linux-kernel - RE: [PATCH] spi: omap2-mcspi: In case of dma errors fall back to pio

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] [day] [month] [year] [list]

Date:	Wed, 8 Aug 2012 14:39:11 +0000
From:	"Philip, Avinash" <avinashphilip@...com>
To:	"Datta, Shubhrajyoti" <shubhrajyoti@...com>,
	"spi-devel-general@...ts.sourceforge.net" 
	<spi-devel-general@...ts.sourceforge.net>
CC:	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] spi: omap2-mcspi: In case of dma errors fall back to pio

On Wed, Jul 25, 2012 at 11:50:29, Datta, Shubhrajyoti wrote:
> In case there are dma errors currently the driver exits.
> Make the spi driver fall back to pio mode in case of dma errors.
> 
> If the DMA engine is not selected the driver
> exits.This patch makes the spi fall back to pio in that case.
> 
> Also adds a field dma_unusable to struct omap2_mcspi.
>  
> Signed-off-by: Shubhrajyoti D <shubhrajyoti@...com>

I have tested this patch for SPI PIO mode on AM335x EVM.

Acked-by: Philip, Avinash <avinashphilip@...com>

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/