[PATCH 6/6] ARM: dts: atlas6: Add I2S external clock input pingroup

[Barry Song]

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

The I2S controller can use the external clock as reference clock with
master mode. But based on different hardware or software design, this
external clock might be needed or not needed.
So the external input pin can be an independent pinctrl group, and the
card driver can decice to get it or not.

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 d3de7a3..1eb83c8 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -528,6 +528,12 @@
                                                 sirf,function = "i2s_mclk";
                                         };
                                 };
+				i2s_ext_clk_input_pins_a: i2s_ext_clk_input at 0 {
+                                        i2s_ext_clk_input {
+                                                sirf,pins = "i2s_ext_clk_inputgrp";
+                                                sirf,function = "i2s_ext_clk_input";
+                                        };
+                                };
                                 i2s_pins_a: i2s at 0 {
                                         i2s {
                                                 sirf,pins = "i2sgrp";
-- 
2.0.4



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