Re: [PATCH 01/11] dt-bindings: remoteproc: qcom: Add support for multipd model

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On 3/7/2023 7:56 PM, Rob Herring wrote:
On Tue, Mar 07, 2023 at 10:11:27AM +0530, Manikanta Mylavarapu wrote:
Add new binding document for multipd model remoteproc.
IPQ5018, IPQ9574 follows multipd model.

Signed-off-by: Manikanta Mylavarapu <quic_mmanikan@xxxxxxxxxxx>
---
  .../bindings/remoteproc/qcom,multipd-pil.yaml | 282 ++++++++++++++++++
  1 file changed, 282 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,multipd-pil.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,multipd-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,multipd-pil.yaml
new file mode 100644
index 000000000000..b788607f5abd
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,multipd-pil.yaml
@@ -0,0 +1,282 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,multipd-pil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Multipd Secure Peripheral Image Loader
+
+maintainers:
+  - Bjorn Andersson <andersson@xxxxxxxxxx>
+  - Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
+
+description:
+  Multipd Peripheral Image Loader loads firmware and boots Q6 pd, WCSS pd
+  remoteproc's on the Qualcomm IPQ5018, IPQ9574 SoC.

What is PD? I don't see it defined anywhere.

+
+properties:
+  compatible:
+    enum:
+      - qcom,ipq5018-q6-mpd
+      - qcom,ipq9574-q6-mpd
+
+  '#address-cells': true

Need to define the size.

+
+  '#size-cells': true

ditto

+
+  'ranges': true

Don't need quotes

+
+  reg:
+    maxItems: 1
+
+  interrupts-extended:

Just 'interrupts'. Both forms are always supported.

+    items:
+      - description: Watchdog interrupt
+      - description: Fatal interrupt
+      - description: Ready interrupt
+      - description: Handover interrupt
+      - description: Stop acknowledge interrupt
+
+  interrupt-names:
+    items:
+      - const: wdog
+      - const: fatal
+      - const: ready
+      - const: handover
+      - const: stop-ack
+
+  clocks:
+    minItems: 25
+    maxItems: 25

You need to list out what the clocks are.

+
+  clock-names:
+    minItems: 25
+    maxItems: 25
+
+  assigned-clocks:

You can drop this. Implicitly supported.

Clocks in multipd architecture will be handled by QDSP6 firmware.
So i am going to remove clock handling.

+    minItems: 13
+    maxItems: 13
+
+  assigned-clock-rates:
+    minItems: 13
+    maxItems: 13
+
+  qcom,smem-states:
+    $ref: /schemas/types.yaml#/definitions/phandle-array

I believe this already has a type. It should be defined in a common
schema if not already and then included in this schema.

+    description: States used by the AP to signal the remoteprocessor
+    items:
+      - description: Shutdown Q6
+      - description: Stop Q6
+
+  qcom,smem-state-names:
+    description:
+      Names of the states used by the AP to signal the remoteprocessor
+    items:
+      - const: shutdown
+      - const: stop
+
+  memory-region:
+    items:
+      - description: Q6 pd reserved region
+
+  glink-edge:
+    $ref: /schemas/remoteproc/qcom,glink-edge.yaml#
+    description:
+      Qualcomm G-Link subnode which represents communication edge, channels
+      and devices related to the Modem.
+
+patternProperties:
+  "^remoteproc_pd1|remoteproc_pd2|remoteproc_pd3":
+    type: object
+    description:
+      In Multipd model, WCSS pd depends on Q6 pd i.e Q6 pd should be up before
+      WCSS. It can be achieved by keeping wcss pd node as subnode of Q6
+      device node.
+
+    properties:
+      compatible:
+        enum:
+          - "qcom,ipq5018-wcss-ahb-mpd"

Don't need quotes.

+          - "qcom,ipq9574-wcss-ahb-mpd"
+          - "qcom,ipq5018-wcss-pcie-mpd"
+
+      interrupts-extended:

Just interrupts

+        items:
+          - description: Fatal interrupt
+          - description: Ready interrupt
+          - description: Spawn acknowledge interrupt
+          - description: Stop acknowledge interrupt
+
+      interrupt-names:
+        items:
+          - const: fatal
+          - const: ready
+          - const: spawn-ack
+          - const: stop-ack
+
+      qcom,smem-states:
+        $ref: /schemas/types.yaml#/definitions/phandle-array
+        description: States used by the AP to signal the remoteprocessor
+        items:
+          - description: Shutdown WCSS pd
+          - description: Stop WCSS pd
+          - description: Spawn WCSS pd
+
+      qcom,smem-state-names:
+        description:
+          Names of the states used by the AP to signal the remoteprocessor
+        items:
+          - const: shutdown
+          - const: stop
+          - const: spawn
+
+    required:
+      - compatible
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts-extended
+  - interrupt-names
+  - qcom,smem-states
+  - qcom,smem-state-names
+  - memory-region
+
+additionalProperties: false
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          enum:
+            - qcom,ipq9574-q6-mpd
+    then:
+      properties:
+        assigned-clocks:

