From mboxrd@z Thu Jan 1 00:00:00 1970 From: Soren Brinkmann Subject: [PATCH v2 1/5] ARM: zynq: DT: Add 'clock-latency' property Date: Fri, 4 Apr 2014 16:14:12 -0700 Message-ID: <1396653256-28397-2-git-send-email-soren.brinkmann@xilinx.com> References: <1396653256-28397-1-git-send-email-soren.brinkmann@xilinx.com> Return-path: In-Reply-To: <1396653256-28397-1-git-send-email-soren.brinkmann@xilinx.com> Sender: linux-kernel-owner@vger.kernel.org To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King , Michal Simek Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, =?UTF-8?q?S=C3=B6ren=20Brinkmann?= , Steffen Trumtrar , Mike Looijmans List-Id: devicetree@vger.kernel.org Specify the 'clock-latency' property to avoid certain cpufreq governors from refusing to work with the following error: ondemand governor failed, too long transition latency of HW, fallback to performance governor Reported-by: Mike Looijmans Signed-off-by: Soren Brinkmann Tested-by: Mike Looijmans Signed-off-by: Michal Simek --- This is a fix from our vendor tree Changes in v2: - This patch has been added --- arch/arm/boot/dts/zynq-7000.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi index 789d0bacc110..20a13cba65a3 100644 --- a/arch/arm/boot/dts/zynq-7000.dtsi +++ b/arch/arm/boot/dts/zynq-7000.dtsi @@ -24,6 +24,7 @@ device_type = "cpu"; reg = <0>; clocks = <&clkc 3>; + clock-latency = <1000>; operating-points = < /* kHz uV */ 666667 1000000 -- 1.9.1.1.gbb9f595