--- /dev/null
+From 2308f60bb68de69306c542de3983be0007cad37b Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 15 Jul 2019 10:39:05 +0100
+Subject: [PATCH] overlays: Add PCF2129 RTC
+
+Add support for the PCF2129 RTC to i2c-rtc and i2c-rtc-gpio overlays.
+Also add rv3028 to i2c-rtc-gpio (it was missed previously), and don't
+attempt to set an alternate address for the PCF2127.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ arch/arm/boot/dts/overlays/README | 11 ++++-
+ .../dts/overlays/i2c-rtc-gpio-overlay.dts | 41 +++++++++++++++++--
+ .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 19 ++++++++-
+ 3 files changed, 64 insertions(+), 7 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -1022,6 +1022,8 @@ Params: abx80x Select o
+
+ pcf2127 Select the PCF2127 device
+
++ pcf2129 Select the PCF2129 device
++
+ pcf8523 Select the PCF8523 device
+
+ pcf8563 Select the PCF8563 device
+@@ -1067,10 +1069,14 @@ Params: abx80x Select o
+
+ pcf2127 Select the PCF2127 device
+
++ pcf2129 Select the PCF2129 device
++
+ pcf8523 Select the PCF8523 device
+
+ pcf8563 Select the PCF8563 device
+
++ rv3028 Select the Micro Crystal RV3028 device
++
+ addr Sets the address for the RTC. Note that the
+ device must be configured to use the specified
+ address.
+@@ -1079,11 +1085,14 @@ Params: abx80x Select o
+ "schottky" (ABx80x only)
+
+ trickle-resistor-ohms Resistor value for trickle charge (DS1339,
+- ABx80x)
++ ABx80x, RV3028)
+
+ wakeup-source Specify that the RTC can be used as a wakeup
+ source
+
++ backup-switchover-mode Backup power supply switch mode. Must be 0 for
++ off or 1 for Vdd < VBackup (RV3028 only)
++
+ i2c_gpio_sda GPIO used for I2C data (default "23")
+
+ i2c_gpio_scl GPIO used for I2C clock (default "24")
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+@@ -121,7 +121,7 @@
+ #size-cells = <0>;
+ status = "okay";
+
+- pcf2127: pcf2127@51 {
++ pcf2127@51 {
+ compatible = "nxp,pcf2127";
+ reg = <0x51>;
+ status = "okay";
+@@ -174,6 +174,36 @@
+ };
+ };
+
++ fragment@11 {
++ target = <&i2c_gpio>;
++ __dormant__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ rv3028: rv3028@52 {
++ compatible = "microcrystal,rv3028";
++ reg = <0x52>;
++ status = "okay";
++ };
++ };
++ };
++
++ fragment@12 {
++ target = <&i2c_gpio>;
++ __dormant__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ pcf2129@51 {
++ compatible = "nxp,pcf2129";
++ reg = <0x51>;
++ status = "okay";
++ };
++ };
++ };
++
+ __overrides__ {
+ abx80x = <0>,"+1";
+ ds1307 = <0>,"+2";
+@@ -185,6 +215,8 @@
+ pcf8523 = <0>,"+8";
+ pcf8563 = <0>,"+9";
+ m41t62 = <0>,"+10";
++ rv3028 = <0>,"+11";
++ pcf2129 = <0>,"+12";
+
+ addr = <&abx80x>, "reg:0",
+ <&ds1307>, "reg:0",
+@@ -192,18 +224,19 @@
+ <&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";
++ <&abx80x>,"abracon,tc-resistor",
++ <&rv3028>,"trickle-resistor-ohms:0";
++ backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
+ wakeup-source = <&ds1339>,"wakeup-source?",
+ <&ds3231>,"wakeup-source?",
+ <&mcp7940x>,"wakeup-source?",
+- <&mcp7941x>,"wakeup-source?";
++ <&mcp7941x>,"wakeup-source?";
+ i2c_gpio_sda = <&i2c_gpio>,"gpios:4";
+ i2c_gpio_scl = <&i2c_gpio>,"gpios:16";
+ i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0";
+--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
++++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+@@ -105,7 +105,7 @@
+ #size-cells = <0>;
+ status = "okay";
+
+- pcf2127: pcf2127@51 {
++ pcf2127@51 {
+ compatible = "nxp,pcf2127";
+ reg = <0x51>;
+ status = "okay";
+@@ -173,6 +173,21 @@
+ };
+ };
+
++ fragment@11 {
++ target = <&i2c_arm>;
++ __dormant__ {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ status = "okay";
++
++ pcf2129@51 {
++ compatible = "nxp,pcf2129";
++ reg = <0x51>;
++ status = "okay";
++ };
++ };
++ };
++
+ __overrides__ {
+ abx80x = <0>,"+0";
+ ds1307 = <0>,"+1";
+@@ -185,6 +200,7 @@
+ pcf8563 = <0>,"+8";
+ m41t62 = <0>,"+9";
+ rv3028 = <0>,"+10";
++ pcf2129 = <0>,"+11";
+
+ addr = <&abx80x>, "reg:0",
+ <&ds1307>, "reg:0",
+@@ -192,7 +208,6 @@
+ <&ds3231>, "reg:0",
+ <&mcp7940x>, "reg:0",
+ <&mcp7941x>, "reg:0",
+- <&pcf2127>, "reg:0",
+ <&pcf8523>, "reg:0",
+ <&pcf8563>, "reg:0",
+ <&m41t62>, "reg:0";
projects / openwrt / openwrt.git / blobdiff