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Only Tegra234+ devices are currently supported and for these devices the only DMA drivers that are supported for Linux are the Tegra210 ADMA and Tegra186 GPCDMA drivers. Neither of these drivers ever supported the 'slave_id' parameter for configuring the DMA request ID for a given channel. These drivers have always used device-tree to retrieve this information. Only the Tegra20 APBDMA controller supported the 'slave_id' field and this was dropped in Linux v5.17. The Tegra20 APBDMA driver was supported in Tegra devices up until Tegra210, but starting with Tegra186 it is no longer supported. Given that this is a legacy feature only supported for legacy Tegra devices and drivers, drop the 'slave_id' support completely. Bug 4425688 Change-Id: Id9bb6440805826dfb0cf0d862d6b15fd856e61ff Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3038964 Reviewed-by: svcacv <svcacv@nvidia.com> Reviewed-by: Chris Dragan <kdragan@nvidia.com> GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>