ARM: DT: STiH407: Add SPI 3 wire and 4 wire pinctrl configs

This patch adds the spi pinctrl configurations for all SPI
controllers, and also the alternate muxings which
can be used depending on board design.
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>

arch/arm/boot/dts/stih407-pinctrl.dtsi

@@ -262,6 +262,57 @@ st,pins {
 					};
 				};
 			};
+
+			spi10 {
+				pinctrl_spi10_default: spi10-4w-alt1-0 {
+					st,pins {
+						mtsr = <&pio4 6 ALT1 OUT>;
+						mrst = <&pio4 7 ALT1 IN>;
+						scl = <&pio4 5 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi10_3w_alt1_0: spi10-3w-alt1-0 {
+					st,pins {
+						mtsr = <&pio4 6 ALT1 BIDIR_PU>;
+						scl = <&pio4 5 ALT1 OUT>;
+					};
+				};
+			};
+
+			spi11 {
+				pinctrl_spi11_default: spi11-4w-alt2-0 {
+					st,pins {
+						mtsr = <&pio3 1 ALT2 OUT>;
+						mrst = <&pio3 0 ALT2 IN>;
+						scl = <&pio3 2 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi11_3w_alt2_0: spi11-3w-alt2-0 {
+					st,pins {
+						mtsr = <&pio3 1 ALT2 BIDIR_PU>;
+						scl = <&pio3 2 ALT2 OUT>;
+					};
+				};
+			};
+
+			spi12 {
+				pinctrl_spi12_default: spi12-4w-alt2-0 {
+					st,pins {
+						mtsr = <&pio3 6 ALT2 OUT>;
+						mrst = <&pio3 4 ALT2 IN>;
+						scl = <&pio3 7 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi12_3w_alt2_0: spi12-3w-alt2-0 {
+					st,pins {
+						mtsr = <&pio3 6 ALT2 BIDIR_PU>;
+						scl = <&pio3 7 ALT2 OUT>;
+					};
+				};
+			};
 		};
 
 		pin-controller-front0 {
@@ -451,11 +502,159 @@ st,pins {
 			};
 
