This describes the mt8195 DSP device tree node.
Signed-off-by: YC Hung <yc.hung@mediatek.com>
---
.../bindings/dsp/mtk,mt8195-dsp.yaml | 139 ++++++++++++++++++
1 file changed, 139 insertions(+)
create mode 100644 Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml
diff --git a/Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml b/Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml
new file mode 100644
index 000000000000..f113f71ca094
--- /dev/null
+++ b/Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml
@@ -0,0 +1,139 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dsp/mtk,mt8195-dsp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek mt8195 DSP core
+
+maintainers:
+ - YC Hung <yc.hung@mediatek.com>
+
+description: |
+ Some boards from mt8195 contain a DSP core used for
+ advanced pre- and post- audio processing.
+properties:
+ compatible:
+ const: mediatek,mt8195-dsp
+
+ reg:
+ maxItems: 2
+
+ reg-names:
+ maxItems: 2
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: mux for audio dsp clock
+ - description: 26M clock
+ - description: mux for audio dsp local bus
+ - description: default audio dsp local bus clock source
+ - description: clock gate for audio dsp clock
+ - description: mux for audio dsp access external bus
+
+ clock-names:
+ items:
+ - const: adsp_sel
+ - const: clk26m_ck
+ - const: audio_local_bus
+ - const: mainpll_d7_d2
+ - const: scp_adsp_audiodsp
+ - const: audio_h
+
+ power-domains:
+ maxItems: 1
+
+ mboxes:
+ maxItems: 2
+
+ mbox-names:
+ description:
+ Specifies the mailboxes used to communicate with audio DSP
+ items:
+ - const: mbox0
+ - const: mbox1
+
+ memory-region:
+ description:
+ phandle to a node describing reserved memory (System RAM memory)
+ used by DSP (see bindings/reserved-memory/reserved-memory.txt)
+ maxItems: 2
+
+ sound:
+ description:
+ Sound subnode includes ASoC platform, DPTx codec node, and
+ HDMI codec node.
+
+ type: object
+
+ properties:
+ mediatek,platform:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of MT8195 ASoC platform.
+
+ mediatek,dptx-codec:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of MT8195 Display Port Tx codec node.
+
+ mediatek,hdmi-codec:
+ $ref: "/schemas/types.yaml#/definitions/phandle"
+ description: The phandle of MT8195 HDMI codec node.
+
+required:
+ - compatible
+ - reg
+ - reg-names
+ - interrupts
+ - interrupt-names
+ - clocks
+ - clock-names
+ - memory-region
+ - power-domains
+ - mbox-names
+ - mboxes
+ - sound
+
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ adsp: adsp@10803000 {
+ compatible = "mediatek,mt8195-dsp";
+ reg = <0x10803000 0x1000>,
+ <0x10840000 0x40000>;
+ reg-names = "cfg", "sram";
+ interrupts = <GIC_SPI 694 IRQ_TYPE_LEVEL_HIGH 0>;
+ interrupt-names = "wdt";
+ clocks = <&topckgen 10>, //CLK_TOP_ADSP
+ <&clk26m>,
+ <&topckgen 107>, //CLK_TOP_AUDIO_LOCAL_BUS
+ <&topckgen 136>, //CLK_TOP_MAINPLL_D7_D2
+ <&scp_adsp 0>, //CLK_SCP_ADSP_AUDIODSP
+ <&topckgen 34>; //CLK_TOP_AUDIO_H
+ clock-names = "adsp_sel",
+ "clk26m_ck",
+ "audio_local_bus",
+ "mainpll_d7_d2",
+ "scp_adsp_audiodsp",
+ "audio_h";
+ memory-region = <&adsp_dma_mem_reserved>,
+ <&adsp_mem_reserved>;
+ power-domains = <&spm 6>; //MT8195_POWER_DOMAIN_ADSP
+ mbox-names = "mbox0", "mbox1";
+ mboxes = <&adsp_mailbox 0>, <&adsp_mailbox 1>;
+ status = "disabled";
+ sound {
+ mediatek,dptx-codec = <&dp_tx>;
+ mediatek,hdmi-codec = <&hdmi0>;
+ mediatek,platform = <&afe>;
+ };
+ };
--
2.18.0
