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?