linux-kernel - Re: [PATCH v1 00/13] intel-lpss: support non-ACPI platforms

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Message-ID: <1448376591.15393.23.camel@linux.intel.com>
Date:	Tue, 24 Nov 2015 16:49:51 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jarkko Nikula <jarkko.nikula@...ux.intel.com>,
	linux-i2c@...r.kernel.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
	Mika Westerberg <mika.westerberg@...ux.intel.com>,
	Kevin Fenzi <kevin@...ye.com>, Arnd Bergmann <arnd@...db.de>,
	Wolfram Sang <wsa@...-dreams.de>
Subject: Re: [PATCH v1 00/13] intel-lpss: support non-ACPI platforms

On Tue, 2015-11-24 at 16:11 +0100, Rafael J. Wysocki wrote:
> On Tuesday, November 24, 2015 12:22:46 PM Andy Shevchenko wrote:
> > This series includes few logical sets that bring a support of non-
> > ACPI
> > platforms for Intel Skylake.
> > 
> > First part is a refactoring of built-in device properties support:
> >  - keep single value inside the structure
> >  - provide helper macros to define built-in properties
> >  - fall back to secondary fwnode if primary has no asked property
> > 
> > Second one is modifications to MFD code and intel-lpss.c driver in
> > particular
> > to define and pass built-in properties to the individual drivers.
> > 
> > Last part is a fix for I2C bug found on Lenovo Yoga hardware and a
> > first
> > converted user.
> > 
> > Built-in device properties is an alternative to platform data. It
> > provides a
> > unified API that drivers can use to cover all cases at once: DT,
> > ACPI, and
> > built-in properties.
> > 
> > With this series applied platform data can be considered obsolete.
> > Moreover,
> > built-in device properties allows to adjust existing configuration,
> > for
> > example, in cases when ACPI values are wrong on some platforms.
> > 
> > The series has been tested on available hardware and doesn't break
> > current
> > behaviour. But we ask you, Kevin, to apply the series on your side
> > and check
> > with Lenovo hardware.
> > 
> > Andy Shevchenko (8):
> >   device property: always check for fwnode type
> >   device property: rename helper functions
> >   device property: refactor built-in properties support
> >   device property: keep single value inplace
> >   device property: improve readability of macros
> >   device property: return -EINVAL when property isn't found in ACPI
> >   device property: Fallback to secondary fwnode if primary misses
> > the
> >     property
> >   mfd: core: propagate device properties to sub devices drivers
> > 
> > Heikki Krogerus (1):
> >   device property: helper macros for property entry creation
> > 
> > Mika Westerberg (4):
> >   mfd: intel-lpss: Add support for passing device properties
> >   mfd: intel-lpss: Pass HSUART configuration via properties
> >   mfd: intel-lpss: Pass SDA hold time to I2C host controller driver
> >   i2c: designware: Convert to use unified device property API
> > 
> >  drivers/acpi/property.c                     |  10 +-
> >  drivers/base/property.c                     | 298
> > +++++++++++++++++++++-------
> >  drivers/i2c/busses/i2c-designware-platdrv.c |  48 ++---
> >  drivers/mfd/intel-lpss-acpi.c               |  18 +-
> >  drivers/mfd/intel-lpss-pci.c                |  43 +++-
> >  drivers/mfd/intel-lpss.c                    |  16 +-
> >  drivers/mfd/intel-lpss.h                    |   2 +
> >  drivers/mfd/mfd-core.c                      |   3 +
> >  include/linux/mfd/core.h                    |   5 +
> >  include/linux/property.h                    |  87 ++++++--
> >  10 files changed, 394 insertions(+), 136 deletions(-)
> 
> All patches in this series look good to me overall, but please fix
> the build
> problems reported by 0-day and resubmit.

Thanks for fast response. We will do that later this week while
gathering comments from others.



> Thanks,
> Rafael
> 

-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy

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