[PATCH 1/3] Revert "ARM: dts: sun8i: Add new sun8i-a33-q8-tzx-723q4.dts file"
Maxime Ripard
maxime.ripard at free-electrons.com
Thu Sep 24 23:42:58 PDT 2015
On Thu, Sep 24, 2015 at 05:23:52PM +0200, Hans de Goede wrote:
> The tzx-723q[a]4 board variant of A33 based Q8 formfactor tablets was
> given its own dts file because the mmc would not work with a drive
> strength of 30mA, Android seemed to be using a lower drive-strength
> and doing the same with the upstream kernel seemed to fix this issue.
>
> While working on a similar fix for u-boot I noticed that Android did
> not use a lower drive strength for mmc0, but for mmc1, so mmc0 should
> work fine with a drive strength of 30mA.
>
> Further investigation has shown that Allwinner is using slightly
> tweaked clock sample phase settings in newer Android kernels, and
> that updating the mainstream sunxi mmc driver to these settings fixes
> this.
>
> With this fixed we no longer need a dts file specifically for these
> pcb varants -> drop this dts file.
I dropped the patch.
> This reverts commit fb61c559a810f1487892b83d2d0606af1d020318.
Checkpatch prints an error about this one. Make sure you have the
right commit format.
Thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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