diff options
Diffstat (limited to 'package/boot/uboot-mediatek/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch')
| -rw-r--r-- | package/boot/uboot-mediatek/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/package/boot/uboot-mediatek/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch b/package/boot/uboot-mediatek/001-mtk-0100-arm-dts-mt7622-remove-default-pinctrl-of-uart0.patch new file mode 100644 index 0000000000..603896f260 --- /dev/null +++ b/package/boot/uboot-mediatek/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@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@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@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 +@@ -189,8 +189,6 @@ + }; + + &uart0 { +- pinctrl-names = "default"; +- pinctrl-0 = <&uart0_pins>; + status = "okay"; + }; + |