This is a note to let you know that I've just added the patch titled
mtd: hyperbus: hbmc-am654: Fix direct mapping setup flash access
to the 5.8-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:
mtd-hyperbus-hbmc-am654-fix-direct-mapping-setup-fla.patch
and it can be found in the queue-5.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1f792903e1f5b28cd150a3682ebf7a494e451fe0
Author: Vignesh Raghavendra <vigneshr@xxxxxx>
Date: Thu Sep 24 13:42:12 2020 +0530
mtd: hyperbus: hbmc-am654: Fix direct mapping setup flash access
[ Upstream commit aca31ce96814c84d1a41aaa109c15abe61005af7 ]
Setting up of direct mapping should be done with flash node's IO
address space and not with controller's IO region.
Fixes: b6fe8bc67d2d3 ("mtd: hyperbus: move direct mapping setup to AM654 HBMC driver")
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
Link: https://lore.kernel.org/r/20200924081214.16934-3-vigneshr@xxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/mtd/hyperbus/hbmc-am654.c b/drivers/mtd/hyperbus/hbmc-am654.c
index f350a0809f880..a808fa28cd9a1 100644
--- a/drivers/mtd/hyperbus/hbmc-am654.c
+++ b/drivers/mtd/hyperbus/hbmc-am654.c
@@ -70,7 +70,8 @@ static int am654_hbmc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
- ret = of_address_to_resource(np, 0, &res);
+ priv->hbdev.np = of_get_next_child(np, NULL);
+ ret = of_address_to_resource(priv->hbdev.np, 0, &res);
if (ret)
return ret;
@@ -103,7 +104,6 @@ static int am654_hbmc_probe(struct platform_device *pdev)
priv->ctlr.dev = dev;
priv->ctlr.ops = &am654_hbmc_ops;
priv->hbdev.ctlr = &priv->ctlr;
- priv->hbdev.np = of_get_next_child(dev->of_node, NULL);
ret = hyperbus_register_device(&priv->hbdev);
if (ret) {
dev_err(dev, "failed to register controller\n");
