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Subject[PATCH v2 4/4] ARM: dts: imx6sx: Add DISPLAY power domain support
Date
This was implemented in the driver but not actually defined and
referenced in dts. This makes it always on.

From reference manual in section "10.4.1.4.1 Power Distribution":

"Display domain - The DISPLAY domain contains GIS, CSI, PXP, LCDIF,
PCIe, DCIC, and LDB. It is supplied by internal regulator."

The current pd_pcie is actually only for PCIE_PHY, the PCIE ip block is
actually inside the DISPLAY domain. Handle this by adding the pcie node
in both power domains.

Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
---
arch/arm/boot/dts/imx6sx.dtsi | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6sx.dtsi b/arch/arm/boot/dts/imx6sx.dtsi
index 95a3c1cb877d..b7f815d82d1b 100644
--- a/arch/arm/boot/dts/imx6sx.dtsi
+++ b/arch/arm/boot/dts/imx6sx.dtsi
@@ -778,10 +778,22 @@
#power-domain-cells = <0>;
power-supply = <&reg_soc>;
clocks = <&clks IMX6SX_CLK_GPU>;
};

+ pd_disp: power-domain@2 {
+ reg = <2>;
+ #power-domain-cells = <0>;
+ clocks = <&clks IMX6SX_CLK_PXP_AXI>,
+ <&clks IMX6SX_CLK_DISPLAY_AXI>,
+ <&clks IMX6SX_CLK_LCDIF1_PIX>,
+ <&clks IMX6SX_CLK_LCDIF_APB>,
+ <&clks IMX6SX_CLK_LCDIF2_PIX>,
+ <&clks IMX6SX_CLK_CSI>,
+ <&clks IMX6SX_CLK_VADC>;
+ };
+
pd_pci: power-domain@3 {
reg = <3>;
#power-domain-cells = <0>;
power-supply = <&reg_pcie>;
};
@@ -1196,10 +1208,11 @@
reg = <0x02218000 0x4000>;
interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clks IMX6SX_CLK_PXP_AXI>,
<&clks IMX6SX_CLK_DISPLAY_AXI>;
clock-names = "pxp-axi", "disp-axi";
+ power-domains = <&pd_disp>;
status = "disabled";
};

csi2: csi@221c000 {
reg = <0x0221c000 0x4000>;
@@ -1217,10 +1230,11 @@
interrupts = <GIC_SPI 5 IRQ_TYPE_EDGE_RISING>;
clocks = <&clks IMX6SX_CLK_LCDIF1_PIX>,
<&clks IMX6SX_CLK_LCDIF_APB>,
<&clks IMX6SX_CLK_DISPLAY_AXI>;
clock-names = "pix", "axi", "disp_axi";
+ power-domains = <&pd_disp>;
status = "disabled";
};

lcdif2: lcdif@2224000 {
compatible = "fsl,imx6sx-lcdif", "fsl,imx28-lcdif";
@@ -1228,19 +1242,21 @@
interrupts = <GIC_SPI 6 IRQ_TYPE_EDGE_RISING>;
clocks = <&clks IMX6SX_CLK_LCDIF2_PIX>,
<&clks IMX6SX_CLK_LCDIF_APB>,
<&clks IMX6SX_CLK_DISPLAY_AXI>;
clock-names = "pix", "axi", "disp_axi";
+ power-domains = <&pd_disp>;
status = "disabled";
};

vadc: vadc@2228000 {
reg = <0x02228000 0x4000>, <0x0222c000 0x4000>;
reg-names = "vadc-vafe", "vadc-vdec";
clocks = <&clks IMX6SX_CLK_VADC>,
<&clks IMX6SX_CLK_CSI>;
clock-names = "vadc", "csi";
+ power-domains = <&pd_disp>;
status = "disabled";
};
};

adc1: adc@2280000 {
@@ -1361,10 +1377,11 @@
clocks = <&clks IMX6SX_CLK_PCIE_AXI>,
<&clks IMX6SX_CLK_LVDS1_OUT>,
<&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>;
+ power-domains = <&pd_disp>, <&pd_pci>;
+ power-domain-names = "pcie", "pcie_phy";
status = "disabled";
};
};
};
--
2.17.1
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