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Date: Fri, 28 Apr 2017 10:18:48 +0200
From: Sascha Hauer <s.hauer@pengutronix.de>
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Subject: Re: [PATCH] mtd: m25p80: make it possible to use 4K erase block
To: Antony Pavlov <antonynpavlov@gmail.com>
Cc: barebox@lists.infradead.org

On Wed, Apr 26, 2017 at 05:17:34PM +0300, Antony Pavlov wrote:
> We already have the MTD_SPI_NOR_USE_4K_SECTORS option handling in C code
> for 4K erase block support. Alas this 4K erase block support code
> can't be used because the MTD_SPI_NOR_USE_4K_SECTORS option support
> is missed in Kconfig.
> 
> This patch imports necessary Kconfig MTD_SPI_NOR_USE_4K_SECTORS option
> declaration from linux v4.11-rc8.
> 
> Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
> ---
>  drivers/mtd/spi-nor/Kconfig | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
> index a84591fdd1..8ede3c90be 100644
> --- a/drivers/mtd/spi-nor/Kconfig
> +++ b/drivers/mtd/spi-nor/Kconfig
> @@ -7,6 +7,20 @@ menuconfig MTD_SPI_NOR
>  
>  if MTD_SPI_NOR
>  
> +config MTD_SPI_NOR_USE_4K_SECTORS
> +	bool "Use small 4096 B erase sectors"
> +	default y

This changes the default which breaks existing UBI users. Can you drop
this?

Sascha

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