diff options
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 17 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 26 |
2 files changed, 31 insertions, 12 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 5c3a1767770a..dbf054315fe2 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -501,6 +501,7 @@ static int sdhci_pci_suspend (struct pci_dev *pdev, pm_message_t state) { struct sdhci_pci_chip *chip; struct sdhci_pci_slot *slot; + mmc_pm_flag_t pm_flags = 0; int i, ret; chip = pci_get_drvdata(pdev); @@ -519,6 +520,8 @@ static int sdhci_pci_suspend (struct pci_dev *pdev, pm_message_t state) sdhci_resume_host(chip->slots[i]->host); return ret; } + + pm_flags |= slot->host->mmc->pm_flags; } if (chip->fixes && chip->fixes->suspend) { @@ -531,9 +534,15 @@ static int sdhci_pci_suspend (struct pci_dev *pdev, pm_message_t state) } pci_save_state(pdev); - pci_enable_wake(pdev, pci_choose_state(pdev, state), 0); - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); + if (pm_flags & MMC_PM_KEEP_POWER) { + if (pm_flags & MMC_PM_WAKE_SDIO_IRQ) + pci_enable_wake(pdev, PCI_D3hot, 1); + pci_set_power_state(pdev, PCI_D3hot); + } else { + pci_enable_wake(pdev, pci_choose_state(pdev, state), 0); + pci_disable_device(pdev); + pci_set_power_state(pdev, pci_choose_state(pdev, state)); + } return 0; } @@ -653,6 +662,8 @@ static struct sdhci_pci_slot * __devinit sdhci_pci_probe_slot( goto unmap; } + host->mmc->pm_caps = MMC_PM_KEEP_POWER | MMC_PM_WAKE_SDIO_IRQ; + ret = sdhci_add_host(host); if (ret) goto remove; diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 6c866b43b03c..d6ab62d539fb 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -174,20 +174,31 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask) sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, ier); } -static void sdhci_init(struct sdhci_host *host) +static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios); + +static void sdhci_init(struct sdhci_host *host, int soft) { - sdhci_reset(host, SDHCI_RESET_ALL); + if (soft) + sdhci_reset(host, SDHCI_RESET_CMD|SDHCI_RESET_DATA); + else + sdhci_reset(host, SDHCI_RESET_ALL); sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_INDEX | SDHCI_INT_END_BIT | SDHCI_INT_CRC | SDHCI_INT_TIMEOUT | SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE); + + if (soft) { + /* force clock reconfiguration */ + host->clock = 0; + sdhci_set_ios(host->mmc, &host->mmc->ios); + } } static void sdhci_reinit(struct sdhci_host *host) { - sdhci_init(host); + sdhci_init(host, 0); sdhci_enable_card_detection(host); } @@ -1600,16 +1611,13 @@ int sdhci_resume_host(struct sdhci_host *host) if (ret) return ret; - sdhci_init(host); + sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER)); mmiowb(); ret = mmc_resume_host(host->mmc); - if (ret) - return ret; - sdhci_enable_card_detection(host); - return 0; + return ret; } EXPORT_SYMBOL_GPL(sdhci_resume_host); @@ -1864,7 +1872,7 @@ int sdhci_add_host(struct sdhci_host *host) if (ret) goto untasklet; - sdhci_init(host); + sdhci_init(host, 0); #ifdef CONFIG_MMC_DEBUG sdhci_dumpregs(host); |