[PATCH 0/2] mtd: spi-nor: Fix Quad Enable method for MX25L12835F

Michael Walle michael at walle.cc
Tue Mar 1 04:36:58 PST 2022


Am 2022-03-01 11:52, schrieb Tudor.Ambarus at microchip.com:
> On 3/1/22 12:38, Michael Walle wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know 
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>> 
>> Am 2022-03-01 11:29, schrieb Heiko Thiery:
>>> Hi Tudor,
>>> 
>>> Am Di., 1. März 2022 um 10:56 Uhr schrieb Tudor Ambarus
>>> <tudor.ambarus at microchip.com>:
>>>> 
>>>> Hi, Heiko,
>>>> 
>>>> Would you please apply this patch set on top of:
>>>> https://lore.kernel.org/linux-mtd/20220228134505.203270-1-tudor.ambarus@microchip.com/
>>> 
>>> When applying that series the flash will be properly detected.
>>> 
>>> [    1.322655] spi-nor spi0.0: mx25l12835f (16384 Kbytes)
>>> 
>>> Thanks
>> 
>> But doesn't that mean that the previous series introduces
>> possible regressions for other flashes, too?
>> 
> no, because the other flashes are using the deprecated way of 
> initializing
> parameters which calls default_init() hooks.

ahh right!

But we should clear the quad_enable in the case the SFDP doesn't
specify it. Right now, we are falling back to a function
which doesn't make sense, and might even be harmful.

-michael



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