From: Georgi Djakov <georgi.djakov@linaro.org>
To: "Artur Świgoń" <a.swigon@samsung.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org
Cc: cw00.choi@samsung.com, myungjoo.ham@samsung.com,
inki.dae@samsung.com, sw0312.kim@samsung.com,
leonard.crestez@nxp.com, m.szyprowski@samsung.com,
b.zolnierkie@samsung.com, krzk@kernel.org
Subject: Re: [RFC PATCH v3 4/7] arm: dts: exynos: Add interconnect bindings for Exynos4412
Date: Wed, 22 Jan 2020 18:54:54 +0200 [thread overview]
Message-ID: <747a1c94-8eee-f46a-fcc7-d111cd9df70d@linaro.org> (raw)
In-Reply-To: <20191220115653.6487-5-a.swigon@samsung.com>
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
> - #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";
> };
>
>
next prev parent reply other threads:[~2020-01-22 16:55 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191220120140eucas1p14ad33c20882f8f48e02337ea16754d91@eucas1p1.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 0/7] PM / devfreq: Simple QoS for exynos-bus using interconnect Artur Świgoń
[not found] ` <CGME20191220120141eucas1p11f5fa9d76d17e80e06199cb7a911c482@eucas1p1.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 1/7] interconnect: Export of_icc_get_from_provider() Artur Świgoń
[not found] ` <CGME20191220120142eucas1p1f43c7a862d9c0faa72e14b21d7d697e9@eucas1p1.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 2/7] interconnect: Relax requirement in of_icc_get_from_provider() Artur Świgoń
2019-12-21 17:20 ` Chanwoo Choi
[not found] ` <CGME20191220120143eucas1p1c9b01ae8c2e4ecd70423ef9d8001536f@eucas1p1.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 3/7] interconnect: Allow inter-provider pairs to be configured Artur Świgoń
2019-12-22 17:08 ` Chanwoo Choi
[not found] ` <CGME20191220120144eucas1p119ececf161a6d45a6a194e432bbbd1f9@eucas1p1.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 4/7] arm: dts: exynos: Add interconnect bindings for Exynos4412 Artur Świgoń
2019-12-21 20:00 ` Chanwoo Choi
2019-12-30 15:44 ` Krzysztof Kozlowski
2019-12-31 7:18 ` Artur Świgoń
2019-12-31 9:22 ` Krzysztof Kozlowski
2019-12-31 9:41 ` Artur Świgoń
2019-12-31 10:02 ` Krzysztof Kozlowski
2019-12-31 10:23 ` Artur Świgoń
2019-12-31 10:38 ` Krzysztof Kozlowski
2019-12-31 11:03 ` Artur Świgoń
2020-01-22 16:54 ` Georgi Djakov [this message]
2020-01-24 11:22 ` Artur Świgoń
[not found] ` <CGME20191220120145eucas1p295af63eed7b23982d8c49fcf875cec8c@eucas1p2.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 5/7] devfreq: exynos-bus: Add interconnect functionality to exynos-bus Artur Świgoń
2019-12-21 19:53 ` Chanwoo Choi
2019-12-21 19:55 ` Chanwoo Choi
2020-01-22 17:02 ` Georgi Djakov
2020-01-24 11:22 ` Artur Świgoń
2020-01-24 12:32 ` Georgi Djakov
[not found] ` <CGME20191220120146eucas1p25dada01c315215d18bb8a15e3173b52c@eucas1p2.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 6/7] arm: dts: exynos: Add interconnects to Exynos4412 mixer Artur Świgoń
2019-12-21 20:08 ` Chanwoo Choi
[not found] ` <CGME20191220120146eucas1p22a7b0457be4f378b113f67dc25f2eba7@eucas1p2.samsung.com>
2019-12-20 11:56 ` [RFC PATCH v3 7/7] drm: exynos: mixer: Add interconnect support Artur Świgoń
2019-12-21 20:15 ` Chanwoo Choi
2019-12-24 4:56 ` Inki Dae
2019-12-30 9:35 ` Artur Świgoń
2019-12-21 19:58 ` [RFC PATCH v3 0/7] PM / devfreq: Simple QoS for exynos-bus using interconnect Chanwoo Choi
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