[openwrt/openwrt] uboot-mediatek: backport pinctrl fix to avoid error message

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/87e09b692bd8537abbb1c691cec8c642594a9141

commit 87e09b692bd8537abbb1c691cec8c642594a9141
Author: Daniel Golle <daniel at makrotopia.org>
AuthorDate: Wed Aug 10 02:07:04 2022 +0200

    uboot-mediatek: backport pinctrl fix to avoid error message
    
    Import a3ba6adb70 arm: dts: mt7622: remove default pinctrl of uart0
    and apply also to locally added boards.
    
    Signed-off-by: Daniel Golle <daniel at makrotopia.org>
---
 ...ts-mt7622-remove-default-pinctrl-of-uart0.patch | 45 ++++++++++++++++++++++
 .../402-update-bananapi-bpi-r64-device-tree.patch  |  4 +-
 .../patches/410-add-linksys-e8450.patch            |  4 +-
 .../patches/412-add-ubnt-unifi-6-lr.patch          |  4 +-
 4 files changed, 49 insertions(+), 8 deletions(-)

diff --git a/package/boot/uboot-mediatek/patches/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch b/package/boot/uboot-mediatek/patches/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch
new file mode 100644
index 0000000000..63e189f56c
--- /dev/null
+++ b/package/boot/uboot-mediatek/patches/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch
@@ -0,0 +1,45 @@
+From a3ba6adb70c91ec3b9312c3a025faa44acd39cfa Mon Sep 17 00:00:00 2001
+From: Weijie Gao <weijie.gao at mediatek.com>
+Date: Wed, 13 Jul 2022 11:16:39 +0800
+Subject: [PATCH] arm: dts: mt7622: remove default pinctrl of uart0
+
+Currently u-boot running on mt7622 will print an warning log at beginning:
+> serial_mtk serial at 11002000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19
+
+It turns out that the pinctrl uclass can't work properly in board_f stage.
+
+Since the uart0 is the default UART device used by bootrom, and will be
+initialized in both bootrom and tf-a bl2. It's ok not to setup pinctrl for
+uart0 in u-boot.
+
+This patch removes the default pinctrl of uart0 to suppress the unwanted
+warning.
+
+Signed-off-by: Weijie Gao <weijie.gao at mediatek.com>
+---
+ arch/arm/dts/mt7622-bananapi-bpi-r64.dts | 2 --
+ arch/arm/dts/mt7622-rfb.dts              | 2 --
+ 2 files changed, 4 deletions(-)
+
+--- a/arch/arm/dts/mt7622-bananapi-bpi-r64.dts
++++ b/arch/arm/dts/mt7622-bananapi-bpi-r64.dts
+@@ -182,8 +182,6 @@
+ };
+ 
+ &uart0 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&uart0_pins>;
+ 	status = "okay";
+ };
+ 
+--- a/arch/arm/dts/mt7622-rfb.dts
++++ b/arch/arm/dts/mt7622-rfb.dts
+@@ -196,8 +196,6 @@
+ };
+ 
+ &uart0 {
+-	pinctrl-names = "default";
+-	pinctrl-0 = <&uart0_pins>;
+ 	status = "okay";
+ };
+ 
diff --git a/package/boot/uboot-mediatek/patches/402-update-bananapi-bpi-r64-device-tree.patch b/package/boot/uboot-mediatek/patches/402-update-bananapi-bpi-r64-device-tree.patch
index 781a685721..7aa0ca9c88 100644
--- a/package/boot/uboot-mediatek/patches/402-update-bananapi-bpi-r64-device-tree.patch
+++ b/package/boot/uboot-mediatek/patches/402-update-bananapi-bpi-r64-device-tree.patch
@@ -51,7 +51,7 @@
  	reg_1p8v: regulator-1p8v {
  		compatible = "regulator-fixed";
  		regulator-name = "fixed-1.8V";
-@@ -199,7 +236,7 @@
+@@ -197,7 +234,7 @@
  	status = "okay";
  	bus-width = <8>;
  	max-frequency = <50000000>;
@@ -60,7 +60,7 @@
  	vmmc-supply = <&reg_3p3v>;
  	vqmmc-supply = <&reg_3p3v>;
  	non-removable;
-@@ -210,7 +247,7 @@
+@@ -208,7 +245,7 @@
  	pinctrl-0 = <&mmc1_pins_default>;
  	status = "okay";
  	bus-width = <4>;
diff --git a/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch b/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
index c4a51aa442..decb485042 100644
--- a/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
+++ b/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
@@ -139,7 +139,7 @@
 +CONFIG_USB_STORAGE=y
 --- /dev/null
 +++ b/arch/arm/dts/mt7622-linksys-e8450-ubi.dts
-@@ -0,0 +1,195 @@
+@@ -0,0 +1,193 @@
 +// SPDX-License-Identifier: GPL-2.0
 +/*
 + * Copyright (c) 2019 MediaTek Inc.
@@ -302,8 +302,6 @@
 +};
 +
 +&uart0 {
-+	pinctrl-names = "default";
-+	pinctrl-0 = <&uart0_pins>;
 +	status = "okay";
 +};
 +
diff --git a/package/boot/uboot-mediatek/patches/412-add-ubnt-unifi-6-lr.patch b/package/boot/uboot-mediatek/patches/412-add-ubnt-unifi-6-lr.patch
index efe58f3042..1e5c4e8a16 100644
--- a/package/boot/uboot-mediatek/patches/412-add-ubnt-unifi-6-lr.patch
+++ b/package/boot/uboot-mediatek/patches/412-add-ubnt-unifi-6-lr.patch
@@ -144,7 +144,7 @@
 +CONFIG_SPI_FLASH_XMC=y
 --- /dev/null
 +++ b/arch/arm/dts/mt7622-ubnt-unifi-6-lr.dts
-@@ -0,0 +1,202 @@
+@@ -0,0 +1,200 @@
 +// SPDX-License-Identifier: GPL-2.0
 +/*
 + * Copyright (c) 2019 MediaTek Inc.
@@ -311,8 +311,6 @@
 +};
 +
 +&uart0 {
-+	pinctrl-names = "default";
-+	pinctrl-0 = <&uart0_pins>;
 +	status = "okay";
 +};
 +