On 3/15/2016 11:29 AM, Linus Walleij wrote:
From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
If pinctrl_provide_dummies() is used unconditionally, then the dummy
state will be used even on DT platforms when the "init" state was
intentionally left out. Instead of "default", the dummy "init" state
will then be used during probe. Thus, when probing an I2C controller on
cold boot, communication triggered by bus notifiers broke because the
pins were not initialized.
Do it like OMAP2: use the dummy state only for non-DT platforms.
Reported-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx>
Patch applied for fixes with all the ACKs etc.
This unfortiunately coincide with the merge window so was slow
to pick it up, but it will be in the first round of fixes to Torvalds,
possibly at -rc1 possibly earlier.
TIA!
- pinctrl_provide_dummies();
+ /* Enable dummy states for those platforms without pinctrl support */
+ if (!of_have_populated_dt())
+ pinctrl_provide_dummies();
So remind we: what Renesas platforms are still not using DT?
arch/sh?
Yes, only those are left.
Yours,
Linus Walleij
MBR, Sergei
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