Re: [PATCH RFC 1/2] dt-bindings: interconnect: qcom: add msm8974 bindings
From: Bjorn Andersson
Date: Wed Sep 04 2019 - 01:01:09 EST
On Mon 02 Sep 14:19 PDT 2019, Brian Masney wrote:
> Add device tree bindings for the Qualcomm MSM8974 interconnect providers
> that support setting system bandwidth requirements between various
> network-on-chip fabrics.
>
> Signed-off-by: Brian Masney <masneyb@xxxxxxxxxxxxx>
> ---
> .../bindings/interconnect/qcom,msm8974.yaml | 163 ++++++++++++++++++
> .../dt-bindings/interconnect/qcom,msm8974.h | 146 ++++++++++++++++
> 2 files changed, 309 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml
> create mode 100644 include/dt-bindings/interconnect/qcom,msm8974.h
>
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml b/Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml
> new file mode 100644
> index 000000000000..fbf440f5ffe0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,msm8974.yaml
> @@ -0,0 +1,163 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/interconnect/qcom,msm8974.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm MSM8974 Network-On-Chip Interconnect
> +
> +maintainers:
> + - Brian Masney <masneyb@xxxxxxxxxxxxx>
> +
> +description: |
> + The Qualcomm MSM8974 interconnect providers support setting system
> + bandwidth requirements between various network-on-chip fabrics.
> +
> +properties:
> + reg:
> + maxItems: 1
> +
> + compatible:
> + enum:
> + - qcom,msm8974-bimc
> + - qcom,msm8974-cnoc
> + - qcom,msm8974-mmssnoc
> + - qcom,msm8974-ocmemnoc
> + - qcom,msm8974-pnoc
> + - qcom,msm8974-snoc
> +
> + '#interconnect-cells':
> + const: 1
> +
> + clock-names:
> + items:
> + - const: bus
> + - const: bus_a
> +
> + clocks:
> + items:
> + - description: Bus Clock
> + - description: Bus A Clock
> +
> +required:
> + - compatible
> + - reg
> + - '#interconnect-cells'
> + - clock-names
> + - clocks
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/clock/qcom,mmcc-msm8974.h>
> + #include <dt-bindings/clock/qcom,rpmcc.h>
> + #include <dt-bindings/interconnect/qcom,msm8974.h>
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + bimc: interconnect@fc380000 {
> + reg = <0xfc380000 0x6a000>;
> + compatible = "qcom,msm8974-bimc";
> + #interconnect-cells = <1>;
> + clock-names = "bus", "bus_a";
> + clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
> + <&rpmcc RPM_SMD_BIMC_A_CLK>;
> + };
> +
> + cnoc: interconnect@fc480000 {
> + reg = <0xfc480000 0x4000>;
> + compatible = "qcom,msm8974-cnoc";
> + #interconnect-cells = <1>;
> + clock-names = "bus", "bus_a";
> + clocks = <&rpmcc RPM_SMD_CNOC_CLK>,
> + <&rpmcc RPM_SMD_CNOC_A_CLK>;
> + };
> +
> + mmssnoc: interconnect@fc478000 {
> + reg = <0xfc478000 0x4000>;
> + compatible = "qcom,msm8974-mmssnoc";
> + #interconnect-cells = <1>;
> + clock-names = "bus", "bus_a";
> + clocks = <&rpmcc RPM_SMD_MMSSNOC_AHB_CLK>,
> + <&rpmcc RPM_SMD_MMSSNOC_AHB_A_CLK>;
Isn't MMSS_S0_AXI_CLK the bus clock of the mmssnoc (which somehow seems
to depend on mmssnoc_ahb_clk)?
