From patchwork Wed Sep 1 08:32:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?WXVuZmVpIERvbmcgKOiRo+S6kemjnik=?= X-Patchwork-Id: 505352 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=-16.7 required=3.0 tests=BAYES_00, 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=ham 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 CE67AC43216 for ; Wed, 1 Sep 2021 08:32:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B6F6161074 for ; Wed, 1 Sep 2021 08:32:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243283AbhIAIdY (ORCPT ); Wed, 1 Sep 2021 04:33:24 -0400 Received: from mailgw01.mediatek.com ([60.244.123.138]:42924 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S242943AbhIAIdW (ORCPT ); Wed, 1 Sep 2021 04:33:22 -0400 X-UUID: 42404dd65f70447d98b39cfe3869678d-20210901 X-UUID: 42404dd65f70447d98b39cfe3869678d-20210901 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 190673582; Wed, 01 Sep 2021 16:32:22 +0800 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 1 Sep 2021 16:32:20 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Wed, 1 Sep 2021 16:32:20 +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; Wed, 1 Sep 2021 16:32:18 +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 , Laurent Pinchart CC: Daniel Vetter , dri-devel , Hsin-Yi Wang , "Fritz Koenig" , Irui Wang , , , , , , , Subject: [PATCH v6, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Date: Wed, 1 Sep 2021 16:32:01 +0800 Message-ID: <20210901083215.25984-2-yunfei.dong@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210901083215.25984-1-yunfei.dong@mediatek.com> References: <20210901083215.25984-1-yunfei.dong@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 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) {