Thread (22 messages) 22 messages, 3 authors, 2023-03-06

Re: [PATCH v6 01/10] dt-bindings: soc: fsl: cpm_qe: Add TSA controller

From: Rob Herring <robh@kernel.org>
Date: 2023-02-26 17:48:45
Also in: alsa-devel, linux-arm-kernel, linux-devicetree, lkml

On Fri, Feb 17, 2023 at 03:56:36PM +0100, Herve Codina wrote:
quoted hunk ↗ jump to hunk
Add support for the time slot assigner (TSA)
available in some PowerQUICC SoC such as MPC885
or MPC866.

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
---
 .../bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml | 215 ++++++++++++++++++
 include/dt-bindings/soc/cpm1-fsl,tsa.h        |  13 ++
 2 files changed, 228 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
 create mode 100644 include/dt-bindings/soc/cpm1-fsl,tsa.h
diff --git a/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
new file mode 100644
index 000000000000..332e902bcc21
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml
@@ -0,0 +1,215 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/fsl/cpm_qe/fsl,cpm1-tsa.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PowerQUICC CPM Time-slot assigner (TSA) controller
+
+maintainers:
+  - Herve Codina <herve.codina@bootlin.com>
+
+description:
+  The TSA is the time-slot assigner that can be found on some PowerQUICC SoC.
+  Its purpose is to route some TDM time-slots to other internal serial
+  controllers.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - fsl,mpc885-tsa
+          - fsl,mpc866-tsa
+      - const: fsl,cpm1-tsa
+
+  reg:
+    items:
+      - description: SI (Serial Interface) register base
+      - description: SI RAM base
+
+  reg-names:
+    items:
+      - const: si_regs
+      - const: si_ram
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+  '#fsl,serial-cells':
#foo-cells is for when there are differing foo providers which need 
different number of cells. That's not the case here.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    const: 1
+    description:
+      TSA consumers that use a phandle to TSA need to pass the serial identifier
+      with this phandle (defined in dt-bindings/soc/fsl,tsa.h).
+      For instance "fsl,tsa-serial = <&tsa FSL_CPM_TSA_SCC4>;".
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