target/linux/bcm27xx/patches-5.4/950-0759-Add-Micro-Crystal-RV-1805-to-i2c-rtc-overlays.patch

   1 From 8c16d549cd0b9e9cf890ac3ead5d58d92590140f Mon Sep 17 00:00:00 2001
   2 From: "Kevin P. Fleming" <kevin+linux@km6g.us>
   3 Date: Mon, 1 Jun 2020 07:02:00 -0400
   4 Subject: [PATCH] Add Micro Crystal RV-1805 to i2c-rtc overlays
   5
   6 While the RV-1805 is supported by the rtc-abx80x driver via
   7 auto-detection, in order for it to be initialized properly
   8 it must be explcitly selected.
   9
  10 Signed-off-by: Kevin P. Fleming <kevin+linux@km6g.us>
  11 ---
  12  arch/arm/boot/dts/overlays/README             | 12 +++++---
  13  .../dts/overlays/i2c-rtc-gpio-overlay.dts     | 28 ++++++++++++++++---
  14  .../arm/boot/dts/overlays/i2c-rtc-overlay.dts | 27 ++++++++++++++++--
  15  3 files changed, 56 insertions(+), 11 deletions(-)
  16
  17 --- a/arch/arm/boot/dts/overlays/README
  18 +++ b/arch/arm/boot/dts/overlays/README
  19 @@ -1196,6 +1196,8 @@ Params: abx80x                  Select o
  20
  21          pcf8563                 Select the PCF8563 device
  22
  23 +        rv1805                  Select the Micro Crystal RV1805 device
  24 +
  25          rv3028                  Select the Micro Crystal RV3028 device
  26
  27          addr                    Sets the address for the RTC. Note that the
  28 @@ -1203,10 +1205,10 @@ Params: abx80x                  Select o
  29                                  address.
  30
  31          trickle-diode-type      Diode type for trickle charge - "standard" or
  32 -                                "schottky" (ABx80x only)
  33 +                                "schottky" (ABx80x and RV1805 only)
  34
  35          trickle-resistor-ohms   Resistor value for trickle charge (DS1339,
  36 -                                ABx80x, RV3028)
  37 +                                ABx80x, RV1805, RV3028)
  38
  39          wakeup-source           Specify that the RTC can be used as a wakeup
  40                                  source
  41 @@ -1243,6 +1245,8 @@ Params: abx80x                  Select o
  42
  43          pcf8563                 Select the PCF8563 device
  44
  45 +        rv1805                  Select the Micro Crystal RV1805 device
  46 +
  47          rv3028                  Select the Micro Crystal RV3028 device
  48
  49          addr                    Sets the address for the RTC. Note that the
  50 @@ -1250,10 +1254,10 @@ Params: abx80x                  Select o
  51                                  address.
  52
  53          trickle-diode-type      Diode type for trickle charge - "standard" or
  54 -                                "schottky" (ABx80x only)
  55 +                                "schottky" (ABx80x and RV1805 only)
  56
  57          trickle-resistor-ohms   Resistor value for trickle charge (DS1339,
  58 -                                ABx80x, RV3028)
  59 +                                ABx80x, RV1805, RV3028)
  60
  61          wakeup-source           Specify that the RTC can be used as a wakeup
  62                                  source
  63 --- a/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
  64 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-gpio-overlay.dts
  65 @@ -204,6 +204,23 @@
  66                 };
  67         };
  68
  69 +       fragment@13 {
  70 +               target = <&i2c_gpio>;
  71 +               __dormant__ {
  72 +                       #address-cells = <1>;
  73 +                       #size-cells = <0>;
  74 +                       status = "okay";
  75 +
  76 +                       rv1805: rv1805@69 {
  77 +                               compatible = "microcrystal,rv1805";
  78 +                               reg = <0x69>;
  79 +                               abracon,tc-diode = "standard";
  80 +                               abracon,tc-resistor = <0>;
  81 +                               status = "okay";
  82 +                       };
  83 +               };
  84 +       };
  85 +
