From patchwork Fri Feb 24 09:29:05 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 9589759 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 46F1E60471 for ; Fri, 24 Feb 2017 09:29:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 35F3B28732 for ; Fri, 24 Feb 2017 09:29:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2A517287A7; Fri, 24 Feb 2017 09:29:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id B527628732 for ; Fri, 24 Feb 2017 09:29:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3DD246EBEF; Fri, 24 Feb 2017 09:29:34 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id ACD9A6EBED for ; Fri, 24 Feb 2017 09:29:32 +0000 (UTC) Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2E45F80467; Fri, 24 Feb 2017 09:29:33 +0000 (UTC) Received: from shalem.localdomain.com (ovpn-117-66.ams2.redhat.com [10.36.117.66]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v1O9TEga029110; Fri, 24 Feb 2017 04:29:30 -0500 From: Hans de Goede To: Daniel Vetter , Jani Nikula , =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Jarkko Nikula , Wolfram Sang , Andy Shevchenko , Thomas Gleixner , "H . Peter Anvin" Date: Fri, 24 Feb 2017 10:29:05 +0100 Message-Id: <20170224092912.10685-6-hdegoede@redhat.com> In-Reply-To: <20170224092912.10685-1-hdegoede@redhat.com> References: <20170224092912.10685-1-hdegoede@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Fri, 24 Feb 2017 09:29:33 +0000 (UTC) Cc: Takashi Iwai , "russianneuromancer @ ya . ru" , intel-gfx , Hans de Goede , linux-i2c@vger.kernel.org, Mika Westerberg Subject: [Intel-gfx] [PATCH v4 05/12] i2c: designware-baytrail: Only check iosf_mbi_available() for shared hosts X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP If (!shared_host) simply return 0, this avoids delaying the probe if iosf_mbi_available() returns false when an i2c bus is not using the punit semaphore. Also move the if (!iosf_mbi_available()) check to above the dev_info, so that we do not repeat the dev_info on every probe until iosf_mbi_available() returns true. Signed-off-by: Hans de Goede Reviewed-by: Andy Shevchenko Acked-by: Jarkko Nikula Tested-by: Takashi Iwai Acked-by: Wolfram Sang --- Changes in v2: -New patch in v2 of this set Changes in v3: -Use if (!shared_host) return 0, to simplify the non-shared_host path and to avoid nested ifs --- drivers/i2c/busses/i2c-designware-baytrail.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-baytrail.c b/drivers/i2c/busses/i2c-designware-baytrail.c index a3f581c..cf02222 100644 --- a/drivers/i2c/busses/i2c-designware-baytrail.c +++ b/drivers/i2c/busses/i2c-designware-baytrail.c @@ -138,15 +138,16 @@ int i2c_dw_eval_lock_support(struct dw_i2c_dev *dev) if (ACPI_FAILURE(status)) return 0; - if (shared_host) { - dev_info(dev->dev, "I2C bus managed by PUNIT\n"); - dev->acquire_lock = baytrail_i2c_acquire; - dev->release_lock = baytrail_i2c_release; - dev->pm_runtime_disabled = true; - } + if (!shared_host) + return 0; if (!iosf_mbi_available()) return -EPROBE_DEFER; + dev_info(dev->dev, "I2C bus managed by PUNIT\n"); + dev->acquire_lock = baytrail_i2c_acquire; + dev->release_lock = baytrail_i2c_release; + dev->pm_runtime_disabled = true; + return 0; }