On 10-11-22, 22:47, Akhil R wrote: > Read dma-channel-mask from device tree and register only the > specified channels. This is useful to reserve some channels for the > firmware. > > Also update the channel number and interrupts to include all 32 > channels. The current DT bindings has only 31 interrupts which is wrong > and doesn't align with the hardware. This was done to reserve channel0 > for the firmware. Now with this change, the driver can align more to the > actual hardware. but this implies that there will be a breakage in the > ABI and device tree must be updated along with the driver change > for it to pickup the right interrupt corresponding to the channel. > > This breakage is okay right now because GPC DMA was introduced on > Tegra186 and the DT bindings were added in 5.19. Any products released > with this IP were released with kernels prior to 5.19 and bindings that > were never in-tree. Any of those products that are supported upstream we > know have replaceable DTB images (i.e. by default they are flashed at the > same time as the kernel image). Applied 1 & 3, thanks -- ~Vinod
