Hi Stefan, On Mon, Feb 12, 2024 at 08:20:35PM +0100, Stefan Wahren wrote: > Am 10.02.24 um 02:18 schrieb Sebastian Reichel: > > i.MX6UL(L) uses "fsl,imx6sx-lcdif" as fallback compatible string, > > but has only very lightweight DISPLAY power domain. Its DISPLAY > > power domain is not supported by the binding / Linux kernel at > > the moment. Since the current setup is working, let's remove the > > power-domain from being required for that platform to fix the warning > > printed by CHECK_DTBS=y. > i'm not sure this is a good idea. In case i.MX6UL(L) is different from > i.MX6SX here, then it should have a different compatible. It already has. The i.MX6UL(L) compatible looks like this: compatible = "fsl,imx6ul-lcdif", "fsl,imx6sx-lcdif" So the i.MX6SX one is just a fallback compatible. But the current requirement for power-domains affects i.MX6UL(L), since it says the compatible only needs to contain "fsl,imx6sx-lcdif" somewhere to make power-domains mandatory. Note, that the kernel driver does not use "fsl,imx6ul-lcdif", so the hardware itself is indeed compatible. -- Sebastian
