From patchwork Mon Aug 6 14:18:57 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felipe Balbi X-Patchwork-Id: 1279581 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id DC6DF3FD57 for ; Mon, 6 Aug 2012 14:28:12 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1SyOD4-0006ob-D5; Mon, 06 Aug 2012 14:23:06 +0000 Received: from na3sys009aog127.obsmtp.com ([74.125.149.107]) by merlin.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1SyOCj-0006kn-M2 for linux-arm-kernel@lists.infradead.org; Mon, 06 Aug 2012 14:22:46 +0000 Received: from mail-lb0-f179.google.com ([209.85.217.179]) (using TLSv1) by na3sys009aob127.postini.com ([74.125.148.12]) with SMTP ID DSNKUB/TM3a/rligyro1sxrgAnYHhqFEBS+i@postini.com; Mon, 06 Aug 2012 07:22:45 PDT Received: by lbao2 with SMTP id o2so1798699lba.10 for ; Mon, 06 Aug 2012 07:22:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references :x-gm-message-state; bh=Axknjxj6borhH5WrW5Men5EMfs5dbMGx+Yqxfbdl/fs=; b=obNk7vFLXUsbGrtWMqTjUplFRzgG7pl3o1fGfkJRwfClscjR45XqAP5QGWMsJBp/Y7 QIPeS+KEgxdlAeXSqwFfL7ouOJY9OA6L5BvG3ubUu0l9fXlKR57T6lSNdG6Oeh0nYgN7 XuKFcSq0MQpg/GVpIXeZjq91sQ/k2cWqInXrdbfulcmfxhxxJtuyM8ojZQXjvVYpw+0c CWC47/7l1PUpyTElO9O1jV+ALclnkdcKOEqqAkCXOChrmv4RfzBjUP9KFujnaK5oqgQQ XCnmwt00XtxMrRn42oWRDIooY12Tm2ibjrLr30g3ak15ob3LHMB7Y7c/wbPpyVC0MtH/ PHYg== Received: by 10.112.40.231 with SMTP id a7mr4741070lbl.67.1344262962441; Mon, 06 Aug 2012 07:22:42 -0700 (PDT) Received: from localhost (cs78217178.pp.htv.fi. [62.78.217.178]) by mx.google.com with ESMTPS id gv8sm17287311lab.14.2012.08.06.07.22.40 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 06 Aug 2012 07:22:41 -0700 (PDT) From: Felipe Balbi To: Shubhrajyoti Datta Subject: [PATCH 4/4] i2c: omap: switch over to autosuspend API Date: Mon, 6 Aug 2012 17:18:57 +0300 Message-Id: <1344262737-6662-5-git-send-email-balbi@ti.com> X-Mailer: git-send-email 1.7.12.rc0 In-Reply-To: <1344262737-6662-1-git-send-email-balbi@ti.com> References: <1344262737-6662-1-git-send-email-balbi@ti.com> X-Gm-Message-State: ALoCoQkUSikihvBbdqxsCp/uetLpkkmsng6ZSgDF+42ECIcWWjKAL5BzXYy/e7gmkXH3PSbKoB45 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [74.125.149.107 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Linux OMAP Mailing List , Felipe Balbi , w.sang@pengutronix.de, Linux ARM Kernel Mailing List X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org this helps us reduce unnecessary pm transitions in case we have another i2c message been started soon. Signed-off-by: Felipe Balbi --- drivers/i2c/busses/i2c-omap.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 60928f2..22efaba 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -645,7 +645,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num) omap_i2c_wait_for_bb(dev); out: - pm_runtime_put(dev->dev); + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); return r; } @@ -1113,6 +1114,9 @@ omap_i2c_probe(struct platform_device *pdev) dev->regs = (u8 *)reg_map_ip_v1; pm_runtime_enable(dev->dev); + pm_runtime_set_autosuspend_delay(dev->dev, 1000); + pm_runtime_use_autosuspend(dev->dev); + r = pm_runtime_get_sync(dev->dev); if (IS_ERR_VALUE(r)) goto err_free_mem; @@ -1189,7 +1193,7 @@ omap_i2c_probe(struct platform_device *pdev) of_i2c_register_devices(adap); - pm_runtime_put(dev->dev); + pm_runtime_put_autosuspend(dev->dev); return 0;