The code that assigns HVS channels during atomic_check is starting to grow
a bit big, let's move it into a separate function.

Signed-off-by: Maxime Ripard <max...@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_kms.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index 80378c74fcd6..4aa0577bd055 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -612,13 +612,13 @@ static const struct drm_private_state_funcs 
vc4_load_tracker_state_funcs = {
 };
 
 
-static int
-vc4_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
+static int vc4_pv_muxing_atomic_check(struct drm_device *dev,
+                                     struct drm_atomic_state *state)
 {
        unsigned long unassigned_channels = GENMASK(HVS_NUM_CHANNELS - 1, 0);
        struct drm_crtc_state *old_crtc_state, *new_crtc_state;
        struct drm_crtc *crtc;
-       int i, ret;
+       unsigned int i;
 
        /*
         * Since the HVS FIFOs are shared across all the pixelvalves and
@@ -691,6 +691,18 @@ vc4_atomic_check(struct drm_device *dev, struct 
drm_atomic_state *state)
                }
        }
 
+       return 0;
+}
+
+static int
+vc4_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
+{
+       int ret;
+
+       ret = vc4_pv_muxing_atomic_check(dev, state);
+       if (ret)
+               return ret;
+
        ret = vc4_ctm_atomic_check(dev, state);
        if (ret < 0)
                return ret;
-- 
git-series 0.9.1
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