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authorStephen Warren2013-11-11 14:04:19 -0600
committerStephen Warren2013-12-11 17:42:23 -0600
commited520c90b3c0453e687404c6028366fdb593d35e (patch)
treec35438d79c87ba907b5118cde2aebfb71b42fcd8 /Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt
parent07999587b7bbedbb6556c94f70227a99e66f19aa (diff)
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ARM: tegra: document use of standard DMA DT bindings
Update all the Tegra DT bindings to require the standard dmas/dma-names properties rather than non-standard nvidia,dma-request-selector property. This is a DT-ABI-incompatible change. It is the second of two changes required for me to consider the Tegra DT bindings as stable, the other being the previous conversion to the common reset bindings. Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt14
1 files changed, 9 insertions, 5 deletions
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt
index 8b070aeca3db..dc30c6bfbe95 100644
--- a/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-i2s.txt
@@ -4,14 +4,17 @@ Required properties:
4- compatible : "nvidia,tegra20-i2s" 4- compatible : "nvidia,tegra20-i2s"
5- reg : Should contain I2S registers location and length 5- reg : Should contain I2S registers location and length
6- interrupts : Should contain I2S interrupt 6- interrupts : Should contain I2S interrupt
7- clocks : Must contain one entry, for the module clock.
8 See ../clocks/clock-bindings.txt for details.
9- resets : Must contain an entry for each entry in reset-names. 7- resets : Must contain an entry for each entry in reset-names.
10 See ../reset/reset.txt for details. 8 See ../reset/reset.txt for details.
11- reset-names : Must include the following entries: 9- reset-names : Must include the following entries:
12 - i2s 10 - i2s
13- nvidia,dma-request-selector : The Tegra DMA controller's phandle and 11- dmas : Must contain an entry for each entry in clock-names.
14 request selector for this I2S controller 12 See ../dma/dma.txt for details.
13- dma-names : Must include the following entries:
14 - rx
15 - tx
16- clocks : Must contain one entry, for the module clock.
17 See ../clocks/clock-bindings.txt for details.
15 18
16Example: 19Example:
17 20
@@ -19,8 +22,9 @@ i2s@70002800 {
19 compatible = "nvidia,tegra20-i2s"; 22 compatible = "nvidia,tegra20-i2s";
20 reg = <0x70002800 0x200>; 23 reg = <0x70002800 0x200>;
21 interrupts = < 45 >; 24 interrupts = < 45 >;
22 nvidia,dma-request-selector = < &apbdma 2 >;
23 clocks = <&tegra_car 11>; 25 clocks = <&tegra_car 11>;
24 resets = <&tegra_car 11>; 26 resets = <&tegra_car 11>;
25 reset-names = "i2s"; 27 reset-names = "i2s";
28 dmas = <&apbdma 21>, <&apbdma 21>;
29 dma-names = "rx", "tx";
26}; 30};