From mboxrd@z Thu Jan  1 00:00:00 1970
From: l.stach@pengutronix.de (Lucas Stach)
Date: Fri, 15 Dec 2017 10:26:50 +0100
Subject: [PATCH 2/2] ARM: dts: imx6sx: Add support for PCI power domain
In-Reply-To: <1513304698-15169-2-git-send-email-festevam@gmail.com>
References: <1513304698-15169-1-git-send-email-festevam@gmail.com>
 <1513304698-15169-2-git-send-email-festevam@gmail.com>
Message-ID: <1513330010.20023.2.camel@pengutronix.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Am Freitag, den 15.12.2017, 00:24 -0200 schrieb Fabio Estevam:
> > From: Fabio Estevam <fabio.estevam@nxp.com>
> 
> Previously PCI support was working because the bootloader has previously
> powered up the PCI power domain.
> 
> Represent the PCI power domain, so that PCI is functional without
> relying on the PCI support from the bootloader.
> 
> Tested on a imx6sx-sdb board with no PCI support in the bootloader.
> 
> > Reported-by: Abel Vesa <abel.vesa@nxp.com>
> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>

Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

> ---
> ?arch/arm/boot/dts/imx6sx.dtsi | 14 ++++++++++++++
> ?1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
> index 40c6738c..c6ea6ec 100644
> --- a/arch/arm/boot/dts/imx6sx.dtsi
> +++ b/arch/arm/boot/dts/imx6sx.dtsi
> @@ -750,6 +750,19 @@
> > ?				#interrupt-cells = <3>;
> > ?				interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> > ?				interrupt-parent = <&intc>;
> > +				clocks = <&clks IMX6SX_CLK_IPG>;
> > +				clock-names = "ipg";
> +
> > +				pgc {
> > +					#address-cells = <1>;
> > +					#size-cells = <0>;
> +
> > > +					pd_pci: power-domain at 3 {
> > +						reg = <3>;
> > +						#power-domain-cells = <0>;
> > +						power-supply = <&reg_pcie>;
> > +					};
> > +				};
> > ?			};
> ?
> > > ?			iomuxc: iomuxc at 20e0000 {
> @@ -1328,6 +1341,7 @@
> > ?				?<&clks IMX6SX_CLK_PCIE_REF_125M>,
> > ?				?<&clks IMX6SX_CLK_DISPLAY_AXI>;
> > ?			clock-names = "pcie", "pcie_bus", "pcie_phy", "pcie_inbound_axi";
> > +			power-domains = <&pd_pci>;
> > ?			status = "disabled";
> > ?		};
> > ?	};