aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorDylan Reid2014-05-19 21:18:27 -0500
committerTakashi Iwai2014-05-20 02:38:38 -0500
commit3c320f3f5649667874d754e59bdd84dab185fe04 (patch)
tree30eddddabb1fbbc34c464dee7e454886780dcb4f /Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.txt
parent9674678633377ac5065dc587a536abfe6ff98ca9 (diff)
downloadti-linux-kernel-3c320f3f5649667874d754e59bdd84dab185fe04.tar.gz
ti-linux-kernel-3c320f3f5649667874d754e59bdd84dab185fe04.tar.xz
ti-linux-kernel-3c320f3f5649667874d754e59bdd84dab185fe04.zip
ALSA: hda - Add driver for Tegra SoC HDA
This adds a driver for the HDA block in Tegra SoCs. The HDA bus is used to communicate with the HDMI codec on Tegra124. Most of the code is re-used from the Intel/PCI HDA driver. It brings over only two of the module params, power_save and probe_mask. Signed-off-by: Dylan Reid <dgreid@chromium.org> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.txt b/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.txt
new file mode 100644
index 000000000000..c26f8ca97023
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra30-hda.txt
@@ -0,0 +1,28 @@
1NVIDIA Tegra30 HDA controller
2
3Required properties:
4- compatible : "nvidia,tegra30-hda"
5- reg : Should contain the HDA registers location and length.
6- interrupts : The interrupt from the HDA controller.
7- clocks : Must contain an entry for each required entry in clock-names.
8 See ../clocks/clock-bindings.txt for details.
9- clock-names : Must include the following entries: hda, hdacodec_2x, hda2hdmi
10- resets : Must contain an entry for each entry in reset-names.
11 See ../reset/reset.txt for details.
12- reset-names : Must include the following entries: hda, hdacodec_2x, hda2hdmi
13
14Example:
15
16hda@0,70030000 {
17 compatible = "nvidia,tegra124-hda", "nvidia,tegra30-hda";
18 reg = <0x0 0x70030000 0x0 0x10000>;
19 interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
20 clocks = <&tegra_car TEGRA124_CLK_HDA>,
21 <&tegra_car TEGRA124_CLK_HDA2HDMI>,
22 <&tegra_car TEGRA124_CLK_HDA2CODEC_2X>;
23 clock-names = "hda", "hda2hdmi", "hdacodec_2x";
24 resets = <&tegra_car 125>, /* hda */
25 <&tegra_car 128>; /* hda2hdmi */
26 <&tegra_car 111>, /* hda2codec_2x */
27 reset-names = "hda", "hda2hdmi", "hdacodec_2x";
28};