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From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
To: Marcel Holtmann <marcel@holtmann.org>
Cc: Matthias Kaehlcke <mka@chromium.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Rafael J . Wysocki" <rafael@kernel.org>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Marcin Wojtas <mw@semihalf.com>,
	Andy Shevchenko Andy Shevchenko <andy.shevchenko@gmail.com>,
	Sinan Kaya <okaya@codeaurora.org>,
	Johan Hedberg <johan.hedberg@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Pekka Enberg <penberg@kernel.org>,
	Masahiro Yamada <yamada.masahiro@socionext.com>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org,
	Balakrishna Godavarthi <bgodavar@codeaurora.org>,
	Loic Poulain <loic.poulain@linaro.org>,
	Brian Norris <briannorris@chromium.org>
Subject: Re: [PATCH v3.1 1/2] device property: Add device_get_bd_address() and fwnode_get_bd_address()
Date: Thu, 27 Sep 2018 14:38:29 +0300	[thread overview]
Message-ID: <20180927113829.GQ11965@kuha.fi.intel.com> (raw)
In-Reply-To: <DCD95AC8-D216-4CCE-B305-605A25B6B23A@holtmann.org>

Hi Marcel,

On Thu, Sep 27, 2018 at 12:24:33PM +0200, Marcel Holtmann wrote:
> > Let's not fill property.c with framework specific helper functions any
> > more!
> > 
> > Those functions are completely bluetooth specific, so they do not
> > belong here. The fact that some other framework already managed to
> > slip their helpers in does not justify others to do the same.
> 
> so? The firmware guys decided to put MAC addresses and BD addresses into the
> firmware. So you have to deal with that.

I think you have misunderstood the point.

> Moving this into the Bluetooth subsystem is as pointless. I rather keep the
> accessor function to firmware specific data in one place and not spread around
> the whole tree. Especially once this is also provided via ACPI or some other
> means. I assumed that is what the whole device_get part was suppose to
> abstract.

Unified device property API defines a _generic_ API that can be used
by any type of device to access the device properties regardless of
the way the hardware is described.

Any device can use device_property_read_u8/u16/u32/u64/string()
functions, but only bluetooth devices can use device_get_bd_address().
Therefore that function does not belong to drivers/base/properties.c.


Thanks,

-- 
heikki

  reply	other threads:[~2018-09-27 11:41 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-25 19:10 [PATCH v3.1 0/2] Add API to retrieve the Bluetooth Device Address (BD_ADDR) Matthias Kaehlcke
2018-09-25 19:10 ` [PATCH v3.1 1/2] device property: Add device_get_bd_address() and fwnode_get_bd_address() Matthias Kaehlcke
2018-09-25 21:33   ` Sakari Ailus
2018-09-25 23:50     ` Matthias Kaehlcke
2018-09-26 11:36   ` Heikki Krogerus
2018-09-26 17:12     ` Andy Shevchenko
2018-09-26 21:03     ` Matthias Kaehlcke
2018-09-27 10:24     ` Marcel Holtmann
2018-09-27 11:38       ` Heikki Krogerus [this message]
2018-09-27 13:15         ` Sakari Ailus
2018-09-27 17:04         ` Matthias Kaehlcke
2018-09-25 19:10 ` [PATCH v3.1 2/2] Bluetooth: btqcomsmd: Get the BD address with device_get_bd_address() Matthias Kaehlcke
2018-09-25 21:34   ` Sakari Ailus

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