On 28/02/24 3:53 pm, Krzysztof Kozlowski wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On 28/02/2024 11:18, Dharma.B@xxxxxxxxxxxxx wrote: >> On 28/02/24 12:43 pm, Krzysztof Kozlowski wrote: >>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe >>> >>> On 28/02/2024 07:59, Dharma.B@xxxxxxxxxxxxx wrote: >>>> >>>>> >>>>> I don't know what's this exactly, but if embedded display then maybe >>>>> could be part of this device node. If some other display, then maybe you >>>>> need another schema, with compatible? But first I would check how others >>>>> are doing this. >>>> >>>> Okay, then I think the driver also needs to be modified, currently the >>>> driver parses the phandle and looks for these properties. Also the >>>> corresponding dts files. >>> >>> Driver does not have to be modified in my proposal. You would still have >>> phandle. >> >> If I understand correctly, I could define the dt bindings as below >> >> display: >> $ref: /schemas/types.yaml#/definitions/phandle >> description: A phandle pointing to the display node. >> >> panel: >> $ref: panel/panel-common.yaml# >> properties: >> > > So these are standard panel bindings? Then the node should live outside > of lcdc. If current driver needs to poke inside panel and panel could be > anything, then probably you need peripheral-props-like approach. :/ Thank you so much, so can I use something like this display: $ref: /schemas/types.yaml#/definitions/phandle description: A phandle pointing to the display node. patternProperties: "^panel": type: object properties: atmel,dmacon: atmel,lcdcon2: : : required: - atmel,dmacon - atmel,lcdcon2 - atmel,guard-time - bits-per-pixel additionalProperties: false I tested it by removing the required property in the panel node and it flagged it as an issue. > > Best regards, > Krzysztof > -- With Best Regards, Dharma B.