From patchwork Fri Jun 5 10:54:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongchun Zhu X-Patchwork-Id: 11589473 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7F61D175A for ; Fri, 5 Jun 2020 11:06:40 +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 1559F206FA for ; Fri, 5 Jun 2020 11:06:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="f0FQEoTu"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="bydpq7m6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1559F206FA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=Qg+4wXl9warL5YIuBinQqX57Z04aQwuAosQ1Vp+YBTk=; b=f0FQEoTuM4TORo o2WbNXHh2PhgtnDIJSQ4jFuXUGBCmix+TrPyPU4kasqmyG6EREzfFeAxzVcC1PWRwKDOjzB+NoUiZ tN5mnuEKulNQ+EG1fpVw+uetusN5JSW95sC2hMx1wJHXHwBgAn4GWBqvEZo+Jvj15RRWlU45SEnlr dxtsLMp5Da66bMtGLCR763aUdOXdATg9trp0UQpGMz0XZzcaUFOApVlim+XTUy3SLijebZ1OkIvJs vXNEv1DETZ026ZhnYrudRrV+Am91CL2arWD1MQR9ycNqztEEDCqm1n9d9odEtfdqYN/7wZZkws5R7 AqZ7URhduhihXzBWwRwg==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jhABD-00073E-Iv; Fri, 05 Jun 2020 11:06:31 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jhAB8-00071I-OF; Fri, 05 Jun 2020 11:06:28 +0000 X-UUID: 5085f83076774187aecf61726d09d4c4-20200605 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:Message-ID:Date:Subject:CC:To:From; bh=RDATlCMt7JAqD+s3CrHj64evnMGc2HkPNIFyTmwdTd4=; b=bydpq7m6/IV+fpJlBB24jPrmNyLK5ps2k5juGN/wZpfUOpHqAX9+kohzL3Q2JTkVociC55b5aFU9vA8wrFpTvXo6pZiX//9SUF3F6X0qPk2eGEhkDOwwkHdmsI30O2xSCq7NPnm4cQoz9OU+rKYgcVixYfT0RXB6ols+lM+K9Es=; X-UUID: 5085f83076774187aecf61726d09d4c4-20200605 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1241717567; Fri, 05 Jun 2020 03:06:16 -0800 Received: from mtkmbs05n1.mediatek.inc (172.21.101.15) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 5 Jun 2020 03:56:18 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs05n1.mediatek.inc (172.21.101.15) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 5 Jun 2020 18:56:18 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 5 Jun 2020 18:56:15 +0800 From: Dongchun Zhu To: , , , , , , , , , , Subject: [V7, 0/2] media: i2c: Add support for DW9768 VCM driver Date: Fri, 5 Jun 2020 18:54:10 +0800 Message-ID: <20200605105412.18813-1-dongchun.zhu@mediatek.com> X-Mailer: git-send-email 2.9.2 MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200605_040626_795442_5B59418B X-CRM114-Status: UNSURE ( 7.67 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.0 MIME_BASE64_TEXT RAW: Message text disguised using base64 encoding -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid 0.0 UNPARSEABLE_RELAY Informational: message has unparseable relay lines 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: devicetree@vger.kernel.org, srv_heupstream@mediatek.com, shengnan.wang@mediatek.com, sj.huang@mediatek.com, linux-mediatek@lists.infradead.org, dongchun.zhu@mediatek.com, louis.kuo@mediatek.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Hello, This series adds DT bindings and V4L2 sub-device driver for Dongwoon's DW9768, which is a 10-bit DAC with 100mA output current sink capability. The driver controls the position with 10-bit DAC data D[9:0] and seperates two 8-bit registers to control the VCM position as belows. DAC_MSB: D[9:8](ADDR: 0x03): +---+---+---+---+---+---+---+---+ |---|---|---|---|---|---|D09|D08| +---+---+---+---+---+---+---+---+ DAC_LSB: D[7:0](ADDR: 0x04): +---+---+---+---+---+---+---+---+ |D07|D06|D05|D04|D03|D02|D01|D00| +---+---+---+---+---+---+---+---+ This driver supports: - set DW9768 to standby mode once suspend and turn it back to active if resume - set the desired focus via V4L2_CID_FOCUS_ABSOLUTE ctrl Previous versions of this patch-set can be found here: v6: https://lore.kernel.org/linux-media/20200518132731.20855-1-dongchun.zhu@mediatek.com/ v5: https://lore.kernel.org/linux-media/20200502161727.30463-1-dongchun.zhu@mediatek.com/ v4: https://lore.kernel.org/linux-media/20200330123634.363-1-dongchun.zhu@mediatek.com/ v3: https://lore.kernel.org/linux-media/20200228155958.20657-1-dongchun.zhu@mediatek.com/ v2: https://lore.kernel.org/linux-media/20190905072142.14606-1-dongchun.zhu@mediatek.com/ v1: https://lore.kernel.org/linux-media/20190708100641.2702-1-dongchun.zhu@mediatek.com/ Mainly changes of v7 are addressing comments from Rob, Sakari, Tomasz. Compared to v6: - Refine DT bindings - Use i2c_smbus_read_byte_data() directly to replace of dw9768_read_smbus() - Calculate operation time based on the configured board-specific DT settings - Abstract async register error handling case - Fix other review comments in v6 Please review. Thanks. Dongchun Zhu (2): media: dt-bindings: media: i2c: Document DW9768 bindings media: i2c: dw9768: Add DW9768 VCM driver .../bindings/media/i2c/dongwoon,dw9768.yaml | 100 ++++ MAINTAINERS | 8 + drivers/media/i2c/Kconfig | 13 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/dw9768.c | 566 +++++++++++++++++++++ 5 files changed, 688 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml create mode 100644 drivers/media/i2c/dw9768.c