diff options
| author | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2025-12-16 18:58:50 +0100 |
|---|---|---|
| committer | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2025-12-30 10:11:33 +0100 |
| commit | 900699ba830fd3558ba00f55fbf014022dc7ecdb (patch) | |
| tree | de2f1879d4714d820f89f5a9a7f69e575906a61a | |
| parent | 6802c7ee360d98a018962adb8412d42dcca28272 (diff) | |
drm/bridge: imx8qxp-pxl2dpi: get/put the companion 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 the destroy hook 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-v3-17-b5165fab8058@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
| -rw-r--r-- | drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c index 556aec3b3734..2c40ca86e319 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c @@ -63,6 +63,13 @@ static int imx8qxp_pxl2dpi_bridge_attach(struct drm_bridge *bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); } +static void imx8qxp_pxl2dpi_bridge_destroy(struct drm_bridge *bridge) +{ + struct imx8qxp_pxl2dpi *p2d = bridge->driver_private; + + drm_bridge_put(p2d->companion); +} + static int imx8qxp_pxl2dpi_bridge_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, @@ -205,6 +212,7 @@ static const struct drm_bridge_funcs imx8qxp_pxl2dpi_bridge_funcs = { .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_reset = drm_atomic_helper_bridge_reset, .attach = imx8qxp_pxl2dpi_bridge_attach, + .destroy = imx8qxp_pxl2dpi_bridge_destroy, .atomic_check = imx8qxp_pxl2dpi_bridge_atomic_check, .mode_set = imx8qxp_pxl2dpi_bridge_mode_set, .atomic_disable = imx8qxp_pxl2dpi_bridge_atomic_disable, @@ -333,7 +341,7 @@ static int imx8qxp_pxl2dpi_parse_dt_companion(struct imx8qxp_pxl2dpi *p2d) goto out; } - p2d->companion = of_drm_find_bridge(companion); + p2d->companion = of_drm_find_and_get_bridge(companion); if (!p2d->companion) { ret = -EPROBE_DEFER; DRM_DEV_DEBUG_DRIVER(p2d->dev, |