On Tuesday, May 27, 2014 10:20:33 AM Lee Jones wrote: > > On 05/26/2014 01:03 PM, Rafael J. Wysocki wrote: > > > On Monday, May 26, 2014 12:03:43 PM Jingoo Han wrote: > > >> On Thursday, May 22, 2014 6:02 PM, Lee Jones wrote: > > >>> On Thursday, May 22, 2014 5:45 PM, Hans de Goede wrote: > > >>>> On Thursday, May 22, 2014 8:31 AM, Rafael J. Wysocki wrote: > > >>>>> On Wednesday, May 21, 2014 10:40 PM, Hans de Goede wrote: > > >>>>>> Some firmware drivers, ie acpi-video want to get themselves out of the > > >>>>>> way (in some cases) when their also is a raw backlight device available. > > >>>>>> > > >>>>>> Due to module loading ordering being unknown, acpi-video cannot be certain > > >>>>>> that the backlight_device_registered(BACKLIGHT_RAW) it does for this is > > >>>>>> the final verdict wrt there being a BACKLIGHT_RAW device. > > >>>>>> > > >>>>>> By adding notification acpi-video can listen for backlight devices showing > > >>>>>> up after it has loaded, and unregister its backlight device if desired. > > >>>>>> > > >>>>>> Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx> > > >>>>> > > >>>>> Backlight maintainer's ACK is requisite here. > > >>>> > > >>>> Agreed, which is why I send this set to all 3 the backlight maintainers > > >>>> directly on both postings. > > >>>> > > >>>> What may be helpful for them is to hear from you if you're ok with the > > >>>> acpi-video bits which are actually going to use this, since those will > > >>>> be the only user of the new backlight api (for now). > > >>> > > >>> I'm happy to apply any Backlight patches which have either Bryan or > > >>> Jingoo's Ack, as they are the reviewers for the BL subsystem. > > >> > > >> Acked-by: Jingoo Han <jg1.han@xxxxxxxxxxx> > > >> > > >> Lee Jones, > > >> Would you merge this patch into your backlight git tree? > > > > > > Hans, does this series depend on things that I've applied already? If so, > > > I'd very much prefer to take this series too as a whole. > > > > The 3th patch in this series: > > " acpi-video: Unregister the backlight device if a raw one shows up later" > > depends on my "acpi-video: Add an acpi_video_unregister_backlight function" > > patch, which you've applied to your linux-next branch already. > > > > As well as on the 2nd patch in this series: > > "backlight: Add backlight device (un)registration notification" > > > > So I agree that it is a good idea to take the whole series through your tree. > > I'm fine with that. > > Rafael, could you apply the set onto an immutable branch and send me a > signed pull-request please? You can find this patch on the branch at git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git acpi-video The top-most commit is 0dc6b96ac20c (ACPI / video: Add 4 new models to the use_native_backlight DMI list). Please feel free to pull from there if necessary, it is not going to be rebased. Thanks! -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.
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