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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: George Cherian <george.cherian@ti.com>
Cc: linux-usb@vger.kernel.org, balbi@ti.com,
	linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org,
	linux-omap@vger.kernel.org, kishon@ti.com
Subject: Re: [PATCH v2 2/4] phy: phy-amxxxx-usb: Add PHY driver for amxxxx platform
Date: Mon, 29 Jul 2013 17:17:54 +0200	[thread overview]
Message-ID: <20130729151754.GB827@linutronix.de> (raw)
In-Reply-To: <1374237277-17769-3-git-send-email-george.cherian@ti.com>

* George Cherian | 2013-07-19 18:04:35 [+0530]:

>Adds phy driver support for am33xx platform, the host/device
>peripheral controller shall get this phy object to control the phy
>operations.

If you rebase this on-top of the two instances patches I've sent earlier
then you can bury patch 3 and 4, right?

I don't like very much the way you obtain the phy id:
>+		of_property_read_u32(np, "id", &phy->id);

with the .dts changes I made you should able to use
    of_alias_get_id()
instead.

Let me look what you have additionaly:
- usbotg_fck
  Is this really required? I have the phy as a child of the "main"
  device which has a hwmod property which is associated with this clock.
  So pm enable/ disable should also enable this clock if possible,
  right? 

- device wakeup via omap_control_am335x_phy_wkup()
  Now. that is one thing that the simple phy driver is missing. If you
  call a magic function for this to happen than I don't have to worry
  about the missing memory space for this function.

So from what I see now, it is most likely the easiest thing to just add
that wakeup to the phy driver I posted. Do you agree?
If so we need to figure out where the memory for the wakeup register is
comming from. We need also to ensure that both phys can not write at the
same time. A look would be nice.

>Signed-off-by: George Cherian <george.cherian@ti.com>

Sebastian

  parent reply	other threads:[~2013-07-29 15:17 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-07-19 12:34 [PATCH v2 0/4] Add phy support for AM335X platform using Generic PHy framework George Cherian
2013-07-19 12:34 ` [PATCH v2 1/4] usb: phy: phy-omap-control: Add API to power and wakeup George Cherian
2013-07-19 13:20   ` Kishon Vijay Abraham I
2013-07-29 14:25   ` Sebastian Andrzej Siewior
2013-07-30  4:53     ` George Cherian
2013-07-30  7:35       ` Sebastian Andrzej Siewior
2013-07-19 12:34 ` [PATCH v2 2/4] phy: phy-amxxxx-usb: Add PHY driver for amxxxx platform George Cherian
2013-07-19 13:32   ` Kishon Vijay Abraham I
2013-07-29 15:17   ` Sebastian Andrzej Siewior [this message]
2013-07-30  5:19     ` George Cherian
2013-07-30  8:53       ` Sebastian Andrzej Siewior
2013-07-30 14:24         ` George Cherian
2013-07-30 14:33           ` Felipe Balbi
2013-07-30 14:39             ` Sebastian Andrzej Siewior
2013-07-19 12:34 ` [PATCH v2 3/4] arm: dts: Add USB phy nodes for AM33XX George Cherian
2013-07-19 13:34   ` Kishon Vijay Abraham I
2013-07-19 13:56   ` Sergei Shtylyov
2013-07-19 14:20     ` Sebastian Andrzej Siewior
2013-07-19 18:33       ` Sergei Shtylyov
2013-07-19 18:42         ` Sebastian Andrzej Siewior
2013-07-20  3:41           ` George Cherian
2013-07-22  5:45             ` George Cherian
2013-07-20  3:36         ` George Cherian
2013-07-19 12:34 ` [PATCH v2 4/4] usb: musb: dsps: Remove the phy control from glue and add phy driver APIs George Cherian
2013-07-19 13:44   ` Kishon Vijay Abraham I
2013-07-19 13:17 ` [PATCH v2 0/4] Add phy support for AM335X platform using Generic PHy framework Kishon Vijay Abraham I
2013-08-10 11:59 ` Ezequiel Garcia
2013-08-14 10:36   ` Sebastian Andrzej Siewior

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