On Tue, Jul 23, 2019 at 2:41 AM Daniel Baluta <daniel.baluta@xxxxxxx> wrote: > > This describes the DSP device tree node. > > Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxx> > --- > .../devicetree/bindings/dsp/fsl,dsp.yaml | 87 +++++++++++++++++++ > 1 file changed, 87 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dsp/fsl,dsp.yaml > > diff --git a/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml > new file mode 100644 > index 000000000000..d112486eda0e > --- /dev/null > +++ b/Documentation/devicetree/bindings/dsp/fsl,dsp.yaml > @@ -0,0 +1,87 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/arm/freescale/fsl,dsp.yaml# This needs updating to match the path. > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: NXP i.MX8 DSP core > + > +maintainers: > + - Daniel Baluta <daniel.baluta@xxxxxxx> > + > +description: | > + Some boards from i.MX8 family contain a DSP core used for > + advanced pre- and post- audio processing. > + > +properties: > + compatible: > + enum: > + - fsl,imx8qxp-dsp > + > + reg: > + description: Should contain register location and length > + > + clocks: > + items: > + - description: ipg clock > + - description: ocram clock > + - description: core clock > + > + clock-names: > + items: > + - const: ipg > + - const: ocram > + - const: core > + > + power-domains: > + description: > + List of phandle and PM domain specifier as documented in > + Documentation/devicetree/bindings/power/power_domain.txt > + maxItems: 4 Need a blank line here. With those 2 fixes: Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > + mboxes: > + description: > + List of <&phandle type channel> - 2 channels for TXDB, 2 channels for RXDB > + (see mailbox/fsl,mu.txt) > + maxItems: 4 > + > + mbox-names: > + items: > + - const: txdb0 > + - const: txdb1 > + - const: rxdb0 > + - const: rxdb1 > + > + memory-region: > + description: > + phandle to a node describing reserved memory (System RAM memory) > + used by DSP (see bindings/reserved-memory/reserved-memory.txt) > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + - power-domains > + - mboxes > + - mbox-names > + - memory-region > + > +examples: > + - | > + #include <dt-bindings/firmware/imx/rsrc.h> > + #include <dt-bindings/clock/imx8-clock.h> > + dsp@596e8000 { > + compatbile = "fsl,imx8qxp-dsp"; > + reg = <0x596e8000 0x88000>; > + clocks = <&adma_lpcg IMX_ADMA_LPCG_DSP_IPG_CLK>, > + <&adma_lpcg IMX_ADMA_LPCG_OCRAM_IPG_CLK>, > + <&adma_lpcg IMX_ADMA_LPCG_DSP_CORE_CLK>; > + clock-names = "ipg", "ocram", "core"; > + power-domains = <&pd IMX_SC_R_MU_13A>, > + <&pd IMX_SC_R_MU_13B>, > + <&pd IMX_SC_R_DSP>, > + <&pd IMX_SC_R_DSP_RAM>; > + mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1"; > + mboxes = <&lsio_mu13 2 0>, <&lsio_mu13 2 1>, <&lsio_mu13 3 0>, <&lsio_mu13 3 1>; > + }; > -- > 2.17.1 >
