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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Mark Brown <broonie@kernel.org>,
	linux-spi@vger.kernel.org, linux-sh@vger.kernel.org
Subject: Re: [PATCH 2/2] spi: sh-msiof: Fix transmit-only DMA transfers
Date: Thu, 07 Aug 2014 14:51:54 +0200	[thread overview]
Message-ID: <1519133.I1M5gTHUZc@avalon> (raw)
In-Reply-To: <1407413263-20177-2-git-send-email-geert+renesas@glider.be>

Hi Geert,

On Thursday 07 August 2014 14:07:43 Geert Uytterhoeven wrote:
> Fix tx/rx mixup, which broke transmit-only transfers.
> 
> Introduced by commit 4240305f7cbdc7782aa8bc40cc702775d9ac0839
> ("spi: sh-msiof: Fix leaking of unused DMA descriptors").
> 
> Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
> Feel free to fold into commit 4240305f7cbdc7782aa8bc40cc702775d9ac0839
> ("spi: sh-msiof: Fix leaking of unused DMA descriptors")
> ---
>  drivers/spi/spi-sh-msiof.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c
> index 0d9ccd0953de..5ee13a2d93df 100644
> --- a/drivers/spi/spi-sh-msiof.c
> +++ b/drivers/spi/spi-sh-msiof.c
> @@ -689,9 +689,9 @@ static int sh_msiof_dma_once(struct sh_msiof_spi_priv
> *p, const void *tx, reinit_completion(&p->done);
> 
>  	/* Now start DMA */
> -	if (tx)
> -		dma_async_issue_pending(p->master->dma_rx);
>  	if (rx)
> +		dma_async_issue_pending(p->master->dma_rx);
> +	if (tx)
>  		dma_async_issue_pending(p->master->dma_tx);
> 
>  	ret = sh_msiof_spi_start(p, rx);

-- 
Regards,

Laurent Pinchart


  reply	other threads:[~2014-08-07 12:51 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-06 12:58 [PATCH 00/12] spi: rspi and sh-msiof driver updates Geert Uytterhoeven
2014-08-06 12:58 ` [PATCH 01/12] spi: rspi: Fix leaking of unused DMA descriptors Geert Uytterhoeven
2014-08-06 20:11   ` Mark Brown
2014-08-06 12:58 ` [PATCH 02/12] spi: rspi: Remove unneeded semicolon Geert Uytterhoeven
2014-08-06 20:26   ` Mark Brown
     [not found] ` <1407329949-5695-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2014-08-06 12:59   ` [PATCH 03/12] spi: rspi: Use devm_kasprintf() Geert Uytterhoeven
     [not found]     ` <1407329949-5695-4-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2014-08-06 20:26       ` Mark Brown
2014-08-06 12:59   ` [PATCH 04/12] spi: rspi: Configure DMA slave bus width to 8 bit Geert Uytterhoeven
2014-08-06 20:26     ` Mark Brown
2014-08-06 12:59   ` [PATCH 05/12] [v2] spi: rspi: Add DT support to DMA setup Geert Uytterhoeven
2014-08-06 20:28     ` Mark Brown
2014-08-06 12:59   ` [PATCH 09/12] [v3] ARM: shmobile: r8a7791 dtsi: Enable DMA for QSPI Geert Uytterhoeven
2014-08-07  0:37     ` Simon Horman
2014-08-07  0:39       ` Simon Horman
2014-08-07  0:41         ` Simon Horman
     [not found]           ` <20140807004107.GB30872-/R6kz+dDXgpPR4JQBCEnsQ@public.gmane.org>
2014-08-07  8:27             ` Geert Uytterhoeven
2014-08-08  1:38               ` Simon Horman
2014-08-06 12:59   ` [PATCH 10/12] [v3] ARM: shmobile: r8a7791 dtsi: Enable DMA for MSIOF Geert Uytterhoeven
2014-08-06 12:59   ` [PATCH 12/12] ARM: shmobile: r8a7790 " Geert Uytterhoeven
2014-08-07  0:16   ` [PATCH 00/12] spi: rspi and sh-msiof driver updates Laurent Pinchart
2014-08-06 12:59 ` [PATCH 06/12] spi: sh-msiof: Fix leaking of unused DMA descriptors Geert Uytterhoeven
2014-08-06 20:35   ` Mark Brown
2014-08-07  0:07   ` Laurent Pinchart
2014-08-07  8:55     ` Geert Uytterhoeven
     [not found]       ` <CAMuHMdUd3OKqDwhLSCMW-rEQSnWky+saN5TgC005rkmNPfEL+g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-08-07 12:07         ` [PATCH 1/2] spi: sh-msiof: Return early in sh_msiof_dma_once() where possible Geert Uytterhoeven
     [not found]           ` <1407413263-20177-1-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2014-08-07 12:07             ` [PATCH 2/2] spi: sh-msiof: Fix transmit-only DMA transfers Geert Uytterhoeven
2014-08-07 12:51               ` Laurent Pinchart [this message]
2014-08-07 12:52           ` [PATCH 1/2] spi: sh-msiof: Return early in sh_msiof_dma_once() where possible Laurent Pinchart
2014-08-07 17:41           ` Mark Brown
2014-08-06 12:59 ` [PATCH 07/12] spi: sh-msiof: Configure DMA slave bus width Geert Uytterhoeven
     [not found]   ` <1407329949-5695-8-git-send-email-geert+renesas-gXvu3+zWzMSzQB+pC5nmwQ@public.gmane.org>
2014-08-06 20:36     ` Mark Brown
2014-08-06 12:59 ` [PATCH 08/12] [v2] spi: sh-msiof: Add DT support to DMA setup Geert Uytterhoeven
2014-08-06 20:36   ` Mark Brown
2014-08-06 12:59 ` [PATCH 11/12] ARM: shmobile: r8a7790 dtsi: Enable DMA for QSPI Geert Uytterhoeven
2014-08-06 20:29 ` [PATCH 00/12] spi: rspi and sh-msiof driver updates Mark Brown

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