Re: [PATCH] mtd: spi-nor: micron-st: fix FSR read fallback for controllers returning -ENOTSUPP
From: Tudor Ambarus
Date: Wed Mar 18 2026 - 09:26:39 EST
Hi, Bean!
On 3/18/26 3:18 PM, Bean Huo wrote:
> From: Bean Huo <beanhuo@xxxxxxxxxx>
>
> micron_st_nor_ready() falls back to SR-only polling when the SPI
> controller does not support low-level FSR reads, but only checks for
> -EOPNOTSUPP (95). Some SPI master drivers return the kernel-internal
> -ENOTSUPP (524) for the same condition. The two codes carry identical
Isn't it a better fix to update the spi controllers to use EOPNOTSUPP?