On Sun, Aug 19, 2018 at 07:26:38PM +0530, Jagan Teki wrote: > Reset is an optional for some controllers with some families > of CPU's with same SoC where the common IP driver can handle > to drive the entire SoC families. optional reset get by name > is useful for those drivers to make common way of reset handling. > > Example, In Allwinner SoC with MMC controllers has no reset > for Sun4i, 5i, 7i but reset have reset.
So, in other words, it's not needed for the A10, A20 and A13, but needed for all the others. It's not optional then, it's useless in one case, and mandatory in the other. Maxime -- Maxime Ripard, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
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