target/linux/mvebu/patches-5.4/023-arm64-dts-add-uDPU-i2c-bus-recovery.patch

   1 From 11b2af36cc874027ce701c5784cb957c99c7de3d Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@armlinux.org.uk>
   3 Date: Wed, 6 May 2020 10:40:37 +0100
   4 Subject: [PATCH] arm64: dts: add uDPU i2c bus recovery
   5
   6 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
   7 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
   8 Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
   9 ---
  10  .../boot/dts/marvell/armada-3720-uDPU.dts     | 22 +++++++++++++++++--
  11  1 file changed, 20 insertions(+), 2 deletions(-)
  12
  13 --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  14 +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  15 @@ -117,18 +117,36 @@
  16         };
  17  };
  18
  19 +&pinctrl_nb {
  20 +       i2c1_recovery_pins: i2c1-recovery-pins {
  21 +               groups = "i2c1";
  22 +               function = "gpio";
  23 +       };
  24 +
  25 +       i2c2_recovery_pins: i2c2-recovery-pins {
  26 +               groups = "i2c2";
  27 +               function = "gpio";
  28 +       };
  29 +};
  30 +
  31  &i2c0 {
  32         status = "okay";
  33 -       pinctrl-names = "default";
  34 +       pinctrl-names = "default", "recovery";
  35         pinctrl-0 = <&i2c1_pins>;
  36 +       pinctrl-1 = <&i2c1_recovery_pins>;
  37         /delete-property/mrvl,i2c-fast-mode;
  38 +       scl-gpios = <&gpionb 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  39 +       sda-gpios = <&gpionb 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  40  };
  41
  42  &i2c1 {
  43         status = "okay";
  44 -       pinctrl-names = "default";
  45 +       pinctrl-names = "default", "recovery";
  46         pinctrl-0 = <&i2c2_pins>;
  47 +       pinctrl-1 = <&i2c2_recovery_pins>;
  48         /delete-property/mrvl,i2c-fast-mode;
  49 +       scl-gpios = <&gpionb 2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  50 +       sda-gpios = <&gpionb 3 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  51
  52         lm75@48 {
  53                 status = "okay";