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Wed, 03 Jun 2020 18:35:43 -0800 Received: from MTKMBS31N2.mediatek.inc (172.27.4.87) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 3 Jun 2020 19:35:45 -0700 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS31N2.mediatek.inc (172.27.4.87) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 4 Jun 2020 10:35:39 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 4 Jun 2020 10:35:40 +0800 Message-ID: <1591238018.8804.555.camel@mhfsdcap03> Subject: Re: [V6, 2/2] media: i2c: dw9768: Add DW9768 VCM driver From: Dongchun Zhu To: Tomasz Figa Date: Thu, 4 Jun 2020 10:33:38 +0800 In-Reply-To: References: <20200518132731.20855-1-dongchun.zhu@mediatek.com> <20200518132731.20855-3-dongchun.zhu@mediatek.com> <20200521195113.GC14214@chromium.org> <1590139561.8804.390.camel@mhfsdcap03> <1590570089.8804.453.camel@mhfsdcap03> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: F86C0FCDB567B5C188A65FAB2CBC0E5B52353EFA00CBAB634B239ED5B17F119F2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200603_193548_621290_291EF359 X-CRM114-Status: GOOD ( 19.31 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Nicolas Boichat , Andy Shevchenko , srv_heupstream , linux-devicetree , Linus Walleij , Shengnan Wang =?UTF-8?Q?=28=E7=8E=8B=E5=9C=A3=E7=94=B7=29?= , Louis Kuo , Bartosz Golaszewski , Sj Huang , Rob Herring , "moderated list:ARM/Mediatek SoC support" , dongchun.zhu@mediatek.com, Sakari Ailus , Matthias Brugger , Cao Bing Bu , Mauro Carvalho Chehab , "list@263.net:IOMMU DRIVERS , Joerg Roedel , " , Linux Media Mailing List Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Hi Tomasz, On Mon, 2020-06-01 at 20:47 +0200, Tomasz Figa wrote: > On Wed, May 27, 2020 at 11:03 AM Dongchun Zhu wrote: > > > > Hi Tomasz, > > > > On Mon, 2020-05-25 at 13:45 +0200, Tomasz Figa wrote: > > > On Fri, May 22, 2020 at 11:27 AM Dongchun Zhu wrote: > > > > > > > > Hi Tomasz, > > > > > > > > Thanks for the review. My replies are as below. > > > > > > > > On Thu, 2020-05-21 at 19:51 +0000, Tomasz Figa wrote: > > > > > Hi Dongchun, Sakari, > > > > > > > > > > On Mon, May 18, 2020 at 09:27:31PM +0800, Dongchun Zhu wrote: > > > [snip] > > > > > > + pm_runtime_enable(dev); > > > > > > + if (!pm_runtime_enabled(dev)) { > > > > > > + ret = dw9768_runtime_resume(dev); > > > > > > + if (ret < 0) { > > > > > > + dev_err(dev, "failed to power on: %d\n", ret); > > > > > > + goto entity_cleanup; > > > > > > + } > > > > > > + } > > > > > > + > > > > > > + ret = v4l2_async_register_subdev(&dw9768->sd); > > > > > > + if (ret < 0) > > > > > > + goto entity_cleanup; > > > > > > + > > > > > > + return 0; > > > > > > + > > > > > > +entity_cleanup: > > > > > > > > > > Need to power off if the code above powered on. > > > > > > > > > > > > > Thanks for the reminder. > > > > If there is something wrong with runtime PM, actuator is to be powered > > > > on via dw9768_runtime_resume() API. > > > > When actuator sub-device is powered on completely and async registered > > > > successfully, we shall power off it afterwards. > > > > > > > > > > The code above calls dw9768_runtime_resume() if > > > !pm_runtime_enabled(dev), but the clean-up code below the > > > entity_cleanup label doesn't have the corresponding > > > dw9768_runtime_suspend() call. > > > > > > > Did you mean the 'entity_cleanup' after v4l2_async_register_subdev()? > > Yes. > > > Actually I made some changes for OV02A V9, according to this comment. > > Could you help