From: Eric Anholt <eric@anholt.net>
To: dri-devel@lists.freedesktop.org,
Archit Taneja <architt@codeaurora.org>,
Andrzej Hajda <a.hajda@samsung.com>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Thierry Reding <thierry.reding@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 4/8] drm/bridge: Add a devm_ allocator for panel bridge.
Date: Tue, 27 Jun 2017 12:58:35 -0700 [thread overview]
Message-ID: <20170627195839.3338-5-eric@anholt.net> (raw)
In-Reply-To: <20170627195839.3338-1-eric@anholt.net>
This will let drivers reduce the error cleanup they need, in
particular the "is_panel_bridge" flag.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
drivers/gpu/drm/bridge/panel.c | 30 ++++++++++++++++++++++++++++++
include/drm/drm_bridge.h | 3 +++
2 files changed, 33 insertions(+)
diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c
index 67fe19e5a9c6..cdf367d2653a 100644
--- a/drivers/gpu/drm/bridge/panel.c
+++ b/drivers/gpu/drm/bridge/panel.c
@@ -198,3 +198,33 @@ 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 = *(struct drm_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);
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 1dc94d5392e2..6522d4cbc9d9 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -268,6 +268,9 @@ void drm_bridge_enable(struct drm_bridge *bridge);
struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel,
u32 connector_type);
void drm_panel_bridge_remove(struct drm_bridge *bridge);
+struct drm_bridge *devm_drm_panel_bridge_add(struct device *dev,
+ struct drm_panel *panel,
+ u32 connector_type);
#endif
#endif
--
2.11.0
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next prev parent reply other threads:[~2017-06-27 19:58 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 19:58 [PATCH 0/8] RPi touchscreen panel driver v4 Eric Anholt
2017-06-27 19:58 ` [PATCH 1/8] drm/vc4: Fix DSI T_INIT timing Eric Anholt
2017-06-29 9:02 ` Andrzej Hajda
2017-06-27 19:58 ` [PATCH 2/8] drm/vc4: Fix misleading name of the continuous flag Eric Anholt
2017-06-29 9:03 ` Andrzej Hajda
2017-06-27 19:58 ` [PATCH 3/8] drm/vc4: Use drm_mode_vrefresh() in DSI fixup, in case vrefresh is 0 Eric Anholt
2017-06-29 9:24 ` Andrzej Hajda
2017-06-27 19:58 ` Eric Anholt [this message]
2017-06-29 9:30 ` [PATCH 4/8] drm/bridge: Add a devm_ allocator for panel bridge Andrzej Hajda
2017-06-27 19:58 ` [PATCH 5/8] drm/vc4: Delay DSI host registration until the panel has probed Eric Anholt
2017-06-29 9:42 ` Andrzej Hajda
2017-06-27 19:58 ` [PATCH 6/8] drm: Allow DSI devices to be registered before the host registers Eric Anholt
2017-06-29 5:03 ` Archit Taneja
2017-06-29 10:39 ` Andrzej Hajda
2017-06-29 15:22 ` Eric Anholt
2017-06-30 8:48 ` Andrzej Hajda
2017-07-03 10:56 ` Archit Taneja
2017-07-14 23:01 ` Eric Anholt
2017-07-17 13:39 ` Archit Taneja
2017-07-14 22:58 ` Eric Anholt
2017-07-17 4:26 ` Archit Taneja
2017-07-18 20:13 ` Eric Anholt
2017-07-19 3:29 ` Archit Taneja
2017-08-04 9:29 ` Boris Brezillon
2017-06-27 19:58 ` [PATCH 7/8] dt-bindings: Document the Raspberry Pi Touchscreen nodes Eric Anholt
2017-06-27 19:58 ` [PATCH 8/8] drm/panel: Add support for the Raspberry Pi 7" Touchscreen Eric Anholt
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