sdio_func_set_present(func); + acpi_dev_pm_attach(&func->dev, false); + } return ret; } @@ -326,6 +342,7 @@ void sdio_remove_func(struct sdio_func *func) if (!sdio_func_present(func)) return; + acpi_dev_pm_detach(&func->dev, false); device_del(&func->dev); put_device(&func->dev); } |