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Message-ID: <20200915101321.1afa5033@xps13>
Date:   Tue, 15 Sep 2020 10:13:21 +0200
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Thirumalesha Narasimhappa <nthirumalesha7@...il.com>
Cc:     Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Shivamurthy Shastri <sshivamurthy@...ron.com>,
        Boris Brezillon <boris.brezillon@...labora.com>,
        Chuanhong Guo <gch981213@...il.com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 1/2] mtd: spinand: micron: Generalize the function
 and structure names

Hi Thirumalesha,

Thirumalesha Narasimhappa <nthirumalesha7@...il.com> wrote on Mon, 14
Sep 2020 00:15:32 +0800:

> Rename the oob structure and read/write/update function names to
> a generic names
> 
> Signed-off-by: Thirumalesha Narasimhappa <nthirumalesha7@...il.com>
> ---
>  drivers/mtd/nand/spi/micron.c | 80 +++++++++++++++++------------------
>  1 file changed, 40 insertions(+), 40 deletions(-)
> 
> diff --git a/drivers/mtd/nand/spi/micron.c b/drivers/mtd/nand/spi/micron.c
> index 5d370cfcdaaa..d1b1073d1a55 100644
> --- a/drivers/mtd/nand/spi/micron.c
> +++ b/drivers/mtd/nand/spi/micron.c
> @@ -28,7 +28,7 @@
>  
>  #define MICRON_SELECT_DIE(x)	((x) << 6)
>  
> -static SPINAND_OP_VARIANTS(read_cache_variants,
> +static SPINAND_OP_VARIANTS(quadio_read_cache_variants,
>  		SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
>  		SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
>  		SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
> @@ -36,11 +36,11 @@ static SPINAND_OP_VARIANTS(read_cache_variants,
>  		SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
>  		SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
>  
> -static SPINAND_OP_VARIANTS(write_cache_variants,
> +static SPINAND_OP_VARIANTS(x4_write_cache_variants,

Why quadio_read and x4_write? I don't get the logic.

>  		SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
>  		SPINAND_PROG_LOAD(true, 0, NULL, 0));
>  
> -static SPINAND_OP_VARIANTS(update_cache_variants,
> +static SPINAND_OP_VARIANTS(x4_update_cache_variants,
>  		SPINAND_PROG_LOAD_X4(false, 0, NULL, 0),
>  		SPINAND_PROG_LOAD(false, 0, NULL, 0));
>  
> @@ -69,7 +69,7 @@ static int micron_8_ooblayout_free(struct mtd_info *mtd, int section,
>  	return 0;
>  }
>  
> -static const struct mtd_ooblayout_ops micron_8_ooblayout = {
> +static const struct mtd_ooblayout_ops micron_grouped_ooblayout = {

Is this necessary? What does "grouped" means? Should we rename all
functions with _8_ in it to make sense?

>  	.ecc = micron_8_ooblayout_ecc,
>  	.free = micron_8_ooblayout_free,
>  };
> @@ -120,55 +120,55 @@ static const struct spinand_info micron_spinand_table[] = {
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x24),
>  		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1),
>  		     NAND_ECCREQ(8, 512),
> -		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> -					      &write_cache_variants,
> -					      &update_cache_variants),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     0,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status)),
>  	/* M79A 2Gb 1.8V */
>  	SPINAND_INFO("MT29F2G01ABBGD",
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x25),
>  		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 2, 1, 1),
>  		     NAND_ECCREQ(8, 512),
> -		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> -					      &write_cache_variants,
> -					      &update_cache_variants),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     0,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status)),
>  	/* M78A 1Gb 3.3V */
>  	SPINAND_INFO("MT29F1G01ABAFD",
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x14),
>  		     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),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     0,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status)),
>  	/* M78A 1Gb 1.8V */
>  	SPINAND_INFO("MT29F1G01ABAFD",
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x15),
>  		     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),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     0,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status)),
>  	/* M79A 4Gb 3.3V */
>  	SPINAND_INFO("MT29F4G01ADAGD",
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x36),
>  		     NAND_MEMORG(1, 2048, 128, 64, 2048, 80, 2, 1, 2),
>  		     NAND_ECCREQ(8, 512),
> -		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> -					      &write_cache_variants,
> -					      &update_cache_variants),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     0,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status),
>  		     SPINAND_SELECT_TARGET(micron_select_target)),
>  	/* M70A 4Gb 3.3V */
> @@ -176,33 +176,33 @@ static const struct spinand_info micron_spinand_table[] = {
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x34),
>  		     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),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     SPINAND_HAS_CR_FEAT_BIT,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status)),
>  	/* M70A 4Gb 1.8V */
>  	SPINAND_INFO("MT29F4G01ABBFD",
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x35),
>  		     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),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     SPINAND_HAS_CR_FEAT_BIT,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status)),
>  	/* M70A 8Gb 3.3V */
>  	SPINAND_INFO("MT29F8G01ADAFD",
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x46),
>  		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 2),
>  		     NAND_ECCREQ(8, 512),
> -		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> -					      &write_cache_variants,
> -					      &update_cache_variants),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     SPINAND_HAS_CR_FEAT_BIT,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status),
>  		     SPINAND_SELECT_TARGET(micron_select_target)),
>  	/* M70A 8Gb 1.8V */
> @@ -210,11 +210,11 @@ static const struct spinand_info micron_spinand_table[] = {
>  		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x47),
>  		     NAND_MEMORG(1, 4096, 256, 64, 2048, 40, 1, 1, 2),
>  		     NAND_ECCREQ(8, 512),
> -		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
> -					      &write_cache_variants,
> -					      &update_cache_variants),
> +		     SPINAND_INFO_OP_VARIANTS(&quadio_read_cache_variants,
> +					      &x4_write_cache_variants,
> +					      &x4_update_cache_variants),
>  		     SPINAND_HAS_CR_FEAT_BIT,
> -		     SPINAND_ECCINFO(&micron_8_ooblayout,
> +		     SPINAND_ECCINFO(&micron_grouped_ooblayout,
>  				     micron_8_ecc_get_status),
>  		     SPINAND_SELECT_TARGET(micron_select_target)),
>  };

Thanks,
Miquèl

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