review that change? Thanks. > > Sure, I will take a look. > Thanks. Sorry, I just wanna make sure the change is okay for next release. May we use the check like OV02A V9 did? ret = v4l2_async_register_subdev(&dw9768->sd); if (ret < 0) { if (!pm_runtime_enabled(dev)) dw9768_runtime_suspend(dev); goto entity_cleanup; } > Best regards, > Tomasz _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BF9CDC433E2 for ; Thu, 4 Jun 2020 02:35:52 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 9232B20679 for ; 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bh=SuYNiPB5NMghHlkxCe+dQYVYe8ChAYf4pPTeZHrmuOY=; b=XdzrK4V6cTBmxoIBS4Q5QPz+HPhUqF2Ju5XKgrxWdDssoF2gCSqAG0Z4Ie/wg2JBR4f5TnfjXNGhaVUwXe59kABU31fjP/wAAQrs6gKuWqiSKty1Nsdrn19wLmFa4PiF93M1OjFK982/kQ45GUczLETdQlOm+0csBhPsHr8zi74=; X-UUID: 59660a979cdf416887a633ca1fcfd0f6-20200603 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1196773227; Wed, 03 Jun 2020 18:35:43 -0800 Received: from MTKMBS31N2.mediatek.inc (172.27.4.87) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 3 Jun 2020 19:35:45 -0700 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS31N2.mediatek.inc (172.27.4.87) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 4 Jun 2020 10:35:39 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 4 Jun 2020 10:35:40 +0800 Message-ID: <1591238018.8804.555.camel@mhfsdcap03> Subject: Re: [V6, 2/2] media: i2c: dw9768: Add DW9768 VCM driver From: Dongchun Zhu To: Tomasz Figa Date: Thu, 4 Jun 2020 10:33:38 +0800 In-Reply-To: References: <20200518132731.20855-1-dongchun.zhu@mediatek.com> <20200518132731.20855-3-dongchun.zhu@mediatek.com> <20200521195113.GC14214@chromium.org> <1590139561.8804.390.camel@mhfsdcap03> <1590570089.8804.453.camel@mhfsdcap03> X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: F86C0FCDB567B5C188A65FAB2CBC0E5B52353EFA00CBAB634B239ED5B17F119F2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200603_193548_621290_291EF359 X-CRM114-Status: GOOD ( 19.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Nicolas Boichat , Andy Shevchenko , srv_heupstream , linux-devicetree , Linus Walleij , Shengnan Wang =?UTF-8?Q?=28=E7=8E=8B=E5=9C=A3=E7=94=B7=29?= , Louis Kuo , Bartosz Golaszewski , Sj Huang , Rob Herring , "moderated list:ARM/Mediatek SoC support" , dongchun.zhu@mediatek.com, Sakari Ailus , Matthias Brugger , Cao Bing Bu , Mauro Carvalho Chehab , "list@263.net:IOMMU DRIVERS , Joerg Roedel , " , Linux Media Mailing List Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Tomasz, On Mon, 2020-06-01 at 20:47 +0200, Tomasz Figa wrote: > On Wed, May 27, 2020 at 11:03 AM Dongchun Zhu wrote: > > > > Hi Tomasz, > > > > On Mon, 2020-05-25 at 13:45 +0200, Tomasz Figa wrote: > > > On Fri, May 22, 2020 at 11:27 AM Dongchun Zhu wrote: > > > > > > > > Hi Tomasz, > > > > > > > > Thanks for the review. My replies are as below. > > > > > > > > On Thu, 2020-05-21 at 19:51 +0000, Tomasz Figa wrote: > > > > > Hi Dongchun, Sakari, > > > > > > > > > > On Mon, May 18, 2020 at 09:27:31PM +0800, Dongchun Zhu wrote: > > > [snip] > > > > > > + pm_runtime_enable(dev); > > > > > > + if (!pm_runtime_enabled(dev)) { > > > > > > + ret = dw9768_runtime_resume(dev); > > > > > > + if (ret < 0) { > > > > > > + dev_err(dev, "failed to power on: %d\n", ret); > > > > > > + goto entity_cleanup; > > > > > > + } > > > > > > + } > > > > > > + > > > > > > + ret = v4l2_async_register_subdev(&dw9768->sd); > > > > > > + if (ret < 0) > > > > > > + goto entity_cleanup; > > > > > > + > > > > > > + return 