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authorChristopher Bostic <cbostic@linux.vnet.ibm.com>2018-02-12 15:45:48 +1030
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-14 19:11:01 +0100
commitdd7987392324960cb0184a4564b06e15c66d3f55 (patch)
treef31d3b59acecb3322474589e0ffd49145afcee88 /Documentation/devicetree/bindings/fsi
parentfsi: master: Clarify master lifetimes & fix use-after-free in hub master (diff)
downloadlinux-dev-dd7987392324960cb0184a4564b06e15c66d3f55.tar.xz
linux-dev-dd7987392324960cb0184a4564b06e15c66d3f55.zip
dt-bindings: fsi: Add optional property no-scan-on-init
Add an optional FSI master property 'no-scan-on-init. This can be specified to indicate that a master should not be automatically scanned at init time. This is required in cases where a scan could interfere with another FSI master on the same bus. Signed-off-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Joel Stanley <joel@jms.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/fsi')
-rw-r--r--Documentation/devicetree/bindings/fsi/fsi.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fsi/fsi.txt b/Documentation/devicetree/bindings/fsi/fsi.txt
index 4eaf488d4015..ab516c673a4b 100644
--- a/Documentation/devicetree/bindings/fsi/fsi.txt
+++ b/Documentation/devicetree/bindings/fsi/fsi.txt
@@ -56,6 +56,13 @@ addresses (link index and slave ID), and no size:
#address-cells = <2>;
#size-cells = <0>;
+An optional boolean property can be added to indicate that a particular master
+should not scan for connected devices at initialization time. This is
+necessary in cases where a scan could cause arbitration issues with other
+masters that may be present on the bus.
+
+ no-scan-on-init;
+
FSI slaves
----------