This adds the uart_AO_B serial port and the related pinctrl nodes to meson-gx. Due to a bug in the current GXBB and GXL/GXM pinctrl code uart_AO_B could not be used when uart_AO(_A) was enabled at the same time. The reason for this is that uart_AO_A and uart_AO_B were both trying to request the same pin as their RX pin (GPIOAO_1). uart_AO_B also requests a second pin for it's RX (GPIOAO_5), which does not make any sense. Thus uart_AO_B is changed to only use GPIOAO_5 for RX and GPIOAO_4 for TX, which is also what the Amlogic reference kernel does. Adding uart_AO_B is preparation work for adding support for the Khadas VIM and VIM Pro boards, as these are both exposing uart_AO_B on the pin-header. Martin Blumenstingl (2): pinctrl: meson: fix uart_ao_b for GXBB and GXL/GXM ARM64: dts: meson-gx: add the missing uart_AO_B arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 8 ++++++++ arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 7 +++++++ arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 7 +++++++ drivers/pinctrl/meson/pinctrl-meson-gxbb.c | 7 +++---- drivers/pinctrl/meson/pinctrl-meson-gxl.c | 7 +++---- 5 files changed, 28 insertions(+), 8 deletions(-) -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
