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mtd: rawnand: lpx32xx: Request DMA channels using DT entries

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Move away from pl08x platform data towards device tree.

Signed-off-by: Piotr Wojtaszczyk <piotr.wojtaszczyk@timesys.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20240627150046.258795-11-piotr.wojtaszczyk@timesys.com
This commit is contained in:
Piotr Wojtaszczyk 2024-06-27 17:00:28 +02:00 committed by Miquel Raynal
parent 14427d4b88
commit 4782118674
2 changed files with 30 additions and 22 deletions
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26
drivers/mtd/nand/raw/lpc32xx_mlc.c
View File

@ -574,18 +574,22 @@ static int lpc32xx_dma_setup(struct lpc32xx_nand_host *host)
struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
dma_cap_mask_t mask;
if (!host->pdata || !host->pdata->dma_filter) {
dev_err(mtd->dev.parent, "no DMA platform data\n");
return -ENOENT;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_chan = dma_request_channel(mask, host->pdata->dma_filter,
"nand-mlc");
host->dma_chan = dma_request_chan(mtd->dev.parent, "rx-tx");
if (!host->dma_chan) {
dev_err(mtd->dev.parent, "Failed to request DMA channel\n");
return -EBUSY;
/* fallback to request using platform data */
if (!host->pdata || !host->pdata->dma_filter) {
dev_err(mtd->dev.parent, "no DMA platform data\n");
return -ENOENT;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_chan = dma_request_channel(mask, host->pdata->dma_filter, "nand-mlc");
if (!host->dma_chan) {
dev_err(mtd->dev.parent, "Failed to request DMA channel\n");
return -EBUSY;
}
}
/*

26
drivers/mtd/nand/raw/lpc32xx_slc.c
View File

@ -721,18 +721,22 @@ static int lpc32xx_nand_dma_setup(struct lpc32xx_nand_host *host)
struct mtd_info *mtd = nand_to_mtd(&host->nand_chip);
dma_cap_mask_t mask;
if (!host->pdata || !host->pdata->dma_filter) {
dev_err(mtd->dev.parent, "no DMA platform data\n");
return -ENOENT;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_chan = dma_request_channel(mask, host->pdata->dma_filter,
"nand-slc");
host->dma_chan = dma_request_chan(mtd->dev.parent, "rx-tx");
if (!host->dma_chan) {
dev_err(mtd->dev.parent, "Failed to request DMA channel\n");
return -EBUSY;
/* fallback to request using platform data */
if (!host->pdata || !host->pdata->dma_filter) {
dev_err(mtd->dev.parent, "no DMA platform data\n");
return -ENOENT;
}
dma_cap_zero(mask);
dma_cap_set(DMA_SLAVE, mask);
host->dma_chan = dma_request_channel(mask, host->pdata->dma_filter, "nand-slc");
if (!host->dma_chan) {
dev_err(mtd->dev.parent, "Failed to request DMA channel\n");
return -EBUSY;
}
}
return 0;