diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.c | 10 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-pci.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index f46b84ce4ec8..92e6e81b4de2 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -225,6 +225,7 @@ 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 = { @@ -289,6 +290,7 @@ 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, }; /* Define Host controllers for Intel Merrifield platform */ @@ -1371,6 +1373,14 @@ 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: diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h index 0347804eda80..6d718719659e 100644 --- a/drivers/mmc/host/sdhci-pci.h +++ b/drivers/mmc/host/sdhci-pci.h @@ -39,6 +39,7 @@ 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 *); |