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From: marex@denx.de (Marek Vasut)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 02/12] usb: chipidea: permit driver bindings pass phy pointer
Date: Tue, 22 May 2012 16:07:31 +0200	[thread overview]
Message-ID: <201205221607.31624.marex@denx.de> (raw)
In-Reply-To: <87ehqcbko0.fsf@ashishki-desk.ger.corp.intel.com>

Dear Alexander Shishkin,

> Richard Zhao <richard.zhao@freescale.com> writes:
> 
> Hi,
> 
> > Sometimes, the driver bindings may know what phy they use.
> > For example, when using device tree, the usb controller may have a
> > phandler pointing to usb phy.
> 
> Some comments below:
> 
> [snip]
> 
> >  	ci->dev = dev;
> >  	ci->udc_driver = dev->platform_data;
> > 
> > +	if (ci->udc_driver->phy)
> > +		ci->transceiver = ci->udc_driver->phy;
> > +	else
> > +		ci->global_phy = 1;
> 
> Nitpick: since it's a bool, don't you want to use "true" instead?
> 
> [snip]
> 
> > +#include <linux/usb/otg.h>
> > +
> > 
> >  struct ci13xxx;
> >  struct ci13xxx_udc_driver {
> >  
> >  	const char	*name;
> >  	/* offset of the capability registers */
> >  	uintptr_t	 capoffset;
> >  	unsigned	 power_budget;
> > 
> > +	struct usb_phy	*phy;
> 
> This structure is really platform information, not per-device
> instance. Consider, for example, situation when you have 2 controllers
> in one system, they'll be using the same platform structure, but they'll
> have different phys. Right?

Not really, won't you allocate separate structure for them?

> 
> Regards,
> --
> Alex

Best regards,
Marek Vasut

WARNING: multiple messages have this Message-ID (diff)
From: Marek Vasut <marex-ynQEQJNshbs@public.gmane.org>
To: Alexander Shishkin
	<alexander.shishkin-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Richard Zhao
	<richard.zhao-KZfg59tc24xl57MIdRCFDg@public.gmane.org>,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
	devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
	B29397-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
	B20596-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
	shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
	gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
	fabio.estevam-KZfg59tc24xl57MIdRCFDg@public.gmane.org,
	dong.aisheng-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public.gmane.org,
	linuxzsc-MeMPY/F8WlbQT0dZR+AlfA@public.gmane.org
Subject: Re: [PATCH v2 02/12] usb: chipidea: permit driver bindings pass phy pointer
Date: Tue, 22 May 2012 16:07:31 +0200	[thread overview]
Message-ID: <201205221607.31624.marex@denx.de> (raw)
In-Reply-To: <87ehqcbko0.fsf-qxRn5AmX6ZD9BXuAQUXR0fooFf0ArEBIu+b9c/7xato@public.gmane.org>

Dear Alexander Shishkin,

> Richard Zhao <richard.zhao-KZfg59tc24xl57MIdRCFDg@public.gmane.org> writes:
> 
> Hi,
> 
> > Sometimes, the driver bindings may know what phy they use.
> > For example, when using device tree, the usb controller may have a
> > phandler pointing to usb phy.
> 
> Some comments below:
> 
> [snip]
> 
> >  	ci->dev = dev;
> >  	ci->udc_driver = dev->platform_data;
> > 
> > +	if (ci->udc_driver->phy)
> > +		ci->transceiver = ci->udc_driver->phy;
> > +	else
> > +		ci->global_phy = 1;
> 
> Nitpick: since it's a bool, don't you want to use "true" instead?
> 
> [snip]
> 
> > +#include <linux/usb/otg.h>
> > +
> > 
> >  struct ci13xxx;
> >  struct ci13xxx_udc_driver {
> >  
> >  	const char	*name;
> >  	/* offset of the capability registers */
> >  	uintptr_t	 capoffset;
> >  	unsigned	 power_budget;
> > 
> > +	struct usb_phy	*phy;
> 
> This structure is really platform information, not per-device
> instance. Consider, for example, situation when you have 2 controllers
> in one system, they'll be using the same platform structure, but they'll
> have different phys. Right?

Not really, won't you allocate separate structure for them?

