From patchwork Tue Nov 9 12:50:12 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yunfei Dong X-Patchwork-Id: 12610607 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 86680C433FE for ; Tue, 9 Nov 2021 12:50:42 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 273C8610CB for ; Tue, 9 Nov 2021 12:50:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 273C8610CB 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.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 65A9A6E560; Tue, 9 Nov 2021 12:50:41 +0000 (UTC) Received: from mailgw01.mediatek.com (unknown [60.244.123.138]) by gabe.freedesktop.org (Postfix) with ESMTPS id 980D06E580 for ; Tue, 9 Nov 2021 12:50:39 +0000 (UTC) X-UUID: b34a7797e79548378419c2af48c3f6cc-20211109 X-UUID: b34a7797e79548378419c2af48c3f6cc-20211109 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1197279932; Tue, 09 Nov 2021 20:50:35 +0800 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 9 Nov 2021 20:50:33 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkmbs10n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.792.3 via Frontend Transport; Tue, 9 Nov 2021 20:50:32 +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 Subject: [PATCH v9, 01/19] media: mtk-vcodec: Get numbers of register bases from DT Date: Tue, 9 Nov 2021 20:50:12 +0800 Message-ID: <20211109125030.26299-2-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211109125030.26299-1-yunfei.dong@mediatek.com> References: <20211109125030.26299-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Irui Wang , Benjamin Gaignard , srv_heupstream@mediatek.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel , Project_Global_Chrome_Upstream_Group@mediatek.com, linux-mediatek@lists.infradead.org, Hsin-Yi Wang , Fritz Koenig , Dafna Hirschfeld , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Different platform may has different numbers of register bases. Gets the numbers of register bases from DT (sizeof(u32) * 4 bytes for each). Reviewed-by: Tzung-Bi Shih Signed-off-by: Yunfei Dong --- .../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 e6e6a8203eeb..59caf2163349 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) {