> + };
> +
> + ocmemnoc: interconnect@fc470000 {
> + reg = <0xfc470000 0x4000>;
> + compatible = "qcom,msm8974-ocmemnoc";
> + #interconnect-cells = <1>;
> + clock-names = "bus", "bus_a";
> + clocks = <&rpmcc RPM_SMD_OCMEMGX_CLK>,
> + <&rpmcc RPM_SMD_OCMEMGX_A_CLK>;
> + };
> +
> + pnoc: interconnect@fc468000 {
> + reg = <0xfc468000 0x4000>;
> + compatible = "qcom,msm8974-pnoc";
> + #interconnect-cells = <1>;
> + clock-names = "bus", "bus_a";
> + clocks = <&rpmcc RPM_SMD_PNOC_CLK>,
> + <&rpmcc RPM_SMD_PNOC_A_CLK>;
> + };
> +
> + snoc: interconnect@fc460000 {
> + reg = <0xfc460000 0x4000>;
> + compatible = "qcom,msm8974-snoc";
> + #interconnect-cells = <1>;
> + clock-names = "bus", "bus_a";
> + clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
> + <&rpmcc RPM_SMD_SNOC_A_CLK>;
> + };
> +
> + mdss: mdss@fd900000 {
I think you can omit the client, as this adheres to the standard binding
for interconnect clients. And you don't need to have an example that
covers all compatibles either...
> + compatible = "qcom,mdss";
> + reg = <0xfd900000 0x100>, <0xfd924000 0x1000>;
> + reg-names = "mdss_phys", "vbif_phys";
> +
> + power-domains = <&mmcc MDSS_GDSC>;
> +
> + clocks = <&mmcc MDSS_AHB_CLK>,
> + <&mmcc MDSS_AXI_CLK>,
> + <&mmcc MDSS_VSYNC_CLK>;
> + clock-names = "iface", "bus", "vsync";
> +
> + interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
> +
> + interrupt-controller;
> + #interrupt-cells = <1>;
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges;
> +
> + mdp: mdp@fd900000 {
> + compatible = "qcom,mdp5";
> + reg = <0xfd900100 0x22000>;
> + reg-names = "mdp_phys";
> +
> + interrupt-parent = <&mdss>;
> + interrupts = <0 0>;
> +
> + clocks = <&mmcc MDSS_AHB_CLK>,
> + <&mmcc MDSS_AXI_CLK>,
> + <&mmcc MDSS_MDP_CLK>,
> + <&mmcc MDSS_VSYNC_CLK>;
> + clock-names = "iface", "bus", "core", "vsync";
> +
> + interconnects = <&mmssnoc MNOC_MAS_GRAPHICS_3D &bimc BIMC_SLV_EBI_CH0>,
> + <&ocmemnoc OCMEM_VNOC_MAS_GFX3D &ocmemnoc OCMEM_SLV_OCMEM>;
> + interconnect-names = "mdp0-mem", "mdp1-mem";
> +
> + ports {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {
> + reg = <0>;
> + mdp5_intf1_out: endpoint {
> + remote-endpoint = <&dsi0_in>;
> + };
> + };
> + };
> + };
> + };
> diff --git a/include/dt-bindings/interconnect/qcom,msm8974.h b/include/dt-bindings/interconnect/qcom,msm8974.h
> new file mode 100644
> index 000000000000..58acf7196410
> --- /dev/null
> +++ b/include/dt-bindings/interconnect/qcom,msm8974.h
> @@ -0,0 +1,146 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
Would you mind dual licensing this part as well?
Apart from that, I think this binding looks good.