> 
> Regards,
> --
> Alex

Best regards,
Marek Vasut
--
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  reply	other threads:[~2012-05-22 14:07 UTC|newest]

Thread overview: 182+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-21  9:23 [PATCH v2 00/12] add imx usb driver for mx28/6x Richard Zhao
2012-05-21  9:23 ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 01/12] usb: otg: add notify_connect_change callback Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-21  9:26   ` Felipe Balbi
2012-05-21  9:26     ` Felipe Balbi
2012-05-21  9:36     ` Richard Zhao
2012-05-21  9:36       ` Richard Zhao
2012-05-21  9:38       ` Felipe Balbi
2012-05-21  9:38         ` Felipe Balbi
2012-05-21 10:19         ` Richard Zhao
2012-05-21 10:19           ` Richard Zhao
2012-05-21 13:03         ` Greg KH
2012-05-21 13:03           ` Greg KH
2012-05-21 13:05   ` Greg KH
2012-05-21 13:05     ` Greg KH
2012-05-21 17:36     ` Marek Vasut
2012-05-21 17:36       ` Marek Vasut
2012-05-21 17:47       ` Greg KH
2012-05-21 17:47         ` Greg KH
2012-05-21 18:32         ` Marek Vasut
2012-05-21 18:32           ` Marek Vasut
2012-05-21 18:40           ` Greg KH
2012-05-21 18:40             ` Greg KH
2012-05-21 19:27             ` Marek Vasut
2012-05-21 19:27               ` Marek Vasut
2012-05-22  0:27               ` Richard Zhao
2012-05-22  0:27                 ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 02/12] usb: chipidea: permit driver bindings pass phy pointer Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:22   ` Marek Vasut
2012-05-22  4:22     ` Marek Vasut
2012-05-22  9:59   ` Alexander Shishkin
2012-05-22  9:59     ` Alexander Shishkin
2012-05-22 14:07     ` Marek Vasut [this message]
2012-05-22 14:07       ` Marek Vasut
2012-05-22 15:14       ` Richard Zhao
2012-05-22 15:14         ` Richard Zhao
2012-05-23  1:35         ` Chen Peter-B29397
2012-05-23  1:35           ` Chen Peter-B29397
2012-05-23  8:08       ` Alexander Shishkin
2012-05-23  8:08         ` Alexander Shishkin
2012-05-21  9:23 ` [PATCH v2 03/12] usb: ehci-hcd: notify phy when connect change Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:23   ` Marek Vasut
2012-05-22  4:23     ` Marek Vasut
2012-05-22  4:36     ` Richard Zhao
2012-05-22  4:36       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 04/12] usb: otg: add basic mxs phy driver support Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 05/12] usb: chipidea: add imx driver binding Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:30   ` Marek Vasut
2012-05-22  4:30     ` Marek Vasut
2012-05-22  4:51     ` Richard Zhao
2012-05-22  4:51       ` Richard Zhao
2012-05-22  9:56       ` Alexander Shishkin
2012-05-22  9:56         ` Alexander Shishkin
2012-05-22 10:06         ` Felipe Balbi
2012-05-22 10:06           ` Felipe Balbi
2012-05-22 10:31           ` Richard Zhao
2012-05-22 10:31             ` Richard Zhao
2012-05-22 10:35             ` Felipe Balbi
2012-05-22 10:35               ` Felipe Balbi
2012-05-22 10:41               ` Alexander Shishkin
2012-05-22 10:41                 ` Alexander Shishkin
2012-05-22 15:06                 ` Richard Zhao
2012-05-22 15:06                   ` Richard Zhao
2012-05-23 13:02                   ` Alexander Shishkin
2012-05-23 13:02                     ` Alexander Shishkin
2012-05-23 13:09                     ` Felipe Balbi
2012-05-23 13:09                       ` Felipe Balbi
2012-05-23 13:13                       ` Alexander Shishkin
2012-05-23 13:13                         ` Alexander Shishkin
2012-05-22 13:52               ` Shawn Guo
2012-05-22 13:52                 ` Shawn Guo
2012-05-22 13:55                 ` Felipe Balbi
2012-05-22 13:55                   ` Felipe Balbi
2012-05-22 10:21   ` Alexander Shishkin
2012-05-22 10:21     ` Alexander Shishkin
2012-05-22 10:24     ` Alexander Shishkin
2012-05-22 10:24       ` Alexander Shishkin
2012-05-22 15:30       ` Richard Zhao
2012-05-22 15:30         ` Richard Zhao
2012-05-22 15:28     ` Richard Zhao
