linux-kernel - Re: [PATCH 1/4] Add generic functions for accessing the SPI-NOR chip.

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Date: Fri, 28 Jun 2024 15:39:51 +0100
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Erez Geva <erezgeva@...ime.org>, linux-mtd@...ts.infradead.org,
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>
Cc: linux-kernel@...r.kernel.org, Miquel Raynal <miquel.raynal@...tlin.com>,
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>,
 devicetree@...r.kernel.org, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Erez Geva <ErezGeva2@...il.com>
Subject: Re: [PATCH 1/4] Add generic functions for accessing the SPI-NOR chip.

Hi, Erez,

On 6/28/24 3:03 PM, Erez Geva wrote:
> From: Erez Geva <ErezGeva2@...il.com>
> 
> Functions:
> 
>  - Send a opcode
> 
>  - Read a register
> 
>  - Write a register
> 

Please describe your changes. You may want to re-read:

https://www.kernel.org/doc/html/latest/process/submitting-patches.html#submitting-patches-the-essential-guide-to-getting-your-code-into-the-kernel

> Signed-off-by: Erez Geva <ErezGeva2@...il.com>
> ---
>  drivers/mtd/spi-nor/core.c | 130 +++++++++++++++++++++++++++----------
>  drivers/mtd/spi-nor/core.h |  27 +-------
>  2 files changed, 99 insertions(+), 58 deletions(-)
> 
> diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
> index 028514c6996f..0f267da339a4 100644
> --- a/drivers/mtd/spi-nor/core.c
> +++ b/drivers/mtd/spi-nor/core.c
> @@ -354,53 +354,134 @@ int spi_nor_write_any_volatile_reg(struct spi_nor *nor, struct spi_mem_op *op,
>  }
>  
>  /**
> - * spi_nor_write_enable() - Set write enable latch with Write Enable command.
> + * _nor_send_cmd() - Send instruction without address or data to the chip.
>   * @nor:	pointer to 'struct spi_nor'.
> + * @opcode:	Command to send
>   *
>   * Return: 0 on success, -errno otherwise.
>   */
> -int spi_nor_write_enable(struct spi_nor *nor)
> +static inline int _nor_send_cmd(struct spi_nor *nor, u8 opcode)

and my review stops here. Why did you think it is good to introduce a
_nor* method and not an spi_nor* one?

I'm not going to review the rest of the patches. Please send a v2 that
convinces me to spend more than 2 minutes on it.

Cheers,
ta