On 13-07-17, 10:52, Chen-Yu Tsai wrote: > I'm afraid the regulator case still doesn't make sense. The voltage > constraints should be set within each supplies device node. This was > explained in the discussion in v1 [1]. I thought we were discussing about something I mentioned in one of my example but never to a point that the regulator problem doesn't exist at all. Perhaps I misunderstood your concerns. Anyway, lemme try once more with a better example. Regulator shared by: LCD and MMC (both can do DVFS) and the min/max constraint that can be set by the consumers of the regulator (both LCD/MMC) are: 1.5 V to 3 V. The bootloader has programmed the LCD to work at the highest pixel frequency, which needs the voltage to be in range from 2.5 - 3 V. Now MMC can get probed first and it can try to bring the voltages below 2.5 V. Though, 1.5 - 2.5 is a valid range for the LCD, but not at the current pixel frequency. Does that sound like a valid problem? -- viresh -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
