Re: [PATCH v2] dt-bindings: dsp: mediatek: add mt8195 dsp document

On Fri, Dec 17, 2021 at 03:08:36PM +0800, YC Hung wrote:

From: "yc.hung" yc.hung@mediatek.com

Should be 'YC Hung'?

This patch adds mt8195 dsp document.

Signed-off-by: yc.hung yc.hung@mediatek.com

Changes since v1: Rename yaml file name as mediatek,mt8195-dsp.yaml Refine descriptions for mailbox, memory-region and drop unused labels in examples.

---

.../bindings/dsp/mediatek,mt8195-dsp.yaml | 117 ++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml

diff --git a/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml b/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml new file mode 100644 index 000000000000..bde763191d86 --- /dev/null +++ b/Documentation/devicetree/bindings/dsp/mediatek,mt8195-dsp.yaml @@ -0,0 +1,117 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/dsp/mediatek,mt8195-dsp.yaml# +$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:
• items:

•  - description: Address and size of the DSP Cfg registers
  

•  - description: Address and size of the DSP SRAM
  

• reg-names:
• items:

•  - const: cfg
  

•  - const: sram
  

• interrupts:
• items:

•  - description: watchdog interrupt
  

• interrupt-names:
• items:

•  - const: wdt
  

• 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:
• items:

•  - description: ipc reply between host and audio DSP.
  

•  - description: ipc reuqest between host and audio DSP.
  

• mbox-names:
• items:

•  - const: mbox0
  

•  - const: mbox1
  

• memory-region:
• items:

•  - description: dma buffer between host and DSP.   
  

•  - description: DSP system memory.
  

+required:

• • compatible
• • reg
• • reg-names
• • interrupts
• • interrupt-names
• • clocks
• • clock-names
• • memory-region
• • power-domains
• • mbox-names
• • mboxes

+additionalProperties: false

+examples:

• • |
• #include <dt-bindings/interrupt-controller/arm-gic.h>
• #include <dt-bindings/interrupt-controller/irq.h>
• dsp@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_mailbox0>, <&adsp_mailbox1>;
  

• };

-- 2.18.0