From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Mugunthan V N <mugunthanvnm-l0cyMroinI0@public.gmane.org>
Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sekhar Nori <nsekhar-l0cyMroinI0@public.gmane.org>
Subject: Re: [PATCH 0/3] Fix mmc/sd card detect gpio dt definition
Date: Mon, 12 Oct 2015 16:48:31 -0700 [thread overview]
Message-ID: <20151012234831.GT23801@atomide.com> (raw)
In-Reply-To: <1444640832-7396-1-git-send-email-mugunthanvnm-l0cyMroinI0@public.gmane.org>
* Mugunthan V N <mugunthanvnm-l0cyMroinI0@public.gmane.org> [151012 02:12]:
> The mmc/sd card detect gpio definition in DT is not defined as
> per hardware design, the card detect gpio is an active low
> signal.
>
> As per MMC/SD device tree binding documentation, the card detect
> signal should be an active low signal and when ever a hardware is
> designed with an active high card detect gpio then "cd-inverted"
> dt parameter should be used to detect the actual status for the
> card.
>
> This was not captured till now because gpio is used as interrupt
> source and mmc_rescan task is scheduled. The value of the gpio
> is not used to determine card presence.
OK applying into omap-for-v4.4/dt thanks.
Tony
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prev parent reply other threads:[~2015-10-12 23:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-12 9:07 [PATCH 0/3] Fix mmc/sd card detect gpio dt definition Mugunthan V N
[not found] ` <1444640832-7396-1-git-send-email-mugunthanvnm-l0cyMroinI0@public.gmane.org>
2015-10-12 9:07 ` [PATCH 1/3] ARM: DTS: am335x: fix cd-gpios definition as per hardware design and dt binding docs Mugunthan V N
2015-10-12 9:07 ` [PATCH 2/3] ARM: DTS: am43xx: " Mugunthan V N
2015-10-12 9:07 ` [PATCH 3/3] ARM: DTS: dra7xx: am57xx: " Mugunthan V N
2015-10-12 23:48 ` Tony Lindgren [this message]
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