On Friday, November 23, 2012 12:13:13 PM Adrian Hunter wrote: > On 23/11/12 11:34, Mika Westerberg wrote: > > On Thu, Nov 22, 2012 at 10:24:33PM +0100, Rafael J. Wysocki wrote: > >> On Thursday, November 22, 2012 04:46:10 PM Adrian Hunter wrote: > >>> On 22/11/12 15:55, Chris Ball wrote: > >>>> Hi, > >>>> > >>>> On Thu, Nov 22 2012, Adrian Hunter wrote: > >>>>> Here is SDHCI ACPI driver. It is dependent on new ACPI Platform support > >>>>> so I suggest Rafael takes the patches with Chris' Ack. > >>>>> > >>>>> Please note that I would prefer this to be queued for 3.8 > >>>> > >>>> Looks fine: > >>>> > >>>> Acked-by: Chris Ball <c...@laptop.org> > >>> > >>> Thank you! > >>> > >>>> > >>>> I have some dumb questions, though -- what kind of platforms ship with > >>>> these devices? Do they ever have the controller on PCI too, and what > >>>> happens with sdhci-pci vs. sdhci-acpi in that case? > >>> > >>> Since the arrival of ACPI5, platform devices can be configured using ACPI > >>> tables. PCI can also be used, but the firmware ensures that the same > >>> device is not enumerated via both ACPI and PCI. > >>> > >>> Rafael can you take these patches? > >> > >> Well, I'd prefer pnpacpi/core.c to actually use acpi_platform_device_ids[] > >> directly in addition to excluded_id_list[], so that duplicate entries don't > >> have to be added to the both of them. > > > > How about having pnpacpi to check if the ACPI device is already bound to a > > physical device and skip the device creation? Then we don't need to expose > > the acpi_platform_device_ids[] list, and this is what the ->find_device() > > code already does so why create the device in the first place? > > Yes, I was going to suggest that too. AFAICS pnpacpi has no concept of > multiple physical nodes. Any objections?
Not from me. Thanks, Rafael > > diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c > > index 5b17cc8..4dc2e64 100644 > > --- a/drivers/pnp/pnpacpi/core.c > > +++ b/drivers/pnp/pnpacpi/core.c > > @@ -243,6 +243,10 @@ static int __init pnpacpi_add_device(struct > > acpi_device *device) > > char *pnpid; > > struct acpi_hardware_id *id; > > > > + /* Skip devices that are already bound */ > > + if (device->physical_node_count) > > + return 0; > > + > > /* > > * If a PnPacpi device is not present , the device > > * driver should not be loaded. > > > > > > -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
