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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a19788612f
Renesas R-Mobile APE6 support is currently unused:
- DMA slaves were never enabled in r8a73a4.dtsi,
- The driver relies on legacy filter matching and describing all
slaves and MID/RIDs in a table, unlike modern DMA engine drivers for
similar hardware like rcar-dmac,
- The driver doesn't seem to work well.
Remove the driver, it can be resurrected from git history when needed.
As this was the last user of SH_DMAE_BASE on Renesas ARM SoCs, the
sh-dma-engine driver core is now used on SuperH only.
Note that the DT bindings are still present, as r8a73a4.dtsi uses them.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
56 lines
1.1 KiB
Plaintext
56 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0
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#
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# DMA engine configuration for sh
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#
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config RENESAS_DMA
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bool
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select DMA_ENGINE
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#
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# DMA Engine Helpers
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#
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config SH_DMAE_BASE
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bool "Renesas SuperH DMA Engine support"
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depends on SUPERH || COMPILE_TEST
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depends on !SUPERH || SH_DMA
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depends on !SH_DMA_API
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default y
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select RENESAS_DMA
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help
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Enable support for the Renesas SuperH DMA controllers.
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#
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# DMA Controllers
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#
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config SH_DMAE
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tristate "Renesas SuperH DMAC support"
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depends on SH_DMAE_BASE
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help
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Enable support for the Renesas SuperH DMA controllers.
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config RCAR_DMAC
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tristate "Renesas R-Car Gen2 DMA Controller"
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depends on ARCH_RENESAS || COMPILE_TEST
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select RENESAS_DMA
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help
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This driver supports the general purpose DMA controller found in the
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Renesas R-Car second generation SoCs.
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config RENESAS_USB_DMAC
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tristate "Renesas USB-DMA Controller"
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depends on ARCH_RENESAS || COMPILE_TEST
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select RENESAS_DMA
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select DMA_VIRTUAL_CHANNELS
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help
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This driver supports the USB-DMA controller found in the Renesas
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SoCs.
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config SUDMAC
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tristate "Renesas SUDMAC support"
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depends on SH_DMAE_BASE
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help
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Enable support for the Renesas SUDMAC controllers.
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