This is a note to let you know that I've just added the patch titled
gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading
to the 4.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
gpu-ipu-v3-fix-imx-ipuv3-crtc-module-autoloading.patch
and it can be found in the queue-4.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 503fe87bd0a8346ba9d8b7f49115dcd0a4185226 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Date: Wed, 27 Apr 2016 10:17:51 +0200
Subject: gpu: ipu-v3: Fix imx-ipuv3-crtc module autoloading
From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
commit 503fe87bd0a8346ba9d8b7f49115dcd0a4185226 upstream.
If of_node is set before calling platform_device_add, the driver core
will try to use of: modalias matching, which fails because the device
tree nodes don't have a compatible property set. This patch fixes
imx-ipuv3-crtc module autoloading by setting the of_node property only
after the platform modalias is set.
Fixes: 304e6be652e2 ("gpu: ipu-v3: Assign of_node of child platform devices to corresponding ports")
Reported-by: Dennis Gilmore <dennis@xxxxxxxx>
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Tested-By: Dennis Gilmore <dennis@xxxxxxxx>
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/ipu-v3/ipu-common.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -1068,7 +1068,6 @@ static int ipu_add_client_devices(struct
goto err_register;
}
- pdev->dev.of_node = of_node;
pdev->dev.parent = dev;
ret = platform_device_add_data(pdev, ®->pdata,
@@ -1079,6 +1078,12 @@ static int ipu_add_client_devices(struct
platform_device_put(pdev);
goto err_register;
}
+
+ /*
+ * Set of_node only after calling platform_device_add. Otherwise
+ * the platform:imx-ipuv3-crtc modalias won't be used.
+ */
+ pdev->dev.of_node = of_node;
}
return 0;
Patches currently in stable-queue which might be from p.zabel@xxxxxxxxxxxxxx are
queue-4.5/gpu-ipu-v3-fix-imx-ipuv3-crtc-module-autoloading.patch
queue-4.5/modpost-fix-module-autoloading-for-of-devices-with-generic-compatible-property.patch
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