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+* AXD Audio Processing IP Binding *
+
+Required properties:
+- compatible: "img,axd"
+- clocks: phandle for the clock that drives AXD.
+- interrupts: the GIC interrupt where AXD is connected or software interrupt
+ 1 (not recommended).
+
+Optional properties:
+- gic-irq: it takes two non-zero values, the first one is the host hwirq and
+ the second one is axd's. Host's hwirq should match the value in
+ interrupts.
+ If not using GIC, then axd will revert to using software interrupt 1
+ which is a fallback mechanism for systems without GIC. It is
+ recommended to use GIC whenever possible. Some systems will only work
+ with GIC so this property will not be optional then.
+- vpe: VPE number on which axd should start. Must be provided if axd is
+ running as a single VPE along Linux on the same core.
+ It can't be VPE0.
+ The VPE must be offlined by Linux before axd is loaded.
+- inbuf-size: size of shared input buffers area. by default it's 0x7800 bytes.
+- outbuf-size: size of shared output buffers area. by default it's 0x3c000 bytes.
+
+
+Example:
+
+ axdclk: axdclk@400M {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <400000000>;
+ };
+
+ axd: axd@07800000 {
+ compatible = "img,axd";
+ clocks = <&axdclk>;
+ interrupts = <36 IRQ_TYPE_EDGE_RISING>
+ gic-irq = <36 37>;
+ vpe = <1>;
+ };
Add device tree support for AXD Audio Processing IP Signed-off-by: Qais Yousef <qais.yousef@imgtec.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: <devicetree@vger.kernel.org> Cc: <alsa-devel@alsa-project.org> --- Documentation/devicetree/bindings/axd.txt | 39 +++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/axd.txt