Makes interrupts property optional as the interrupts are not currently
used by the driver and adds interrupt-names property to name listed
interrupts. Currently know interrupt names are "tx" and "rx".
- Improve tdm-slots propery description
- Improve op-mode property description
- Add pinctrl-names and pinctrl-0 properties
- Remove #address-cells and #size-cells as they are not needed.
- Bracket named interrupts property tuples for uniformity.
- Add missing "for" to serial-dir prop in DT bindings doc.
Signed-off-by: Jyri Sarha <jsarha@xxxxxx>
---
.../bindings/sound/davinci-mcasp-audio.txt | 24 ++++++++++++--------
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index c3ccde7..ab2af66 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -11,13 +11,14 @@ Required properties:
* "mpu" for the main registers (required). For compatibility with
existing software, it is recommended this is the first entry.
* "dat" for separate data port register access (optional).
-- interrupts : Interrupt number for McASP
-- op-mode : I2S/DIT ops mode.
-- tdm-slots : Slots for TDM operation.
+- op-mode : I2S/DIT ops mode. 0 for I2S mode. 1 for DIT mode used for S/PDIF,
+ IEC60958-1, and AES-3 formats.
+- tdm-slots : Slots for TDM operation. Indicates number of channels transmitted
+ or received over one serializer.
- num-serializer : Serializers used by McASP.
-- serial-dir : A list of serializer pin mode. The list number should be equal
- to "num-serializer" parameter. Each entry is a number indication
- serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
+- serial-dir : A list of serializer configuration. Each entry is a number
+ indication for serializer pin direction.
+ (0 - INACTIVE, 1 - TX, 2 - RX)
- dmas: two element list of DMA controller phandles and DMA request line
ordered pairs.
- dma-names: identifier string for each DMA request line in the dmas property.
@@ -31,16 +32,21 @@ Optional properties:
- rx-num-evt : FIFO levels.
- sram-size-playback : size of sram to be allocated during playback
- sram-size-capture : size of sram to be allocated during capture
+- interrupts : Interrupt numbers for McASP, currently not used by the driver
+- interrupt-names : Known interrupt names are "tx" and "rx"
+- pinctrl-0: Should specify pin control group used for this controller.
+- pinctrl-names: Should contain only one value - "default", for more details
+ please refer to pinctrl-bindings.txt
+
Example:
mcasp0: mcasp0@1d00000 {
compatible = "ti,da830-mcasp-audio";
- #address-cells = <1>;
- #size-cells = <0>;
reg = <0x100000 0x3000>;
reg-names "mpu";
- interrupts = <82 83>;
+ interrupts = <82>, <83>;
+ interrupts-names = "tx", "rx";
op-mode = <0>; /* MCASP_IIS_MODE */
tdm-slots = <2>;
num-serializer = <16>;
--
1.7.9.5
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