| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.12 099/133] i2c: mv64xxx: Document the newly introduced Armada XP A0 compatible | Date | Tue, 4 Feb 2014 13:08:20 -0800 |
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3.12-stable review patch. If anyone has any objections, please let me know.
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From: Gregory CLEMENT <gregory.clement@free-electrons.com>
commit f8b94beb7e6a374cb0de531b72377c49857b35ca upstream.
The first variants of Armada XP SoCs (A0 stepping) have issues related to the i2c controller which prevent to use the offload mechanism and lead to a kernel hang during boot.
The commit introduces a new the compatible string marvell,mv78230-a0-i2c for the i2c controller.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> cc: devicetree@vger.kernel.org Fixes: 930ab3d403ae (i2c: mv64xxx: Add I2C Transaction Generator support) Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt @@ -5,7 +5,11 @@ Required properties : - reg : Offset and length of the register set for the device - compatible : Should be "marvell,mv64xxx-i2c" or "allwinner,sun4i-i2c" - or "marvell,mv78230-i2c" + or "marvell,mv78230-i2c" or "marvell,mv78230-a0-i2c" + Note: Only use "marvell,mv78230-a0-i2c" for a very rare, + initial version of the SoC which had broken offload + support. Linux auto-detects this and sets it + appropriately. - interrupts : The interrupt number Optional properties :
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