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

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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>
This commit is contained in:
Andy Shevchenko 2017-07-24 18:07:50 +03:00 committed by Ulf Hansson
parent cd25c7be3c
commit 0e39220ed6
1 changed files with 20 additions and 0 deletions
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20
drivers/mmc/host/sdhci-pci-core.c
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@ -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;
}