diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-06-13 21:36:06 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2022-06-23 21:53:55 +0300 |
| commit | a22f18bddd824e96db839ccda75ff7e035e938ca (patch) | |
| tree | 950ff2e03c606c8b6c442cfa99c344d494b2e59e /drivers/mmc | |
| parent | 9089d1a41aab0298aaed04f24572035db351db7b (diff) | |
| download | linux-a22f18bddd824e96db839ccda75ff7e035e938ca.tar.xz | |
ACPI / MMC: PM: Unify fixing up device power
Introduce acpi_device_fix_up_power_extended() for fixing up power of
a device having an ACPI companion in a manner that takes the device's
children into account and make the MMC code use it in two places
instead of walking the list of the device ACPI companion's children
directly.
This will help to eliminate the children list head from struct
acpi_device as it is redundant and it is used in questionable ways
in some places (in particular, locking is needed for walking the
list pointed to it safely, but it is often missing).
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-acpi.c | 7 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci-pci-core.c | 11 |
2 files changed, 5 insertions, 13 deletions
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index c0350e9c03f3..4cca4c90769b 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -775,8 +775,8 @@ static int sdhci_acpi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; const struct sdhci_acpi_slot *slot; - struct acpi_device *device, *child; const struct dmi_system_id *id; + struct acpi_device *device; struct sdhci_acpi_host *c; struct sdhci_host *host; struct resource *iomem; @@ -796,10 +796,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev) slot = sdhci_acpi_get_slot(device); /* Power on the SDHCI controller and its children */ - 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); + acpi_device_fix_up_power_extended(device); if (sdhci_acpi_byt_defer(dev)) return -EPROBE_DEFER; diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c index ed53276f6ad9..622b7de96c7f 100644 --- a/drivers/mmc/host/sdhci-pci-core.c +++ b/drivers/mmc/host/sdhci-pci-core.c @@ -1240,16 +1240,11 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = { #ifdef CONFIG_ACPI static void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) { - struct acpi_device *device, *child; + struct acpi_device *device; 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); + if (device) + acpi_device_fix_up_power_extended(device); } #else static inline void intel_mrfld_mmc_fix_up_power_slot(struct sdhci_pci_slot *slot) {} |