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SubjectRe: [PATCH 0/3] regulator: tps6586x: add version detection and voltage tables
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

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