Re: [RFC PATCH v3 4/7] arm: dts: exynos: Add interconnect bindings for Exynos4412
From: Georgi Djakov <hidden>
Date: 2020-01-22 16:55:02
Also in:
dri-devel, linux-devicetree, linux-pm, linux-samsung-soc, lkml
Hi Artur, Thank you for your continuous work on this. On 12/20/19 13:56, Artur Świgoń wrote:
This patch adds the following properties to the Exynos4412 DT:
- exynos,interconnect-parent-node: to declare connections between
nodes in order to guarantee PM QoS requirements between nodes;Is this DT property documented somewhere? I believe that there should be a patch to document it somewhere in Documentation/devicetree/bindings/ before using it. Thanks, Georgi
quoted hunk ↗ jump to hunk
- #interconnect-cells: required by the interconnect framework. Note that #interconnect-cells is always zero and node IDs are not hardcoded anywhere. Signed-off-by: Artur Świgoń <a.swigon@samsung.com> --- arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 5 +++++ 1 file changed, 5 insertions(+)diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index 4ce3d77a6704..d9d70eacfcaf 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi@@ -90,6 +90,7 @@ &bus_dmc { exynos,ppmu-device = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>; vdd-supply = <&buck1_reg>; + #interconnect-cells = <0>; status = "okay"; };@@ -106,6 +107,8 @@ &bus_leftbus { exynos,ppmu-device = <&ppmu_leftbus_3>, <&ppmu_rightbus_3>; vdd-supply = <&buck3_reg>; + exynos,interconnect-parent-node = <&bus_dmc>; + #interconnect-cells = <0>; status = "okay"; };@@ -116,6 +119,8 @@ &bus_display { exynos,parent-bus = <&bus_leftbus>; + exynos,interconnect-parent-node = <&bus_leftbus>; + #interconnect-cells = <0>; status = "okay"; };
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