  86         __overrides__ {
  87                 abx80x = <0>,"+1";
  88                 ds1307 = <0>,"+2";
  89 @@ -217,6 +234,7 @@
  90                 m41t62 = <0>,"+10";
  91                 rv3028 = <0>,"+11";
  92                 pcf2129 = <0>,"+12";
  93 +               rv1805 = <0>,"+13";
  94
  95                 addr = <&abx80x>, "reg:0",
  96                        <&ds1307>, "reg:0",
  97 @@ -226,12 +244,14 @@
  98                        <&mcp7941x>, "reg:0",
  99                        <&pcf8523>, "reg:0",
 100                        <&pcf8563>, "reg:0",
 101 -                      <&m41t62>, "reg:0";
 102 -
 103 -               trickle-diode-type = <&abx80x>,"abracon,tc-diode";
 104 +                      <&m41t62>, "reg:0",
 105 +                      <&rv1805>, "reg:0";
 106 +               trickle-diode-type = <&abx80x>,"abracon,tc-diode",
 107 +                                    <&rv1805>,"abracon,tc-diode";
 108                 trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
 109                                         <&abx80x>,"abracon,tc-resistor:0",
 110 -                                       <&rv3028>,"trickle-resistor-ohms:0";
 111 +                                       <&rv3028>,"trickle-resistor-ohms:0",
 112 +                                       <&rv1805>,"abracon,tc-resistor:0";
 113                 backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
 114                 wakeup-source = <&ds1339>,"wakeup-source?",
 115                                 <&ds3231>,"wakeup-source?",
 116 --- a/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
 117 +++ b/arch/arm/boot/dts/overlays/i2c-rtc-overlay.dts
 118 @@ -203,6 +203,23 @@
 119                 };
 120         };
 121
 122 +       fragment@13 {
 123 +               target = <&i2c_arm>;
 124 +               __dormant__ {
 125 +                       #address-cells = <1>;
 126 +                       #size-cells = <0>;
 127 +                       status = "okay";
 128 +
 129 +                       rv1805: rv1805@69 {
 130 +                               compatible = "microcrystal,rv1805";
 131 +                               reg = <0x69>;
 132 +                               abracon,tc-diode = "standard";
 133 +                               abracon,tc-resistor = <0>;
 134 +                               status = "okay";
 135 +                       };
 136 +               };
 137 +       };
 138 +
 139         __overrides__ {
 140                 abx80x = <0>,"+0";
 141                 ds1307 = <0>,"+1";
 142 @@ -217,6 +234,7 @@
 143                 rv3028 = <0>,"+10";
 144                 pcf2129 = <0>,"+11";
 145                 pcf85363 = <0>,"+12";
 146 +               rv1805 = <0>,"+13";
 147
 148                 addr = <&abx80x>, "reg:0",
 149                        <&ds1307>, "reg:0",
 150 @@ -226,11 +244,14 @@
 151                        <&mcp7941x>, "reg:0",
 152                        <&pcf8523>, "reg:0",
 153                        <&pcf8563>, "reg:0",
 154 -                      <&m41t62>, "reg:0";
 155 -               trickle-diode-type = <&abx80x>,"abracon,tc-diode";
 156 +                      <&m41t62>, "reg:0",
 157 +                      <&rv1805>, "reg:0";
 158 +               trickle-diode-type = <&abx80x>,"abracon,tc-diode",
 159 +                                    <&rv1805>,"abracon,tc-diode";
 160                 trickle-resistor-ohms = <&ds1339>,"trickle-resistor-ohms:0",
 161                                         <&abx80x>,"abracon,tc-resistor:0",
 162 -                                       <&rv3028>,"trickle-resistor-ohms:0";
 163 +                                       <&rv3028>,"trickle-resistor-ohms:0",
 164 +                                       <&rv1805>,"abracon,tc-resistor:0";
 165                 backup-switchover-mode = <&rv3028>,"backup-switchover-mode:0";
 166                 wakeup-source = <&ds1339>,"wakeup-source?",
 167                                 <&ds3231>,"wakeup-source?",