From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Gerlach Subject: [PATCH 1/2] ARM: dts: am33xx: Add idle_states for cpuidle Date: Thu, 12 Dec 2019 22:17:24 -0600 Message-ID: <20191213041725.16831-2-d-gerlach@ti.com> References: <20191213041725.16831-1-d-gerlach@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20191213041725.16831-1-d-gerlach@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Tony Lindgren , Santosh Shilimkar Cc: devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Dave Gerlach List-Id: linux-omap@vger.kernel.org Add idle_states table for CPU on am335x. Currently just add C1 state which gates the MPU clock domain. Signed-off-by: Dave Gerlach --- arch/arm/boot/dts/am33xx.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 646f11430dad..66d102efa93f 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -47,6 +47,7 @@ #size-cells = <0>; cpu@0 { compatible = "arm,cortex-a8"; + enable-method = "ti,am3352"; device_type = "cpu"; reg = <0>; @@ -56,6 +57,17 @@ clock-names = "cpu"; clock-latency = <300000>; /* From omap-cpufreq driver */ + cpu-idle-states = <&mpu_gate>; + }; + + idle-states { + mpu_gate: mpu_gate { + compatible = "arm,idle-state"; + entry-latency-us = <40>; + exit-latency-us = <90>; + min-residency-us = <300>; + ti,idle-wkup-m3; + }; }; }; -- 2.20.1