mmc: sdhci-acpi: enable runtime-pm for device HID INT33C6

sdhci-acpi supports ACPI devices which have compatibility ID
PNP0D40, however it is not possible to know if those devices
will all work correctly with runtime-pm, so that must be configured
per hardware ID.

For INT33C6, several related quirks, capabilities and flags are set:

	MMC_CAP_NONREMOVABLE
		The SDIO card will never be removable

	SDHCI_ACPI_RUNTIME_PM
		Enable runtime-pm of the host controller

	MMC_CAP_POWER_OFF_CARD
		Enable runtime-pm of the SDIO card

	MMC_PM_KEEP_POWER
		SDIO card has the capability to remain powered up
		during system suspend

	SDHCI_QUIRK2_HOST_OFF_CARD_ON
		Always do a full reset during system resume
		because the card may be already initialized having
		not been powered off.

Wake-ups from the INT33C6 host controller are not supported, so the
following capability must *not* be set:

	MMC_PM_WAKE_SDIO_IRQ
		Enable wake on card interrupt

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 6ac361744d3673e24bd6aed12dcca47b2ee02fd1..12b0a78497f68a3563785ebb1e558f96530fa132 100644 (file)
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -87,7 +87,15 @@ static const struct sdhci_ops sdhci_acpi_ops_dflt = {
        .enable_dma = sdhci_acpi_enable_dma,
 };
 
+static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
+       .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
+       .caps    = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD,
+       .flags   = SDHCI_ACPI_RUNTIME_PM,
+       .pm_caps = MMC_PM_KEEP_POWER,
+};
+
 static const struct acpi_device_id sdhci_acpi_ids[] = {
+       { "INT33C6", (kernel_ulong_t)&sdhci_acpi_slot_int_sdio },
        { "PNP0D40" },
        { },
 };