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[v2,1/2] reset: meson: add dt-bindings for meson-axg audio arb

Message ID 20180720152633.6227-2-jbrunet@baylibre.com
State Accepted
Commit 5338073561bea23363e5552b647dad75bc7d0f11
Headers show
Series reset: meson: add audio arb controller | expand

Commit Message

Jerome Brunet July 20, 2018, 3:26 p.m. UTC 
Add dt-bindings for the audio memory arbiter found on Amlogic's
A113 based SoCs

Reviewed-by: Rob Herring <robh@kernel.org>

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>

---
 .../bindings/reset/amlogic,meson-axg-audio-arb.txt  | 21 +++++++++++++++++++++
 .../dt-bindings/reset/amlogic,meson-axg-audio-arb.h | 17 +++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt
 create mode 100644 include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h

-- 
2.14.4
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt b/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt
new file mode 100644
index 000000000000..26e542eb96df
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/amlogic,meson-axg-audio-arb.txt
@@ -0,0 +1,21 @@ 
+* Amlogic audio memory arbiter controller
+
+The Amlogic Audio ARB is a simple device which enables or
+disables the access of Audio FIFOs to DDR on AXG based SoC.
+
+Required properties:
+- compatible: 'amlogic,meson-axg-audio-arb'
+- reg: physical base address of the controller and length of memory
+       mapped region.
+- clocks: phandle to the fifo peripheral clock provided by the audio
+	  clock controller.
+- #reset-cells: must be 1.
+
+Example on the A113 SoC:
+
+arb: reset-controller@280 {
+	compatible = "amlogic,meson-axg-audio-arb";
+	reg = <0x0 0x280 0x0 0x4>;
+	#reset-cells = <1>;
+	clocks = <&clkc_audio AUD_CLKID_DDR_ARB>;
+};
diff --git a/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h b/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
new file mode 100644
index 000000000000..05c36367875c
--- /dev/null
+++ b/include/dt-bindings/reset/amlogic,meson-axg-audio-arb.h
@@ -0,0 +1,17 @@ 
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT)
+ *
+ * Copyright (c) 2018 Baylibre SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H
+#define _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H
+
+#define AXG_ARB_TODDR_A	0
+#define AXG_ARB_TODDR_B	1
+#define AXG_ARB_TODDR_C	2
+#define AXG_ARB_FRDDR_A	3
+#define AXG_ARB_FRDDR_B	4
+#define AXG_ARB_FRDDR_C	5
+
+#endif /* _DT_BINDINGS_AMLOGIC_MESON_AXG_AUDIO_ARB_H */