From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benoit Parrot Subject: [Patch v2 09/21] media: ti-vpe: vpe: fix a v4l2-compliance warning about invalid pixel format Date: Fri, 4 Oct 2019 11:29:40 -0500 Message-ID: <20191004162952.4963-10-bparrot@ti.com> References: <20191004162952.4963-1-bparrot@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20191004162952.4963-1-bparrot@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Hans Verkuil Cc: linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Benoit Parrot List-Id: devicetree@vger.kernel.org v4l2-compliance warns with this message: warn: v4l2-test-formats.cpp(717): \ TRY_FMT cannot handle an invalid pixelformat. warn: v4l2-test-formats.cpp(718): \ This may or may not be a problem. For more information see: warn: v4l2-test-formats.cpp(719): \ http://www.mail-archive.com/linux-media@vger.kernel.org/msg56550.html ... test VIDIOC_TRY_FMT: FAIL We need to make sure that the returns a valid pixel format in all instance. Based on the v4l2 framework convention drivers must return a valid pixel format when the requested pixel format is either invalid or not supported. Signed-off-by: Benoit Parrot Reviewed-by: Tomi Valkeinen --- drivers/media/platform/ti-vpe/vpe.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index 1278d457f753..d3f1ae8b72fa 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -351,20 +351,25 @@ enum { }; /* find our format description corresponding to the passed v4l2_format */ -static struct vpe_fmt *find_format(struct v4l2_format *f) +static struct vpe_fmt *__find_format(u32 fourcc) { struct vpe_fmt *fmt; unsigned int k; for (k = 0; k < ARRAY_SIZE(vpe_formats); k++) { fmt = &vpe_formats[k]; - if (fmt->fourcc == f->fmt.pix.pixelformat) + if (fmt->fourcc == fourcc) return fmt; } return NULL; } +static struct vpe_fmt *find_format(struct v4l2_format *f) +{ + return __find_format(f->fmt.pix.pixelformat); +} + /* * there is one vpe_dev structure in the driver, it is shared by * all instances. @@ -1599,9 +1604,9 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f, unsigned int stride = 0; if (!fmt || !(fmt->types & type)) { - vpe_err(ctx->dev, "Fourcc format (0x%08x) invalid.\n", + vpe_dbg(ctx->dev, "Fourcc format (0x%08x) invalid.\n", pix->pixelformat); - return -EINVAL; + fmt = __find_format(V4L2_PIX_FMT_YUYV); } if (pix->field != V4L2_FIELD_NONE && -- 2.17.1