From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: [PATCH/RFC v6 4/7] PM / Domains: Add DT bindings for PM QoS device latencies Date: Mon, 27 Apr 2015 14:43:39 +0200 Message-ID: <1430138622-14029-5-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-pm-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 QoS device start/stop 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 --- v6: - Rebased on top of v4.1-rc1 for new RFC, v4: - Drop save/restore state latencies, as they're Linux driver-specific, - Change state to RFC, as this is put on hold, v3: - No changes, v2: - New. --- Documentation/devicetree/bindings/power/power_domain.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt index d659e5cb39be6057..32d1d3a399fe2a48 100644 --- a/Documentation/devicetree/bindings/power/power_domain.txt +++ b/Documentation/devicetree/bindings/power/power_domain.txt @@ -73,12 +73,18 @@ Required properties: - power-domains : A phandle and PM domain specifier as defined by bindings of the power controller specified by phandle. +Optional properties: + - stop-latency: Stop latency of the device, in ns, + - start-latency: Start latency of the device, in ns, + Example: leaky-device@12350000 { compatible = "foo,i-leak-current"; reg = <0x12350000 0x1000>; power-domains = <&power 0>; + stop-latency = <250000>; + start-latency = <250000>; }; The node above defines a typical PM domain consumer device, which is located -- 1.9.1