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Subject[PATCH] ricoh_mmc: Use suspend/resume_noirq (v2)
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If ricoh_mmc suspends before sdhci_pci, it will pull the card
out from under the controller, which could leave the system in
a very confused state.

Using suspend/resume_noirq ensures that sdhci_pci suspends first
and resumes second.

Signed-off-by: Philip Langdale <philipl@overt.org>
Acked-by: Pierre Ossman <drzeus@drzeus.cx>
---
ricoh_mmc.c | 20 ++++++++++++++++----
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/ricoh_mmc.c b/drivers/mmc/host/ricoh_mmc.c
index 1837719..b4958a7 100644
--- a/drivers/mmc/host/ricoh_mmc.c
+++ b/drivers/mmc/host/ricoh_mmc.c
@@ -194,10 +194,14 @@ static void __devexit ricoh_mmc_remove(struct pci_dev *pdev)
pci_set_drvdata(pdev, NULL);
}

-static int ricoh_mmc_suspend(struct pci_dev *pdev, pm_message_t state)
+static int ricoh_mmc_suspend_noirq(struct device *dev)
{
+ struct pci_dev *pdev = NULL;
struct pci_dev *fw_dev = NULL;

+ pdev = to_pci_dev(dev);
+ BUG_ON(pdev == NULL);
+
fw_dev = pci_get_drvdata(pdev);
BUG_ON(fw_dev == NULL);

@@ -208,10 +212,14 @@ static int ricoh_mmc_suspend(struct pci_dev *pdev, pm_message_t state)
return 0;
}

-static int ricoh_mmc_resume(struct pci_dev *pdev)
+static int ricoh_mmc_resume_noirq(struct device *dev)
{
+ struct pci_dev *pdev = NULL;
struct pci_dev *fw_dev = NULL;

+ pdev = to_pci_dev(dev);
+ BUG_ON(pdev == NULL);
+
fw_dev = pci_get_drvdata(pdev);
BUG_ON(fw_dev == NULL);

@@ -222,13 +230,17 @@ static int ricoh_mmc_resume(struct pci_dev *pdev)
return 0;
}

+static struct dev_pm_ops ricoh_mmc_pm_opts = {
+ .suspend_noirq = ricoh_mmc_suspend_noirq,
+ .resume_noirq = ricoh_mmc_resume_noirq,
+};
+
static struct pci_driver ricoh_mmc_driver = {
.name = DRIVER_NAME,
.id_table = pci_ids,
.probe = ricoh_mmc_probe,
.remove = __devexit_p(ricoh_mmc_remove),
- .suspend = ricoh_mmc_suspend,
- .resume = ricoh_mmc_resume,
+ .driver.pm = &ricoh_mmc_pm_opts,
};

/*****************************************************************************\


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