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=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 07923C4338F for ; Tue, 10 Aug 2021 08:39:24 +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 BFDAA6056C for ; Tue, 10 Aug 2021 08:39:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org BFDAA6056C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=BexpBKIi4vPk/SiPE2r3AOwsCaHSqL6S1vXD8pfbJlc=; b=DUBvk1oOF0AQtp e82FGQP98Fy3xL+H/sQqRSwKJwtuHUeYoPZol42nY7jfsQe7TqhvVJaG3OL0cLOhRRDzYcbqjQgQq 8HoxVDyZXODYMxoTDOa7kDfct3lyXaT2UB9rHe47W3hCA4y4hufoPx91Gt46vYyAGxwnsc3e+HaZv l8Ar+J9uF4q1Mh/yvZtaPqaFrw6d3Os1oCbNZ2CMYhz5+ZFEJnO3+uHYz60Wg/t9IWgwlFVi3n/JV ZIhTRQG7HrDpY9G0/otBMLFDG3LUADJaRj1D+KFuz2k/vtmqLmD2fM68oqRbjhFNizn9zuUxiouZp S4ERVPrkuJH/hApmIfDg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDNFg-0033j3-Se; Tue, 10 Aug 2021 08:36:49 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDND3-0032Bp-7C; Tue, 10 Aug 2021 08:34:09 +0000 X-UUID: 04ae2005b04e4ae3958d43c533c2dc0f-20210810 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:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=jdveSQhvYQpE+92tkHAKPiJSTFKSzkdKtKQpxKrlAtQ=; b=HOKjD0Yk5npnvpoS65T9FRmSD/JacW7MQ8e1hskhfkwC9AxhIfovG0Ch6ccKjePVfhUr9g/uT7GVzhN+ElV8RJhRBNzWaTRsDj2qDsGHt1K3gdZcN/2Yw4EhJRTu17qsBatfL0VtW+nXcdT7fKAPa6q3/rw5BJ2B3qKX9cnXI8Q=; X-UUID: 04ae2005b04e4ae3958d43c533c2dc0f-20210810 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 884360914; Tue, 10 Aug 2021 01:33:58 -0700 Received: from MTKMBS02N1.mediatek.inc (172.21.101.77) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 10 Aug 2021 01:31:23 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 10 Aug 2021 16:31:21 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 10 Aug 2021 16:31:20 +0800 From: Yunfei Dong To: Yunfei Dong , Alexandre Courbot , Hans Verkuil , "Tzung-Bi Shih" , Tiffany Lin , Andrew-CT Chen , Mauro Carvalho Chehab , Rob Herring , Matthias Brugger , Tomasz Figa CC: Hsin-Yi Wang , Fritz Koenig , Irui Wang , , , , , , , , George Sun Subject: [PATCH v4, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Date: Tue, 10 Aug 2021 16:30:33 +0800 Message-ID: <20210810083047.16693-2-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210810083047.16693-1-yunfei.dong@mediatek.com> References: <20210810083047.16693-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210810_013405_347025_FB9BDF7D X-CRM114-Status: GOOD ( 18.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Different platform may has different numbers of register bases. Gets the numbers of register bases from DT (sizeof(u32) * 4 bytes for each). Change-Id: I7af216c85ee72d55760eae79c20cc212c3b537c1 Signed-off-by: Yunfei Dong --- v4: fix comments --- .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 37 ++++++++++++++----- 1 file changed, 28 insertions(+), 9 deletions(-) diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c index 55ae198dbcf9..983e0f2831af 100644 --- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c +++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c @@ -78,6 +78,30 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv) return IRQ_HANDLED; } +static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dev *dev) +{ + struct platform_device *pdev = dev->plat_dev; + int reg_num, i; + + /* Sizeof(u32) * 4 bytes for each register base. */ + reg_num = of_property_count_elems_of_size(pdev->dev.of_node, "reg", + sizeof(u32) * 4); + if (reg_num <= 0 || reg_num > NUM_MAX_VDEC_REG_BASE) { + dev_err(&pdev->dev, "Invalid register property size: %d\n", reg_num); + return -EINVAL; + } + + for (i = 0; i < reg_num; i++) { + dev->reg_base[i] = devm_platform_ioremap_resource(pdev, i); + if (IS_ERR(dev->reg_base[i])) + return PTR_ERR(dev->reg_base[i]); + + mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]); + } + + return 0; +} + static int fops_vcodec_open(struct file *file) { struct mtk_vcodec_dev *dev = video_drvdata(file); @@ -206,7 +230,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev) struct resource *res; phandle rproc_phandle; enum mtk_vcodec_fw_type fw_type; - int i, ret; + int ret; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) @@ -238,14 +262,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev) goto err_dec_pm; } - for (i = 0; i < NUM_MAX_VDEC_REG_BASE; i++) { - dev->reg_base[i] = devm_platform_ioremap_resource(pdev, i); - if (IS_ERR((__force void *)dev->reg_base[i])) { - ret = PTR_ERR((__force void *)dev->reg_base[i]); - goto err_res; - } - mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]); - } + ret = mtk_vcodec_get_reg_bases(dev); + if (ret) + goto err_res; res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (res == NULL) { -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel