On 10/01/2024 10:26, Alexander Stein wrote: > Hi Krzysztof, > > Am Mittwoch, 20. Dezember 2023, 16:48:34 CET schrieb Krzysztof Kozlowski: >> On 19/12/2023 13:29, Alexander Stein wrote: >>> On SoC like i.MX8QXP some SAI IP cores support only Rx path. Allow >>> specifying only an Rx DMA channel, while omitting the Tx one. >>> >>> Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx> >>> --- >>> The feature list in reference manual IMX8DQXPRM Rev. 0 05/2020 >>> section 1.1.2 "Features" explicitly state that SAI2 and SAI3 is >>> receive only. >> >> Why aren't you constraining it per variant/device? If only some have one >> DMA channel, then I would normally expect allOf:if:then narrowing it for >> each device. > > I'm not sure I get what you want to constraint. In the very same SoC there are > SAI IP instances supporting Rx & Tx while others support Rx only. > The feature list in RM IMX8DQXPRM Rev. 0 05/2020 states: >> 4x SAI (SAI0 and SAI1 are transmit/receive; SAI2 and SAI3 are receive only) > > An actual example can be seen at [1]. > Ah, that's fine. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Best regards, Krzysztof
