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Message-Id: <20200519224151.2074597-13-lkundrak@v3.sk>
Date: Wed, 20 May 2020 00:41:50 +0200
From: Lubomir Rintel <lkundrak@...sk>
To: Stephen Boyd <sboyd@...nel.org>
Cc: Michael Turquette <mturquette@...libre.com>,
Rob Herring <robh+dt@...nel.org>, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH v3 12/13] dt-bindings: clock: Add Marvell MMP Audio Clock Controller binding
This describes the bindings for a controller that generates master and bit
clocks for the I2S interface.
Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
Changes since v1:
- Fix commit message wording
- Define MMP2_CLK_AUDIO_NR_CLKS
- Make clock ids start at 0, not 1
- Fix dt-bindings/clock/marvell,mmp2-audio.h file name
- Rename node from "clocks" to "clock-controller"
.../clock/marvell,mmp2-audio-clock.yaml | 74 +++++++++++++++++++
.../dt-bindings/clock/marvell,mmp2-audio.h | 10 +++
2 files changed, 84 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/marvell,mmp2-audio-clock.yaml
create mode 100644 include/dt-bindings/clock/marvell,mmp2-audio.h
diff --git a/Documentation/devicetree/bindings/clock/marvell,mmp2-audio-clock.yaml b/Documentation/devicetree/bindings/clock/marvell,mmp2-audio-clock.yaml
new file mode 100644
index 000000000000..ab6e82d1d3a9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/marvell,mmp2-audio-clock.yaml
@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/marvell,mmp2-audio-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MMP2 Audio Clock Controller
+
+maintainers:
+ - Lubomir Rintel <lkundrak@...sk>
+
+description: |
+ The audio clock controller generates and supplies the clocks to the audio
+ codec.
+
+ Each clock is assigned an identifier and client nodes use this identifier
+ to specify the clock which they consume.
+
+ All these identifiers could be found in
+ <dt-bindings/clock/marvell,mmp2-audio.h>.
+
+properties:
+ compatible:
+ enum:
+ - marvell,mmp2-audio-clock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Audio subsystem clock
+ - description: The crystal oscillator clock
+ - description: First I2S clock
+ - description: Second I2S clock
+
+ clock-names:
+ items:
+ - const: audio
+ - const: vctcxo
+ - const: i2s0
+ - const: i2s1
+
+ '#clock-cells':
+ const: 1
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/marvell,mmp2-audio.h>
+ #include <dt-bindings/power/marvell,mmp2.h>
+
+ clock-controller@...a0c30 {
+ compatible = "marvell,mmp2-audio-clock";
+ reg = <0xd42a0c30 0x10>;
+ clock-names = "audio", "vctcxo", "i2s0", "i2s1";
+ clocks = <&soc_clocks MMP2_CLK_AUDIO>,
+ <&soc_clocks MMP2_CLK_VCTCXO>,
+ <&soc_clocks MMP2_CLK_I2S0>,
+ <&soc_clocks MMP2_CLK_I2S1>;
+ power-domains = <&soc_clocks MMP2_POWER_DOMAIN_AUDIO>;
+ #clock-cells = <1>;
+ };
diff --git a/include/dt-bindings/clock/marvell,mmp2-audio.h b/include/dt-bindings/clock/marvell,mmp2-audio.h
new file mode 100644
index 000000000000..20664776f497
--- /dev/null
+++ b/include/dt-bindings/clock/marvell,mmp2-audio.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause) */
+#ifndef __DT_BINDINGS_CLOCK_MARVELL_MMP2_AUDIO_H
+#define __DT_BINDINGS_CLOCK_MARVELL_MMP2_AUDIO_H
+
+#define MMP2_CLK_AUDIO_SYSCLK 0
+#define MMP2_CLK_AUDIO_SSPA0 1
+#define MMP2_CLK_AUDIO_SSPA1 2
+
+#define MMP2_CLK_AUDIO_NR_CLKS 3
+#endif
--
2.26.2
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