0; > > > > > > + > > > > > > +entity_cleanup: > > > > > > > > > > Need to power off if the code above powered on. > > > > > > > > > > > > > Thanks for the reminder. > > > > If there is something wrong with runtime PM, actuator is to be powered > > > > on via dw9768_runtime_resume() API. > > > > When actuator sub-device is powered on completely and async registered > > > > successfully, we shall power off it afterwards. > > > > > > > > > > The code above calls dw9768_runtime_resume() if > > > !pm_runtime_enabled(dev), but the clean-up code below the > > > entity_cleanup label doesn't have the corresponding > > > dw9768_runtime_suspend() call. > > > > > > > Did you mean the 'entity_cleanup' after v4l2_async_register_subdev()? > > Yes. > > > Actually I made some changes for OV02A V9, according to this comment. > > Could you help review that change? Thanks. > > Sure, I will take a look. > Thanks. Sorry, I just wanna make sure the change is okay for next release. May we use the check like OV02A V9 did? ret = v4l2_async_register_subdev(&dw9768->sd); if (ret < 0) { if (!pm_runtime_enabled(dev)) dw9768_runtime_suspend(dev); goto entity_cleanup; } > Best regards, > Tomasz _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3ACAEC433DF for ; Thu, 4 Jun 2020 02:35:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 16AB020679 for ; Thu, 4 Jun 2020 02:35:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="cxWmki0H" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726298AbgFDCfu (ORCPT ); Wed, 3 Jun 2020 22:35:50 -0400 Received: from Mailgw01.mediatek.com ([1.203.163.78]:61819 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726047AbgFDCfu (ORCPT ); Wed, 3 Jun 2020 22:35:50 -0400 X-UUID: a49d46d224d14aada21dbf21a3a30361-20200604 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:MIME-Version:Content-Type:References:In-Reply-To:Date:CC:To:From:Subject:Message-ID; bh=SuYNiPB5NMghHlkxCe+dQYVYe8ChAYf4pPTeZHrmuOY=; b=cxWmki0HYq5dTH7OE36wYaWDVyjQa2U44HAOaO3FE5USytxAnE+y0NAV5k37tr2j/BfL0U/bzlqBGYulhbWhGEfDP9HmHS0c72Hzh33XnO4C1kcELbjb2cQNIa0YjJVZJUX23CDX35yflbrmS8H4LyGad3l+J8YfJB0Vx4Xkw58=; X-UUID: a49d46d224d14aada21dbf21a3a30361-20200604 Received: from mtkcas36.mediatek.inc [(172.27.4.253)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 91782993; Thu, 04 Jun 2020 10:35:41 +0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS31N2.mediatek.inc (172.27.4.87) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 4 Jun 2020 10:35:39 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 4 Jun 2020 10:35:40 +0800 Message-ID: <1591238018.8804.555.camel@mhfsdcap03> Subject: Re: [V6, 2/2] media: i2c: dw9768: Add DW9768 VCM driver From: Dongchun Zhu To: Tomasz Figa CC: Linus Walleij , Bartosz Golaszewski , Mauro Carvalho Chehab , Andy Shevchenko , Rob Herring , Mark Rutland , Sakari Ailus , Nicolas Boichat , Matthias Brugger , Cao Bing Bu , srv_heupstream , "moderated list:ARM/Mediatek SoC support" , "list@263.net:IOMMU DRIVERS , Joerg Roedel ," , Sj Huang , Linux Media Mailing List , linux-devicetree , Louis Kuo , "Shengnan Wang =?UTF-8?Q?=28=E7=8E=8B=E5=9C=A3=E7=94=B7=29?=" , Date: Thu, 4 Jun 2020 10:33:38 +0800 In-Reply-To: References: <20200518132731.20855-1-dongchun.zhu@mediatek.com> <20200518132731.20855-3-dongchun.zhu@mediatek.com> <20200521195113.GC14214@chromium.org> <1590139561.8804.390.camel@mhfsdcap03> <1590570089.8804.453.camel@mhfsdcap03> Content-Type: text/plain; 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