From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexey Klimov Subject: [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3 Date: Tue, 28 Jul 2015 00:28:48 +0300 Message-ID: <1438032528.17734.49.camel@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-lb0-f176.google.com ([209.85.217.176]:36512 "EHLO mail-lb0-f176.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754755AbbG0V2u (ORCPT ); Mon, 27 Jul 2015 17:28:50 -0400 Received: by lbbqi7 with SMTP id qi7so62137456lbb.3 for ; Mon, 27 Jul 2015 14:28:49 -0700 (PDT) Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: linux-samsung-soc@vger.kernel.org, daniel.lezcano@linaro.org, dianders@chromium.org, chirantan@chromium.org Cc: klimov.linux@gmail.com, t.dakhran@gmail.com, k.kozlowski@samsung.com, kgene@kernel.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, yury.norov@gmail.com Speedup MCT operation on odroid-xu3 dev board by using coprocessor 64-bit counter instead of reading same counter located in mmio region. Tested on Odroid-xu3. Signed-off-by: Alexey Klimov --- arch/arm/boot/dts/exynos5422-odroidxu3.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index 78e6a50..b7f6c8f 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts @@ -18,6 +18,10 @@ compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5"; }; +&mct { + use-cp15-phys-counter; +}; + &i2c_0 { status = "okay"; -- 2.1.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: klimov.linux@gmail.com (Alexey Klimov) Date: Tue, 28 Jul 2015 00:28:48 +0300 Subject: [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3 Message-ID: <1438032528.17734.49.camel@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Speedup MCT operation on odroid-xu3 dev board by using coprocessor 64-bit counter instead of reading same counter located in mmio region. Tested on Odroid-xu3. Signed-off-by: Alexey Klimov --- arch/arm/boot/dts/exynos5422-odroidxu3.dts | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/boot/dts/exynos5422-odroidxu3.dts b/arch/arm/boot/dts/exynos5422-odroidxu3.dts index 78e6a50..b7f6c8f 100644 --- a/arch/arm/boot/dts/exynos5422-odroidxu3.dts +++ b/arch/arm/boot/dts/exynos5422-odroidxu3.dts @@ -18,6 +18,10 @@ compatible = "hardkernel,odroid-xu3", "samsung,exynos5800", "samsung,exynos5"; }; +&mct { + use-cp15-phys-counter; +}; + &i2c_0 { status = "okay"; -- 2.1.4