i2c3 controller can use several sets of pins depending
on board design. This patch adds the missing alternate
pinconfigs.

Signed-off-by: Seraphin Bonnaffe <seraphin.bonna...@st.com>
Signed-off-by: Peter Griffin <peter.grif...@linaro.org>
---
 arch/arm/boot/dts/stih407-pinctrl.dtsi | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/stih407-pinctrl.dtsi 
b/arch/arm/boot/dts/stih407-pinctrl.dtsi
index d86ccc8..ce219a1 100644
--- a/arch/arm/boot/dts/stih407-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stih407-pinctrl.dtsi
@@ -430,12 +430,24 @@
                        };
 
                        i2c3 {
-                               pinctrl_i2c3_default: i2c3-default {
+                               pinctrl_i2c3_default: i2c3-alt1-0 {
                                        st,pins {
                                                sda = <&pio18 6 ALT1 BIDIR>;
                                                scl = <&pio18 5 ALT1 BIDIR>;
                                        };
                                };
+                               pinctrl_i2c3_alt1_1: i2c3-alt1-1 {
+                                       st,pins {
+                                               sda = <&pio17 7 ALT1 BIDIR>;
+                                               scl = <&pio17 6 ALT1 BIDIR>;
+                                       };
+                               };
+                               pinctrl_i2c3_alt3_0: i2c3-alt3-0 {
+                                       st,pins {
+                                               sda = <&pio13 6 ALT3 BIDIR>;
+                                               scl = <&pio13 5 ALT3 BIDIR>;
+                                       };
+                               };
                        };
 
                        spi0 {
-- 
1.9.1

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