package/boot/uboot-mediatek/patches/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch

   1 From a3ba6adb70c91ec3b9312c3a025faa44acd39cfa Mon Sep 17 00:00:00 2001
   2 From: Weijie Gao <weijie.gao@mediatek.com>
   3 Date: Wed, 13 Jul 2022 11:16:39 +0800
   4 Subject: [PATCH] arm: dts: mt7622: remove default pinctrl of uart0
   5
   6 Currently u-boot running on mt7622 will print an warning log at beginning:
   7 > serial_mtk serial@11002000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19
   8
   9 It turns out that the pinctrl uclass can't work properly in board_f stage.
  10
  11 Since the uart0 is the default UART device used by bootrom, and will be
  12 initialized in both bootrom and tf-a bl2. It's ok not to setup pinctrl for
  13 uart0 in u-boot.
  14
  15 This patch removes the default pinctrl of uart0 to suppress the unwanted
  16 warning.
  17
  18 Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
  19 ---
  20  arch/arm/dts/mt7622-bananapi-bpi-r64.dts | 2 --
  21  arch/arm/dts/mt7622-rfb.dts              | 2 --
  22  2 files changed, 4 deletions(-)
  23
  24 --- a/arch/arm/dts/mt7622-bananapi-bpi-r64.dts
  25 +++ b/arch/arm/dts/mt7622-bananapi-bpi-r64.dts
  26 @@ -182,8 +182,6 @@
  27  };
  28
  29  &uart0 {
  30 -       pinctrl-names = "default";
  31 -       pinctrl-0 = <&uart0_pins>;
  32         status = "okay";
  33  };
  34
  35 --- a/arch/arm/dts/mt7622-rfb.dts
  36 +++ b/arch/arm/dts/mt7622-rfb.dts
  37 @@ -189,8 +189,6 @@
  38  };
  39
  40  &uart0 {
  41 -       pinctrl-names = "default";
  42 -       pinctrl-0 = <&uart0_pins>;
  43         status = "okay";
  44  };
  45