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