Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
drm/bridge: ite-it66121: get/put the next bridge
This driver obtains a bridge pointer from of_drm_find_bridge() in the probe
function and stores it until driver removal. of_drm_find_bridge() is
deprecated. Move to of_drm_find_and_get_bridge() for the bridge to be
refcounted and use bridge->next_bridge to put the reference on
deallocation.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patch.msgid.link/20251216-drm-bridge-alloc-getput-drm_of_find_bridge-v3-7-b5165fab8058@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
+3
-4
+3
-4
drivers/gpu/drm/bridge/ite-it66121.c
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-4
drivers/gpu/drm/bridge/ite-it66121.c
···
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struct it66121_ctx {
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struct regmap *regmap;
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struct drm_bridge bridge;
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-
struct drm_bridge *next_bridge;
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struct drm_connector *connector;
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struct device *dev;
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struct gpio_desc *gpio_reset;
···
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if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
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return -EINVAL;
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-
ret = drm_bridge_attach(encoder, ctx->next_bridge, bridge, flags);
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+
ret = drm_bridge_attach(encoder, ctx->bridge.next_bridge, bridge, flags);
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if (ret)
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return ret;
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···
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return -EINVAL;
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}
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-
ctx->next_bridge = of_drm_find_bridge(ep);
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+
ctx->bridge.next_bridge = of_drm_find_and_get_bridge(ep);
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of_node_put(ep);
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-
if (!ctx->next_bridge) {
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+
if (!ctx->bridge.next_bridge) {
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dev_dbg(ctx->dev, "Next bridge not found, deferring probe\n");
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return -EPROBE_DEFER;
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}