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The mux is controlled by a GPIO. Add a pinctrl-based multiplexer node to describe this routing and ensure proper probe ordering of the dependent devices. Signed-off-by: Frank Li --- arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot= /dts/freescale/imx8mp-evk.dts index b256be710ea1281465f5cecc7a3b979f2c068e43..1341ee27239fd41a26117adc902= 3524ce50420a7 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts @@ -50,6 +50,25 @@ status { }; }; =20 + can_mux: mux-controller-0 { + compatible =3D "gpio-mux"; + #mux-control-cells =3D <0>; + #mux-state-cells =3D <1>; + mux-gpios =3D <&pca6416 3 GPIO_ACTIVE_HIGH>; + }; + + can_mux_pinctrl: pinctrl-gpiomux { + compatible =3D "pinctrl-multiplexer"; + + can_fun: can-grp { + mux-states =3D <&can_mux 1>; + }; + + pdm_fun: pdm-grp { + mux-states =3D <&can_mux 0>; + }; + }; + memory@40000000 { device_type =3D "memory"; reg =3D <0x0 0x40000000 0 0xc0000000>, @@ -446,7 +465,7 @@ &flexcan1 { =20 &flexcan2 { pinctrl-names =3D "default"; - pinctrl-0 =3D <&pinctrl_flexcan2>; + pinctrl-0 =3D <&pinctrl_flexcan2>, <&can_fun>; phys =3D <&flexcan_phy 1>; status =3D "disabled";/* can2 pin conflict with pdm */ }; @@ -712,7 +731,7 @@ &lcdif3 { &micfil { #sound-dai-cells =3D <0>; pinctrl-names =3D "default"; - pinctrl-0 =3D <&pinctrl_pdm>; + pinctrl-0 =3D <&pinctrl_pdm>, <&pdm_fun>; assigned-clocks =3D <&clk IMX8MP_CLK_PDM>; assigned-clock-parents =3D <&clk IMX8MP_AUDIO_PLL1_OUT>; assigned-clock-rates =3D <196608000>; --=20 2.43.0