From mboxrd@z Thu Jan 1 00:00:00 1970 From: festevam@gmail.com (Fabio Estevam) Date: Fri, 15 Dec 2017 00:24:58 -0200 Subject: [PATCH 2/2] ARM: dts: imx6sx: Add support for PCI power domain In-Reply-To: <1513304698-15169-1-git-send-email-festevam@gmail.com> References: <1513304698-15169-1-git-send-email-festevam@gmail.com> Message-ID: <1513304698-15169-2-git-send-email-festevam@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Fabio Estevam 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 Signed-off-by: Fabio Estevam --- 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 = ; 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 = <®_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"; }; }; -- 2.7.4