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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-21 12:44:37 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-04-21 12:44:37 -0700 |
commit | 126a3483d6e3c3370a2c7976073a0f4a5c942318 (patch) | |
tree | 1c176fe1ed331b93463440c50c249a9eb7ef2496 | |
parent | 8898159650093e9eee8829e30a9139b4273a0ac4 (diff) | |
parent | 7c5709194096beea1ab6e6db46768d70a068efb0 (diff) | |
download | op-kernel-dev-126a3483d6e3c3370a2c7976073a0f4a5c942318.zip op-kernel-dev-126a3483d6e3c3370a2c7976073a0f4a5c942318.tar.gz |
Merge tag 'mmc-fixes-for-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Pull MMC fixes from Chris Ball:
- Build fix for omap_hsmmc with OF against 3.4-rc1.
- Fix CONFIG_MMC_UNSAFE_RESUME semantics regression against 3.3, which
broke hotplug card detection when UNSAFE_RESUME is set.
- Fix a race condition in omap_hsmmc with runtime PM.
- Fix two libertas SDIO-powered-resume regressions.
- Small fixes for discard/sanitize, dw_mmc, cd-gpio and esdhc-imx.
* tag 'mmc-fixes-for-3.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: core: Do not pre-claim host in suspend
mmc: dw_mmc: prevent NULL dereference for dma_ops
mmc: unbreak sdhci-esdhc-imx on i.MX25
mmc: cd-gpio: Include header to pickup exported symbol prototypes
mmc: sdhci: refine non-removable card checking for card detection
mmc: dw_mmc: Fix switch from DMA to PIO
mmc: remove MMC bus legacy suspend/resume method
mmc: omap_hsmmc: Get rid of of_have_populated_dt() usage
mmc: omap_hsmmc: build fix for CONFIG_OF=y and CONFIG_MMC_OMAP_HS=m
mmc: fixes for eMMC v4.5 sanitize operation
mmc: fixes for eMMC v4.5 discard operation
-rw-r--r-- | drivers/mmc/card/block.c | 56 | ||||
-rw-r--r-- | drivers/mmc/card/queue.c | 2 | ||||
-rw-r--r-- | drivers/mmc/core/bus.c | 24 | ||||
-rw-r--r-- | drivers/mmc/core/cd-gpio.c | 1 | ||||
-rw-r--r-- | drivers/mmc/core/core.c | 64 | ||||
-rw-r--r-- | drivers/mmc/host/dw_mmc.c | 7 | ||||
-rw-r--r-- | drivers/mmc/host/omap_hsmmc.c | 6 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci-esdhc-imx.c | 3 | ||||
-rw-r--r-- | drivers/mmc/host/sdhci.c | 2 | ||||
-rw-r--r-- | include/linux/mmc/card.h | 2 |
10 files changed, 86 insertions, 81 deletions
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index b180965..dabec55 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -873,7 +873,7 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, { struct mmc_blk_data *md = mq->data; struct mmc_card *card = md->queue.card; - unsigned int from, nr, arg; + unsigned int from, nr, arg, trim_arg, erase_arg; int err = 0, type = MMC_BLK_SECDISCARD; if (!(mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card))) { @@ -881,20 +881,26 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, goto out; } + from = blk_rq_pos(req); + nr = blk_rq_sectors(req); + /* The sanitize operation is supported at v4.5 only */ if (mmc_can_sanitize(card)) { - err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_SANITIZE_START, 1, 0); - goto out; + erase_arg = MMC_ERASE_ARG; + trim_arg = MMC_TRIM_ARG; + } else { + erase_arg = MMC_SECURE_ERASE_ARG; + trim_arg = MMC_SECURE_TRIM1_ARG; } - from = blk_rq_pos(req); - nr = blk_rq_sectors(req); - - if (mmc_can_trim(card) && !mmc_erase_group_aligned(card, from, nr)) - arg = MMC_SECURE_TRIM1_ARG; - else - arg = MMC_SECURE_ERASE_ARG; + if (mmc_erase_group_aligned(card, from, nr)) + arg = erase_arg; + else if (mmc_can_trim(card)) + arg = trim_arg; + else { + err = -EINVAL; + goto out; + } retry: if (card->quirks & MMC_QUIRK_INAND_CMD38) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, @@ -904,25 +910,41 @@ retry: INAND_CMD38_ARG_SECERASE, 0); if (err) - goto out; + goto out_retry; } + err = mmc_erase(card, from, nr, arg); - if (!err && arg == MMC_SECURE_TRIM1_ARG) { + if (err == -EIO) + goto out_retry; + if (err) + goto out; + + if (arg == MMC_SECURE_TRIM1_ARG) { if (card->quirks & MMC_QUIRK_INAND_CMD38) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, INAND_CMD38_ARG_EXT_CSD, INAND_CMD38_ARG_SECTRIM2, 0); if (err) - goto out; + goto out_retry; } + err = mmc_erase(card, from, nr, MMC_SECURE_TRIM2_ARG); + if (err == -EIO) + goto out_retry; + if (err) + goto out; } -out: - if (err == -EIO && !mmc_blk_reset(md, card->host, type)) + + if (mmc_can_sanitize(card)) + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_SANITIZE_START, 1, 0); +out_retry: + if (err && !mmc_blk_reset(md, card->host, type)) goto retry; if (!err) mmc_blk_reset_success(md, type); +out: spin_lock_irq(&md->lock); __blk_end_request(req, err, blk_rq_bytes(req)); spin_unlock_irq(&md->lock); @@ -1802,7 +1824,7 @@ static void mmc_blk_remove(struct mmc_card *card) } #ifdef CONFIG_PM -static int mmc_blk_suspend(struct mmc_card *card, pm_message_t state) +static int mmc_blk_suspend(struct mmc_card *card) { struct mmc_blk_data *part_md; struct mmc_blk_data *md = mmc_get_drvdata(card); diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 2517547..996f8e3 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -139,7 +139,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); q->limits.max_discard_sectors = max_discard; - if (card->erased_byte == 0) + if (card->erased_byte == 0 && !mmc_can_discard(card)) q->limits.discard_zeroes_data = 1; q->limits.discard_granularity = card->pref_erase << 9; /* granularity must not be greater than max. discard */ diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 3f60606..c60cee9 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -122,14 +122,14 @@ static int mmc_bus_remove(struct device *dev) return 0; } -static int mmc_bus_suspend(struct device *dev, pm_message_t state) +static int mmc_bus_suspend(struct device *dev) { struct mmc_driver *drv = to_mmc_driver(dev->driver); struct mmc_card *card = mmc_dev_to_card(dev); int ret = 0; if (dev->driver && drv->suspend) - ret = drv->suspend(card, state); + ret = drv->suspend(card); return ret; } @@ -165,20 +165,14 @@ static int mmc_runtime_idle(struct device *dev) return pm_runtime_suspend(dev); } +#endif /* !CONFIG_PM_RUNTIME */ + static const struct dev_pm_ops mmc_bus_pm_ops = { - .runtime_suspend = mmc_runtime_suspend, - .runtime_resume = mmc_runtime_resume, - .runtime_idle = mmc_runtime_idle, + SET_RUNTIME_PM_OPS(mmc_runtime_suspend, mmc_runtime_resume, + mmc_runtime_idle) + SET_SYSTEM_SLEEP_PM_OPS(mmc_bus_suspend, mmc_bus_resume) }; -#define MMC_PM_OPS_PTR (&mmc_bus_pm_ops) - -#else /* !CONFIG_PM_RUNTIME */ - -#define MMC_PM_OPS_PTR NULL - -#endif /* !CONFIG_PM_RUNTIME */ - static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -186,9 +180,7 @@ static struct bus_type mmc_bus_type = { .uevent = mmc_bus_uevent, .probe = mmc_bus_probe, .remove = mmc_bus_remove, - .suspend = mmc_bus_suspend, - .resume = mmc_bus_resume, - .pm = MMC_PM_OPS_PTR, + .pm = &mmc_bus_pm_ops, }; int mmc_register_bus(void) diff --git a/drivers/mmc/core/cd-gpio.c b/drivers/mmc/core/cd-gpio.c index 29de31e..2c14be7 100644 --- a/drivers/mmc/core/cd-gpio.c +++ b/drivers/mmc/core/cd-gpio.c @@ -12,6 +12,7 @@ #include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/jiffies.h> +#include <linux/mmc/cd-gpio.h> #include <linux/mmc/host.h> #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 7474c47..ba821fe 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1409,7 +1409,10 @@ static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card, { unsigned int erase_timeout; - if (card->ext_csd.erase_group_def & 1) { + if (arg == MMC_DISCARD_ARG || + (arg == MMC_TRIM_ARG && card->ext_csd.rev >= 6)) { + erase_timeout = card->ext_csd.trim_timeout; + } else if (card->ext_csd.erase_group_def & 1) { /* High Capacity Erase Group Size uses HC timeouts */ if (arg == MMC_TRIM_ARG) erase_timeout = card->ext_csd.trim_timeout; @@ -1681,8 +1684,6 @@ int mmc_can_trim(struct mmc_card *card) { if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) return 1; - if (mmc_can_discard(card)) - return 1; return 0; } EXPORT_SYMBOL(mmc_can_trim); @@ -1701,6 +1702,8 @@ EXPORT_SYMBOL(mmc_can_discard); int mmc_can_sanitize(struct mmc_card *card) { + if (!mmc_can_trim(card) && !mmc_can_erase(card)) + return 0; if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_SANITIZE) return 1; return 0; @@ -2235,6 +2238,7 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable) mmc_card_is_removable(host)) return err; + mmc_claim_host(host); if (card && mmc_card_mmc(card) && (card->ext_csd.cache_size > 0)) { enable = !!enable; @@ -2252,6 +2256,7 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable) card->ext_csd.cache_ctrl = enable; } } + mmc_release_host(host); return err; } @@ -2269,49 +2274,32 @@ int