On 7/14/2020 3:03 AM, Rob Herring wrote: > On Sun, Jun 21, 2020 at 05:56:54PM +0300, Horia Geantă wrote: >> RNGB block is found in some i.MX6 SoCs - 6SL, 6SLL, 6ULL, 6ULZ. >> Add corresponding compatible strings. >> >> Note: >> >> Several NXP SoC from QorIQ family (P1010, P1023, P4080, P3041, P5020) >> also have a RNGB, however it's part of the CAAM >> (Cryptograhic Accelerator and Assurance Module) crypto accelerator. >> In this case, RNGB is managed in the caam driver >> (drivers/crypto/caam/), since it's tightly related to >> the caam "job ring" interface, not to mention CAAM internally relying on >> RNGB as source of randomness. >> >> On the other hand, the i.MX6 SoCs with RNGB have a DCP >> (Data Co-Processor) crypto accelerator and this block and RNGB >> are independent. >> >> Signed-off-by: Horia Geantă <horia.geanta@xxxxxxx> >> --- >> Documentation/devicetree/bindings/rng/imx-rng.txt | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/rng/imx-rng.txt b/Documentation/devicetree/bindings/rng/imx-rng.txt >> index 405c2b00ccb0..eb227db9e684 100644 >> --- a/Documentation/devicetree/bindings/rng/imx-rng.txt >> +++ b/Documentation/devicetree/bindings/rng/imx-rng.txt >> @@ -5,6 +5,9 @@ Required properties: >> "fsl,imx21-rnga" >> "fsl,imx31-rnga" (backward compatible with "fsl,imx21-rnga") >> "fsl,imx25-rngb" >> + "fsl,imx6sl-rngb" >> + "fsl,imx6sll-rngb" >> + "fsl,imx6ull-rngb" > > These are all different? IOW, no fallback compatible? > They are compatible with "fsl,imx25-rngb". I will clarify this in the binding in v3. Thanks, Horia
