From c96ffedf8a2f91c9124012ec4eef42a3da01d08b Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Fri, 12 Apr 2019 00:00:55 +0200 Subject: [PATCH] mtd: rawnand: meson: use a void pointer for meson_nfc_dma_buffer_setup This simplifies the code because it gets rid of the casts to an u8-pointer when passing "info_buf" from struct meson_nfc_nand_chip. Also it gets rid of the cast of the u8 databuf pointer to a void pointer. The logic inside meson_nfc_dma_buffer_setup() doesn't care about the pointer types themselves because it only passes them to dma_map_single which accepts a void pointer. No functional changes. Signed-off-by: Martin Blumenstingl Tested-by:Liang Yang Acked-by: Liang Yang Tested-by:Liang Yang Acked-by: Liang Yang Tested-by:Liang Yang Acked-by: Liang Yang Signed-off-by: Miquel Raynal --- drivers/mtd/nand/raw/meson_nand.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c index 9a60236..57cc4bd 100644 --- a/drivers/mtd/nand/raw/meson_nand.c +++ b/drivers/mtd/nand/raw/meson_nand.c @@ -470,15 +470,15 @@ static int meson_nfc_ecc_correct(struct nand_chip *nand, u32 *bitflips, return ret; } -static int meson_nfc_dma_buffer_setup(struct nand_chip *nand, u8 *databuf, - int datalen, u8 *infobuf, int infolen, +static int meson_nfc_dma_buffer_setup(struct nand_chip *nand, void *databuf, + int datalen, void *infobuf, int infolen, enum dma_data_direction dir) { struct meson_nfc *nfc = nand_get_controller_data(nand); u32 cmd; int ret = 0; - nfc->daddr = dma_map_single(nfc->dev, (void *)databuf, datalen, dir); + nfc->daddr = dma_map_single(nfc->dev, databuf, datalen, dir); ret = dma_mapping_error(nfc->dev, nfc->daddr); if (ret) { dev_err(nfc->dev, "DMA mapping error\n"); @@ -645,7 +645,7 @@ static int meson_nfc_write_page_sub(struct nand_chip *nand, return ret; ret = meson_nfc_dma_buffer_setup(nand, meson_chip->data_buf, - data_len, (u8 *)meson_chip->info_buf, + data_len, meson_chip->info_buf, info_len, DMA_TO_DEVICE); if (ret) return ret; @@ -729,7 +729,7 @@ static int meson_nfc_read_page_sub(struct nand_chip *nand, return ret; ret = meson_nfc_dma_buffer_setup(nand, meson_chip->data_buf, - data_len, (u8 *)meson_chip->info_buf, + data_len, meson_chip->info_buf, info_len, DMA_FROM_DEVICE); if (ret) return ret; -- 2.7.4