From patchwork Tue Aug 7 12:11:08 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felipe Balbi X-Patchwork-Id: 1285341 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id A1B26DF280 for ; Tue, 7 Aug 2012 12:17:41 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1SyigT-00079z-4w; Tue, 07 Aug 2012 12:14:49 +0000 Received: from na3sys009aog105.obsmtp.com ([74.125.149.75]) by merlin.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1SyigP-00078s-Qv for linux-arm-kernel@lists.infradead.org; Tue, 07 Aug 2012 12:14:46 +0000 Received: from mail-lb0-f179.google.com ([209.85.217.179]) (using TLSv1) by na3sys009aob105.postini.com ([74.125.148.12]) with SMTP ID DSNKUCEGs4dZCTab1UNPz/6G81Zy54tgzIwo@postini.com; Tue, 07 Aug 2012 05:14:45 PDT Received: by lbao2 with SMTP id o2so2457370lba.24 for ; Tue, 07 Aug 2012 05:14:42 -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=UEyO62MA03rTftD7uDYc1xcHm00TDbWEWACkjfA3OEQ=; b=TN8Q5bshVholFfOHidQtoAj4aFX0hTyxR6X+8C1NBXJlSZD9CR8svxfIAiYiFnWNb7 bnxKovyxOrshj5E+HoIZilgVWIut4AZM3zz9Pbu2nIoTWpi4rGbC6TmkwqyGBGROmKiL WxDR3N5SNYxdMhM1t4bC0yJmG7n8qm+cr4MP0z7f3DF3zCd1aWwgQx4+gY9sTPEb3/Tu iLu4lujZ7BO6mYi/GP8uON718E5y61qUxXgBScR5dChd8DKoctKnIa87smqGon27fFrA bnFjZwvj6Nripnyed2VfZCT6Xwt4e9D70xmGD+hmIyRSjP+xD2bVm7mRdbe6GtYytASn gjKw== Received: by 10.112.45.230 with SMTP id q6mr6172368lbm.94.1344341682117; Tue, 07 Aug 2012 05:14:42 -0700 (PDT) Received: from localhost (cs78217178.pp.htv.fi. [62.78.217.178]) by mx.google.com with ESMTPS id b3sm4333624lbh.6.2012.08.07.05.14.40 (version=TLSv1/SSLv3 cipher=OTHER); Tue, 07 Aug 2012 05:14:41 -0700 (PDT) From: Felipe Balbi To: Shubhrajyoti Datta Subject: [PATCH] i2c: omap: switch over to autosuspend API Date: Tue, 7 Aug 2012 15:11:08 +0300 Message-Id: <1344341468-8144-1-git-send-email-balbi@ti.com> X-Mailer: git-send-email 1.7.12.rc0 In-Reply-To: <20120807120728.GW8468@arwen.pp.htv.fi> References: <20120807120728.GW8468@arwen.pp.htv.fi> X-Gm-Message-State: ALoCoQk29UPGk7rL8/HZZfES4vPQQNIZr/mTI5b6otZNwKM50C+IUsN0GBzo2uWGS3g2RHaJeRB4 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 [74.125.149.75 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 | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 60928f2..c210b45 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 +1193,8 @@ omap_i2c_probe(struct platform_device *pdev) of_i2c_register_devices(adap); - pm_runtime_put(dev->dev); + pm_runtime_mark_last_busy(dev->dev); + pm_runtime_put_autosuspend(dev->dev); return 0;