On 11 November 2015 at 11:26, Roger Quadros <rogerq@xxxxxx> wrote: > Hi, > > On 25/08/15 17:50, Ulf Hansson wrote: >> On 3 August 2015 at 14:26, Kishon Vijay Abraham I <kishon@xxxxxx> wrote: >>> From: Roger Quadros <rogerq@xxxxxx> >>> >>> For platforms that doesn't have explicit regulator control in MMC, >>> populate voltage-ranges in MMC device tree node and use >>> mmc_of_parse_voltage to get ocr_avail >> >> I don't like this. >> >> If we are able to fetch the OCR mask via an external regulator, that >> shall be done. > > Agreed. >> >> I think the mmc_of_parse_voltage() API and the corresponding DT >> binding it parses, should be used for those HW when we don't have an >> external regulator to use. For example if the MMC controller itself >> somehow controls the voltage levels. Is that really the case for you? > > What shall be done if there is no software control of the external regulator > and it is fixed at a certain voltage? I think you can model that as a so called fixed regulator. Kind regards Uffe -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
