linux-kernel - Re: [PATCH] pinctrl: dra: dt-bindings: Fix pull enable/disable

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 22 Jul 2014 11:47:52 -0500
From:	Felipe Balbi <balbi@...com>
To:	Nishanth Menon <nm@...com>
CC:	Tony Lindgren <tony@...mide.com>, Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Benoit Cousson <bcousson@...libre.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <balbi@...com>
Subject: Re: [PATCH] pinctrl: dra: dt-bindings: Fix pull enable/disable

On Tue, Jul 22, 2014 at 10:39:54AM -0500, Nishanth Menon wrote:
> The DRA74/72 control module pins have a weak pull up and pull down.
> This is configured by bit offset 17. if BIT(17) is 1, a pull up is
> selected, else a pull down is selected.
> 
> However, this pull resisstor is applied based on BIT(16) -
> PULLUDENABLE - if BIT(18) is *0*, then pull as defined in BIT(17) is
> applied, else no weak pulls are applied. We defined this in reverse.
> 
> Reference: Table 18-5 (Description of the pad configuration register
> bits) in Technical Reference Manual Revision (DRA74x revision Q:
> SPRUHI2Q Revised June 2014 and DRA72x revision F: SPRUHP2F - Revised
> June 2014)
> 
> Fixes: 6e58b8f1daaf1a ("ARM: dts: DRA7: Add the dts files for dra7 SoC and dra7-evm board")
> Signed-off-by: Nishanth Menon <nm@...com>
> ---

Tested on an upcoming board.

Tested-by: Felipe Balbi <balbi@...com>
Acked-by: Felipe Balbi <balbi@...com>


-- 
balbi

Download attachment "signature.asc" of type "application/pgp-signature" (820 bytes)