On Tue, May 29, 2012 at 08:32:49PM +0800, Lin Ming wrote: > On Mon, May 28, 2012 at 5:54 PM, Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote: > >> Have you fixed the fact that Matthews patches broke things like pata_acpi > >> last time ? Until that is fixed properly I don't see that these patches > >> can make any progress. > > > > https://lkml.org/lkml/2012/2/24/2 > > Aaron has a fix. > We'll do more test. Here is the patch, apply on top of the ZPODD patch set. Hi Fuzhou, Can you please give it a test? Thanks. I tested on my system with a ATI IDE controller and it could work with pata_acpi module. diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 6de8f32..c53266a 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -59,7 +59,18 @@ acpi_handle ata_ap_acpi_handle(struct ata_port *ap) { if (ap->flags & ATA_FLAG_ACPI_SATA) return NULL; - return DEVICE_ACPI_HANDLE(&ap->scsi_host->shost_gendev); + + /* + * If acpi bind operation has already happened, we can get the handle + * for the port by checking the corresponding scsi_host device's + * firmware node, otherwise we will need to find out the handle from + * its parent's acpi node. + */ + if (ap->scsi_host) + return DEVICE_ACPI_HANDLE(&ap->scsi_host->shost_gendev); + else + return acpi_get_child(DEVICE_ACPI_HANDLE(ap->host->dev), + ap->port_no); } EXPORT_SYMBOL(ata_ap_acpi_handle); -Aaron > > Thanks for the info. > Lin Ming > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
