Merge tag 'amlogic-dt-2' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/dt

ARM: dts: Amlogic updates for v5.2, round 2
- enable RTC on odroid-c1, ec100
- meson8: add internal clock measurer

* tag 'amlogic-dt-2' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  ARM: dts: meson8b: odroid-c1: prepare support for the RTC
  ARM: dts: meson8b: ec100: enable the RTC
  ARM: dts: meson: add support for the RTC

Signed-off-by: Olof Johansson <olof@lixom.net>

5 files changed, 47 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/meson.dtsi b/arch/arm/boot/dts/meson.dtsi
index 6f54a8897574..8841783aceec 100644
--- a/arch/arm/boot/dts/meson.dtsi
+++ b/arch/arm/boot/dts/meson.dtsi
@@ -252,6 +252,15 @@
 				#size-cells = <0>;
 				status = "disabled";
 			};
+
+			rtc: rtc@740 {
+				compatible = "amlogic,meson6-rtc";
+				reg = <0x740 0x14>;
+				interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				status = "disabled";
+			};
 		};
 
 		usb0: usb@c9040000 {
diff --git a/arch/arm/boot/dts/meson8.dtsi b/arch/arm/boot/dts/meson8.dtsi
index d2ec4af82cc5..7ef442462ea4 100644
--- a/arch/arm/boot/dts/meson8.dtsi
+++ b/arch/arm/boot/dts/meson8.dtsi
@@ -541,6 +541,11 @@
 	compatible = "amlogic,meson8-pwm", "amlogic,meson8b-pwm";
 };
 
+&rtc {
+	compatible = "amlogic,meson8-rtc";
+	resets = <&reset RESET_RTC>;
+};
+
 &saradc {
 	compatible = "amlogic,meson8-saradc", "amlogic,meson-saradc";
 	clocks = <&clkc CLKID_XTAL>,
diff --git a/arch/arm/boot/dts/meson8b-ec100.dts b/arch/arm/boot/dts/meson8b-ec100.dts
index 3ca9638fad09..9bf4249cb60d 100644
--- a/arch/arm/boot/dts/meson8b-ec100.dts
+++ b/arch/arm/boot/dts/meson8b-ec100.dts
@@ -88,6 +88,14 @@
 		};
 	};
 
+	rtc32k_xtal: rtc32k-xtal-clk {
+		/* X2 in the schematics */
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+		clock-output-names = "RTC32K";
+		#clock-cells = <0>;
+	};
+
 	usb_vbus: regulator-usb-vbus {
 		/*
 		 * Silergy SY6288CCAC-GP 2A Power Distribution Switch.
@@ -347,6 +355,12 @@
 	clock-names = "clkin0";
 };
 
+&rtc {
+	status = "okay";
+	clocks = <&rtc32k_xtal>;
+	vdd-supply = <&vcc_rtc>;
+};
+
 /* exposed through the pin headers labeled "URDUG1" on the top of the PCB */
 &uart_AO {
 	status = "okay";
diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts
index 0157646e3a89..f3ad9397f670 100644
--- a/arch/arm/boot/dts/meson8b-odroidc1.dts
+++ b/arch/arm/boot/dts/meson8b-odroidc1.dts
@@ -124,6 +124,14 @@
 		io-channels = <&saradc 8>;
 	};
 
+	rtc32k_xtal: rtc32k-xtal-clk {
+		/* X3 in the schematics */
+		compatible = "fixed-clock";
+		clock-frequency = <32768>;
+		clock-output-names = "RTC32K";
+		#clock-cells = <0>;
+	};
+
 	vcc_1v8: regulator-vcc-1v8 {
 		/*
 		 * RICHTEK RT9179 configured for a fixed output voltage of
@@ -345,6 +353,12 @@
 	clock-names = "clkin0";
 };
 
+&rtc {
+	/* needs to be enabled manually when a battery is connected */
+	clocks = <&rtc32k_xtal>;
+	vdd-supply = <&vdd_rtc>;
+};
+
 &uart_AO {
 	status = "okay";
 	pinctrl-0 = <&uart_ao_a_pins>;
diff --git a/arch/arm/boot/dts/meson8b.dtsi b/arch/arm/boot/dts/meson8b.dtsi
index df42e48f1cc1..800cd65fc50a 100644
--- a/arch/arm/boot/dts/meson8b.dtsi
+++ b/arch/arm/boot/dts/meson8b.dtsi
@@ -510,6 +510,11 @@
 	compatible = "amlogic,meson8b-pwm";
 };
 
+&rtc {
+	compatible = "amlogic,meson8b-rtc";
+	resets = <&reset RESET_RTC>;
+};
+
 &saradc {
 	compatible = "amlogic,meson8b-saradc", "amlogic,meson-saradc";
 	clocks = <&clkc CLKID_XTAL>,