[PATCH 4/6] ARM: dts: atlas6: add a separate pingroup for i2s mclk output

[Barry Song]

From: Rongjun Ying <rongjun.ying at csr.com>

The I2S controller can output mclk to external audio codec. But by
hardware design, some codecs need mclk and some codecs do not need
mclk. So the mclk pin can be an independent pinctrl group, and the
card driver can get it or not based on boards.

Signed-off-by: Rongjun Ying <rongjun.ying at csr.com>
Signed-off-by: Barry Song <Baohua.Song at csr.com>
---
 arch/arm/boot/dts/atlas6.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi
index bb22842..d3de7a3 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -522,6 +522,12 @@
                                                 sirf,function = "sdmmc5";
                                         };
                                 };
+				i2s_mclk_pins_a: i2s_mclk at 0 {
+                                        i2s_mclk {
+                                                sirf,pins = "i2smclkgrp";
+                                                sirf,function = "i2s_mclk";
+                                        };
+                                };
                                 i2s_pins_a: i2s at 0 {
                                         i2s {
                                                 sirf,pins = "i2sgrp";
-- 
2.0.4



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