target/linux/pistachio/patches-5.15/903-MIPS-DTS-img-marduk-Add-NXP-SC16IS752IPW.patch

   1 From ad4eba0c36ce8af6ab9ea1bc163e4c1ac7c271c3 Mon Sep 17 00:00:00 2001
   2 From: Hauke Mehrtens <hauke@hauke-m.de>
   3 Date: Sat, 15 Aug 2020 16:09:02 +0200
   4 Subject: [PATCH 903/904] MIPS: DTS: img: marduk: Add NXP SC16IS752IPW
   5
   6 Add NXP SC16IS752IPW SPI-UART controller to device tree.
   7
   8 This controller drives 2 UARTs and 7 LEDs on the board.
   9
  10 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  11 ---
  12  arch/mips/boot/dts/img/pistachio_marduk.dts | 51 +++++++++++++++++++++
  13  1 file changed, 51 insertions(+)
  14
  15 --- a/arch/mips/boot/dts/img/pistachio_marduk.dts
  16 +++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
  17 @@ -46,6 +46,46 @@
  18                 regulator-max-microvolt = <1800000>;
  19         };
  20
  21 +       /* EXT clock from ca8210 is fed to sc16is752 */
  22 +       ca8210_ext_clk: ca8210-ext-clk {
  23 +               compatible = "fixed-clock";
  24 +               #clock-cells = <0>;
  25 +               clock-frequency = <16000000>;
  26 +               clock-output-names = "ca8210_ext_clock";
  27 +       };
  28 +
  29 +       gpioleds {
  30 +               compatible = "gpio-leds";
  31 +               user1 {
  32 +                       label = "marduk:red:user1";
  33 +                       gpios = <&sc16is752 0 GPIO_ACTIVE_LOW>;
  34 +               };
  35 +               user2 {
  36 +                       label = "marduk:red:user2";
  37 +                       gpios = <&sc16is752 1 GPIO_ACTIVE_LOW>;
  38 +               };
  39 +               user3 {
  40 +                       label = "marduk:red:user3";
  41 +                       gpios = <&sc16is752 2 GPIO_ACTIVE_LOW>;
  42 +               };
  43 +               user4 {
  44 +                       label = "marduk:red:user4";
  45 +                       gpios = <&sc16is752 3 GPIO_ACTIVE_LOW>;
  46 +               };
  47 +               user5 {
  48 +                       label = "marduk:red:user5";
  49 +                       gpios = <&sc16is752 4 GPIO_ACTIVE_LOW>;
  50 +               };
  51 +               user6 {
  52 +                       label = "marduk:red:user6";
  53 +                       gpios = <&sc16is752 5 GPIO_ACTIVE_LOW>;
  54 +               };
  55 +               user7 {
  56 +                       label = "marduk:red:user7";
  57 +                       gpios = <&sc16is752 6 GPIO_ACTIVE_LOW>;
  58 +               };
  59 +       };
  60 +
  61         led-controller {
  62                 compatible = "pwm-leds";
  63
  64 @@ -96,6 +136,17 @@
  65                 extclock-freq = <16000000>;
  66                 extclock-gpio = <2>;
  67         };
  68 +
  69 +       sc16is752: sc16is752@1 {
  70 +               compatible = "nxp,sc16is752";
  71 +               reg = <1>;
  72 +               clocks = <&ca8210_ext_clk>;
  73 +               spi-max-frequency = <4000000>;
  74 +               interrupt-parent = <&gpio0>;
  75 +               interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
  76 +               gpio-controller;
  77 +               #gpio-cells = <2>;
  78 +       };
  79  };
  80
  81  &spfi1 {