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From: Tomasz Figa <tomasz.figa-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Cc: Matt Porter <matt.porter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>,
	Greg Kroah-Hartman
	<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>,
	Kishon Vijay Abraham I <kishon-l0cyMroinI0@public.gmane.org>,
	Rob Herring <rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
	Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>,
	Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>,
	Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	Ian Campbell
	<ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>,
	Christian Daudt <bcm-xK7y4jjYLqYh9ZMKESR00Q@public.gmane.org>,
	Paul Zimmerman <paulz-HKixBCOQz3hWk0Htik3J/w@public.gmane.org>,
	Devicetree List
	<devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linux USB List
	<linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linux Kernel Mailing List
	<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Linaro Patches <patches-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCH v2 1/9] phy: add phy_get_bus_width()/phy_set_bus_width() calls
Date: Sat, 02 Nov 2013 14:14:59 +0100	[thread overview]
Message-ID: <2395941.Lp2U7sdS37@flatron> (raw)
In-Reply-To: <1383335158-19730-2-git-send-email-matt.porter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>

Hi Matt,

On Friday 01 of November 2013 15:45:50 Matt Porter wrote:
> This adds a pair of APIs that allows the generic PHY subsystem to
> provide information on the PHY bus width. The PHY provider driver may
> use phy_set_bus_width() to set the bus width that the PHY supports.
> The controller driver may then use phy_get_bus_width() to fetch the
> PHY bus width in order to properly configure the controller.

I somehow does not like this. If we take this path for any further 
properties that we may need, we will end up with a lot of consumer 
specific properties stored in a PHY object having their own accessor 
functions.

Since this is just an integration detail, what about simply adding this as 
a property in device tree node of the OTG controller (and pdata if 
considering non-DT support)?

Another option would be some framework for retrieving arbitrary properties 
from the PHY, but I'm not really sure there is a need for such.

Best regards,
Tomasz

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  parent reply	other threads:[~2013-11-02 13:14 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-01 19:45 [PATCH v2 0/9] USB Device Controller support for BCM281xx Matt Porter
2013-11-01 19:45 ` [PATCH v2 1/9] phy: add phy_get_bus_width()/phy_set_bus_width() calls Matt Porter
     [not found]   ` <1383335158-19730-2-git-send-email-matt.porter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2013-11-02 13:14     ` Tomasz Figa [this message]
2013-11-02 17:16       ` Kishon Vijay Abraham I
     [not found]         ` <52753387.5030202-l0cyMroinI0@public.gmane.org>
2013-11-02 17:47           ` Matt Porter
2013-11-02 17:58             ` Tomasz Figa
2013-11-04  6:04               ` Kishon Vijay Abraham I
2013-11-01 19:45 ` [PATCH v2 2/9] staging: dwc2: update DT binding to add generic clock/phy properties Matt Porter
2013-11-01 19:45 ` [PATCH v2 3/9] usb: gadget: s3c-hsotg: enable build for other platforms Matt Porter
2013-11-01 19:45 ` [PATCH v2 4/9] usb: gadget: s3c-hsotg: add snps,dwc2 compatible string Matt Porter
2013-11-01 19:45 ` [PATCH v2 5/9] usb: gadget: s3c-hsotg: enable generic phy support Matt Porter
     [not found]   ` <1383335158-19730-6-git-send-email-matt.porter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2013-11-02 13:09     ` Tomasz Figa
2013-11-02 17:52       ` Matt Porter
2013-11-01 19:45 ` [PATCH v2 6/9] usb: gadget: s3c-hsotg: get phy bus width from phy subsystem Matt Porter
     [not found] ` <1383335158-19730-1-git-send-email-matt.porter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2013-11-01 19:45   ` [PATCH v2 7/9] phy: add Broadcom Kona USB2 PHY DT binding Matt Porter
2013-11-01 20:54     ` Arend van Spriel
     [not found]       ` <527414F2.7090402-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2013-11-01 22:56         ` Matt Porter
2013-11-01 19:45 ` [PATCH v2 8/9] phy: add Broadcom Kona USB2 PHY driver Matt Porter
2013-11-04  6:27   ` Kishon Vijay Abraham I
2013-11-25 14:16     ` Matt Porter
2013-11-01 19:45 ` [PATCH v2 9/9] ARM: dts: add usb udc support to bcm281xx Matt Porter
     [not found]   ` <1383335158-19730-10-git-send-email-matt.porter-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
2013-11-01 20:56     ` Sergei Shtylyov
2013-11-01 22:52       ` Matt Porter

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