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| author |   Fabrizio Castro <fabrizio.castro.jz@renesas.com> | 2025-04-23 15:34:20 +0100 |
|---|---|---|
| committer |   Vinod Koul <vkoul@kernel.org> | 2025-05-14 15:30:40 +0100 |
| commit | 056a8aac1fce52da9ad0b6488eb074e3846f37c0 (patch) | |
| tree | fe9c636c0c3d17f344ac9b83a84b0ec7ce06ac24 /drivers/dma | |
| parent | irqchip/renesas-rzv2h: Add rzv2h_icu_register_dma_req() (diff) | |
| download | linux-rng-056a8aac1fce52da9ad0b6488eb074e3846f37c0.tar.xz linux-rng-056a8aac1fce52da9ad0b6488eb074e3846f37c0.zip | |
dmaengine: sh: rz-dmac: Allow for multiple DMACs
dma_request_channel() calls into __dma_request_channel() with
NULL as value for np, which won't allow for the selection of the
correct DMAC when multiple DMACs are available.
Switch to using __dma_request_channel() directly so that we can
choose the desired DMA for the channel. This is in preparation
of adding DMAC support for the Renesas RZ/V2H(P) and similar SoCs.
Signed-off-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20250423143422.3747702-5-fabrizio.castro.jz@renesas.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/sh/rz-dmac.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/sh/rz-dmac.c b/drivers/dma/sh/rz-dmac.c index 9235db551026..d7a4ce28040b 100644 --- a/drivers/dma/sh/rz-dmac.c +++ b/drivers/dma/sh/rz-dmac.c @@ -748,7 +748,8 @@ static struct dma_chan *rz_dmac_of_xlate(struct of_phandle_args *dma_spec, dma_cap_zero(mask); dma_cap_set(DMA_SLAVE, mask); - return dma_request_channel(mask, rz_dmac_chan_filter, dma_spec); + return __dma_request_channel(&mask, rz_dmac_chan_filter, dma_spec, + ofdma->of_node); } /* |