From patchwork Mon Jul 27 21:28:48 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Klimov X-Patchwork-Id: 6876841 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id C42ECC05AC for ; Mon, 27 Jul 2015 21:31:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9F98D2072B for ; Mon, 27 Jul 2015 21:31:10 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AC26120709 for ; Mon, 27 Jul 2015 21:31:09 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZJpxq-0004nk-JN; Mon, 27 Jul 2015 21:29:38 +0000 Received: from mail-lb0-x230.google.com ([2a00:1450:4010:c04::230]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZJpxP-0004SB-M3 for linux-arm-kernel@lists.infradead.org; Mon, 27 Jul 2015 21:29:13 +0000 Received: by lbbzr7 with SMTP id zr7so62206908lbb.1 for ; Mon, 27 Jul 2015 14:28:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:subject:from:to:cc:date:content-type:mime-version :content-transfer-encoding; bh=mCD0e6f1Pl9vlgKpj0/yUN+3IyyidEr0Ryax8oiGgUA=; b=WjpRftt1QxEqvBKTNR/a7b2HIksiLX9HSNLAgaAUeoy94rNldBJn7DBj5D2zgXcx+e zOWjoFZ8c2Q09O0D54PCjgoTmo0kxszrXVMsCDLZS+cg+AhYICh466iyQLM20Fg0Xt52 7uaBx6vE1taTh1BTanJjp3CGa6cecqovxm8EjjG69Psay3MkTH++XaAdlSYxptWkzDg1 mm07Tro8JP829SIuWn2d5MP8RswmIHWgBqjwllfwAxCB8EOWH80FXQYG9JW/3bFWLUM9 aHpzFLKkqS1USyOl91Cla9sDotE9POwKm337iomQpuqdT9aSGbGWGEqZH5654CVcjw6/ 6pSw== X-Received: by 10.152.2.2 with SMTP id 2mr29750176laq.58.1438032529728; Mon, 27 Jul 2015 14:28:49 -0700 (PDT) Received: from [192.168.0.101] (ip-46-73-144-13.bb.netbynet.ru. [46.73.144.13]) by smtp.gmail.com with ESMTPSA id m7sm4146628laf.35.2015.07.27.14.28.48 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 Jul 2015 14:28:49 -0700 (PDT) Message-ID: <1438032528.17734.49.camel@gmail.com> Subject: [RFC PATCH 3/3] ARM: dts: add MCT property use-cp15-phys-counter for exynos5422-odroidxu3 From: Alexey Klimov To: linux-samsung-soc@vger.kernel.org, daniel.lezcano@linaro.org, dianders@chromium.org, chirantan@chromium.org Date: Tue, 28 Jul 2015 00:28:48 +0300 X-Mailer: Evolution 3.16.3-1 Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150727_142912_128897_816AC264 X-CRM114-Status: UNSURE ( 7.80 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.7 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: t.dakhran@gmail.com, k.kozlowski@samsung.com, yury.norov@gmail.com, klimov.linux@gmail.com, kgene@kernel.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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";