提交 0e39220e 编写于 作者: A Andy Shevchenko 提交者: Ulf Hansson

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: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>
上级 cd25c7be
......@@ -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;
}
......
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