From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: [PATCH/RFC v6 1/7] PM / Domains: Add DT bindings for power-on/off latencies Date: Mon, 27 Apr 2015 14:43:36 +0200 Message-ID: <1430138622-14029-2-git-send-email-geert+renesas@glider.be> References: <1430138622-14029-1-git-send-email-geert+renesas@glider.be> Return-path: In-Reply-To: <1430138622-14029-1-git-send-email-geert+renesas@glider.be> Sender: linux-sh-owner@vger.kernel.org To: "Rafael J. Wysocki" , Kevin Hilman , Ulf Hansson , Axel Haslam Cc: linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven List-Id: devicetree@vger.kernel.org PM domain power-on/off latencies are properties of the hardware. In legacy code, they're specified from platform code. On DT platforms, their values should come from DT. Signed-off-by: Geert Uytterhoeven Acked-by: Kevin Hilman Reviewed-by: Ulf Hansson --- v6: - Rebased on top of v4.1-rc1 for new RFC, v5: - No changes, v4: - Add Reviewed-by, - Replace single latency value by list of latencies, v3: - No changes, v2: - Add Acked-by. --- Documentation/devicetree/bindings/power/power_domain.txt | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt index 025b5e7df61c630c..d659e5cb39be6057 100644 --- a/Documentation/devicetree/bindings/power/power_domain.txt +++ b/Documentation/devicetree/bindings/power/power_domain.txt @@ -28,6 +28,12 @@ Optional properties: created by the given provider should be subdomains of the domain specified by this binding. More details about power domain specifier are available in the next section. + - power-on-latency: List of power-on latencies (in ns), one for each PM + domain. If all power-on latencies are identical, the list may be shortened + to a single value. + - power-off-latency: List of power-off latencies (in ns), one for each PM + domain. If all power-off latencies are identical, the list may be shortened + to a single value. Example: @@ -35,10 +41,12 @@ Example: compatible = "foo,power-controller"; reg = <0x12340000 0x1000>; #power-domain-cells = <1>; + power-on-latency = <250000 400000 180000>; + power-off-latency = <250000 400000 300000>; }; -The node above defines a power controller that is a PM domain provider and -expects one cell as its phandle argument. +The node above defines a power controller that is a PM domain provider for +3 PM domains, and expects one cell as its phandle argument. Example 2: -- 1.9.1