Re: [PATCH v8 1/7] dt-bindings: remoteproc: qcom: Add SC7280 ADSP support

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On 9/23/2022 10:53 PM, Krzysztof Kozlowski wrote:
Thanks for Your time Krzyszto!!!
On 23/09/2022 15:05, Srinivasa Rao Mandadapu wrote:
Add ADSP PIL loading support for SC7280 SoCs.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
---
Changes since V7:
	-- Remove redundant clocks in dt bindings.
	-- Fix dt compilation error in dt bindings.
Changes since V6:
	-- Update glink-edge property.
	-- Add qcom,qmp property.
Changes since V5:
	-- Remove qcom,adsp-memory-regions property.
Changes since V4:
	-- Update halt registers description in dt bindings.

  .../bindings/remoteproc/qcom,sc7280-adsp-pil.yaml  | 207 +++++++++++++++++++++
  1 file changed, 207 insertions(+)
  create mode 100644 Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml
new file mode 100644
index 0000000..79ef3c0
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7280-adsp-pil.yaml
@@ -0,0 +1,207 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,sc7280-adsp-pil.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SC7280 ADSP Peripheral Image Loader
+
+maintainers:
+  - Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
+
+description:
+  This document describes the hardware for a component that loads and boots firmware
+  on the Qualcomm Technology Inc. ADSP.
+
+properties:
+  compatible:
+    enum:
+      - qcom,sc7280-adsp-pil
+
+  reg:
+    minItems: 1
+    items:
+      - description: qdsp6ss register
+      - description: efuse q6ss register
Why second IO address space is optional?
Yeah, both are required for SC7280. will remove minItems.

+
+  interrupts:
+    items:
+      - description: Watchdog interrupt
+      - description: Fatal interrupt
+      - description: Ready interrupt
+      - description: Handover interrupt
+      - description: Stop acknowledge interrupt
+      - description: Shutdown acknowledge interrupt
+
+  interrupt-names:
+    items:
+      - const: wdog
+      - const: fatal
+      - const: ready
+      - const: handover
+      - const: stop-ack
+      - const: shutdown-ack
+
+  clocks:
+    items:
+      - description: XO clock
+      - description: GCC CFG NOC LPASS clock
+
+  clock-names:
+    items:
+      - const: xo
+      - const: gcc_cfg_noc_lpass
+
+  power-domains:
+    items:
+      - description: LCX power domain
+
+  resets:
+    items:
+      - description: PDC AUDIO SYNC RESET
+      - description: CC LPASS restart
+
+  reset-names:
+    items:
+      - const: pdc_sync
+      - const: cc_lpass
+
+  memory-region:
+    maxItems: 1
+    description: Reference to the reserved-memory for the Hexagon core
+
+  qcom,halt-regs:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description:
+      Phandle reference to a syscon representing TCSR followed by the
+      four offsets within syscon for q6, CE, AXI and qv6 halt registers.
+    items:
+      items:
This has to be strictly defined, IOW, the second items must be already
an item of previous list. Look at the other mss-pil.
Okay. Will modify as per mss-pil.

+        - description: phandle to TCSR MUTEX
+        - description: offset to q6 halt registers
+        - description: offset to CE halt registers
+        - description: offset to AXI halt registers
+        - description: offset to qv6 halt registers
+
+  qcom,smem-states:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    description: States used by the AP to signal the Hexagon core
+    items:
+      - description: Stop the modem
+
+  qcom,smem-state-names:
+    description: The names of the state bits used for SMP2P output
+    const: stop
+
+  qcom,qmp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Reference to the AOSS side-channel message RAM.
+
+  glink-edge:
+    type: object
Missing ref to glink-edge and unevaluatedProperties:false. Please take a
look at recent
Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml
Okay. Will add reference to glink-edge.

+    description: |
+      Qualcomm G-Link subnode which represents communication edge, channels
+      and devices related to the ADSP.
+
+    properties:
+      interrupts:
+        items:
+          - description: IRQ from ADSP to GLINK
Skip interrupts and mboxes - both are coming from glink-edge.
Okay. Will remove it. But Same is followed in mss-pil

+
+      mboxes:
+        items:
+          - description: Mailbox for communication between APPS and ADSP
+
+      label:
+        description: The names of the state bits used for SMP2P output
Skip description
Okay.

+        items:
+          - const: lpass
No items, just const: lpass
Okay.

+
+      qcom,remote-pid:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: ID of the shared memory used by GLINK for communication with ADSP
This can be dropped.
Okay. Will remove qcom,remote-pid.

+
+      gpr: true
+      apr: false
+      fastrpc: false

BTW, all these three do not make sense without ref to glink-edge. After
adding ref, these seem reasonable.
Okay. will add glink-edge reference.

+
+    required:
+      - interrupts
+      - mboxes
+      - label
+      - qcom,remote-pid
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - clocks
+  - clock-names
+  - power-domains
+  - resets
+  - reset-names
+  - qcom,halt-regs
+  - memory-region
+  - qcom,smem-states
+  - qcom,smem-state-names
+  - qcom,qmp
+
+additionalProperties: false
Best regards,
Krzysztof




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