mmc_suspend_host(struct mmc_host *host) cancel_delayed_work(&host->detect); mmc_flush_scheduled_work(); - if (mmc_try_claim_host(host)) { - err = mmc_cache_ctrl(host, 0); - mmc_release_host(host); - } else { - err = -EBUSY; - } + err = mmc_cache_ctrl(host, 0); if (err) goto out; mmc_bus_get(host); if (host->bus_ops && !host->bus_dead) { - /* - * A long response time is not acceptable for device drivers - * when doing suspend. Prevent mmc_claim_host in the suspend - * sequence, to potentially wait "forever" by trying to - * pre-claim the host. - */ - if (mmc_try_claim_host(host)) { - if (host->bus_ops->suspend) { - err = host->bus_ops->suspend(host); - } - mmc_release_host(host); + if (host->bus_ops->suspend) + err = host->bus_ops->suspend(host); - if (err == -ENOSYS || !host->bus_ops->resume) { - /* - * We simply "remove" the card in this case. - * It will be redetected on resume. (Calling - * bus_ops->remove() with a claimed host can - * deadlock.) - */ - if (host->bus_ops->remove) - host->bus_ops->remove(host); - mmc_claim_host(host); - mmc_detach_bus(host); - mmc_power_off(host); - mmc_release_host(host); - host->pm_flags = 0; - err = 0; - } - } else { - err = -EBUSY; + if (err == -ENOSYS || !host->bus_ops->resume) { + /* + * We simply "remove" the card in this case. + * It will be redetected on resume. (Calling + * bus_ops->remove() with a claimed host can + * deadlock.) + */ + if (host->bus_ops->remove) + host->bus_ops->remove(host); + mmc_claim_host(host); + mmc_detach_bus(host); + mmc_power_off(host); + mmc_release_host(host); + host->pm_flags = 0; + err = 0; } } mmc_bus_put(host); diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index bf3c9b4..ab3fc46 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -526,8 +526,10 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) return -ENODEV; sg_len = dw_mci_pre_dma_transfer(host, data, 0); - if (sg_len < 0) + if (sg_len < 0) { + host->dma_ops->stop(host); return sg_len; + } host->using_dma = 1; @@ -1879,7 +1881,8 @@ static void dw_mci_init_dma(struct dw_mci *host) if (!host->dma_ops) goto no_dma; - if (host->dma_ops->init) { + if (host->dma_ops->init && host->dma_ops->start && + host->dma_ops->stop && host->dma_ops->cleanup) { if (host->dma_ops->init(host)) { dev_err(&host->dev, "%s: Unable to initialize " "DMA Controller.\n", __func__); diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 5c2b1c1..56d4499 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -249,7 +249,7 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on, * the pbias cell programming support is still missing when * booting with Device tree */ - if (of_have_populated_dt() && !vdd) + if (dev->of_node && !vdd) return 0; if (mmc_slot(host).before_set_reg) @@ -1549,7 +1549,7 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) * can't be allowed when booting with device * tree. */ - (!of_have_populated_dt())) { + !host->dev->of_node) { /* * The mmc_select_voltage fn of the core does * not seem to set the power_mode to @@ -1741,7 +1741,7 @@ static const struct of_device_id omap_mmc_of_match[] = { .data = &omap4_reg_offset, }, {}, -} +}; MODULE_DEVICE_TABLE(of, omap_mmc_of_match); static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 6193a0d..8abdaf6 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -467,8 +467,7 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev) clk_prepare_enable(clk); pltfm_host->clk = clk; - if (!is_imx25_esdhc(imx_data)) - host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; + host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9aa77f3..ccefdeb 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -147,7 +147,7 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) u32 present, irqs; if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) || - !mmc_card_is_removable(host->mmc)) + (host->mmc->caps & MMC_CAP_NONREMOVABLE)) return; present = sdhci_readl(host, SDHCI_PRESENT_STATE) & diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 01beae7..629b823 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -481,7 +481,7 @@ struct mmc_driver { struct device_driver drv; int (*probe)(struct mmc_card *); void (*remove)(struct mmc_card *); - int (*suspend)(struct mmc_card *, pm_message_t); + int (*suspend)(struct mmc_card *); int (*resume)(struct mmc_card *); }; |