On 12/18/2015 07:22 PM, Mark Brown wrote: > On Fri, Dec 18, 2015 at 06:14:58PM +0200, Georgi Djakov wrote: >> The SAW2 (Subsystem Power Manager and Adaptive Voltage Scaling Wrapper) >> is part of the SPM subsystem. It is a hardware block found on some of the >> Qualcomm chipsets, which regulates the power to the CPU cores. Add some >> basic support for it, so that we can do dynamic voltage scaling. >> >> Signed-off-by: Georgi Djakov <georgi.dja...@linaro.org> >> --- >> drivers/soc/qcom/spm.c | 149 >> +++++++++++++++++++++++++++++++++++++++++++++++- > > Please don't implement regualtors outside of the regulator driver > directory unless there is a really strong reason to do so, it makes it > much easier to maintain the subsystem and keep track of what's going on. >
The reason of implementing the regulator functionality in drivers/soc is that it is part of the same hardware. The saw2 hardware manages the power controls - switching to low-power sleep modes, adaptive voltage scaling, voltage control and messaging to the PMIC. Keeping all the functionality of this hardware into a single driver seemed the suitable approach to me. But if you think this is not a strong reason, then the approach probably would be to export parts of the existing driver and use syscon from a separate driver in drivers/regulator? Thanks, Georgi -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
