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Subject[PATCH 4/5] ASoC: dt-bindings: cs35l45: Cirrus Logic CS35L45 Smart Amp
Date
This adds the schema binding for the Cirrus Logic CS35L45 Smart Amp
and associated header file.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
.../bindings/sound/cirrus,cs35l45.yaml | 75 +++++++++++++++++++
MAINTAINERS | 2 +
include/dt-bindings/sound/cs35l45.h | 20 +++++
3 files changed, 97 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/cirrus,cs35l45.yaml
create mode 100644 include/dt-bindings/sound/cs35l45.h

diff --git a/Documentation/devicetree/bindings/sound/cirrus,cs35l45.yaml b/Documentation/devicetree/bindings/sound/cirrus,cs35l45.yaml
new file mode 100644
index 000000000000..184a1344ea76
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cirrus,cs35l45.yaml
@@ -0,0 +1,75 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/cirrus,cs35l45.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic CS35L45 Speaker Amplifier
+
+maintainers:
+ - Ricardo Rivera-Matos <rriveram@opensource.cirrus.com>
+ - Richard Fitzgerald <rf@opensource.cirrus.com>
+
+description: |
+ CS35L45 is a Boosted Mono Class D Amplifier with DSP
+ Speaker Protection and Adaptive Battery Management.
+
+properties:
+ compatible:
+ enum:
+ - cirrus,cs35l45
+
+ reg:
+ maxItems: 1
+
+ '#sound-dai-cells':
+ const: 1
+
+ reset-gpios:
+ maxItems: 1
+
+ vdd-a-supply:
+ description: voltage regulator phandle for the VDD_A supply
+
+ vdd-batt-supply:
+ description: voltage regulator phandle for the VDD_BATT supply
+
+ spi-max-frequency:
+ maximum: 5000000
+
+ cirrus,asp-sdout-hiz-ctrl:
+ description:
+ Audio serial port SDOUT Hi-Z control. Sets the Hi-Z
+ configuration for SDOUT pin of amplifier. Logical OR of
+ CS35L45_ASP_TX_HIZ_xxx values.
+ $ref: "/schemas/types.yaml#/definitions/uint32"
+ minimum: 0
+ maximum: 3
+ default: 2
+
+required:
+ - compatible
+ - reg
+ - "#sound-dai-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/sound/cs35l45.h>
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cs35l45: cs35l45@2 {
+ #sound-dai-cells = <1>;
+ compatible = "cirrus,cs35l45";
+ reg = <2>;
+ spi-max-frequency = <5000000>;
+ vdd-a-supply = <&dummy_vreg>;
+ vdd-batt-supply = <&dummy_vreg>;
+ reset-gpios = <&gpio 110 0>;
+ cirrus,asp-sdout-hiz-ctrl = <(CS35L45_ASP_TX_HIZ_UNUSED |
+ CS35L45_ASP_TX_HIZ_DISABLED)>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 46ffe05eaeb7..0a2a8bcabbea 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4580,10 +4580,12 @@ CIRRUS LOGIC AUDIO CODEC DRIVERS
M: James Schulman <james.schulman@cirrus.com>
M: David Rhodes <david.rhodes@cirrus.com>
M: Lucas Tanure <tanureal@opensource.cirrus.com>
+M: Richard Fitzgerald <rf@opensource.cirrus.com>
L: alsa-devel@alsa-project.org (moderated for non-subscribers)
L: patches@opensource.cirrus.com
S: Maintained
F: Documentation/devicetree/bindings/sound/cirrus,cs*
+F: include/dt-bindings/sound/cs*
F: sound/pci/hda/cs*
F: sound/soc/codecs/cs*

diff --git a/include/dt-bindings/sound/cs35l45.h b/include/dt-bindings/sound/cs35l45.h
new file mode 100644
index 000000000000..076da4b2c28d
--- /dev/null
+++ b/include/dt-bindings/sound/cs35l45.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * cs35l45.h -- CS35L45 ALSA SoC audio driver DT bindings header
+ *
+ * Copyright 2022 Cirrus Logic, Inc.
+ */
+
+#ifndef DT_CS35L45_H
+#define DT_CS35L45_H
+
+/*
+ * cirrus,asp-sdout-hiz-ctrl
+ *
+ * TX_HIZ_UNUSED: TX pin high-impedance during unused slots.
+ * TX_HIZ_DISABLED: TX pin high-impedance when all channels disabled.
+ */
+#define CS35L45_ASP_TX_HIZ_UNUSED 0x1
+#define CS35L45_ASP_TX_HIZ_DISABLED 0x2
+
+#endif /* DT_CS35L45_H */
--
2.30.2
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