diff options
| author | Nicolas Pitre <nico@fluxnic.net> | 2010-03-06 00:43:32 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-06 22:26:37 +0300 |
| commit | 2f4cbb3d834922ffa0309b6a08fa42dac87ef9d2 (patch) | |
| tree | 9c4b919b3851d3e0c066ba5c456bf0d2c150da4f /drivers/mmc/host/sdhci-pci.c | |
| parent | da68c4eb258cd9f3f0b8aeb7e46b8118bb6358b6 (diff) | |
| download | linux-2f4cbb3d834922ffa0309b6a08fa42dac87ef9d2.tar.xz | |
sdio: sdhci support for suspend mode PM features
Tested with an XO v1.5 from OLPC.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-pci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 17 |
1 files changed, 14 insertions, 3 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; |