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From: Yunfei Dong <yunfei.dong@mediatek.com>
To: Yunfei Dong <yunfei.dong@mediatek.com>,
	Alexandre Courbot <acourbot@chromium.org>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	Tzung-Bi Shih <tzungbi@chromium.org>,
	Tiffany Lin <tiffany.lin@mediatek.com>,
	Andrew-CT Chen <andrew-ct.chen@mediatek.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Rob Herring <robh+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Tomasz Figa <tfiga@google.com>
Cc: Hsin-Yi Wang <hsinyi@chromium.org>,
	Fritz Koenig <frkoenig@chromium.org>,
	Irui Wang <irui.wang@mediatek.com>, <linux-media@vger.kernel.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<srv_heupstream@mediatek.com>,
	<linux-mediatek@lists.infradead.org>,
	<Project_Global_Chrome_Upstream_Group@mediatek.com>,
	George Sun <george.sun@mediatek.com>
Subject: [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT
Date: Wed, 11 Aug 2021 10:57:47 +0800	[thread overview]
Message-ID: <20210811025801.21597-2-yunfei.dong@mediatek.com> (raw)
In-Reply-To: <20210811025801.21597-1-yunfei.dong@mediatek.com>

Different platform may has different numbers of register bases. Gets the
numbers of register bases from DT (sizeof(u32) * 4 bytes for each).

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../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


  reply	other threads:[~2021-08-11  2:59 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
2021-08-11  2:57 ` Yunfei Dong [this message]
2021-08-20  3:29   ` [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Tzung-Bi Shih
2021-08-11  2:57 ` [PATCH v5, 02/15] media: mtk-vcodec: Align vcodec wake up interrupt interface Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 03/15] media: mtk-vcodec: Refactor vcodec pm interface Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 04/15] media: mtk-vcodec: Use component framework to manage each hardware information Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings Yunfei Dong
2021-08-17 20:33   ` Rob Herring
2021-08-11  2:57 ` [PATCH v5, 06/15] media: mtk-vcodec: Use pure single core for MT8183 Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 07/15] media: mtk-vcodec: Add irq interface for multi hardware Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 08/15] media: mtk-vcodec: Add msg queue feature for lat and core architecture Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 09/15] media: mtk-vcodec: Generalize power and clock on/off interfaces Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 10/15] media: mtk-vcodec: Add new interface to lock different hardware Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 11/15] media: mtk-vcodec: Add core thread Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 12/15] media: mtk-vcodec: Support 34bits dma address for vdec Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
2021-08-11 17:24   ` Rob Herring
2021-08-17  3:38     ` yunfei.dong
2021-08-11 17:41   ` Rob Herring
2021-08-11 17:59   ` Laurent Pinchart
2021-08-17  3:50     ` yunfei.dong
2021-08-29 20:54       ` Ezequiel Garcia
2021-09-01  3:49         ` yunfei.dong
2021-09-01 11:50           ` Ezequiel Garcia
2021-09-02  6:09             ` yunfei.dong
2021-09-03  4:02               ` Chen-Yu Tsai
2021-08-29 20:50     ` Ezequiel Garcia
2021-08-30  6:07       ` yunfei.dong
2021-08-30  9:00         ` Laurent Pinchart
2021-08-11  2:58 ` [PATCH v5, 14/15] media: mtk-vcodec: Add core dec and dec end ipi msg Yunfei Dong
2021-08-11  2:58 ` [PATCH v5, 15/15] media: mtk-vcodec: Use codec type to separate different hardware Yunfei Dong
2021-08-18 14:11 ` [PATCH v5, 00/15] Using component framework to support multi hardware decode Ezequiel Garcia
2021-08-19  7:13   ` yunfei.dong
2021-08-19 14:10     ` Ezequiel Garcia
2021-08-20  7:59       ` yunfei.dong
2021-08-22 14:32         ` Ezequiel Garcia
2021-08-24 10:21           ` yunfei.dong
2021-08-25  5:48             ` yunfei.dong
2021-08-22 16:50   ` Daniel Vetter
2021-08-22 17:57     ` Ezequiel Garcia
2021-08-26  9:14       ` Daniel Vetter

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