Regards,
Bjorn
> +/*
> + * Qualcomm msm8974 interconnect IDs
> + *
> + * Copyright (c) 2019 Brian Masney <masneyb@xxxxxxxxxxxxx>
> + */
> +
> +#ifndef __DT_BINDINGS_INTERCONNECT_QCOM_MSM8974_H
> +#define __DT_BINDINGS_INTERCONNECT_QCOM_MSM8974_H
> +
> +#define BIMC_MAS_AMPSS_M0 0
> +#define BIMC_MAS_AMPSS_M1 1
> +#define BIMC_MAS_MSS_PROC 2
> +#define BIMC_TO_MNOC 3
> +#define BIMC_TO_SNOC 4
> +#define BIMC_SLV_EBI_CH0 5
> +#define BIMC_SLV_AMPSS_L2 6
> +
> +#define CNOC_MAS_RPM_INST 0
> +#define CNOC_MAS_RPM_DATA 1
> +#define CNOC_MAS_RPM_SYS 2
> +#define CNOC_MAS_DEHR 3
> +#define CNOC_MAS_QDSS_DAP 4
> +#define CNOC_MAS_SPDM 5
> +#define CNOC_MAS_TIC 6
> +#define CNOC_SLV_CLK_CTL 7
> +#define CNOC_SLV_CNOC_MSS 8
> +#define CNOC_SLV_SECURITY 9
> +#define CNOC_SLV_TCSR 10
> +#define CNOC_SLV_TLMM 11
> +#define CNOC_SLV_CRYPTO_0_CFG 12
> +#define CNOC_SLV_CRYPTO_1_CFG 13
> +#define CNOC_SLV_IMEM_CFG 14
> +#define CNOC_SLV_MESSAGE_RAM 15
> +#define CNOC_SLV_BIMC_CFG 16
> +#define CNOC_SLV_BOOT_ROM 17
> +#define CNOC_SLV_PMIC_ARB 18
> +#define CNOC_SLV_SPDM_WRAPPER 19
> +#define CNOC_SLV_DEHR_CFG 20
> +#define CNOC_SLV_MPM 21
> +#define CNOC_SLV_QDSS_CFG 22
> +#define CNOC_SLV_RBCPR_CFG 23
> +#define CNOC_SLV_RBCPR_QDSS_APU_CFG 24
> +#define CNOC_TO_SNOC 25
> +#define CNOC_SLV_CNOC_ONOC_CFG 26
> +#define CNOC_SLV_CNOC_MNOC_MMSS_CFG 27
> +#define CNOC_SLV_CNOC_MNOC_CFG 28
> +#define CNOC_SLV_PNOC_CFG 29
> +#define CNOC_SLV_SNOC_MPU_CFG 30
> +#define CNOC_SLV_SNOC_CFG 31
> +#define CNOC_SLV_EBI1_DLL_CFG 32
> +#define CNOC_SLV_PHY_APU_CFG 33
> +#define CNOC_SLV_EBI1_PHY_CFG 34
> +#define CNOC_SLV_RPM 35
> +#define CNOC_SLV_SERVICE_CNOC 36
> +
> +#define MNOC_MAS_GRAPHICS_3D 0
> +#define MNOC_MAS_JPEG 1
> +#define MNOC_MAS_MDP_PORT0 2
> +#define MNOC_MAS_VIDEO_P0 3
> +#define MNOC_MAS_VIDEO_P1 4
> +#define MNOC_MAS_VFE 5
> +#define MNOC_TO_CNOC 6
> +#define MNOC_TO_BIMC 7
> +#define MNOC_SLV_CAMERA_CFG 8
> +#define MNOC_SLV_DISPLAY_CFG 9
> +#define MNOC_SLV_OCMEM_CFG 10
> +#define MNOC_SLV_CPR_CFG 11
> +#define MNOC_SLV_CPR_XPU_CFG 12
> +#define MNOC_SLV_MISC_CFG 13
> +#define MNOC_SLV_MISC_XPU_CFG 14
> +#define MNOC_SLV_VENUS_CFG 15
> +#define MNOC_SLV_GRAPHICS_3D_CFG 16
