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
   6 Content-Disposition: inline
   7 Content-Transfer-Encoding: 8bit
   8 Content-Type: text/plain; charset="utf-8"
   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 --- a/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  16 +++ b/arch/arm64/boot/dts/marvell/armada-3720-uDPU.dts
  17 @@ -117,18 +117,36 @@
  18         };
  19  };
  20
  21 +&pinctrl_nb {
  22 +       i2c1_recovery_pins: i2c1-recovery-pins {
  23 +               groups = "i2c1";
  24 +               function = "gpio";
  25 +       };
  26 +
  27 +       i2c2_recovery_pins: i2c2-recovery-pins {
  28 +               groups = "i2c2";
  29 +               function = "gpio";
  30 +       };
  31 +};
  32 +
  33  &i2c0 {
  34         status = "okay";
  35 -       pinctrl-names = "default";
  36 +       pinctrl-names = "default", "recovery";
  37         pinctrl-0 = <&i2c1_pins>;
  38 +       pinctrl-1 = <&i2c1_recovery_pins>;
  39         /delete-property/mrvl,i2c-fast-mode;
  40 +       scl-gpios = <&gpionb 0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  41 +       sda-gpios = <&gpionb 1 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  42  };
  43
  44  &i2c1 {
  45         status = "okay";
  46 -       pinctrl-names = "default";
  47 +       pinctrl-names = "default", "recovery";
  48         pinctrl-0 = <&i2c2_pins>;
  49 +       pinctrl-1 = <&i2c2_recovery_pins>;
  50         /delete-property/mrvl,i2c-fast-mode;
  51 +       scl-gpios = <&gpionb 2 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  52 +       sda-gpios = <&gpionb 3 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
  53
  54         lm75@48 {
  55                 status = "okay";