diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-pci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index d7d6bc8968d..33593e7a645 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -59,6 +59,7 @@ struct sdhci_pci_fixes { unsigned int quirks; unsigned int quirks2; bool allow_runtime_pm; + bool own_cd_for_runtime_pm; int (*probe) (struct sdhci_pci_chip *); @@ -290,6 +291,7 @@ 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, + .own_cd_for_runtime_pm = true, }; static const struct sdhci_pci_fixes sdhci_intel_mfd_sdio = { @@ -354,6 +356,7 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = { static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON, .allow_runtime_pm = true, + .own_cd_for_runtime_pm = true, }; /* O2Micro extra registers */ @@ -1381,6 +1384,14 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot( sdhci_pci_add_own_cd(slot); + /* + * Check if the chip needs a separate GPIO for card detect to wake up + * from runtime suspend. If it is not there, don't allow runtime PM. + * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure. + */ + if (chip->fixes->own_cd_for_runtime_pm && !gpio_is_valid(slot->cd_gpio)) + chip->allow_runtime_pm = false; + return slot; remove: |