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2018-03-16dt-bindings: rng: Document Freescale i.MX21 and i.MX31 RNGA compatiblesVladimir Zapolskiy1-0/+20
Freescale i.MX21 and i.MX31 SoCs contain a Random Number Generator Accelerator module (RNGA), which is replaced by RNGB and RNGC modules on later i.MX SoC series, the change adds a new compatible property to describe the controller. Since all versions of Freescale RNG modules are legacy, apparently the documentation file has no more potential for further extensions, nevertheless generalize it by removing explicit RNGC specifics. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>