> Subject: Re: [PATCH v2 5/6] arm64: dts: imx8ulp: update gpio node > > On 16/09/2023 04:04, Peng Fan (OSS) wrote: > > From: Peng Fan <peng.fan@xxxxxxx> > > > > The i.MX8ULP GPIO supports two interrupts and one register base, and > > not compatible with i.MX7ULP. Update the node following dt-binding doc. > > > I think last email thread concluded they are compatible. Otherwise, how did it > work so far? You break users, which might be ok, but commit does no say > that anything was broken here. Per, https://lore.kernel.org/all/02e25e44-1146-bb59-58de-800b11d30e7b@xxxxxxxxxx/ I thought we agree they are not HW compatible, it is SW trick to make Linux driver could work with both with i.MX7ULP compatible. I will add more information in commit to describe breaking users. BTW: in linux driver in this patchset, I have added code to support legacy bindings. Thanks, Peng. > > Best regards, > Krzysztof
