[riot-notifications] [RIOT-OS/RIOT] drivers/periph: add doc on power management aspects (#6563)

Sebastian Meiling notifications at github.com
Mon Sep 30 14:28:53 CEST 2019

smlng requested changes on this pull request.

other than, looks good to me

> @@ -43,6 +43,19 @@
  *    configures the bus with specific parameters (clock, mode) for the duration
  *    of that transaction.
+ * # (Low-) Power Implications
+ *
+ * As SPI buses are shared peripherals and the interfaces implements a
+ * transaction based paradigm, we leverage this for the SPI peripherals power
+ * management. After calling spi_init(), the SPI peripheral **should** be
+ * completely powered off (e.g. through peripheral clock gating). It **should**
+ * subsequently only be power on and enabled in between spi_acquire() and

minor-typo: /power/powered/

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