linux-kernel - Re: [PATCH v2 2/2] spi-nor: add support for is25wp256

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Message-ID: <92a75f0c-372f-df8e-f99d-264217046f55@microchip.com>
Date:   Wed, 13 Feb 2019 17:37:49 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <palmer@...ive.com>, <marek.vasut@...il.com>
CC:     <wesley@...ive.com>, <richard@....at>,
        <linux-kernel@...r.kernel.org>, <bbrezillon@...nel.org>,
        <linux-mtd@...ts.infradead.org>, <paul.walmsley@...ive.com>,
        <computersforpeace@...il.com>, <dwmw2@...radead.org>
Subject: Re: [PATCH v2 2/2] spi-nor: add support for is25wp256



On 02/13/2019 07:27 PM, Tudor.Ambarus@...rochip.com wrote:
> Hi,
> 
> This one looks pretty good. You'll have to start the patch's subject with "mtd:
> spi-nor:" instead of just "spi-nor".
> 
> When in doubt, run git log --oneline on the file that you are modifying and see
> how previous patches are prefixing the subject.
> 
> On 08/07/2018 10:40 PM, Palmer Dabbelt wrote:
>> From: "Wesley W. Terpstra" <wesley@...ive.com>
>>
>> This is used of the HiFive Unleashed development board, and follows the
>> pattern of similar ISSI devices already listed.
>>
> Please add a comment and let us know how you tested the flash, it's always
> comfortable to see that new support was actually tested.
> 
>> Signed-off-by: Wesley W. Terpstra <wesley@...ive.com>
>> Signed-off-by: Palmer Dabbelt <palmer@...ive.com>
>> ---
>>  drivers/mtd/spi-nor/spi-nor.c | 2 ++
>>  1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
>> index aab93463a5e7..f10017b4543d 100644
>> --- a/drivers/mtd/spi-nor/spi-nor.c
>> +++ b/drivers/mtd/spi-nor/spi-nor.c
>> @@ -1072,6 +1072,8 @@ static const struct flash_info spi_nor_ids[] = {
>>  			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>>  	{ "is25wp128",  INFO(0x9d7018, 0, 64 * 1024, 256,
>>  			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
>> +	{ "is25wp256",  INFO(0x9d7019, 0, 64 * 1024, 512,
>> +	                SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },

don't forget to fix the checkpatch warning when resubmitting:
$ ./scripts/checkpatch.pl --strict v2-2-2-spi-nor-add-support-for-is25wp256.patch 
ERROR: code indent should use tabs where possible
#40: FILE: drivers/mtd/spi-nor/spi-nor.c:1076:
+^I                SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },$

total: 1 errors, 0 warnings, 0 checks, 8 lines checked
> 
> You missed the SPI_NOR_4B_OPCODES flag. The flash has 4B opcodes, let's use them.
> 
> Cheers,
> ta
>