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In the public schematic for the BPI-R3 (titled "BPI-R3-MT7986A", revision "V1.1", sheet 4), the UART1_RTS and UART1_CTS pins are connected via nets to the connector CON1 (sheet 14) UART0-RTS and UART0-CTS pins. The datasheet does not show these nets as connected to anything else. These pins can be configured for either UART1 or as a GPIO, with no other alternate usage listed in the pinctrl driver. By changing the pin group definition from uart1_rx_tx to uart1 the additional RTS and CTS pins are included. Signed-off-by: Leith Bade --- arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts index 54087001cc8c..48bd1e04963c 100644 --- a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts +++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3.dts @@ -349,7 +349,7 @@ mux { uart1_pins: uart1-pins { mux { function = "uart"; - groups = "uart1_rx_tx"; + groups = "uart1"; }; };