| Message ID | 1406136551-8015-1-git-send-email-l.stach@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Jul 23, 2014 at 07:29:11PM +0200, Lucas Stach wrote: > Everything in the PCI specification assumes devices to be > enumerable on startup. This is only possible if they have > power available. > > A future improvement may allow this regulator to be switched > off for D3hot and D3cold power states, but there is a lot > of work to do the pcie host controller side for this to work. > To keep things simple always enable the regulator for now. > > Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Applied, thanks.
diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi index 40ea36534643..f35c06102969 100644 --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi @@ -54,6 +54,19 @@ gpio = <&gpio4 10 0>; enable-active-high; }; + + reg_pcie: regulator@3 { + compatible = "regulator-fixed"; + reg = <3>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pcie_reg>; + regulator-name = "MPCIE_3V3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&gpio3 19 0>; + regulator-always-on; + enable-active-high; + }; }; gpio-keys { @@ -399,6 +412,12 @@ >; }; + pinctrl_pcie_reg: pciereggrp { + fsl,pins = < + MX6QDL_PAD_EIM_D19__GPIO3_IO19 0x1b0b0 + >; + }; + pinctrl_pwm1: pwm1grp { fsl,pins = < MX6QDL_PAD_SD1_DAT3__PWM1_OUT 0x1b0b1
Everything in the PCI specification assumes devices to be enumerable on startup. This is only possible if they have power available. A future improvement may allow this regulator to be switched off for D3hot and D3cold power states, but there is a lot of work to do the pcie host controller side for this to work. To keep things simple always enable the regulator for now. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> --- v2: - rename to MPCIE_3V3 - add proper pinctrl --- arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)