lkml.org 
[lkml]   [2012]   [May]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [PATCH v4 0/13] SATA ZPODD support
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@lxorguk.ukuu.org.uk> 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@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>



\
 
 \ /
  Last update: 2012-05-30 08:21    [W:0.123 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site