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From 8c16d549cd0b9e9cf890ac3ead5d58d92590140f Mon Sep 17 00:00:00 2001
From: "Kevin P. Fleming" <kevin+linux@km6g.us>
Date: Mon, 1 Jun 2020 07:02:00 -0400
Subject: [PATCH] Add Micro Crystal RV-1805 to i2c-rtc overlays
While the RV-1805 is supported by the rtc-abx80x driver via
auto-detection, in order for it to be initialized properly
it must be explcitly selected.
Signed-off-by: Kevin P. Fleming <kevin+linux@km6g.us>
---
arch/arm/boot/dts/overlays/README | 12 +++++---
.../dts/overlays/i2c-rtc-gpio-overlay.dts | 28 ++++++++++++++++---
.../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 27 ++++++++++++++++--
3 files changed, 56 insertions(+), 11 deletions(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1196,6 +1196,8 @@ Params: abx80x Select o
pcf8563 Select the PCF8563 device
+ rv1805 Select the Micro Crystal RV1805 device
+
rv3028 Select the Micro Crystal RV3028 device
addr Sets the address for the RTC. Note that the
@@ -1203,10 +1205,10 @@ Params: abx80x Select o
address.
trickle-diode-type Diode type for trickle charge - "standard" or
- "schottky" (ABx80x only)
+ "schottky" (ABx80x and RV1805 only)
trickle-resistor-ohms Resistor value for trickle charge (DS1339,
- ABx80x, RV3028)
+ ABx80x, RV1805, RV3028)
wakeup-source Specify that the RTC can be used as a wakeup
source
@@ -1243,6 +1245,8 @@ Params: abx80x Select o
pcf8563 Select the PCF8563 device
+ rv1805 Select the Micro Crystal RV1805 device
+
rv3028 Select the Micro Crystal RV3028 device
addr Sets the address for the RTC. Note that the
@@ -1250,10 +1254,10 @@ Params: abx80x Select o
address.
trickle-diode-type Diode type for trickle charge - "standard" or
- "schottky" (ABx80x only)
+ "schottky" (ABx80x and RV1805 only)
trickle-resistor-ohms Resistor value for trickle charge (DS1339,
- ABx80x, RV3028)
+ ABx80x, RV1805, RV3028)
wakeup-source Specify that the RTC can be used as a wakeup
source
--- a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
@@ -204,6 +204,23 @@
};
};
+ fragment@13 {
+ target = <&i2c_gpio>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ rv1805: rv1805@69 {
+ compatible = "microcrystal,rv1805";
+ reg = <0x69>;
+ abracon,tc-diode = "standard";
+ abracon,tc-resistor = <0>;
+ status = "okay";
+ };
+ };
+ };
+
__overrides__ {
abx80x = <0>,"+1";
ds1307 = <0>,"+2";
@@ -217,6 +234,7 @@
m41t62 = <0>,"+10";
rv3028 = <0>,"+11";
pcf2129 = <0>,"+12";
+ rv1805 = <0>,"+13";
addr = <&abx80x>, "reg:0",
<&ds1307>, "reg:0",
@@ -226,12 +244,14 @@
<&mcp7941x>, "reg:0",
<&pcf8523>, "reg:0",
<&pcf8563>, "reg:0",
- <&m41t62>, "reg:0";
-
- trickle-diode-type = <&abx80x>,"abracon,tc-diode";
+ <&m41t62>, "reg:0",
+ <&rv1805>, "reg:0";
+ trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+ <&rv1805>,"abracon,tc-diode";
trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
<&abx80x>,"abracon,tc-resistor:0",
- <&rv3028>,"trickle-resistor-ohms:0";
+ <&rv3028>,"trickle-resistor-ohms:0",
+ <&rv1805>,"abracon,tc-resistor:0";
backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
wakeup-source = <&ds1339>,"wakeup-source?",
<&ds3231>,"wakeup-source?",
--- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
+++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
@@ -203,6 +203,23 @@
};
};
+ fragment@13 {
+ target = <&i2c_arm>;
+ __dormant__ {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "okay";
+
+ rv1805: rv1805@69 {
+ compatible = "microcrystal,rv1805";
+ reg = <0x69>;
+ abracon,tc-diode = "standard";
+ abracon,tc-resistor = <0>;
+ status = "okay";
+ };
+ };
+ };
+
__overrides__ {
abx80x = <0>,"+0";
ds1307 = <0>,"+1";
@@ -217,6 +234,7 @@
rv3028 = <0>,"+10";
pcf2129 = <0>,"+11";
pcf85363 = <0>,"+12";
+ rv1805 = <0>,"+13";
addr = <&abx80x>, "reg:0",
<&ds1307>, "reg:0",
@@ -226,11 +244,14 @@
<&mcp7941x>, "reg:0",
<&pcf8523>, "reg:0",
<&pcf8563>, "reg:0",
- <&m41t62>, "reg:0";
- trickle-diode-type = <&abx80x>,"abracon,tc-diode";
+ <&m41t62>, "reg:0",
+ <&rv1805>, "reg:0";
+ trickle-diode-type = <&abx80x>,"abracon,tc-diode",
+ <&rv1805>,"abracon,tc-diode";
trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
<&abx80x>,"abracon,tc-resistor:0",
- <&rv3028>,"trickle-resistor-ohms:0";
+ <&rv3028>,"trickle-resistor-ohms:0",
+ <&rv1805>,"abracon,tc-resistor:0";
backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
wakeup-source = <&ds1339>,"wakeup-source?",
<&ds3231>,"wakeup-source?",
|
