[PATCH 3.12 099/133] i2c: mv64xxx: Document the newly introduced Armada XP A0 compatible
From: Greg Kroah-Hartman <hidden>
Date: 2014-02-04 22:08:14
Also in:
lkml, stable
3.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Gregory CLEMENT <gregory.clement-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> 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-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> Acked-by: Arnd Bergmann <redacted> cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Fixes: 930ab3d403ae (i2c: mv64xxx: Add I2C Transaction Generator support) Signed-off-by: Jason Cooper <redacted> Signed-off-by: Greg Kroah-Hartman <redacted> --- 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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