[riot-notifications] [RIOT-OS/RIOT] cpu/sam0_common/spi: move out pin muxing into spi_acquire / spi_release (#14107)

Juergen Fitschen notifications at github.com
Fri May 22 11:41:10 CEST 2020


> Now this is strange: with `tests/periph_spi` on master I see an idle current draw of 2.81 mA with both buses of the `samr21-xpro` initialized.
> 
> With this patch it's up to 2.86 mA

I've tried the same for the `samr30-xpro` board. Master and this PR both draw 2.63mA of current.

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