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SubjectRe: [PATCH v2 1/2] mtd: spinand: toshiba: Rename function name to change suffix and prefix (8Gbit)
Date
On 28.02.20 04:11, Yoshio Furuyama wrote:
> The suffix was changed to classify from "g" to "j" between 1st generation
> device and 2nd generation device that's new Serial NAND of Kioxia brand.

I had to read this sentence multiple times to understand it. Maybe
something like this would be better:

The suffix was changed from "g" to "j" to classify between 1st
generation and 2nd generation serial NAND devices (which now belong to
the Kioxia brand).

> As reference that's
> 1st generation device of 1Gbit product is "tc58cvg0s3hraig"
> 2nd generation device of 1Gbit product is "tc58cvg0s3hraij".
>
> The 8Gbit product "TH58CxG3S0HRAIJ" is new line up of Kioxia's serial nand
> and changed the prefix from tc58 to th58.
> Thus it was changed argument to the function from "tc58cxgxsx" to
> "tx58cxgxsxraix".

Same here. It is very hard to read. I would write something like this:

The 8Gbit type "TH58CxG3S0HRAIJ" is new to Kioxia's serial NAND lineup
and the prefix was changed from "TC58" to "TH85".

Thus the functions were renamed from tc58cxgxsx_*() to
tx58cxgxsxraix_*().

With an easier to understand commit message:

Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>

>
> Signed-off-by: Yoshio Furuyama <ytc-mb-yfuruyama7@kioxia.com>
> ---
> changelog[v2]:Split 2 patches, and add patch description.
>
> drivers/mtd/nand/spi/toshiba.c | 60 +++++++++++++++++++++---------------------
> 1 file changed, 30 insertions(+), 30 deletions(-)
>
> diff --git a/drivers/mtd/nand/spi/toshiba.c b/drivers/mtd/nand/spi/toshiba.c
> index 0db5ee4..700d86f 100644
> --- a/drivers/mtd/nand/spi/toshiba.c
> +++ b/drivers/mtd/nand/spi/toshiba.c
> @@ -25,8 +25,8 @@ static SPINAND_OP_VARIANTS(write_cache_variants,
> static SPINAND_OP_VARIANTS(update_cache_variants,
> SPINAND_PROG_LOAD(false, 0, NULL, 0));
>
> -static int tc58cxgxsx_ooblayout_ecc(struct mtd_info *mtd, int section,
> - struct mtd_oob_region *region)
> +static int tx58cxgxsxraix_ooblayout_ecc(struct mtd_info *mtd, int section,
> + struct mtd_oob_region *region)
> {
> if (section > 0)
> return -ERANGE;
> @@ -37,8 +37,8 @@ static int tc58cxgxsx_ooblayout_ecc(struct mtd_info *mtd, int section,
> return 0;
> }
>
> -static int tc58cxgxsx_ooblayout_free(struct mtd_info *mtd, int section,
> - struct mtd_oob_region *region)
> +static int tx58cxgxsxraix_ooblayout_free(struct mtd_info *mtd, int section,
> + struct mtd_oob_region *region)
> {
> if (section > 0)
> return -ERANGE;
> @@ -50,13 +50,13 @@ static int tc58cxgxsx_ooblayout_free(struct mtd_info *mtd, int section,
> return 0;
> }
>
> -static const struct mtd_ooblayout_ops tc58cxgxsx_ooblayout = {
> - .ecc = tc58cxgxsx_ooblayout_ecc,
> - .free = tc58cxgxsx_ooblayout_free,
> +static const struct mtd_ooblayout_ops tx58cxgxsxraix_ooblayout = {
> + .ecc = tx58cxgxsxraix_ooblayout_ecc,
> + .free = tx58cxgxsxraix_ooblayout_free,
> };
>
> -static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand,
> - u8 status)
> +static int tx58cxgxsxraix_ecc_get_status(struct spinand_device *spinand,
> + u8 status)
> {
> struct nand_device *nand = spinand_to_nand(spinand);
> u8 mbf = 0;
> @@ -95,75 +95,75 @@ static int tc58cxgxsx_ecc_get_status(struct spinand_device *spinand,
>
> static const struct spinand_info toshiba_spinand_table[] = {
> /* 3.3V 1Gb */
> - SPINAND_INFO("TC58CVG0S3", 0xC2,
> + SPINAND_INFO("TC58CVG0S3HRAIG", 0xC2,
> NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> /* 3.3V 2Gb */
> - SPINAND_INFO("TC58CVG1S3", 0xCB,
> + SPINAND_INFO("TC58CVG1S3HRAIG", 0xCB,
> NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> /* 3.3V 4Gb */
> - SPINAND_INFO("TC58CVG2S0", 0xCD,
> + SPINAND_INFO("TC58CVG2S0HRAIG", 0xCD,
> NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> /* 3.3V 4Gb */
> - SPINAND_INFO("TC58CVG2S0", 0xED,
> + SPINAND_INFO("TC58CVG2S0HRAIJ", 0xED,
> NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> /* 1.8V 1Gb */
> - SPINAND_INFO("TC58CYG0S3", 0xB2,
> + SPINAND_INFO("TC58CYG0S3HRAIG", 0xB2,
> NAND_MEMORG(1, 2048, 128, 64, 1024, 20, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> /* 1.8V 2Gb */
> - SPINAND_INFO("TC58CYG1S3", 0xBB,
> + SPINAND_INFO("TC58CYG1S3HRAIG", 0xBB,
> NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> /* 1.8V 4Gb */
> - SPINAND_INFO("TC58CYG2S0", 0xBD,
> + SPINAND_INFO("TC58CYG2S0HRAIG", 0xBD,
> NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 1),
> NAND_ECCREQ(8, 512),
> SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> &write_cache_variants,
> &update_cache_variants),
> 0,
> - SPINAND_ECCINFO(&tc58cxgxsx_ooblayout,
> - tc58cxgxsx_ecc_get_status)),
> + SPINAND_ECCINFO(&tx58cxgxsxraix_ooblayout,
> + tx58cxgxsxraix_ecc_get_status)),
> };
>
> static int toshiba_spinand_detect(struct spinand_device *spinand)
>
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