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From: Jeffy Chen <jeffy.chen@rock-chips.com>
To: linux-kernel@vger.kernel.org
Cc: briannorris@chromium.org, dianders@chromium.org,
	tfiga@chromium.org, seanpaul@chromium.org, zyw@rock-chips.com,
	mark.yao@rock-chips.com, Jeffy Chen <jeffy.chen@rock-chips.com>,
	Yakir Yang <kuankuan.y@gmail.com>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	dri-devel@lists.freedesktop.org, Marek Vasut <marex@denx.de>,
	David Airlie <airlied@linux.ie>,
	Archit Taneja <architt@codeaurora.org>
Subject: [PATCH v5 04/12] drm: bridge: analogix: Destroy connector & encoder when unbinding
Date: Thu,  6 Apr 2017 20:31:17 +0800	[thread overview]
Message-ID: <1491481885-13775-5-git-send-email-jeffy.chen@rock-chips.com> (raw)
In-Reply-To: <1491481885-13775-1-git-send-email-jeffy.chen@rock-chips.com>

Normally we do this in drm_mode_config_cleanup. But:
1/ analogix dp's connector is allocated in bind, and freed after unbind.
So we need to destroy it in unbind to avoid further access.
2/ the drm bridge is attached in bind, and detached in encoder cleanup.
So we need to destroy encoder in unbind.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
---

Changes in v5: None
Changes in v4:
Address Andrzej Hajda <a.hajda@samsung.com>'s comments.

Changes in v3: None
Changes in v2: None

 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index d05ade4..4c758ed 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1439,6 +1439,8 @@ void analogix_dp_unbind(struct device *dev, struct device *master,
 	struct analogix_dp_device *dp = dev_get_drvdata(dev);
 
 	analogix_dp_bridge_disable(dp->bridge);
+	dp->connector.funcs->destroy(&dp->connector);
+	dp->encoder->funcs->destroy(dp->encoder);
 
 	if (dp->plat_data->panel) {
 		if (drm_panel_unprepare(dp->plat_data->panel))
-- 
2.1.4

  parent reply	other threads:[~2017-04-06 12:32 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-06 12:31 [PATCH v5 00/12] drm: rockchip: Fix rockchip drm unbind crash error Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 01/12] drm: bridge: analogix: Detach panel when unbinding analogix dp Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 02/12] drm: bridge: analogix: Unregister dp aux when unbinding Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 03/12] drm: bridge: analogix: Disable clock " Jeffy Chen
2017-04-07 11:32   ` Andrzej Hajda
2017-04-06 12:31 ` Jeffy Chen [this message]
2017-04-07 12:01   ` [PATCH v5 04/12] drm: bridge: analogix: Destroy connector & encoder " Andrzej Hajda
2017-04-06 12:31 ` [PATCH v5 05/12] drm/rockchip: cdn-dp: Don't try to release firmware when not loaded Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 06/12] drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 07/12] drm/rockchip: vop: Enable pm domain before vop_initial Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 08/12] drm/rockchip: vop: Unprepare clocks when unbinding Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 09/12] drm/rockchip: analogix_dp: Disable clock " Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 10/12] drm/rockchip: Reoder drm bind/unbind sequence Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 11/12] drm/rockchip: Shutdown all crtcs when unbinding drm Jeffy Chen
2017-04-06 12:31 ` [PATCH v5 12/12] drm/drm_ioctl.c: Break ioctl when drm device not registered Jeffy Chen
2017-04-07  7:16   ` Daniel Vetter
2017-04-07  9:24     ` jeffy
2017-04-07 18:34       ` Daniel Vetter
2017-04-07 17:36 ` [PATCH v5 00/12] drm: rockchip: Fix rockchip drm unbind crash error Sean Paul

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