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| author | Stefan Schake <stschake@gmail.com> | 2018-04-20 15:25:44 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2018-04-23 21:32:55 +0300 |
| commit | 766cc6b1f7fc9e10f096a84d147e48dead18ba59 (patch) | |
| tree | 29491c5460283f6b4652f6e78deb51774b61d97b /drivers/gpu/drm/vc4/vc4_drv.c | |
| parent | 22445f0316a253406472ddcda98c3341b1eebaf4 (diff) | |
| download | linux-766cc6b1f7fc9e10f096a84d147e48dead18ba59.tar.xz | |
drm/vc4: Add CTM support
The hardware has a single block for applying a CTM prior to gamma lut.
It can be fed with pixels from one of our CRTC at a time and uses a
matrix with S0.9 scalars. Use private atomic state to reject attempts
from userland to apply CTM for more than one CRTC at a time and reject
matrices with scalars that we can't approximate without integer bits.
Signed-off-by: Stefan Schake <stschake@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/218067/
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_drv.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_drv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c index af9515ae0e0a..40ddeaafd65f 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.c +++ b/drivers/gpu/drm/vc4/vc4_drv.c @@ -319,6 +319,7 @@ dev_unref: static void vc4_drm_unbind(struct device *dev) { struct drm_device *drm = dev_get_drvdata(dev); + struct vc4_dev *vc4 = to_vc4_dev(drm); drm_dev_unregister(drm); @@ -326,6 +327,8 @@ static void vc4_drm_unbind(struct device *dev) drm_mode_config_cleanup(drm); + drm_atomic_private_obj_fini(&vc4->ctm_manager); + drm_dev_unref(drm); } |