Re: [PATCH v4 9/9] arm64: dts: mediatek: Add Video Decoder for MT8173

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On 10/08/16 16:48, Tiffany Lin wrote:
Add video decoder node for MT8173

Signed-off-by: Tiffany Lin <tiffany.lin@xxxxxxxxxxxx>
---
 arch/arm64/boot/dts/mediatek/mt8173.dtsi |   44 ++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 10f638f..2872cd7 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -974,6 +974,50 @@
 			#clock-cells = <1>;
 		};

+		vcodec_dec: vcodec@16000000 {
+			compatible = "mediatek,mt8173-vcodec-dec";
+			reg = <0 0x16000000 0 0x100>,	/* VDEC_SYS */
+			      <0 0x16020000 0 0x1000>,	/* VDEC_MISC */
+			      <0 0x16021000 0 0x800>,	/* VDEC_LD */
+			      <0 0x16021800 0 0x800>,	/* VDEC_TOP */
+			      <0 0x16022000 0 0x1000>,	/* VDEC_CM */
+			      <0 0x16023000 0 0x1000>,	/* VDEC_AD */
+			      <0 0x16024000 0 0x1000>,	/* VDEC_AV */
+			      <0 0x16025000 0 0x1000>,	/* VDEC_PP */
+			      <0 0x16026800 0 0x800>,	/* VDEC_HWD */
+			      <0 0x16027000 0 0x800>,	/* VDEC_HWQ */
+			      <0 0x16027800 0 0x800>,	/* VDEC_HWB */
+			      <0 0x16028400 0 0x400>;	/* VDEC_HWG */
+			interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_LOW>;
+			mediatek,larb = <&larb1>;
+			iommus = <&iommu M4U_PORT_HW_VDEC_MC_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_PP_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_AVC_MV_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_PRED_RD_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_PRED_WR_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_UFO_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_VLD_EXT>,
+				 <&iommu M4U_PORT_HW_VDEC_VLD2_EXT>;
+			mediatek,vpu = <&vpu>;
+			power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
+			clocks = <&apmixedsys CLK_APMIXED_VCODECPLL>,
+				 <&topckgen CLK_TOP_UNIVPLL_D2>,
+				 <&topckgen CLK_TOP_CCI400_SEL>,
+				 <&topckgen CLK_TOP_VDEC_SEL>,
+				 <&topckgen CLK_TOP_VCODECPLL>,
+				 <&apmixedsys CLK_APMIXED_VENCPLL>,
+				 <&topckgen CLK_TOP_VENC_LT_SEL>,
+				 <&topckgen CLK_TOP_VCODECPLL_370P5>;
+			clock-names = "vcodecpll",
+				      "univpll_d2",
+				      "clk_cci400_sel",
+				      "vdec_sel",
+				      "vdecpll",
+				      "vencpll",
+				      "venc_lt_sel",
+				      "vdec_bus_clk_src";
+		};
+

Shouldn't we set here:
status = "disabled";

To save power on headless systems?

Regards,
Matthias

 		larb1: larb@16010000 {
 			compatible = "mediatek,mt8173-smi-larb";
 			reg = <0 0x16010000 0 0x1000>;

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