[PATCH] ata: Disabling the async PM for JMicron chips

From: Chuansheng Liu
Date: Tue Sep 23 2014 - 01:53:56 EST


Be similar with commit (ata: Disabling the async PM for JMicron chip 363/361),
Barto found the similar issue for JMicron chip 368, that 363/368 has no
parent-children relationship, but they have the power dependency.

So here we can exclude the JMicron chips out of pm_async method directly,
to avoid further similar issues.

Details in:
https://bugzilla.kernel.org/show_bug.cgi?id=84861

Reported-and-tested-by: Barto <mister.freeman@xxxxxxxxxxx>
Signed-off-by: Chuansheng Liu <chuansheng.liu@xxxxxxxxx>
---
drivers/ata/ahci.c | 6 +++---
drivers/ata/pata_jmicron.c | 6 +++---
2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index a0cc0ed..c096d49 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -1345,10 +1345,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
* follow the sequence one by one, otherwise one of them can not be
* powered on successfully, so here we disable the async suspend
* method for these chips.
+ * Jmicron chip 368 has been found has the similar issue, here we can
+ * exclude the Jmicron family directly to avoid other similar issues.
*/
- if (pdev->vendor == PCI_VENDOR_ID_JMICRON &&
- (pdev->device == PCI_DEVICE_ID_JMICRON_JMB363 ||
- pdev->device == PCI_DEVICE_ID_JMICRON_JMB361))
+ if (pdev->vendor == PCI_VENDOR_ID_JMICRON)
device_disable_async_suspend(&pdev->dev);

/* acquire resources */
diff --git a/drivers/ata/pata_jmicron.c b/drivers/ata/pata_jmicron.c
index 47e418b..48c993b 100644
--- a/drivers/ata/pata_jmicron.c
+++ b/drivers/ata/pata_jmicron.c
@@ -149,10 +149,10 @@ static int jmicron_init_one (struct pci_dev *pdev, const struct pci_device_id *i
* follow the sequence one by one, otherwise one of them can not be
* powered on successfully, so here we disable the async suspend
* method for these chips.
+ * Jmicron chip 368 has been found has the similar issue, here we can
+ * exclude the Jmicron family directly to avoid other similar issues.
*/
- if (pdev->vendor == PCI_VENDOR_ID_JMICRON &&
- (pdev->device == PCI_DEVICE_ID_JMICRON_JMB363 ||
- pdev->device == PCI_DEVICE_ID_JMICRON_JMB361))
+ if (pdev->vendor == PCI_VENDOR_ID_JMICRON)
device_disable_async_suspend(&pdev->dev);

return ata_pci_bmdma_init_one(pdev, ppi, &jmicron_sht, NULL, 0);
--
1.7.9.5

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