[PATCH AUTOSEL 4.4 15/15] powerpc/fsl: set fsl, i2c-erratum-a004447 flag for P1010 i2c controllers

[Sasha Levin]

From: Chris Packham <chris.packham at alliedtelesis.co.nz>

[ Upstream commit 19ae697a1e4edf1d755b413e3aa38da65e2db23b ]

The i2c controllers on the P1010 have an erratum where the documented
scheme for i2c bus recovery will not work (A-004447). A different
mechanism is needed which is documented in the P1010 Chip Errata Rev L.

Signed-off-by: Chris Packham <chris.packham at alliedtelesis.co.nz>
Acked-by: Michael Ellerman <mpe at ellerman.id.au>
Signed-off-by: Wolfram Sang <wsa at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
index af12ead88c5f..404f570ebe23 100644
--- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi
@@ -122,7 +122,15 @@ memory-controller at 2000 {
 	};
 
 /include/ "pq3-i2c-0.dtsi"
+	i2c at 3000 {
+		fsl,i2c-erratum-a004447;
+	};
+
 /include/ "pq3-i2c-1.dtsi"
+	i2c at 3100 {
+		fsl,i2c-erratum-a004447;
+	};
+
 /include/ "pq3-duart-0.dtsi"
 /include/ "pq3-espi-0.dtsi"
 	spi0: spi at 7000 {
-- 
2.30.2