On Tue, Sep 19, 2023 at 9:17 AM Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> wrote: > > On Mon, Sep 18, 2023 at 06:44:25PM +0800, Chen-Yu Tsai wrote: > > On Mon, Sep 18, 2023 at 6:32 PM Laura Nao <laura.nao@xxxxxxxxxxxxx> wrote: > > > > > > > Other than patch 2 and 14, I have applied this set. The remaining patches will > > > > have to be resent to Matthias. > > > > > > > Thanks, > > > > Mathieu > > > > > > Hello, > > > > > > With patch 2 missing, the SCP is not probed correctly anymore on asurada (MT8192) and kukui (MT8183). The mtk-scp driver relies on the existence of the `cros-ec-rpmsg` node in the dt to determine if the SCP is single or multicore. Without patch 2 the driver wrongly assumes the SCP on MT8192 and MT8183 are multicore, leading to the following errors during initialization: > > > > > > 10696 04:33:59.126671 <3>[ 15.465714] platform 10500000.scp:cros-ec: invalid resource (null) > > > 10697 04:33:59.142855 <3>[ 15.478560] platform 10500000.scp:cros-ec: Failed to parse and map sram memory > > > 10698 04:33:59.149650 <3>[ 15.486121] mtk-scp 10500000.scp: Failed to initialize core 0 rproc > > > > > > The issue was caught by KernelCI, complete logs can be found here: > > > - asurada: https://storage.kernelci.org/next/master/next-20230914/arm64/defconfig+arm64-chromebook+videodec/gcc-10/lab-collabora/baseline-nfs-mt8192-asurada-spherion-r0.html > > > - kukui: https://storage.kernelci.org/next/master/next-20230914/arm64/defconfig+arm64-chromebook+videodec/gcc-10/lab-collabora/baseline-nfs-mt8183-kukui-jacuzzi-juniper-sku16.html > > > > > > Reporting the issue so that patch 2 and 14 can be resent and merged soon. > > > > This being a backward incompatible DT binding change, maybe we should revert > > the node name change. Or, the driver could simply count the number of child > > nodes that have the "mediatek,rpmsg-name" property, which is required. > > > > You have a point. Can someone send a patch that makes this patchset backward > compatible? Please do so as quickly as possible to that it can go in the next > merge window with the rest of this feature. Otherwize I'll have to back out the > whole thing. I sent out a patch [1] implementing my proposed change. ChenYu [1] https://lore.kernel.org/linux-remoteproc/20230919050305.3817347-1-wenst@xxxxxxxxxxxx/
