The cdns-dsi bridge open-codes the bridge state initialization with
a memset and a manual assignment of the bridge pointer.

The memset is redundant since the state is already kzalloc-ed, and
__drm_atomic_helper_bridge_state_init() exists for exactly this
purpose.

Switch to it.

Signed-off-by: Maxime Ripard <[email protected]>
---
 drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c 
b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c
index cf90d4468b5c..f4cf765f0be8 100644
--- a/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c
+++ b/drivers/gpu/drm/bridge/cadence/cdns-dsi-core.c
@@ -1015,12 +1015,11 @@ cdns_dsi_bridge_atomic_reset(struct drm_bridge *bridge)
 
        dsi_state = kzalloc_obj(*dsi_state);
        if (!dsi_state)
                return NULL;
 
-       memset(dsi_state, 0, sizeof(*dsi_state));
-       dsi_state->base.bridge = bridge;
+       __drm_atomic_helper_bridge_state_init(&dsi_state->base, bridge);
 
        return &dsi_state->base;
 }
 
 static const struct drm_bridge_funcs cdns_dsi_bridge_funcs = {

-- 
2.54.0

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