On Thu, Oct 28, 2021 at 09:57:37PM +0800, YC Hung wrote: > This describes the mt8195 DSP device tree node. > > Signed-off-by: YC Hung <yc.hung@mediatek.com> > --- > .../bindings/dsp/mtk,mt8195-dsp.yaml | 139 ++++++++++++++++++ > 1 file changed, 139 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml > > diff --git a/Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml b/Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml > new file mode 100644 > index 000000000000..f113f71ca094 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dsp/mtk,mt8195-dsp.yaml > @@ -0,0 +1,139 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/dsp/mtk,mt8195-dsp.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Mediatek mt8195 DSP core > + > +maintainers: > + - YC Hung <yc.hung@mediatek.com> > + > +description: | > + Some boards from mt8195 contain a DSP core used for > + advanced pre- and post- audio processing. > +properties: > + compatible: > + const: mediatek,mt8195-dsp > + > + reg: > + maxItems: 2 > + > + reg-names: > + maxItems: 2 Need to define what each entry is and the names for them. > + > + interrupts: > + maxItems: 1 > + > + interrupt-names: > + maxItems: 1 Need to define the name. Though -names with 1 entry is not that useful. > + > + clocks: > + items: > + - description: mux for audio dsp clock > + - description: 26M clock > + - description: mux for audio dsp local bus > + - description: default audio dsp local bus clock source > + - description: clock gate for audio dsp clock > + - description: mux for audio dsp access external bus > + > + clock-names: > + items: > + - const: adsp_sel > + - const: clk26m_ck > + - const: audio_local_bus > + - const: mainpll_d7_d2 > + - const: scp_adsp_audiodsp > + - const: audio_h > + > + power-domains: > + maxItems: 1 > + > + mboxes: > + maxItems: 2 > + > + mbox-names: > + description: > + Specifies the mailboxes used to communicate with audio DSP > + items: > + - const: mbox0 > + - const: mbox1 Is there not a specific function for each mailbox? You already have an index implicitly. > + > + memory-region: > + description: > + phandle to a node describing reserved memory (System RAM memory) > + used by DSP (see bindings/reserved-memory/reserved-memory.txt) > + maxItems: 2 1 phandle or 2? If 2, what is each one for? > + > + sound: > + description: > + Sound subnode includes ASoC platform, DPTx codec node, and > + HDMI codec node. > + > + type: object additionalProperties: false Though why do you need a child node here in the first place? > + > + properties: > + mediatek,platform: > + $ref: "/schemas/types.yaml#/definitions/phandle" > + description: The phandle of MT8195 ASoC platform. > + > + mediatek,dptx-codec: > + $ref: "/schemas/types.yaml#/definitions/phandle" > + description: The phandle of MT8195 Display Port Tx codec node. > + > + mediatek,hdmi-codec: > + $ref: "/schemas/types.yaml#/definitions/phandle" > + description: The phandle of MT8195 HDMI codec node. > + > +required: > + - compatible > + - reg > + - reg-names > + - interrupts > + - interrupt-names > + - clocks > + - clock-names > + - memory-region > + - power-domains > + - mbox-names > + - mboxes > + - sound > + > + Extra blank line. > +additionalProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/arm-gic.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + adsp: adsp@10803000 { dsp@... > + compatible = "mediatek,mt8195-dsp"; > + reg = <0x10803000 0x1000>, > + <0x10840000 0x40000>; > + reg-names = "cfg", "sram"; > + interrupts = <GIC_SPI 694 IRQ_TYPE_LEVEL_HIGH 0>; > + interrupt-names = "wdt"; > + clocks = <&topckgen 10>, //CLK_TOP_ADSP > + <&clk26m>, > + <&topckgen 107>, //CLK_TOP_AUDIO_LOCAL_BUS > + <&topckgen 136>, //CLK_TOP_MAINPLL_D7_D2 > + <&scp_adsp 0>, //CLK_SCP_ADSP_AUDIODSP > + <&topckgen 34>; //CLK_TOP_AUDIO_H > + clock-names = "adsp_sel", > + "clk26m_ck", > + "audio_local_bus", > + "mainpll_d7_d2", > + "scp_adsp_audiodsp", > + "audio_h"; > + memory-region = <&adsp_dma_mem_reserved>, > + <&adsp_mem_reserved>; > + power-domains = <&spm 6>; //MT8195_POWER_DOMAIN_ADSP > + mbox-names = "mbox0", "mbox1"; > + mboxes = <&adsp_mailbox 0>, <&adsp_mailbox 1>; > + status = "disabled"; Don't disable your example. Drop status. > + sound { > + mediatek,dptx-codec = <&dp_tx>; > + mediatek,hdmi-codec = <&hdmi0>; > + mediatek,platform = <&afe>; > + }; > + }; > -- > 2.18.0 > >
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