arm: am33xx: add TSC/ADC mfd device support

Add support for core multifunctional device along
with its clients touchscreen and ADC.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>

2 files changed, 32 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 0423298a26fe..26fea97dd6e0 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -244,3 +244,17 @@
 &cpsw_emac1 {
         phy_id = <&davinci_mdio>, <1>;
 };
+
+&tscadc {
+        status = "okay";
+        tsc {
+                ti,wires = <4>;
+                ti,x-plate-resistance = <200>;
+                ti,coordiante-readouts = <5>;
+                ti,wire-config = <0x00 0x11 0x22 0x33>;
+        };
+
+        adc {
+                ti,adc-channels = <4>;
+        };
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 1460d9b88adf..4ad7797b97b6 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -404,6 +404,24 @@
                         ti,hwmods = "wkup_m3";
                 };
 
+                tscadc: tscadc@44e0d000 {
+                        compatible = "ti,am3359-tscadc";
+                        reg = <0x44e0d000 0x1000>;
+                        interrupt-parent = <&intc>;
+                        interrupts = <16>;
+                        ti,hwmods = "adc_tsc";
+                        status = "disabled";
+
+                        tsc {
+                                compatible = "ti,am3359-tsc";
+                        };
+                        am335x_adc: adc {
+                                #io-channel-cells = <1>;
+                                compatible = "ti,am3359-adc";
+                        };
+
+                };
+
                 gpmc: gpmc@50000000 {
                         compatible = "ti,am3352-gpmc";
                         ti,hwmods = "gpmc";