On 28.11.2013 09:13, Thierry Reding wrote: > 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). Thanks Thierry, we'll be more than happy to support testing once the re-spun patch is posted. However, we will probably do so by back-porting to L4T 16.3. For the records: We are using TPS658621C on first variant of Tamonten Tegra 2 COM (internally called 1373-111), we are using TPS658640 on variant two (1373-121). This second variant was created to be 100% compatible with our TamontenNG Tegra 3 COM (basically omitting some previously unused interfaces), using TPS658640 was an opportunistic optimization. Regards, Kai -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
