| Message ID | 1412093987-30241-5-git-send-email-boris.brezillon@free-electrons.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
>>>>> "Boris" == Boris Brezillon <boris.brezillon@free-electrons.com> writes: > Document DT bindings of Atmel's TRNG (True Random Number Generator) IP. > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> > --- > Documentation/devicetree/bindings/hwrng/atmel-trng.txt | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > create mode 100644 Documentation/devicetree/bindings/hwrng/atmel-trng.txt > diff --git a/Documentation/devicetree/bindings/hwrng/atmel-trng.txt b/Documentation/devicetree/bindings/hwrng/atmel-trng.txt > new file mode 100644 > index 0000000..4ac5aaa > --- /dev/null > +++ b/Documentation/devicetree/bindings/hwrng/atmel-trng.txt > @@ -0,0 +1,16 @@ > +Atmel TRNG (True Random Number Generator) block > + > +Required properties: > +- compatible : Should be "atmel,at91sam9g45-trng" > +- reg : Offset and length of the register set of this block > +- interrupts : the interrupt number for the TRNG block The interrupt isn't strictly speaking required as it isn't used by the driver, but as 9G45 has the signal wired up I guess it makes sense. Acked-by: Peter Korsgaard <peter@korsgaard.com>
Hi Peter, On Tue, 30 Sep 2014 19:12:22 +0200 Peter Korsgaard <peter@korsgaard.com> wrote: > >>>>> "Boris" == Boris Brezillon <boris.brezillon@free-electrons.com> writes: > > > Document DT bindings of Atmel's TRNG (True Random Number Generator) IP. > > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> > > --- > > Documentation/devicetree/bindings/hwrng/atmel-trng.txt | 16 ++++++++++++++++ > > 1 file changed, 16 insertions(+) > > create mode 100644 Documentation/devicetree/bindings/hwrng/atmel-trng.txt > > > diff --git a/Documentation/devicetree/bindings/hwrng/atmel-trng.txt b/Documentation/devicetree/bindings/hwrng/atmel-trng.txt > > new file mode 100644 > > index 0000000..4ac5aaa > > --- /dev/null > > +++ b/Documentation/devicetree/bindings/hwrng/atmel-trng.txt > > @@ -0,0 +1,16 @@ > > +Atmel TRNG (True Random Number Generator) block > > + > > +Required properties: > > +- compatible : Should be "atmel,at91sam9g45-trng" > > +- reg : Offset and length of the register set of this block > > +- interrupts : the interrupt number for the TRNG block > > The interrupt isn't strictly speaking required as it isn't used by the > driver, but as 9G45 has the signal wired up I guess it makes sense. This irq might be used in a near future (in order to wait for data as requested by hwrng code when the wait argument is true). Thus I prefer to keep it as required. Best Regards, Boris
>>>>> "Boris" == Boris Brezillon <boris.brezillon@free-electrons.com> writes: Hi, >> The interrupt isn't strictly speaking required as it isn't used by the >> driver, but as 9G45 has the signal wired up I guess it makes sense. > This irq might be used in a near future (in order to wait for data as > requested by hwrng code when the wait argument is true). > Thus I prefer to keep it as required. Ok, fine by me.
diff --git a/Documentation/devicetree/bindings/hwrng/atmel-trng.txt b/Documentation/devicetree/bindings/hwrng/atmel-trng.txt new file mode 100644 index 0000000..4ac5aaa --- /dev/null +++ b/Documentation/devicetree/bindings/hwrng/atmel-trng.txt @@ -0,0 +1,16 @@ +Atmel TRNG (True Random Number Generator) block + +Required properties: +- compatible : Should be "atmel,at91sam9g45-trng" +- reg : Offset and length of the register set of this block +- interrupts : the interrupt number for the TRNG block +- clocks: should contain the TRNG clk source + +Example: + +trng@fffcc000 { + compatible = "atmel,at91sam9g45-trng"; + reg = <0xfffcc000 0x4000>; + interrupts = <6 IRQ_TYPE_LEVEL_HIGH 0>; + clocks = <&trng_clk>; +};
Document DT bindings of Atmel's TRNG (True Random Number Generator) IP. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> --- Documentation/devicetree/bindings/hwrng/atmel-trng.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwrng/atmel-trng.txt