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spi: spi-rspi: Remove setting {src,dst}_{addr,addr_width} based on DMA direction

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[ Upstream commit 6f381481a5 ]

The direction field in the DMA config is deprecated. The rspi driver
sets {src,dst}_{addr,addr_width} based on the DMA direction and
it results in dmaengine_slave_config() failure as RZ DMAC driver
validates {src,dst}_addr_width values independent of DMA direction.

This patch fixes the issue by passing both {src,dst}_{addr,addr_width}
values independent of DMA direction.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Suggested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220411173115.6619-1-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Biju Das
2022-04-11 18:31:15 +01:00
committed by Greg Kroah-Hartman
parent e2b8681769
commit fbfeb9bc94
1 changed files with 6 additions and 9 deletions
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15
drivers/spi/spi-rspi.c
View File

@@ -1107,14 +1107,11 @@ static struct dma_chan *rspi_request_dma_chan(struct device *dev,
}
memset(&cfg, 0, sizeof(cfg));
cfg.dst_addr = port_addr + RSPI_SPDR;
cfg.src_addr = port_addr + RSPI_SPDR;
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
cfg.direction = dir;
if (dir == DMA_MEM_TO_DEV) {
cfg.dst_addr = port_addr;
cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
} else {
cfg.src_addr = port_addr;
cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE;
}
ret = dmaengine_slave_config(chan, &cfg);
if (ret) {
@@ -1145,12 +1142,12 @@ static int rspi_request_dma(struct device *dev, struct spi_controller *ctlr,
}
ctlr->dma_tx = rspi_request_dma_chan(dev, DMA_MEM_TO_DEV, dma_tx_id,
res->start + RSPI_SPDR);
res->start);
if (!ctlr->dma_tx)
return -ENODEV;
ctlr->dma_rx = rspi_request_dma_chan(dev, DMA_DEV_TO_MEM, dma_rx_id,
res->start + RSPI_SPDR);
res->start);
if (!ctlr->dma_rx) {
dma_release_channel(ctlr->dma_tx);
ctlr->dma_tx = NULL;