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Tue, 16 Apr 2019 17:30:17 +0800 From: Stu Hsieh To: Mauro Carvalho Chehab , Rob Herring , CK Hu Subject: [PATCH v2 05/15] [media] mtk-mipicsi: get the w/h/bytepwerline for mtk_mipicsi Date: Tue, 16 Apr 2019 17:30:05 +0800 Message-ID: <1555407015-18130-6-git-send-email-stu.hsieh@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1555407015-18130-1-git-send-email-stu.hsieh@mediatek.com> References: <1555407015-18130-1-git-send-email-stu.hsieh@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-20190416_103144_737411_2E4A1461 X-CRM114-Status: GOOD ( 16.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, srv_heupstream@mediatek.com, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, Stu Hsieh , Matthias Brugger , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org This patch get the w/h/bytepwerline to save in mtk_mipicsi. Signed-off-by: Stu Hsieh --- .../media/platform/mtk-mipicsi/mtk_mipicsi.c | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c index 16f6bc480f4e..10782fccca79 100644 --- a/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c +++ b/drivers/media/platform/mtk-mipicsi/mtk_mipicsi.c @@ -99,6 +99,9 @@ struct mtk_mipicsi_dev { u32 id; int clk_num; struct clk *clk[MIPICSI_CLK]; + u32 width; + u32 height; + u32 bytesperline; }; #define MTK_MIPICSI_BUS_PARAM (V4L2_MBUS_MASTER | \ @@ -110,13 +113,36 @@ struct mtk_mipicsi_dev { V4L2_MBUS_PCLK_SAMPLE_FALLING | \ V4L2_MBUS_DATA_ACTIVE_HIGH) +static u32 get_bytesperline(const u32 fmt, const u32 width) +{ + u32 bytesperline = 0; + + switch (fmt) { + case MEDIA_BUS_FMT_UYVY8_2X8: + case MEDIA_BUS_FMT_VYUY8_2X8: + case MEDIA_BUS_FMT_YUYV8_2X8: + case MEDIA_BUS_FMT_YVYU8_2X8: + bytesperline = width * 2U; + break; + default: + break; + } + + return bytesperline; +} + static int mtk_mipicsi_add_device(struct soc_camera_device *icd) { + struct soc_camera_host *ici = to_soc_camera_host(icd->parent); + struct mtk_mipicsi_dev *mipicsi = ici->priv; struct v4l2_subdev *sd = soc_camera_to_subdev(icd); struct v4l2_subdev_format format = { .which = V4L2_SUBDEV_FORMAT_ACTIVE, }; int ret; + u32 width; + u32 height; + u32 fmt; /* Get width/height info from subdev. Then use them to set register */ ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &format); @@ -125,6 +151,19 @@ static int mtk_mipicsi_add_device(struct soc_camera_device *icd) return ret; } + width = format.format.width; + height = format.format.height; + fmt = format.format.code; + mipicsi->bytesperline = get_bytesperline(fmt, width); + if ((width == 0U) || (height == 0U) || (mipicsi->bytesperline == 0U)) { + dev_err(icd->parent, "invalid sub device width/height/bytesperline %d/%d/%d\n", + width, height, mipicsi->bytesperline); + return -EINVAL; + } + + mipicsi->width = width; + mipicsi->height = height; + /* * If power domain was closed before, it will be open. * Then clock will be open and register will be set -- 2.18.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel