Am 05.11.20 um 14:56 schrieb Maxime Ripard:
The code that assigns HVS channels during atomic_check is starting to grow
a bit big, let's move it into a separate function.

Reviewed-by: Hoegeun Kwon <hoegeun.k...@samsung.com>
Tested-by: Hoegeun Kwon <hoegeun.k...@samsung.com>
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 ad69c70f66a2..bb2efc5d2d01 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -662,13 +662,13 @@ static int vc4_load_tracker_obj_init(struct vc4_dev *vc4)
        return drmm_add_action_or_reset(&vc4->base, vc4_load_tracker_obj_fini, 
NULL);
  }
-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;

Thanks for fixing the type. It's always itching me when people use signed types for counters and array indices. It's just... not right. :) If you want to be super-correct you might as well make it size_t. Anyway

Reviewed-by: Thomas Zimmermann <tzimmerm...@suse.de>

/*
         * Since the HVS FIFOs are shared across all the pixelvalves and
@@ -741,6 +741,18 @@ 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;


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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