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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2016-05-12 15:00:44 +0200 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2016-05-23 12:35:11 +0200 |
| commit | 310944d148e3600dcff8b346bee7fa01d34903b1 (patch) | |
| tree | ca14e1344f6122ee02f005e5e67bf8d9a75f8f80 /include/video | |
| parent | 2dcd0af568b0cf583645c8a317dd12e344b1c72a (diff) | |
| download | linux-310944d148e3600dcff8b346bee7fa01d34903b1.tar.bz2 | |
drm/imx: Match imx-ipuv3-crtc components using device node in platform data
The component master driver imx-drm-core matches component devices using
their of_node. Since commit 950b410dd1ab ("gpu: ipu-v3: Fix imx-ipuv3-crtc
module autoloading"), the imx-ipuv3-crtc dev->of_node is not set during
probing. Before that, of_node was set and caused an of: modalias to be
used instead of the platform: modalias, which broke module autoloading.
On the other hand, if dev->of_node is not set yet when the imx-ipuv3-crtc
probe function calls component_add, component matching in imx-drm-core
fails. While dev->of_node will be set once the next component tries to
bring up the component master, imx-drm-core component binding will never
succeed if one of the crtc devices is probed last.
Add of_node to the component platform data and match against the
pdata->of_node instead of dev->of_node in imx-drm-core to work around
this problem.
Cc: <stable@vger.kernel.org> # 4.4.x
Fixes: 950b410dd1ab ("gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading")
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Tested-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Diffstat (limited to 'include/video')
| -rw-r--r-- | include/video/imx-ipu-v3.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/video/imx-ipu-v3.h b/include/video/imx-ipu-v3.h index ad66589f2ae6..3a2a79401789 100644 --- a/include/video/imx-ipu-v3.h +++ b/include/video/imx-ipu-v3.h @@ -16,6 +16,7 @@ #include <linux/videodev2.h> #include <linux/bitmap.h> #include <linux/fb.h> +#include <linux/of.h> #include <media/v4l2-mediabus.h> #include <video/videomode.h> @@ -345,6 +346,7 @@ struct ipu_client_platformdata { int dc; int dp; int dma[2]; + struct device_node *of_node; }; #endif /* __DRM_IPU_H__ */ |