diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0140-overlays-Add-addr-parameter-to-i2c-rtc-gpio.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0140-overlays-Add-addr-parameter-to-i2c-rtc-gpio.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0140-overlays-Add-addr-parameter-to-i2c-rtc-gpio.patch b/target/linux/bcm27xx/patches-4.19/950-0140-overlays-Add-addr-parameter-to-i2c-rtc-gpio.patch new file mode 100644 index 0000000000..ef8e1eaaa8 --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0140-overlays-Add-addr-parameter-to-i2c-rtc-gpio.patch @@ -0,0 +1,111 @@ +From 20dbf906033167e7c4296eee07437d52627d8ccf Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Mon, 9 Jul 2018 21:11:32 +0100 +Subject: [PATCH] overlays: Add addr parameter to i2c-rtc (& -gpio) + +See: https://github.com/raspberrypi/linux/issues/2611 + +Signed-off-by: Phil Elwell <phil@raspberrypi.org> +--- + arch/arm/boot/dts/overlays/README | 10 +++++++ + .../dts/overlays/i2c-rtc-gpio-overlay.dts | 28 +++++++++++++++++++ + .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 11 ++++++++ + 3 files changed, 49 insertions(+) + +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -817,6 +817,10 @@ Params: abx80x Select o + + 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 o + + 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 o + + 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) + +--- 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"; +--- 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"; |