From patchwork Mon Jun 17 12:21:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Guo Ren X-Patchwork-Id: 1116969 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=kernel.org Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="x5cqyCrk"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 45S9MZ48cWz9sDX for ; Mon, 17 Jun 2019 22:22:34 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725973AbfFQMWd (ORCPT ); Mon, 17 Jun 2019 08:22:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:42108 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725962AbfFQMWd (ORCPT ); Mon, 17 Jun 2019 08:22:33 -0400 Received: from localhost.localdomain (unknown [223.93.147.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F1A7F20657; Mon, 17 Jun 2019 12:22:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1560774153; bh=tgZsHVbNLcoLLQMpm8YjGpkR8Z8fD1Ui+K8OiDs0s6s=; h=From:To:Cc:Subject:Date:From; b=x5cqyCrkuzEzrPAfDR+MhZxDNHPD/8QeH6qyO0oFG2BaD6r3HaQrHGIMpEvB1SmKP efbcJlQKdfAeWSWAgni++3TMSzpbNsGLvvP8A27xW94PSZ1rB7iOK9wyql9RE1sw31 T1Vor4UjLD4TPAJ2TberYVFxromn/dxQkrI+LahI= From: guoren@kernel.org To: robh+dt@kernel.org, guoren@kernel.org, han_mao@c-sky.com Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] dt-bindings: csky: Add csky PMU bindings Date: Mon, 17 Jun 2019 20:21:39 +0800 Message-Id: <1560774099-8808-1-git-send-email-guoren@kernel.org> X-Mailer: git-send-email 2.7.4 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Mao Han This patch adds the documentation to describe that how to add pmu node in dts. Signed-off-by: Mao Han Signed-off-by: Guo Ren Cc: Rob Herring --- Documentation/devicetree/bindings/csky/pmu.txt | 38 ++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 Documentation/devicetree/bindings/csky/pmu.txt diff --git a/Documentation/devicetree/bindings/csky/pmu.txt b/Documentation/devicetree/bindings/csky/pmu.txt new file mode 100644 index 0000000..728d05c --- /dev/null +++ b/Documentation/devicetree/bindings/csky/pmu.txt @@ -0,0 +1,38 @@ +=============================== +C-SKY Performance Monitor Units +=============================== + +C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and +it could count cpu's events for helping analysis performance issues. + +============================ +PMU node bindings definition +============================ + + Description: Describes PMU + + PROPERTIES + + - compatible + Usage: required + Value type: + Definition: must be "csky,csky-pmu" + - interrupts + Usage: required + Value type: + Definition: must be pmu irq num defined by soc + - count-width + Usage: optional + Value type: + Definition: the width of pmu counter + +Examples: +--------- +#include + + pmu: performace-monitor { + compatible = "csky,csky-pmu"; + interrupts = <23 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&intc>; + count-width = <48>; + };