Messages in this thread | ![/](/images/icornerl.gif) | | From | Andrey Zhizhikin <> | Date | Fri, 25 Oct 2019 10:51:23 +0200 | Subject | Re: [PATCH 0/2] add regulator driver and mfd cell for Intel Cherry Trail Whiskey Cove PMIC |
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On Fri, Oct 25, 2019 at 9:55 AM Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote: > > On Fri, Oct 25, 2019 at 10:53:35AM +0300, Andy Shevchenko wrote: > > On Thu, Oct 24, 2019 at 02:29:37PM +0000, Andrey Zhizhikin wrote: > > > This patchset introduces additional regulator driver for Intel Cherry > > > Trail Whiskey Cove PMIC. It also adds a cell in mfd driver for this > > > PMIC, which is used to instantiate this regulator. > > > > > > Regulator support for this PMIC was present in kernel release from Intel > > > targeted Aero platform, but was not entirely ported upstream and has > > > been omitted in mainline kernel releases. Consecutively, absence of > > > regulator caused the SD Card interface not to be provided with Vqcc > > > voltage source needed to operate with UHS-I cards. > > > > > > Following patches are addessing this issue and making sd card interface > > > to be fully operable with UHS-I cards. Regulator driver lists an ACPI id > > > of the SD Card interface in consumers and exposes optional "vqmmc" > > > voltage source, which mmc driver uses to switch signalling voltages > > > between 1.8V and 3.3V. > > > > > > This set contains of 2 patches: one is implementing the regulator driver > > > (based on a non upstreamed version from Intel Aero), and another patch > > > registers this driver as mfd cell in exising Whiskey Cove PMIC driver. > > > > Thank you. > > Hans, Cc'ed, has quite interested in these kind of patches. > > Am I right, Hans? > > Since it's about UHS/SD, Cc to Adrian as well.
Thanks for looking into this, and including also interested people here. I've included only maintainers, but all interested parties are also very welcomed. > > -- > With Best Regards, > Andy Shevchenko > >
-- Regards, Andrey.
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