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powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers
authorChris Packham <chris.packham@alliedtelesis.co.nz>
Tue, 11 May 2021 21:20:50 +0000 (09:20 +1200)
committerWolfram Sang <wsa@kernel.org>
Thu, 27 May 2021 19:52:06 +0000 (21:52 +0200)
commit7adc7b225cddcfd0f346d10144fd7a3d3d9f9ea7
tree5840a428afcb511dfbf1f66169467750ebe4fe6btree | snapshot
parenta5063ab976024f72865029646d7c8c9dfa63b595commit | diff
powerpc/fsl: set fsl,i2c-erratum-a004447 flag for P2041 i2c controllers

The i2c controllers on the P2040/P2041 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 P2040 Chip
Errata Rev Q (latest available at the time of writing).

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
arch/powerpc/boot/dts/fsl/p2041si-post.dtsi diff | blob | history
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