dt-bindings: clock: document 8ULP's SIM LPAV

Add documentation for i.MX8ULP's SIM LPAV module.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Link: https://lore.kernel.org/r/20251104120301.913-3-laurentiumihalcea111@gmail.com
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>

diff --git a/Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml b/Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml
new file mode 100644 (file)
index 0000000..662e075
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/fsl,imx8ulp-sim-lpav.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/fsl,imx8ulp-sim-lpav.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX8ULP LPAV System Integration Module (SIM)
+
+maintainers:
+  - Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
+
+description:
+  The i.MX8ULP LPAV subsystem contains a block control module known as
+  SIM LPAV, which offers functionalities such as clock gating or reset
+  line assertion/de-assertion.
+
+properties:
+  compatible:
+    const: fsl,imx8ulp-sim-lpav
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: bus
+      - const: core
+      - const: plat
+
+  '#clock-cells':
+    const: 1
+
+  '#reset-cells':
+    const: 1
+
+  mux-controller:
+    $ref: /schemas/mux/reg-mux.yaml#
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - '#clock-cells'
+  - '#reset-cells'
+  - mux-controller
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8ulp-clock.h>
+
+    clock-controller@2da50000 {
+        compatible = "fsl,imx8ulp-sim-lpav";
+        reg = <0x2da50000 0x10000>;
+        clocks = <&cgc2 IMX8ULP_CLK_LPAV_BUS_DIV>,
+                 <&cgc2 IMX8ULP_CLK_HIFI_DIVCORE>,
+                 <&cgc2 IMX8ULP_CLK_HIFI_DIVPLAT>;
+        clock-names = "bus", "core", "plat";
+        #clock-cells = <1>;
+        #reset-cells = <1>;
+
+        mux-controller {
+            compatible = "reg-mux";
+            #mux-control-cells = <1>;
+            mux-reg-masks = <0x8 0x00000200>;
+        };
+    };

diff --git a/include/dt-bindings/clock/imx8ulp-clock.h b/include/dt-bindings/clock/imx8ulp-clock.h
index 827404fadf5c7c8201ff811f81e481433e6737a1..c62d84d093a9d56f981a3820b8920e4c4d6abfb5 100644 (file)
--- a/include/dt-bindings/clock/imx8ulp-clock.h
+++ b/include/dt-bindings/clock/imx8ulp-clock.h
@@ -255,4 +255,9 @@
 
 #define IMX8ULP_CLK_PCC5_END           56
 
+/* LPAV SIM */
+#define IMX8ULP_CLK_SIM_LPAV_HIFI_CORE         0
+#define IMX8ULP_CLK_SIM_LPAV_HIFI_PBCLK                1
+#define IMX8ULP_CLK_SIM_LPAV_HIFI_PLAT         2
+
 #endif

diff --git a/include/dt-bindings/reset/fsl,imx8ulp-sim-lpav.h b/include/dt-bindings/reset/fsl,imx8ulp-sim-lpav.h
new file mode 100644 (file)
index 0000000..adf95bb
--- /dev/null
+++ b/include/dt-bindings/reset/fsl,imx8ulp-sim-lpav.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/*
+ * Copyright 2025 NXP
+ */
+
+#ifndef DT_BINDING_RESET_IMX8ULP_SIM_LPAV_H
+#define DT_BINDING_RESET_IMX8ULP_SIM_LPAV_H
+
+#define IMX8ULP_SIM_LPAV_HIFI4_DSP_DBG_RST     0
+#define IMX8ULP_SIM_LPAV_HIFI4_DSP_RST         1
+#define IMX8ULP_SIM_LPAV_HIFI4_DSP_STALL       2
+#define IMX8ULP_SIM_LPAV_DSI_RST_BYTE_N                3
+#define IMX8ULP_SIM_LPAV_DSI_RST_ESC_N         4
+#define IMX8ULP_SIM_LPAV_DSI_RST_DPI_N         5
+
+#endif /* DT_BINDING_RESET_IMX8ULP_SIM_LPAV_H */