Don't need to define assigned-clocks

Clocks in multipd architecture will be handled by QDSP6 firmware.
So i am going to remove clock handling.
+          items:
+            - description: Phandle, clock specifier of GCC_ANOC_WCSS_AXI_M_CLK
+            - description: Phandle, clock specifier of GCC_WCSS_AHB_S_CLK
+            - description: Phandle, clock specifier of GCC_WCSS_ECAHB_CLK
+            - description: Phandle, clock specifier of GCC_WCSS_ACMT_CLK
+            - description: Phandle, clock specifier of GCC_WCSS_AXI_M_CLK
+            - description: Phandle, clock specifier of GCC_Q6_AXIM_CLK
+            - description: Phandle, clock specifier of GCC_Q6_AXIM2_CLK
+            - description: Phandle, clock specifier of GCC_Q6_AHB_CLK
+            - description: Phandle, clock specifier of GCC_Q6_AHB_S_CLK
+            - description: Phandle, clock specifier of GCC_Q6SS_BOOT_CLK
+            - description: Phandle, clock specifier of GCC_MEM_NOC_Q6_AXI_CLK
+            - description: Phandle, clock specifier of GCC_WCSS_Q6_TBU_CLK
+            - description: Phandle, clock specifier of GCC_SYS_NOC_WCSS_AHB_CLK
+        assigned-clock-rates:
+          items:
+            - description: Must be 266666667 HZ
+            - description: Must be 133333333 HZ
+            - description: Must be 133333333 HZ
+            - description: Must be 133333333 HZ
+            - description: Must be 266666667 HZ
+            - description: Must be 533000000 HZ
+            - description: Must be 342857143 HZ
+            - description: Must be 133333333 HZ
+            - description: Must be 133333333 HZ
+            - description: Must be 342857143 HZ
+            - description: Must be 533000000 HZ
+            - description: Must be 533000000 HZ
+            - description: Must be 133333333 HZ
+
+examples:
+  - |
+        #include <dt-bindings/interrupt-controller/arm-gic.h>
+        #include <dt-bindings/clock/qcom,gcc-ipq5018.h>
+        #include <dt-bindings/reset/qcom,gcc-ipq5018.h>
+
+        q6v5_wcss: remoteproc@cd00000 {
+                compatible = "qcom,ipq5018-q6-mpd";
+                #address-cells = <1>;
+                #size-cells = <1>;
+                ranges;
+                reg = <0x0cd00000 0x4040>;
+                interrupts-extended = <&intc GIC_SPI 291 IRQ_TYPE_EDGE_RISING>,
+                                <&wcss_smp2p_in 0 0>,
+                                <&wcss_smp2p_in 1 0>,
+                                <&wcss_smp2p_in 2 0>,
+                                <&wcss_smp2p_in 3 0>;
+                interrupt-names = "wdog",
+                                  "fatal",
+                                  "ready",
+                                  "handover",
+                                  "stop-ack";
+
+                qcom,smem-states = <&wcss_smp2p_out 0>,
+                                   <&wcss_smp2p_out 1>;
+                qcom,smem-state-names = "shutdown",
+                                        "stop";
+
+                memory-region = <&q6_region>;
+
+                glink-edge {
+                        interrupts = <GIC_SPI 179 IRQ_TYPE_EDGE_RISING>;
+                        label = "rtr";
+                        qcom,remote-pid = <1>;
+                        mboxes = <&apcs_glb 8>;
+                };
+
+                q6_wcss_pd1: remoteproc_pd1 {
+                        compatible = "qcom,ipq5018-wcss-ahb-mpd";
+                        interrupts-extended = <&wcss_smp2p_in 8 0>,
+                                        <&wcss_smp2p_in 9 0>,
+                                        <&wcss_smp2p_in 12 0>,
+                                        <&wcss_smp2p_in 11 0>;
+                        interrupt-names = "fatal",
+                                          "ready",
+                                          "spawn-ack",
+                                          "stop-ack";
+                        qcom,smem-states = <&wcss_smp2p_out 8>,
+                                           <&wcss_smp2p_out 9>,
+                                           <&wcss_smp2p_out 10>;
+                        qcom,smem-state-names = "shutdown",
+                                                "stop",
+                                                "spawn";
+                };
+
+                q6_wcss_pd2: remoteproc_pd2 {
+                        compatible = "qcom,ipq5018-wcss-pcie-mpd";
+                        interrupts-extended = <&wcss_smp2p_in 16 0>,
+                                        <&wcss_smp2p_in 17 0>,
+                                        <&wcss_smp2p_in 20 0>,
+                                        <&wcss_smp2p_in 19 0>;
+                        interrupt-names = "fatal",
+                                          "ready",
+                                          "spawn-ack",
+                                          "stop-ack";
+
+                        qcom,smem-states = <&wcss_smp2p_out 16>,
+                                           <&wcss_smp2p_out 17>,
+                                           <&wcss_smp2p_out 18>;
+                        qcom,smem-state-names = "shutdown",
+                                                "stop",
+                                                "spawn";
+                        status = "okay";

Don't need status in examples.

+                };
+
+                q6_wcss_pd3: remoteproc_pd3 {
+                        compatible = "qcom,ipq5018-wcss-pcie-mpd";
+                        interrupts-extended = <&wcss_smp2p_in 24 0>,
+                                        <&wcss_smp2p_in 25 0>,
+                                        <&wcss_smp2p_in 28 0>,
+                                        <&wcss_smp2p_in 27 0>;
+                        interrupt-names = "fatal",
+                                          "ready",
+                                          "spawn-ack",
+                                          "stop-ack";
+
+                        qcom,smem-states = <&wcss_smp2p_out 24>,
+                                           <&wcss_smp2p_out 25>,
+                                           <&wcss_smp2p_out 26>;
+                        qcom,smem-state-names = "shutdown",
+                                                "stop",
+                                                "spawn";
+                        status = "okay";
+                };
+        };
--
2.34.1


Thanks & Regards,
Manikanta.



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