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From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/9] ARM: Kirkwood: Convert to pinctrl
Date: Thu, 25 Oct 2012 09:43:43 +0200	[thread overview]
Message-ID: <20121025094343.58015440@skate> (raw)
In-Reply-To: <77006526a6de40ddb455b25787b08342.squirrel@ssl.serverraum.org>

Dear Michael Walle,

On Thu, 25 Oct 2012 09:39:13 +0200, Michael Walle wrote:

> LSXL_GPIO_USB_POWER and LSXL_GPIO_HDD_POWER switches the power on the USB
> and SATA connector. So they are not needed to be set before the driver
> probes, at least in my case here.

Ok.

> But i can imagine boards where you have to enable some kind of
> buffer/muxer/etc which are controlled by GPIO pins. And I don't think that
> should be part of the actual driver, because that would be highly board
> dependant.

You'd have to provide a more specific example so I can imagine how it
will be solved. But for example, if you have a GPIO-controlled muxer
for an I2C bus, then the I2C devices behind the muxer are described as
sub-devices of the muxer, so the probing order is correct.

Of course, I'm not pretending I have ready-to-use solutions for all
situations, but I think we can solve this problem on a case-by-case
basis.

Regardless of those GPIOs, did you solve the hang that happened even
when you removed the gpio_set_value() calls? Or is it still a problem
currently?

Best regards,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

  reply	other threads:[~2012-10-25  7:43 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-24 14:53 [PATCH 0/9] ARM: Kirkwood: Convert to pinctrl Andrew Lunn
2012-10-24 14:53 ` [PATCH 1/9] ARM: Kirkwood: Convert TS219 " Andrew Lunn
2012-10-24 19:31   ` Thomas Petazzoni
2012-10-24 19:49     ` Sebastian Hesselbarth
2012-10-24 20:00       ` Thomas Petazzoni
2012-10-24 20:04         ` Andrew Lunn
2012-10-24 20:05           ` Thomas Petazzoni
2012-10-24 20:14         ` Sebastian Hesselbarth
2012-10-24 20:19           ` Thomas Petazzoni
2012-10-24 14:53 ` [PATCH 2/9] ARM: Kirkwood: Convert iConnect " Andrew Lunn
2012-10-24 14:53 ` [PATCH 3/9] ARM: Kirkwood: Convert dnskw " Andrew Lunn
2012-10-25 22:58   ` Jamie Lentin
2012-10-26  6:01     ` Andrew Lunn
2012-10-26  9:42       ` Jamie Lentin
2012-10-26 10:24         ` Andrew Lunn
2012-10-26 12:30           ` Jamie Lentin
2012-10-24 14:53 ` [PATCH 4/9] ARM: Kirkwood: Convert dockstar " Andrew Lunn
2012-10-24 14:53 ` [PATCH 5/9] ARM: Kirkwood: Convert dreamplug " Andrew Lunn
2012-10-24 14:53 ` [PATCH 6/9] ARM: Kirkwood: Convert GoFlex Net " Andrew Lunn
2012-10-26 17:28   ` Josh Coombs
2012-10-27  8:51     ` Andrew Lunn
2012-10-28 14:31   ` Josh Coombs
2012-10-24 14:53 ` [PATCH 7/9] ARM: Kirkwood: Convert ib62x0 " Andrew Lunn
2012-10-24 20:40   ` Simon Baatz
2012-10-24 14:53 ` [PATCH 8/9] ARM: Kirkwood: Convert lsxl boards " Andrew Lunn
2012-10-24 20:37   ` Michael Walle
2012-10-28 16:40   ` Michael Walle
2012-10-24 14:53 ` [PATCH 9/9] ARM: Kirkwood: Convert IX2-200 " Andrew Lunn
2012-10-24 20:04   ` Thomas Petazzoni
2012-10-24 20:20     ` Andrew Lunn
2012-10-24 20:29       ` Thomas Petazzoni
2012-10-24 15:29 ` [PATCH 0/9] ARM: Kirkwood: Convert " Josh Coombs
2012-10-24 15:35   ` Andrew Lunn
2012-10-24 19:26     ` Thomas Petazzoni
2012-10-24 18:06 ` Michael Walle
2012-10-24 20:01   ` Andrew Lunn
2012-10-24 20:47     ` Michael Walle
2012-10-24 21:33     ` Thomas Petazzoni
2012-10-25  5:46       ` Andrew Lunn
2012-10-25  6:28         ` Thomas Petazzoni
2012-10-25  7:39           ` Michael Walle
2012-10-25  7:43             ` Thomas Petazzoni [this message]
2012-10-25 20:19               ` Michael Walle
2012-10-26 18:06               ` Michael Walle
2012-10-26 18:45                 ` Thomas Petazzoni
2012-10-26 20:17                   ` Michael Walle
2012-10-27  8:59                     ` Andrew Lunn
2012-10-25 22:57           ` Jamie Lentin
2012-10-28 16:57 ` Andrew Lunn
2012-10-28 18:17   ` Michael Walle
2012-10-28 19:50   ` Simon Baatz
2012-10-28 20:01     ` Andrew Lunn
2012-10-28 21:06   ` Jamie Lentin
2012-10-31 22:38   ` Josh Coombs
2012-11-07 16:13   ` [RFC PATCH 0/2] Kirkwood 98dx4122 pinctrl variant Valentin Longchamp
2012-11-07 17:36     ` Andrew Lunn
2012-11-07 16:13   ` [PATCH 1/2] ARM: support 98DX412x kirkwoods with pinctrl Valentin Longchamp
2012-11-07 16:13   ` [PATCH 2/2] ARM: convert the km_kirkwood board to pinctrl Valentin Longchamp

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