andersm 8aad6c65fc MODS: add mods_tegra_dma platform driver ...

For upstream dma engine slave_id in <struct dma_slave_config> is obsolete.
The Correct way to specify slave_id is
to call dma_request_chan API along with device name defined in dts node.

mods_tegra_dma: mods_tegra_dma {
    compatible = "nvidia,mods_tegra_dma";
    dmas = <&gpcdma 15>, <&gpcdma 16>;
    dma-names = "spi1_rx", "spi2_tx";
    status = "okay";
};

To keep kernel ABI compatibility,
add a new ioctl cmd MODS_ESC_DMA_REQUEST_HANDLE_2.
A new struct MODS_DMA_HANDLE_2 is used together with it.
A new function esc_mods_dma_request_channel_2 is implemented accordingly.

JIRA:TM-728

Change-Id: Ic84f294e2248d800b9aacd597a7ce0a84fc94a1d
Signed-off-by: andersm <andersm@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2711537
Signed-off-by: xueyuanb <xueyuanb@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2753148
Reviewed-by: Chris Dragan <kdragan@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

2023-04-03 13:27:53 +00:00

13 KiB

Raw Blame History

View Raw