summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
diff options
context:
space:
mode:
authorTakashi Iwai <tiwai@suse.de>2013-02-11 14:03:37 +0100
committerTakashi Iwai <tiwai@suse.de>2013-02-11 14:03:37 +0100
commit83048ea7b1d11f5e560dea53873fb51d860202eb (patch)
tree5cc41aa9c2999188d3148e8828d44c4724115f5e /Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
parente9a25e04b845aade311aaa268a696c5c4ff3eece (diff)
parent699ba4546cfe3f4eee73aff4f307bf16362f9232 (diff)
Merge tag 'asoc-3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v3.9 A fairly quiet release for ASoC: - Support for a wider range of hardware in the compressed stream code. - The ability to mute capture streams as well as playback streams while inactive. - DT support for AK4642, FSI, Samsung I2S and WM8962. - AC'97 support for Tegra. - New driver for max98090, replacing the stub which was there. Due to dependencies we've also got support for asynchronous I/O in regmap and DTification of DMA support for Samsung platforms (used only by the I2S driver and SPI) merged here as well.
Diffstat (limited to 'Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt22
1 files changed, 22 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
new file mode 100644
index 00000000000..c1454979c1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra20-ac97.txt
@@ -0,0 +1,22 @@
+NVIDIA Tegra 20 AC97 controller
+
+Required properties:
+- compatible : "nvidia,tegra20-ac97"
+- reg : Should contain AC97 controller registers location and length
+- interrupts : Should contain AC97 interrupt
+- nvidia,dma-request-selector : The Tegra DMA controller's phandle and
+ request selector for the AC97 controller
+- nvidia,codec-reset-gpio : The Tegra GPIO controller's phandle and the number
+ of the GPIO used to reset the external AC97 codec
+- nvidia,codec-sync-gpio : The Tegra GPIO controller's phandle and the number
+ of the GPIO corresponding with the AC97 DAP _FS line
+Example:
+
+ac97@70002000 {
+ compatible = "nvidia,tegra20-ac97";
+ reg = <0x70002000 0x200>;
+ interrupts = <0 81 0x04>;
+ nvidia,dma-request-selector = <&apbdma 12>;
+ nvidia,codec-reset-gpio = <&gpio 170 0>;
+ nvidia,codec-sync-gpio = <&gpio 120 0>;
+};