From: Jianqun Xu <jay.xu@rock-chips.com>
To: heiko@sntech.de, lgirdwood@gmail.com, broonie@kernel.org,
perex@perex.cz, tiwai@suse.de,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, alsa-devel@alsa-project.org,
linux-kernel@vger.kernel.org, huangtao@rock-chips.com
Cc: Jianqun Xu <jay.xu@rock-chips.com>
Subject: [PATCH v2 1/2] ASoC: rockchip-i2s: dt: add an optional property "i2s_clk_out"
Date: Wed, 19 Nov 2014 16:07:27 +0800 [thread overview]
Message-ID: <1416384447-29391-1-git-send-email-jay.xu@rock-chips.com> (raw)
In-Reply-To: <1416366365-4632-2-git-send-email-jay.xu@rock-chips.com>
Add an property "i2s_clk_out", which enables to output clock to outside
of rockchip SoCs. Let's make it optional since not each board needs it.
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
---
changes since v1:
- make "i2s_clk_out" optional, suggested by Sonny
Documentation/devicetree/bindings/sound/rockchip-i2s.txt | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
index 9b82c20..6dedd0d 100644
--- a/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/rockchip-i2s.txt
@@ -22,6 +22,10 @@ Required properties:
- "i2s_hclk": clock for I2S BUS
- "i2s_clk" : clock for I2S controller
+Optional property:
+ - "i2s_clk_out" : clock output to outside of chip, usally as master clock for audio
+ codec chip
+
Example for rk3288 I2S controller:
i2s@ff890000 {
@@ -32,6 +36,6 @@ i2s@ff890000 {
#size-cells = <0>;
dmas = <&pdma1 0>, <&pdma1 1>;
dma-names = "tx", "rx";
- clock-names = "i2s_hclk", "i2s_clk";
- clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>;
+ clock-names = "i2s_hclk", "i2s_clk", "i2s_clk_out";
+ clocks = <&cru HCLK_I2S0>, <&cru SCLK_I2S0>, <&cru SCLK_I2S0_CLKOUT>;
};
--
1.9.1
next prev parent reply other threads:[~2014-11-19 8:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-19 3:06 [PATCH 0/2] ASoC: rockchip: i2s: add support for grabbing output clock to codec Jianqun Xu
2014-11-19 3:06 ` [PATCH 1/2] ASoC: rockchip-i2s: dt: add i2s_clkout to list of clocks Jianqun Xu
2014-11-19 8:07 ` Jianqun Xu [this message]
2014-11-19 10:10 ` [PATCH v2 1/2] ASoC: rockchip-i2s: dt: add an optional property "i2s_clk_out" Mark Brown
2014-11-19 3:07 ` [PATCH 2/2] ASoC: rockchip: i2s: add support for grabbing output clock to codec Jianqun Xu
2014-11-19 3:57 ` Sonny Rao
2014-11-19 8:09 ` [PATCH v2 " Jianqun Xu
2014-11-19 10:17 ` Heiko Stübner
2014-11-19 10:27 ` Kever Yang
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