 			spi0 {
-				pinctrl_spi0_default: spi0-default {
+				pinctrl_spi0_default: spi0-4w-alt2-0 {
+					st,pins {
+						mtsr = <&pio10 6 ALT2 OUT>;
+						mrst = <&pio10 7 ALT2 IN>;
+						scl = <&pio10 5 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi0_3w_alt2_0: spi0-3w-alt2-0 {
 					st,pins {
-						mtsr = <&pio12 6 ALT2 BIDIR>;
-						mrst = <&pio12 7 ALT2 BIDIR>;
-						scl = <&pio12 5 ALT2 BIDIR>;
+						mtsr = <&pio10 6 ALT2 BIDIR_PU>;
+						scl = <&pio10 5 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi0_4w_alt1_0: spi0-4w-alt1-0 {
+					st,pins {
+						mtsr = <&pio19 7 ALT1 OUT>;
+						mrst = <&pio19 5 ALT1 IN>;
+						scl = <&pio19 6 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi0_3w_alt1_0: spi0-3w-alt1-0 {
+					st,pins {
+						mtsr = <&pio19 7 ALT1 BIDIR_PU>;
+						scl = <&pio19 6 ALT1 OUT>;
+					};
+				};
+			};
+
+			spi1 {
+				pinctrl_spi1_default: spi1-4w-alt2-0 {
+					st,pins {
+						mtsr = <&pio11 1 ALT2 OUT>;
+						mrst = <&pio11 2 ALT2 IN>;
+						scl = <&pio11 0 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi1_3w_alt2_0: spi1-3w-alt2-0 {
+					st,pins {
+						mtsr = <&pio11 1 ALT2 BIDIR_PU>;
+						scl = <&pio11 0 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi1_4w_alt1_0: spi1-4w-alt1-0 {
+					st,pins {
+						mtsr = <&pio14 3 ALT1 OUT>;
+						mrst = <&pio14 4 ALT1 IN>;
+						scl = <&pio14 2 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi1_3w_alt1_0: spi1-3w-alt1-0 {
+					st,pins {
+						mtsr = <&pio14 3 ALT1 BIDIR_PU>;
+						scl = <&pio14 2 ALT1 OUT>;
+					};
+				};
+			};
+
+			spi2 {
+				pinctrl_spi2_default: spi2-4w-alt2-0 {
+					st,pins {
+						mtsr = <&pio12 6 ALT2 OUT>;
+						mrst = <&pio12 7 ALT2 IN>;
+						scl = <&pio12 5 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi2_3w_alt2_0: spi2-3w-alt2-0 {
+					st,pins {
+						mtsr = <&pio12 6 ALT2 BIDIR_PU>;
+						scl = <&pio12 5 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi2_4w_alt1_0: spi2-4w-alt1-0 {
+					st,pins {
+						mtsr = <&pio14 6 ALT1 OUT>;
+						mrst = <&pio14 7 ALT1 IN>;
+						scl = <&pio14 5 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi2_3w_alt1_0: spi2-3w-alt1-0 {
+					st,pins {
+						mtsr = <&pio14 6 ALT1 BIDIR_PU>;
+						scl = <&pio14 5 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi2_4w_alt2_1: spi2-4w-alt2-1 {
+					st,pins {
+						mtsr = <&pio15 6 ALT2 OUT>;
+						mrst = <&pio15 7 ALT2 IN>;
+						scl = <&pio15 5 ALT2 OUT>;
+					};
+				};
+
+				pinctrl_spi2_3w_alt2_1: spi2-3w-alt2-1 {
+					st,pins {
+						mtsr = <&pio15 6 ALT2 BIDIR_PU>;
+						scl = <&pio15 5 ALT2 OUT>;
+					};
+				};
+			};
+
+			spi3 {
+				pinctrl_spi3_default: spi3-4w-alt3-0 {
+					st,pins {
+						mtsr = <&pio13 6 ALT3 OUT>;
+						mrst = <&pio13 7 ALT3 IN>;
+						scl = <&pio13 5 ALT3 OUT>;
+					};
+				};
+
+				pinctrl_spi3_3w_alt3_0: spi3-3w-alt3-0 {
+					st,pins {
+						mtsr = <&pio13 6 ALT3 BIDIR_PU>;
+						scl = <&pio13 5 ALT3 OUT>;
+					};
+				};
+
+				pinctrl_spi3_4w_alt1_0: spi3-4w-alt1-0 {
+					st,pins {
+						mtsr = <&pio17 7 ALT1 OUT>;
+						mrst = <&pio17 5 ALT1 IN>;
+						scl = <&pio17 6 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi3_3w_alt1_0: spi3-3w-alt1-0 {
+					st,pins {
+						mtsr = <&pio17 7 ALT1 BIDIR_PU>;
+						scl = <&pio17 6 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi3_4w_alt1_1: spi3-4w-alt1-1 {
+					st,pins {
+						mtsr = <&pio18 6 ALT1 OUT>;
+						mrst = <&pio18 7 ALT1 IN>;
+						scl = <&pio18 5 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi3_3w_alt1_1: spi3-3w-alt1-1 {
+					st,pins {
+						mtsr = <&pio18 6 ALT1 BIDIR_PU>;
+						scl = <&pio18 5 ALT1 OUT>;
 					};
 				};
 			};
@@ -778,6 +977,38 @@ st,pins {
 					};
 				};
 			};
+
+			spi4 {
+				pinctrl_spi4_default: spi4-4w-alt1-0 {
+					st,pins {
+						mtsr = <&pio30 1 ALT1 OUT>;
+						mrst = <&pio30 2 ALT1 IN>;
+						scl = <&pio30 0 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi4_3w_alt1_0: spi4-3w-alt1-0 {
+					st,pins {
+						mtsr = <&pio30 1 ALT1 BIDIR_PU>;
+						scl = <&pio30 0 ALT1 OUT>;
+					};
+				};
+
+				pinctrl_spi4_4w_alt3_0: spi4-4w-alt3-0 {
+					st,pins {
+						mtsr = <&pio34 1 ALT3 OUT>;
+						mrst = <&pio34 2 ALT3 IN>;
+						scl = <&pio34 0 ALT3 OUT>;
+					};
+				};
+
+				pinctrl_spi4_3w_alt3_0: spi4-3w-alt3-0 {
+					st,pins {
+						mtsr = <&pio34 1 ALT3 BIDIR_PU>;
+						scl = <&pio34 0 ALT3 OUT>;
+					};
+				};
+			};
 		};
 
 		pin-controller-flash {