linux-kernel - Re: [PATCH] mmc: sdhci-tegra: convert to use GPIO descriptors

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Message-ID: <CAAVeFuKNB_W8du4Cxr3cTtFMGUBxp1m4bLmN0+DhNqvR+p47+w@mail.gmail.com>
Date:	Wed, 1 Apr 2015 19:43:34 +0900
From:	Alexandre Courbot <gnurou@...il.com>
To:	Mylene JOSSERAND <josserand.mylene@...il.com>
Cc:	Ulf Hansson <ulf.hansson@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: sdhci-tegra: convert to use GPIO descriptors

On Tue, Mar 31, 2015 at 6:39 AM, Mylene JOSSERAND
<josserand.mylene@...il.com> wrote:
> Modify the driver to handle GPIOs using the descriptor API.

Reviewed-by: Alexandre Courbot <acourbot@...dia.com>
Tested-by: Alexandre Courbot <acourbot@...dia.com>

Both the eMMC (not using power GPIO) and SD slot (using power GPIO) of
my Jetson are happy with this patch. While reviewing it I also noticed
that it improves error handling: any error returned by
of_get_named_gpio(), including -EPROBE_DEFER, were ignored and and
driver would successfully probe without powering the controller.
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