On 3/17/23 10:31, Krzysztof Kozlowski wrote:
On 15/03/2023 12:47, Cristian Ciocaltea wrote:Commit 370f696e4474 ("dt-bindings: serial: snps-dw-apb-uart: add dma & dma-names properties") documented dma-names property to handle Allwiner D1 dtbs_check warnings, but relies on a strict rx->tx ordering, which is the reverse of what a different board expects: rk3326-odroid-go2.dtb: serial@ff030000: dma-names:0: 'rx' was expected A quick and incomplete check shows the inconsistency is present in many other DT files:Why not fixing the DTS? The properties should have fixed order.
I was initially concerned about the risk of a potential ABI breakage, but I think that's not really a problem since dma-names is not directly accessed in the driver and DT Kernel API doesn't rely on a particular order.
If there are no objections, I would switch the order in the binding to tx->rx, since that's what most of the DTS use, and fix the remaining ones.
Best regards, Krzysztof
Thanks, Cristian