2012-05-22 15:28       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 06/12] ARM: imx6q: correct device name of usbphy and usb controller clock export Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:31   ` Marek Vasut
2012-05-22  4:31     ` Marek Vasut
2012-05-22  4:56     ` Richard Zhao
2012-05-22  4:56       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 07/12] ARM: imx6q: add config-on-boot gpios Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  3:17   ` Shawn Guo
2012-05-22  3:17     ` Shawn Guo
2012-05-22  3:25     ` Marek Vasut
2012-05-22  3:25       ` Marek Vasut
2012-05-22  3:32       ` Shawn Guo
2012-05-22  3:32         ` Shawn Guo
2012-05-22  4:20         ` Marek Vasut
2012-05-22  4:20           ` Marek Vasut
2012-05-22  4:42           ` Shawn Guo
2012-05-22  4:42             ` Shawn Guo
2012-05-22  5:22             ` Marek Vasut
2012-05-22  5:22               ` Marek Vasut
2012-05-22  5:25               ` Shawn Guo
2012-05-22  5:25                 ` Shawn Guo
2012-05-22  5:27                 ` Marek Vasut
2012-05-22  5:27                   ` Marek Vasut
2012-05-22  6:07                   ` Richard Zhao
2012-05-22  6:07                     ` Richard Zhao
2012-05-22  3:38     ` Richard Zhao
2012-05-22  3:38       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 08/12] ARM: imx6q: add usbphy clocks Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:32   ` Marek Vasut
2012-05-22  4:32     ` Marek Vasut
2012-05-22  4:45     ` Shawn Guo
2012-05-22  4:45       ` Shawn Guo
2012-05-22  5:22       ` Marek Vasut
2012-05-22  5:22         ` Marek Vasut
2012-05-22  4:59     ` Richard Zhao
2012-05-22  4:59       ` Richard Zhao
2012-05-22  5:37   ` Shawn Guo
2012-05-22  5:37     ` Shawn Guo
2012-05-22  6:08     ` Richard Zhao
2012-05-22  6:08       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 09/12] ARM: imx6q: disable usb charger detector Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  3:48   ` Shawn Guo
2012-05-22  3:48     ` Shawn Guo
2012-05-22  4:32     ` Richard Zhao
2012-05-22  4:32       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 10/12] ARM: dts: imx6q-sabrelite: add usb devices Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  5:10   ` Shawn Guo
2012-05-22  5:10     ` Shawn Guo
2012-05-22  5:59     ` Richard Zhao
2012-05-22  5:59       ` Richard Zhao
2012-05-22  6:08       ` Shawn Guo
2012-05-22  6:08         ` Shawn Guo
2012-05-22  6:19         ` Richard Zhao
2012-05-22  6:19           ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 11/12] ARM: mxs: clk_register_clkdev mx28 usb clocks Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:48   ` Shawn Guo
2012-05-22  4:48     ` Shawn Guo
2012-05-22  5:01     ` Richard Zhao
2012-05-22  5:01       ` Richard Zhao
2012-05-21  9:23 ` [PATCH v2 12/12] ARM: dts: imx28-evk: add usb devices Richard Zhao
2012-05-21  9:23   ` Richard Zhao
2012-05-22  4:52   ` Shawn Guo
2012-05-22  4:52     ` Shawn Guo
2012-05-22  5:03     ` Richard Zhao
2012-05-22  5:03       ` Richard Zhao
2012-05-22  5:24       ` Marek Vasut
2012-05-22  5:24         ` Marek Vasut
2012-05-21 19:34 ` [PATCH v2 00/12] add imx usb driver for mx28/6x Fabio Estevam
2012-05-21 19:34   ` Fabio Estevam
2012-05-21 19:41   ` Marek Vasut
2012-05-21 19:41     ` Marek Vasut
2012-05-21 19:47     ` Subodh Nijsure
2012-05-21 19:47       ` Subodh Nijsure
2012-05-21 20:07       ` Marek Vasut
2012-05-21 20:07         ` Marek Vasut
2012-05-22  1:38         ` Chen Peter-B29397
2012-05-22  1:38           ` Chen Peter-B29397
2012-05-22  1:41           ` Richard Zhao
2012-05-22  1:41             ` Richard Zhao
2012-05-22  1:44             ` Chen Peter-B29397
2012-05-22  1:44               ` Chen Peter-B29397
2012-05-22  1:51               ` Richard Zhao
2012-05-22  1:51                 ` Richard Zhao
2012-05-22  2:00               ` Shawn Guo
2012-05-22  2:00                 ` Shawn Guo
2012-05-22  5:08   ` Richard Zhao
2012-05-22  5:08     ` Richard Zhao
2012-05-22 13:13     ` Dirk Behme
2012-05-22 13:13       ` Dirk Behme
2012-05-24  3:38     ` Richard Zhao
2012-05-24  3:38       ` Richard Zhao

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