> +#define MNOC_SLV_MMSS_CLK_CFG 17
> +#define MNOC_SLV_MMSS_CLK_XPU_CFG 18
> +#define MNOC_SLV_MNOC_MPU_CFG 19
> +#define MNOC_SLV_ONOC_MPU_CFG 20
> +#define MNOC_SLV_SERVICE_MNOC 21
> +
> +#define OCMEM_NOC_TO_OCMEM_VNOC 0
> +#define OCMEM_MAS_JPEG_OCMEM 1
> +#define OCMEM_MAS_MDP_OCMEM 2
> +#define OCMEM_MAS_VIDEO_P0_OCMEM 3
> +#define OCMEM_MAS_VIDEO_P1_OCMEM 4
> +#define OCMEM_MAS_VFE_OCMEM 5
> +#define OCMEM_MAS_CNOC_ONOC_CFG 6
> +#define OCMEM_SLV_SERVICE_ONOC 7
> +#define OCMEM_VNOC_TO_SNOC 8
> +#define OCMEM_VNOC_TO_OCMEM_NOC 9
> +#define OCMEM_VNOC_MAS_GFX3D 10
> +#define OCMEM_SLV_OCMEM 11
> +
> +#define PNOC_MAS_PNOC_CFG 0
> +#define PNOC_MAS_SDCC_1 1
> +#define PNOC_MAS_SDCC_3 2
> +#define PNOC_MAS_SDCC_4 3
> +#define PNOC_MAS_SDCC_2 4
> +#define PNOC_MAS_TSIF 5
> +#define PNOC_MAS_BAM_DMA 6
> +#define PNOC_MAS_BLSP_2 7
> +#define PNOC_MAS_USB_HSIC 8
> +#define PNOC_MAS_BLSP_1 9
> +#define PNOC_MAS_USB_HS 10
> +#define PNOC_TO_SNOC 11
> +#define PNOC_SLV_SDCC_1 12
> +#define PNOC_SLV_SDCC_3 13
> +#define PNOC_SLV_SDCC_2 14
> +#define PNOC_SLV_SDCC_4 15
> +#define PNOC_SLV_TSIF 16
> +#define PNOC_SLV_BAM_DMA 17
> +#define PNOC_SLV_BLSP_2 18
> +#define PNOC_SLV_USB_HSIC 19
> +#define PNOC_SLV_BLSP_1 20
> +#define PNOC_SLV_USB_HS 21
> +#define PNOC_SLV_PDM 22
> +#define PNOC_SLV_PERIPH_APU_CFG 23
> +#define PNOC_SLV_PNOC_MPU_CFG 24
> +#define PNOC_SLV_PRNG 25
> +#define PNOC_SLV_SERVICE_PNOC 26
> +
> +#define SNOC_MAS_LPASS_AHB 0
> +#define SNOC_MAS_QDSS_BAM 1
> +#define SNOC_MAS_SNOC_CFG 2
> +#define SNOC_TO_BIMC 3
> +#define SNOC_TO_CNOC 4
> +#define SNOC_TO_PNOC 5
> +#define SNOC_TO_OCMEM_VNOC 6
> +#define SNOC_MAS_CRYPTO_CORE0 7
> +#define SNOC_MAS_CRYPTO_CORE1 8
> +#define SNOC_MAS_LPASS_PROC 9
> +#define SNOC_MAS_MSS 10
> +#define SNOC_MAS_MSS_NAV 11
> +#define SNOC_MAS_OCMEM_DMA 12
> +#define SNOC_MAS_WCSS 13
> +#define SNOC_MAS_QDSS_ETR 14
> +#define SNOC_MAS_USB3 15
> +#define SNOC_SLV_AMPSS 16
> +#define SNOC_SLV_LPASS 17
> +#define SNOC_SLV_USB3 18
> +#define SNOC_SLV_WCSS 19
> +#define SNOC_SLV_OCIMEM 20
> +#define SNOC_SLV_SNOC_OCMEM 21
> +#define SNOC_SLV_SERVICE_SNOC 22
> +#define SNOC_SLV_QDSS_STM 23
> +
> +#endif
> --
> 2.21.0
>