On Wed, Nov 27, 2013 at 12:45:42AM +0100, Stefan Agner wrote: > This patchset adds version detection for the tps6586x mfd family. This is > required because some regulator versions use different voltage tables. The > regulator driver now uses the right voltage table according to the > version. > > The required voltage for the SM2 converter on the Colibri T20 is 1.8V, > however, the device tree states 3.7V right now. Newer versions (>=V1.2) of > the Colibri T20 module use the TPS658643, whereas old ones (<V1.2) use the > TPS658623. Both of them have a different voltage table for SM2. The > current device tree contains a voltage which results in 1.8V for the older > TPS658623. Since the regulator driver has correct voltage tables for both > regulator versions now, we can request the correct 1.8V from the device > tree. > > Tested on Colibri T20 V1.1 and V1.2. > > Stefan Agner (3): > mfd: tps6586x: add version detection > regulator: tps6586x: add voltage table for tps658643 > ARM: tegra: set SM2 voltage correct > > arch/arm/boot/dts/tegra20-colibri-512.dtsi | 4 +- > drivers/mfd/tps6586x.c | 41 +++++++++++-- > drivers/regulator/tps6586x-regulator.c | 97 ++++++++++++++++++++---------- > include/linux/mfd/tps6586x.h | 9 +++ > 4 files changed, 110 insertions(+), 41 deletions(-) Adding Kai Poggensee on Cc. There was a variant of the Tamonten board with one of these versions of the chip (or maybe it was even yet another one). Thierry
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