target/linux/bcm27xx/patches-5.15/950-0541-vc04_services-isp-Report-input-node-as-wanting-full-.patch

   1 From a51b310cccaeac9b0971323dc6fe641fa632c63c Mon Sep 17 00:00:00 2001
   2 From: David Plowman <david.plowman@raspberrypi.com>
   3 Date: Thu, 21 Oct 2021 14:49:15 +0100
   4 Subject: [PATCH] vc04_services: isp: Report input node as wanting full
   5  range RAW color space
   6
   7 RAW color spaces are more usually reported as having full range
   8 quantization.
   9
  10 Tested using libcamera.
  11
  12 Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
  13 ---
  14  drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c | 4 +++-
  15  1 file changed, 3 insertions(+), 1 deletion(-)
  16
  17 --- a/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
  18 +++ b/drivers/staging/vc04_services/bcm2835-isp/bcm2835-v4l2-isp.c
  19 @@ -1032,7 +1032,9 @@ static int bcm2835_isp_node_try_fmt(stru
  20                 /* In all cases, we only support the defaults for these: */
  21                 f->fmt.pix.ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(f->fmt.pix.colorspace);
  22                 f->fmt.pix.xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(f->fmt.pix.colorspace);
  23 -               is_rgb = f->fmt.pix.colorspace == V4L2_COLORSPACE_SRGB;
  24 +               /* RAW counts as sRGB here so that we get full range. */
  25 +               is_rgb = f->fmt.pix.colorspace == V4L2_COLORSPACE_SRGB ||
  26 +                       f->fmt.pix.colorspace == V4L2_COLORSPACE_RAW;
  27                 f->fmt.pix.quantization = V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, f->fmt.pix.colorspace,
  28                                                                         f->fmt.pix.ycbcr_enc);
  29