Commit ce8148d7 authored by Miquel Raynal's avatar Miquel Raynal
Browse files

mtd: rawnand: Rename a NAND chip option 



NAND controller drivers can set the NAND_USE_BOUNCE_BUFFER flag to a
chip 'option' field. With this flag, the core is responsible of
providing DMA-able buffers.

The current behavior is to not force the use of a bounce buffer when
the core thinks this is not needed. So in the end the name is a bit
misleading, because in theory we will always have a DMA buffer but in
practice it will not always be a bounce buffer.

Rename this flag NAND_USES_DMA to be more accurate.

Signed-off-by: default avatarMiquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: default avatarBoris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/linux-mtd/20200507105241.14299-4-miquel.raynal@bootlin.com
parent 96d627bd

drivers/mtd/nand/raw/atmel/nand-controller.c

+1 −1
Original line number Diff line number Diff line
@@ -1494,7 +1494,7 @@ static void atmel_nand_init(struct atmel_nand_controller *nc, 
	 * suitable for DMA.

	 */

	if (nc->dmac)

		chip->options |= NAND_USE_BOUNCE_BUFFER;

		chip->options |= NAND_USES_DMA;



	/* Default to HW ECC if pmecc is available. */

	if (nc->pmecc)

drivers/mtd/nand/raw/brcmnand/brcmnand.c

+1 −1
Original line number Diff line number Diff line
@@ -2576,7 +2576,7 @@ static int brcmnand_attach_chip(struct nand_chip *chip) 
	 * to/from, and have nand_base pass us a bounce buffer instead, as

	 * needed.

	 */

	chip->options |= NAND_USE_BOUNCE_BUFFER;

	chip->options |= NAND_USES_DMA;



	if (chip->bbt_options & NAND_BBT_USE_FLASH)

		chip->bbt_options |= NAND_BBT_NO_OOB;

drivers/mtd/nand/raw/denali.c

+1 −1
Original line number Diff line number Diff line
@@ -1226,7 +1226,7 @@ int denali_chip_init(struct denali_controller *denali, 
		mtd->name = "denali-nand";



	if (denali->dma_avail) {

		chip->options |= NAND_USE_BOUNCE_BUFFER;

		chip->options |= NAND_USES_DMA;

		chip->buf_align = 16;

	}

drivers/mtd/nand/raw/meson_nand.c

+1 −1
Original line number Diff line number Diff line
@@ -1269,7 +1269,7 @@ meson_nfc_nand_chip_init(struct device *dev, 
	nand_set_flash_node(nand, np);

	nand_set_controller_data(nand, nfc);



	nand->options |= NAND_USE_BOUNCE_BUFFER;

	nand->options |= NAND_USES_DMA;

	mtd = nand_to_mtd(nand);

	mtd->owner = THIS_MODULE;

	mtd->dev.parent = dev;

drivers/mtd/nand/raw/mtk_nand.c

+1 −1
Original line number Diff line number Diff line
@@ -1380,7 +1380,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, 
	nand_set_flash_node(nand, np);

	nand_set_controller_data(nand, nfc);



	nand->options |= NAND_USE_BOUNCE_BUFFER | NAND_SUBPAGE_READ;

	nand->options |= NAND_USES_DMA | NAND_SUBPAGE_READ;

	nand->legacy.dev_ready = mtk_nfc_dev_ready;

	nand->legacy.select_chip = mtk_nfc_select_chip;

	nand->legacy.write_byte = mtk_nfc_write_byte;

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