Add keyscan support for stih415.
It is put disabled by default because it is not enabled on all boards
Also there are PIOs conflict with already claimed lines.

Signed-off-by: Giuseppe Condorelli <[email protected]>
Signed-off-by: Gabriel Fernandez <[email protected]>
---
 arch/arm/boot/dts/stih415-pinctrl.dtsi | 16 ++++++++++++++++
 arch/arm/boot/dts/stih415.dtsi         | 12 ++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/stih415-pinctrl.dtsi 
b/arch/arm/boot/dts/stih415-pinctrl.dtsi
index 81df870..8509a03 100644
--- a/arch/arm/boot/dts/stih415-pinctrl.dtsi
+++ b/arch/arm/boot/dts/stih415-pinctrl.dtsi
@@ -102,6 +102,22 @@
                                };
                        };
 
+                       keyscan {
+                               pinctrl_keyscan: keyscan {
+                                       st,pins {
+                                               keyin0 = <&PIO0 2 ALT2 IN>;
+                                               keyin1 = <&PIO0 3 ALT2 IN>;
+                                               keyin2 = <&PIO0 4 ALT2 IN>;
+                                               keyin3 = <&PIO2 6 ALT2 IN>;
+
+                                               keyout0 = <&PIO1 6 ALT2 OUT>;
+                                               keyout1 = <&PIO1 7 ALT2 OUT>;
+                                               keyout2 = <&PIO0 6 ALT2 OUT>;
+                                               keyout3 = <&PIO2 7 ALT2 OUT>;
+                                       };
+                               };
+                       };
+
                        sbc_i2c0 {
                                pinctrl_sbc_i2c0_default: sbc_i2c0-default {
                                        st,pins {
diff --git a/arch/arm/boot/dts/stih415.dtsi b/arch/arm/boot/dts/stih415.dtsi
index d89064c..ba0905c 100644
--- a/arch/arm/boot/dts/stih415.dtsi
+++ b/arch/arm/boot/dts/stih415.dtsi
@@ -206,5 +206,17 @@
                        pinctrl-0       = <&pinctrl_ir>;
                        resets          = <&softreset STIH415_IRB_SOFTRESET>;
                };
+
+               keyscan: keyscan@fe4b0000 {
+                       compatible = "st,sti-keyscan";
+                       status = "disabled";
+                       reg = <0xfe4b0000 0x2000>;
+                       interrupts = <GIC_SPI 212 IRQ_TYPE_NONE>;
+                       clocks = <&CLK_SYSIN>;
+                       pinctrl-names = "default";
+                       pinctrl-0 = <&pinctrl_keyscan>;
+                       resets  = <&powerdown STIH415_KEYSCAN_POWERDOWN>,
+                                 <&softreset STIH415_KEYSCAN_SOFTRESET>;
+               };
        };
 };
-- 
1.9.1

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