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From: thierry.reding@gmail.com (Thierry Reding)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/4] pinctrl: Add NVIDIA Tegra XUSB pad controller support
Date: Tue, 17 Jun 2014 14:09:00 +0200	[thread overview]
Message-ID: <20140617120859.GC18816@ulmo> (raw)
In-Reply-To: <53A02479.8080405@nvidia.com>

On Tue, Jun 17, 2014 at 02:20:25PM +0300, Mikko Perttunen wrote:
> This v3 breaks SATA; see below
> 
> On 16/06/14 17:57, Thierry Reding wrote:
> ...
> >+                       regval = padctl_readl(padctl, lane->offset);
> >+
> >+                       if (!value)
> >+                               regval &= ~lane->iddq;
> >+                       else
> >+                               regval |= lane->iddq;
> >+
> >+                       padctl_writel(padctl, regval, lane->offset);
> ...
> 
> The bits at at lane->iddq are actually IDDQ_DISABLE bits, so this is the
> wrong way around: having iddq = <0> in device tree leads to the device
> turning off. So either the DT property should be renamed or the branches of
> the if here should be switched around.

Indeed, s/!value/value/ in the above fixes this. I've sent a v4 with
that fix and changes to address Stephen's comments regarding the
#address-cells and #size-cells properties.

Thanks,
Thierry
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  reply	other threads:[~2014-06-17 12:09 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-16 14:57 [PATCH v3 1/4] of: Add NVIDIA Tegra XUSB pad controller binding Thierry Reding
2014-06-16 14:57 ` [PATCH v3 2/4] pinctrl: Add NVIDIA Tegra XUSB pad controller support Thierry Reding
2014-06-17 11:20   ` Mikko Perttunen
2014-06-17 12:09     ` Thierry Reding [this message]
2014-06-16 14:57 ` [PATCH v3 3/4] ARM: tegra: tegra124: Add XUSB pad controller Thierry Reding
2014-06-16 14:57 ` [PATCH v3 4/4] ARM: tegra: jetson-tk1: " Thierry Reding
2014-06-16 21:39   ` Stephen Warren
2014-06-16 21:35 ` [PATCH v3 1/4] of: Add NVIDIA Tegra XUSB pad controller binding Stephen Warren
2014-06-17 12:09   ` Thierry Reding

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