diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2011-10-17 10:52:44 +0300 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-10-26 16:32:25 -0400 |
| commit | c43fd7746698a10aa6435d62ec28f977dd6246cc (patch) | |
| tree | 4fc569113696afc238429dea6a13ae8f8ab1cda7 /drivers/mmc | |
| parent | e840ce134ba5c617af97a2adbedefb0a9c0bb5a7 (diff) | |
| download | lwn-c43fd7746698a10aa6435d62ec28f977dd6246cc.tar.gz lwn-c43fd7746698a10aa6435d62ec28f977dd6246cc.zip | |
mmc: sdhci-pci: add flag for devices that can support runtime PM
Only allow runtime PM for devices that specifically indicate
that they support it.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index f49b184308c0..d833d9c2f7e3 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -47,6 +47,7 @@ struct sdhci_pci_slot; struct sdhci_pci_fixes { unsigned int quirks; + bool allow_runtime_pm; int (*probe) (struct sdhci_pci_chip *); @@ -72,6 +73,7 @@ struct sdhci_pci_chip { struct pci_dev *pdev; unsigned int quirks; + bool allow_runtime_pm; const struct sdhci_pci_fixes *fixes; int num_slots; /* Slots on controller */ @@ -305,16 +307,19 @@ static const struct sdhci_pci_fixes sdhci_intel_mrst_hc1_hc2 = { static const struct sdhci_pci_fixes sdhci_intel_mfd_sd = { .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .allow_runtime_pm = true, .probe_slot = mfd_sd_probe_slot, .remove_slot = mfd_sd_remove_slot, }; static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = { .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .allow_runtime_pm = true, }; static const struct sdhci_pci_fixes sdhci_intel_mfd_emmc = { .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC, + .allow_runtime_pm = true, .probe_slot = mfd_emmc_probe_slot, .remove_slot = mfd_emmc_remove_slot, }; @@ -1355,8 +1360,10 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, chip->pdev = pdev; chip->fixes = (const struct sdhci_pci_fixes *)ent->driver_data; - if (chip->fixes) + if (chip->fixes) { chip->quirks = chip->fixes->quirks; + chip->allow_runtime_pm = chip->fixes->allow_runtime_pm; + } chip->num_slots = slots; pci_set_drvdata(pdev, chip); @@ -1381,7 +1388,8 @@ static int __devinit sdhci_pci_probe(struct pci_dev *pdev, chip->slots[i] = slot; } - sdhci_pci_runtime_pm_allow(&pdev->dev); + if (chip->allow_runtime_pm) + sdhci_pci_runtime_pm_allow(&pdev->dev); return 0; @@ -1399,11 +1407,12 @@ static void __devexit sdhci_pci_remove(struct pci_dev *pdev) int i; struct sdhci_pci_chip *chip; - sdhci_pci_runtime_pm_forbid(&pdev->dev); - chip = pci_get_drvdata(pdev); if (chip) { + if (chip->allow_runtime_pm) + sdhci_pci_runtime_pm_forbid(&pdev->dev); + for (i = 0; i < chip->num_slots; i++) sdhci_pci_remove_slot(chip->slots[i]); |