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The existing regulator node reg_pcie0 is used to control the > pin56 W_DISABLE1 on the M.2 connector, which is also required by > SDIO-based WLAN modules. > > To prepare for adding M.2 SDIO WiFi support, rename the regulator node > from reg_pcie0 to reg_m2_wlan and update its pinctrl and regulator > name accordingly. This allows the same GPIO-controlled power rail to be > reused for both PCIe and SDIO WLAN cards. > > No functional behavior changes other than the rename. > > Signed-off-by: Sherry Sun > --- > arch/arm64/boot/dts/freescale/imx8mp-evk.dts | 22 ++++++++++---------- > 1 file changed, 11 insertions(+), 11 deletions(-) > > diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts > index a1269c7a6cc2..f86d6b428a47 100644 > --- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts > +++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts > @@ -134,11 +134,11 @@ reg_audio_pwr: regulator-audio-pwr { > enable-active-high; > }; > > - reg_pcie0: regulator-pcie { > + reg_m2_wlan: regulator-wlan { Needn't complex rename, just add second label reg_m2_wlan: reg_pcie0: regulator-pcie { Frank > compatible = "regulator-fixed"; > pinctrl-names = "default"; > - pinctrl-0 = <&pinctrl_pcie0_reg>; > - regulator-name = "MPCIE_3V3"; > + pinctrl-0 = <&pinctrl_reg_wlan>; > + regulator-name = "WLAN_EN"; > regulator-min-microvolt = <3300000>; > regulator-max-microvolt = <3300000>; > gpio = <&gpio2 6 GPIO_ACTIVE_HIGH>; > @@ -764,8 +764,8 @@ &pcie0 { > pinctrl-0 = <&pinctrl_pcie0>; > /* This property is deprecated, use reset-gpios from the Root Port node. */ > reset-gpio = <&gpio2 7 GPIO_ACTIVE_LOW>; > - vpcie-supply = <®_pcie0>; > - vpcie3v3aux-supply = <®_pcie0>; > + vpcie-supply = <®_m2_wlan>; > + vpcie3v3aux-supply = <®_m2_wlan>; > supports-clkreq; > status = "okay"; > }; > @@ -1067,12 +1067,6 @@ MX8MP_IOMUXC_SD1_DATA5__GPIO2_IO07 0x40 > >; > }; > > - pinctrl_pcie0_reg: pcie0reggrp { > - fsl,pins = < > - MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x140 > - >; > - }; > - > pinctrl_pdm: pdmgrp { > fsl,pins = < > MX8MP_IOMUXC_SAI5_RXC__AUDIOMIX_PDM_CLK 0xd6 > @@ -1119,6 +1113,12 @@ MX8MP_IOMUXC_SD2_RESET_B__GPIO2_IO19 0x40 > >; > }; > > + pinctrl_reg_wlan: regwlangrp { > + fsl,pins = < > + MX8MP_IOMUXC_SD1_DATA4__GPIO2_IO06 0x140 > + >; > + }; > + > pinctrl_uart1: uart1grp { > fsl,pins = < > MX8MP_IOMUXC_UART1_RXD__UART1_DCE_RX 0x140 > -- > 2.37.1 >