diff options
| author |   Eric Anholt <eric@anholt.net> | 2017-07-18 14:05:06 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2017-07-26 12:19:47 -0700 |
| commit | 67022227ffb1f588e70deeccc9246ec93e26f980 (patch) | |
| tree | 6193b4a857ef06e6b285ed71786ba56bd4e0923d /drivers/gpu/drm/bridge | |
| parent | drm/vc4: add HDMI CEC support (diff) | |
| download | linux-dev-67022227ffb1f588e70deeccc9246ec93e26f980.tar.xz linux-dev-67022227ffb1f588e70deeccc9246ec93e26f980.zip | |
drm/bridge: Add a devm_ allocator for panel bridge.
This will let drivers reduce the error cleanup they need, in
particular the "is_panel_bridge" flag.
v2: Slight cleanup of remove function by Andrzej
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Philippe Cornu <philippe.cornu@st.com>
Tested-by: Philippe Cornu <philippe.cornu@st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170718210510.12229-2-eric@anholt.net
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/panel.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 685c1a480201..292ee92a9c97 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -195,3 +195,33 @@ void drm_panel_bridge_remove(struct drm_bridge *bridge) devm_kfree(panel_bridge->panel->dev, bridge); } EXPORT_SYMBOL(drm_panel_bridge_remove); + +static void devm_drm_panel_bridge_release(struct device *dev, void *res) +{ + struct drm_bridge **bridge = res; + + drm_panel_bridge_remove(*bridge); +} + +struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev, + struct drm_panel *panel, + u32 connector_type) +{ + struct drm_bridge **ptr, *bridge; + + ptr = devres_alloc(devm_drm_panel_bridge_release, sizeof(*ptr), + GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + bridge = drm_panel_bridge_add(panel, connector_type); + if (!IS_ERR(bridge)) { + *ptr = bridge; + devres_add(dev, ptr); + } else { + devres_free(ptr); + } + + return bridge; +} +EXPORT_SYMBOL(devm_drm_panel_bridge_add); |