[PATCH v4 13/14] spi: omap2-mcspi: add generic DMA request support to the DT binding
The binding definition is based on the generic DMA request binding.
Signed-off-by: Matt Porter
---
Documentation/devicetree/bindings/spi/omap-spi.txt | 28 +++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt
b/Documentation/devicetree/bindings/spi/omap-spi.txt
index 938809c..3bd8eed 100644
--- a/Documentation/devicetree/bindings/spi/omap-spi.txt
+++ b/Documentation/devicetree/bindings/spi/omap-spi.txt
@@ -10,7 +10,18 @@ Required properties:
input. The default is D0 as input and
D1 as output.
-Example:
+Optional properties:
+- dmas: List of DMA controller phandle and DMA request ordered
+ pairs. One tx and one rx pair is required for each chip
+ select.
+- dma-names: List of DMA request names. These strings correspond
+ 1:1 with the ordered pairs in dmas. The string naming is
+ to be "rxN" and "txN" for RX and TX requests,
+ respectively, where N equals the chip select number.
+
+Examples:
+
+[hwmod populated DMA resources]
mcspi1: mcspi@1 {
#address-cells = <1>;
@@ -20,3 +31,18 @@ mcspi1: mcspi@1 {
ti,spi-num-cs = <4>;
};
+[generic DMA request binding]
+
+mcspi1: mcspi@1 {
+#address-cells = <1>;
+#size-cells = <0>;
+compatible = "ti,omap4-mcspi";
+ti,hwmods = "mcspi1";
+ti,spi-num-cs = <2>;
+dmas = < 42
+43
+44
+45>;
+dma-names = "tx0", "rx0", "tx1", "rx1";
+};
+
--
1.7.9.5
--
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[PATCH v4 13/14] spi: omap2-mcspi: add generic DMA request support to the DT binding
The binding definition is based on the generic DMA request binding.
Signed-off-by: Matt Porter mpor...@ti.com
---
Documentation/devicetree/bindings/spi/omap-spi.txt | 28 +++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt
b/Documentation/devicetree/bindings/spi/omap-spi.txt
index 938809c..3bd8eed 100644
--- a/Documentation/devicetree/bindings/spi/omap-spi.txt
+++ b/Documentation/devicetree/bindings/spi/omap-spi.txt
@@ -10,7 +10,18 @@ Required properties:
input. The default is D0 as input and
D1 as output.
-Example:
+Optional properties:
+- dmas: List of DMA controller phandle and DMA request ordered
+ pairs. One tx and one rx pair is required for each chip
+ select.
+- dma-names: List of DMA request names. These strings correspond
+ 1:1 with the ordered pairs in dmas. The string naming is
+ to be rxN and txN for RX and TX requests,
+ respectively, where N equals the chip select number.
+
+Examples:
+
+[hwmod populated DMA resources]
mcspi1: mcspi@1 {
#address-cells = 1;
@@ -20,3 +31,18 @@ mcspi1: mcspi@1 {
ti,spi-num-cs = 4;
};
+[generic DMA request binding]
+
+mcspi1: mcspi@1 {
+#address-cells = 1;
+#size-cells = 0;
+compatible = ti,omap4-mcspi;
+ti,hwmods = mcspi1;
+ti,spi-num-cs = 2;
+dmas = edma 42
+ edma 43
+ edma 44
+ edma 45;
+dma-names = tx0, rx0, tx1, rx1;
+};
+
--
1.7.9.5
--
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