From: <Codrin.Ciubotariu@microchip.com>
To: <alsa-devel@alsa-project.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Cc: <broonie@kernel.org>, <robh+dt@kernel.org>,
<Nicolas.Ferre@microchip.com>, <Ludovic.Desroches@microchip.com>,
<alexandre.belloni@bootlin.com>, <Cristian.Birsan@microchip.com>,
<Codrin.Ciubotariu@microchip.com>
Subject: [PATCH 1/2] ASoC: mchp-i2s-mcc: dt-bindings: add DT bindings for I2S Multi-Channel Controller
Date: Tue, 5 Mar 2019 11:26:42 +0000 [thread overview]
Message-ID: <20190305112610.9641-1-codrin.ciubotariu@microchip.com> (raw)
From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
This patch adds DT bindings for the new Microchip I2S Multi-Channel
controller embedded inside sam9x60 SoCs.
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
---
.../bindings/sound/mchp-i2s-mcc.txt | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt
diff --git a/Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt b/Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt
new file mode 100644
index 000000000000..91ec83a6faed
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mchp-i2s-mcc.txt
@@ -0,0 +1,43 @@
+* Microchip I2S Multi-Channel Controller
+
+Required properties:
+- compatible: Should be "microchip,sam9x60-i2smcc".
+- reg: Should be the physical base address of the controller and the
+ length of memory mapped region.
+- interrupts: Should contain the interrupt for the controller.
+- dmas: Should be one per channel name listed in the dma-names property,
+ as described in atmel-dma.txt and dma.txt files.
+- dma-names: Identifier string for each DMA request line in the dmas property.
+ Two dmas have to be defined, "tx" and "rx".
+- clocks: Must contain an entry for each entry in clock-names.
+ Please refer to clock-bindings.txt.
+- clock-names: Should be one of each entry matching the clocks phandles list:
+ - "pclk" (peripheral clock) Required.
+ - "gclk" (generated clock) Optional (1).
+
+Optional properties:
+- pinctrl-0: Should specify pin control groups used for this controller.
+- princtrl-names: Should contain only one value - "default".
+
+
+(1) : Only the peripheral clock is required. The generated clock is optional
+ and should be set mostly when Master Mode is required.
+
+Example:
+
+ i2s@f001c000 {
+ compatible = "microchip,sam9x60-i2smcc";
+ reg = <0xf001c000 0x100>;
+ interrupts = <34 IRQ_TYPE_LEVEL_HIGH 7>;
+ dmas = <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+ AT91_XDMAC_DT_PERID(36))>,
+ <&dma0
+ (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) |
+ AT91_XDMAC_DT_PERID(37))>;
+ dma-names = "tx", "rx";
+ clocks = <&i2s_clk>, <&i2s_gclk>;
+ clock-names = "pclk", "gclk";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2s_default>;
+ };
--
2.17.1
next reply other threads:[~2019-03-05 11:26 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-05 11:26 Codrin.Ciubotariu [this message]
2019-03-05 11:26 ` [PATCH 2/2] ASoC: mchp-i2s-mcc: add driver for I2SC Multi-Channel Controller Codrin.Ciubotariu
2019-03-21 15:06 ` Applied "ASoC: mchp-i2s-mcc: add driver for I2SC Multi-Channel Controller" to the asoc tree Mark Brown
2019-03-21 15:06 ` Applied "ASoC: mchp-i2s-mcc: dt-bindings: add DT bindings for I2S " Mark Brown
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