target/linux/bcm27xx/patches-4.19/950-0140-overlays-Add-addr-parameter-to-i2c-rtc-gpio.patch

   1 From 20dbf906033167e7c4296eee07437d52627d8ccf Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Mon, 9 Jul 2018 21:11:32 +0100
   4 Subject: [PATCH] overlays: Add addr parameter to i2c-rtc (& -gpio)
   5
   6 See: https://github.com/raspberrypi/linux/issues/2611
   7
   8 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
   9 ---
  10  arch/arm/boot/dts/overlays/README             | 10 +++++++
  11  .../dts/overlays/i2c-rtc-gpio-overlay.dts     | 28 +++++++++++++++++++
  12  .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 11 ++++++++
  13  3 files changed, 49 insertions(+)
  14
  15 --- a/arch/arm/boot/dts/overlays/README
  16 +++ b/arch/arm/boot/dts/overlays/README
  17 @@ -817,6 +817,10 @@ Params: abx80x                  Select o
  18
  19          pcf8563                 Select the PCF8563 device
  20
  21 +        addr                    Sets the address for the RTC. Note that the
  22 +                                device must be configured to use the specified
  23 +                                address.
  24 +
  25          trickle-diode-type      Diode type for trickle charge - "standard" or
  26                                  "schottky" (ABx80x only)
  27
  28 @@ -841,6 +845,8 @@ Params: abx80x                  Select o
  29
  30          ds3231                  Select the DS3231 device
  31
  32 +        m41t62                  Select the M41T62 device
  33 +
  34          mcp7940x                Select the MCP7940x device
  35
  36          mcp7941x                Select the MCP7941x device
  37 @@ -851,6 +857,10 @@ Params: abx80x                  Select o
  38
  39          pcf8563                 Select the PCF8563 device
  40
  41 +        addr                    Sets the address for the RTC. Note that the
  42 +                                device must be configured to use the specified
  43 +                                address.
  44 +
  45          trickle-diode-type      Diode type for trickle charge - "standard" or
  46                                  "schottky" (ABx80x only)
  47
  48 --- a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
  49 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
  50 @@ -159,6 +159,21 @@
  51                 };
  52         };
  53
  54 +       fragment@10 {
  55 +               target = <&i2c_arm>;
  56 +               __dormant__ {
  57 +                       #address-cells = <1>;
  58 +                       #size-cells = <0>;
  59 +                       status = "okay";
  60 +
  61 +                       m41t62: m41t62@68 {
  62 +                               compatible = "st,m41t62";
  63 +                               reg = <0x68>;
  64 +                               status = "okay";
  65 +                       };
  66 +               };
  67 +       };
  68 +
  69         __overrides__ {
  70                 abx80x = <0>,"+1";
  71                 ds1307 = <0>,"+2";
  72 @@ -169,6 +184,19 @@
  73                 pcf2127 = <0>,"+7";
  74                 pcf8523 = <0>,"+8";
  75                 pcf8563 = <0>,"+9";
  76 +               m41t62 = <0>,"+10";
  77 +
  78 +               addr = <&abx80x>, "reg:0",
  79 +                      <&ds1307>, "reg:0",
  80 +                      <&ds1339>, "reg:0",
  81 +                      <&ds3231>, "reg:0",
  82 +                      <&mcp7940x>, "reg:0",
  83 +                      <&mcp7941x>, "reg:0",
  84 +                      <&pcf2127>, "reg:0",
  85 +                      <&pcf8523>, "reg:0",
  86 +                      <&pcf8563>, "reg:0",
  87 +                      <&m41t62>, "reg:0";
  88 +
  89                 trickle-diode-type = <&abx80x>,"abracon,tc-diode";
  90                 trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
  91                                         <&abx80x>,"abracon,tc-resistor";
  92 --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  93 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
  94 @@ -169,6 +169,17 @@
  95                 pcf8523 = <0>,"+7";
  96                 pcf8563 = <0>,"+8";
  97                 m41t62 = <0>,"+9";
  98 +
  99 +               addr = <&abx80x>, "reg:0",
 100 +                      <&ds1307>, "reg:0",
 101 +                      <&ds1339>, "reg:0",
 102 +                      <&ds3231>, "reg:0",
 103 +                      <&mcp7940x>, "reg:0",
 104 +                      <&mcp7941x>, "reg:0",
 105 +                      <&pcf2127>, "reg:0",
 106 +                      <&pcf8523>, "reg:0",
 107 +                      <&pcf8563>, "reg:0",
 108 +                      <&m41t62>, "reg:0";
 109                 trickle-diode-type = <&abx80x>,"abracon,tc-diode";
 110                 trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
 111                                         <&abx80x>,"abracon,tc-resistor";