Re: [PATCH] spi: bcm-qspi: check for valid cs before applying chip select

[Florian Fainelli <f.fainelli@xxxxxxxxx>]

On 1/27/2022 10:53 AM, Kamal Dasu wrote:
> Apply only valid chip select value. This change fixes case where chip
> select is set to initial value of '-1' during probe and  PM supend and
> subsequent resume can try to use the value with undefined behaviour.
> Also in case where gpio based chip select, the check in
> bcm_qspi_chip_select() shall prevent undefined behaviour on resume.
>
> Fixes: fa236a7ef240 ("spi: bcm-qspi: Add Broadcom MSPI driver")
> Signed-off-by: Kamal Dasu <kdasu.kdev@xxxxxxxxx>

Acked-by: Florian Fainelli <f.fainelli@xxxxxxxxx>

Thanks!
--
Florian