target/linux/mvebu/patches-5.4/551-v5.8-arm64-dts-add-uDPU-i2c-bus-recovery.patch

   1 From: Russell King <rmk+kernel@armlinux.org.uk>
   2 Bcc: linux@mail.armlinux.org.uk
   3 Cc: Vladimir Vid <vladimir.vid@sartura.hr>,Jason Cooper <jason@lakedaemon.net>,Andrew Lunn <andrew@lunn.ch>,Gregory Clement <gregory.clement@bootlin.com>,Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,Rob Herring <robh+dt@kernel.org>,Mark Rutland <mark.rutland@arm.com>,linux-arm-kernel@lists.infradead.org,devicetree@vger.kernel.org
   4 Subject: [PATCH] arm64: dts: add uDPU i2c bus recovery
   5 MIME-Version: 1.0
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   9
  10 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
  11 ---
  12  .../boot/dts/marvell/armada-3720-uDPU.dts     | 22 +++++++++++++++++--
  13  1 file changed, 20 insertions(+), 2 deletions(-)
  14
  15 diff --git a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  16 index 7eb6c1796cef..95d46e8d081c 100644
  17 --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  18 +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  19 @@ -117,18 +117,36 @@
  20         };
  21  };
  22
  23 +&pinctrl_nb {
  24 +       i2c1_recovery_pins: i2c1-recovery-pins {
  25 +               groups = "i2c1";
  26 +               function = "gpio";
  27 +       };
  28 +
  29 +       i2c2_recovery_pins: i2c2-recovery-pins {
  30 +               groups = "i2c2";
  31 +               function = "gpio";
  32 +       };
  33 +};
  34 +
  35  &i2c0 {
  36         status = "okay";
  37 -       pinctrl-names = "default";
  38 +       pinctrl-names = "default", "recovery";
  39         pinctrl-0 = <&i2c1_pins>;
  40 +       pinctrl-1 = <&i2c1_recovery_pins>;
  41         /delete-property/mrvl,i2c-fast-mode;
  42 +       scl-gpios = <&gpionb 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  43 +       sda-gpios = <&gpionb 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  44  };
  45
  46  &i2c1 {
  47         status = "okay";
  48 -       pinctrl-names = "default";
  49 +       pinctrl-names = "default", "recovery";
  50         pinctrl-0 = <&i2c2_pins>;
  51 +       pinctrl-1 = <&i2c2_recovery_pins>;
  52         /delete-property/mrvl,i2c-fast-mode;
  53 +       scl-gpios = <&gpionb 2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  54 +       sda-gpios = <&gpionb 3 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  55
  56         lm75@48 {
  57                 status = "okay";
  58 --
  59 2.20.1
  60