sdhci: pci: Fix up power if device has ACPI companion

Fix up a power state in case PCI device has an ACPI companion.

Do it only for Intel Merrifield for now.

This is almost copy'n'paste of part of sdhci_acpi_probe() and might be
split out to a helper function in the future.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index e1721ac..2c853cf 100644 (file)
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -730,6 +730,24 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
 #define INTEL_MRFLD_SD         2
 #define INTEL_MRFLD_SDIO       3
 
+#ifdef CONFIG_ACPI
+static void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot)
+{
+       struct acpi_device *device, *child;
+
+       device = ACPI_COMPANION(&slot->chip->pdev->dev);
+       if (!device)
+               return;
+
+       acpi_device_fix_up_power(device);
+       list_for_each_entry(child, &device->children, node)
+               if (child->status.present && child->status.enabled)
+                       acpi_device_fix_up_power(child);
+}
+#else
+static inline void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) {}
+#endif
+
 static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
 {
        unsigned int func = PCI_FUNC(slot->chip->pdev->devfn);
@@ -751,6 +769,8 @@ static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
        default:
                return -ENODEV;
        }
+
+       intel_mrfld_mmc_fix_up_power_slot(slot);
        return 0;
 }