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Message-ID: <mafs0cy8aw0yf.fsf@kernel.org>
Date: Mon, 01 Sep 2025 19:13:12 +0200
From: Pratyush Yadav <pratyush@...nel.org>
To: Flaviu Nistor <flaviu.nistor@...il.com>
Cc: Tudor Ambarus <tudor.ambarus@...aro.org>, Pratyush Yadav
<pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>, Miquel Raynal
<miquel.raynal@...tlin.com>, Richard Weinberger <richard@....at>,
Vignesh Raghavendra <vigneshr@...com>, linux-mtd@...ts.infradead.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: spi-nor: issi: Add support for is25wx01g
Hi Flaviu,
On Mon, Sep 01 2025, Flaviu Nistor wrote:
> Add support for the IS25WX01G 128MB (1Gb) ISSI Serial Flash Memory.
>
> Signed-off-by: Flaviu Nistor <flaviu.nistor@...il.com>
> ---
> drivers/mtd/spi-nor/issi.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mtd/spi-nor/issi.c b/drivers/mtd/spi-nor/issi.c
> index 18d9a00aa22e..e4997f9bd557 100644
> --- a/drivers/mtd/spi-nor/issi.c
> +++ b/drivers/mtd/spi-nor/issi.c
> @@ -126,6 +126,9 @@ static const struct flash_info issi_nor_parts[] = {
> .flags = SPI_NOR_QUAD_PP,
> .fixups = &is25lp256_fixups,
> .fixup_flags = SPI_NOR_4B_OPCODES,
> + }, {
> + /* IS25WX01G */
> + .id = SNOR_ID(0x9d, 0x5b, 0x1b),
It seems the flash needs no special configuration. IIUC it can be driven
entirely based on SFDP data. In that case, I don't think there is a need
for an entry at all. The generic SFDP-based driver should already be
enough for your flash. Just add a "jedec,spi-nor" node to your DT and it
should work.
> }
> };
--
Regards,
Pratyush Yadav
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