overlays: Add addr parameter to i2c-rtc (& -gpio)

See: #2611 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
raspberrypi · May 7, 2019 · bccd645 · bccd645
1 parent 5a170b7
commit bccd645
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diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
@@ -817,6 +817,10 @@ Params: abx80x                  Select one of the ABx80x family:
 
         pcf8563                 Select the PCF8563 device
 
+        addr                    Sets the address for the RTC. Note that the
+                                device must be configured to use the specified
+                                address.
+
         trickle-diode-type      Diode type for trickle charge - "standard" or
                                 "schottky" (ABx80x only)
 
@@ -841,6 +845,8 @@ Params: abx80x                  Select one of the ABx80x family:
 
         ds3231                  Select the DS3231 device
 
+        m41t62                  Select the M41T62 device
+
         mcp7940x                Select the MCP7940x device
 
         mcp7941x                Select the MCP7941x device
@@ -851,6 +857,10 @@ Params: abx80x                  Select one of the ABx80x family:
 
         pcf8563                 Select the PCF8563 device
 
+        addr                    Sets the address for the RTC. Note that the
+                                device must be configured to use the specified
+                                address.
+
         trickle-diode-type      Diode type for trickle charge - "standard" or
                                 "schottky" (ABx80x only)
 

diff --git a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
@@ -159,6 +159,21 @@
 		};
 	};
 
+	fragment@10 {
+		target = <&i2c_arm>;
+		__dormant__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			m41t62: m41t62@68 {
+				compatible = "st,m41t62";
+				reg = <0x68>;
+				status = "okay";
+			};
+		};
+	};
+
 	__overrides__ {
 		abx80x = <0>,"+1";
 		ds1307 = <0>,"+2";
@@ -169,6 +184,19 @@
 		pcf2127 = <0>,"+7";
 		pcf8523 = <0>,"+8";
 		pcf8563 = <0>,"+9";
+		m41t62 = <0>,"+10";
+
+		addr = <&abx80x>, "reg:0",
+		       <&ds1307>, "reg:0",
+		       <&ds1339>, "reg:0",
+		       <&ds3231>, "reg:0",
+		       <&mcp7940x>, "reg:0",
+		       <&mcp7941x>, "reg:0",
+		       <&pcf2127>, "reg:0",
+		       <&pcf8523>, "reg:0",
+		       <&pcf8563>, "reg:0",
+		       <&m41t62>, "reg:0";
+
 		trickle-diode-type = <&abx80x>,"abracon,tc-diode";
 		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
 					<&abx80x>,"abracon,tc-resistor";

diff --git a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
@@ -169,6 +169,17 @@
 		pcf8523 = <0>,"+7";
 		pcf8563 = <0>,"+8";
 		m41t62 = <0>,"+9";
+
+		addr = <&abx80x>, "reg:0",
+		       <&ds1307>, "reg:0",
+		       <&ds1339>, "reg:0",
+		       <&ds3231>, "reg:0",
+		       <&mcp7940x>, "reg:0",
+		       <&mcp7941x>, "reg:0",
+		       <&pcf2127>, "reg:0",
+		       <&pcf8523>, "reg:0",
+		       <&pcf8563>, "reg:0",
+		       <&m41t62>, "reg:0";
 		trickle-diode-type = <&abx80x>,"abracon,tc-diode";
 		trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
 					<&abx80x>,"abracon,tc-resistor";