Hello, On Thu, Dec 19, 2024 at 06:24:53AM -0600, Rob Herring wrote: > On Tue, Dec 17, 2024 at 04:24:27PM +0100, Ricardo Ribalda wrote: > > Hi Rob > > > > On Tue, 17 Dec 2024 at 16:02, Rob Herring <robh@xxxxxxxxxx> wrote: > > > > > > On Thu, Dec 12, 2024 at 09:44:37PM +0000, Ricardo Ribalda wrote: > > > > For some devices like cameras the system needs to know where they are > > > > mounted. > > > > > > Why do you need this and why only this property and not the dozens > > > others ACPI has? > > > > Userspace needs that information to correctly show it in the UI. Eg; > > > > - User facing camera needs to be mirrored during preview. > > - The user facing camera is selected by default during videoconferences > > - The world facing camera is selected by default when taking a photo > > - User facing camera have different parameter defaults than world facing. > > We already have "orientation" defined for this purpose. I was thinking of the same. It's defined (for cameras) in Documentation/devicetree/bindings/media/video-interface-devices.yaml . > > > > > Right now, the only camera driver that expose the ACPI location > > information is the IPU from intel > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/media/pci/intel/ipu-bridge.c#n258 > > > > And they are only using the panel. > > > > If we need more information we can consider adding more parameters in > > the future. -- Regards, Sakari Ailus
