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[104.10.251.90]) by smtp.gmail.com with ESMTPSA id q196sm656504ooq.19.2020.03.25.10.35.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2020 10:35:02 -0700 (PDT) From: Steve Longerbeam To: linux-media@vger.kernel.org Cc: Hans Verkuil , Laurent Pinchart , Rui Miguel Silva , Philipp Zabel , Steve Longerbeam Subject: [PATCH] media: imx: utils: Default colorspace to SRGB Date: Wed, 25 Mar 2020 10:34:56 -0700 Message-Id: <20200325173456.21455-1-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The function init_mbus_colorimetry() is used to initialize the imx subdevice mbus colorimetry to some sane defaults when the subdevice is registered. Currently it guesses at a colorspace based on the passed mbus pixel format. If the format is RGB, it chooses colorspace V4L2_COLORSPACE_SRGB, and if the format is YUV, it chooses V4L2_COLORSPACE_SMPTE170M. While that might be a good guess, it's not necessarily true that a RGB pixel format encoding uses a SRGB colorspace, or that a YUV encoding uses a SMPTE170M colorspace. Instead of making this dubious guess, just default the colorspace to SRGB. Reported-by: Hans Verkuil Signed-off-by: Steve Longerbeam --- drivers/staging/media/imx/imx-media-utils.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c index fae981698c49..8344675bfd05 100644 --- a/drivers/staging/media/imx/imx-media-utils.c +++ b/drivers/staging/media/imx/imx-media-utils.c @@ -236,8 +236,7 @@ static const struct imx_media_pixfmt ipu_rgb_formats[] = { static void init_mbus_colorimetry(struct v4l2_mbus_framefmt *mbus, const struct imx_media_pixfmt *fmt) { - mbus->colorspace = (fmt->cs == IPUV3_COLORSPACE_RGB) ? - V4L2_COLORSPACE_SRGB : V4L2_COLORSPACE_SMPTE170M; + mbus->colorspace = V4L2_COLORSPACE_SRGB; mbus->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(mbus->colorspace); mbus->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(mbus->colorspace); mbus->quantization = -- 2.17.1