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From: Wolfram Sang <wsa@the-dreams.de>
To: qii.wang@mediatek.com
Cc: matthias.bgg@gmail.com, linux-i2c@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
	srv_heupstream@mediatek.com, leilk.liu@mediatek.com
Subject: Re: [PATCH] i2c: mediatek: move dma reset before i2c reset
Date: Tue, 3 Nov 2020 22:13:12 +0100	[thread overview]
Message-ID: <20201103211312.GG1583@kunai> (raw)
In-Reply-To: <1604059081-28197-1-git-send-email-qii.wang@mediatek.com>

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On Fri, Oct 30, 2020 at 07:58:01PM +0800, qii.wang@mediatek.com wrote:
> From: Qii Wang <qii.wang@mediatek.com>
> 
> The i2c driver default do dma reset after i2c reset, but sometimes
> i2c reset will trigger dma tx2rx, then apdma write data to dram
> which has been i2c_put_dma_safe_msg_buf(kfree). Move dma reset
> before i2c reset in mtk_i2c_init_hw to fix it.
> 
> Signed-off-by: Qii Wang <qii.wang@mediatek.com>

Applied to for-current, thanks!


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WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <wsa@the-dreams.de>
To: qii.wang@mediatek.com
Cc: srv_heupstream@mediatek.com, leilk.liu@mediatek.com,
	linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-i2c@vger.kernel.org, matthias.bgg@gmail.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] i2c: mediatek: move dma reset before i2c reset
Date: Tue, 3 Nov 2020 22:13:12 +0100	[thread overview]
Message-ID: <20201103211312.GG1583@kunai> (raw)
In-Reply-To: <1604059081-28197-1-git-send-email-qii.wang@mediatek.com>


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On Fri, Oct 30, 2020 at 07:58:01PM +0800, qii.wang@mediatek.com wrote:
> From: Qii Wang <qii.wang@mediatek.com>
> 
> The i2c driver default do dma reset after i2c reset, but sometimes
> i2c reset will trigger dma tx2rx, then apdma write data to dram
> which has been i2c_put_dma_safe_msg_buf(kfree). Move dma reset
> before i2c reset in mtk_i2c_init_hw to fix it.
> 
> Signed-off-by: Qii Wang <qii.wang@mediatek.com>

Applied to for-current, thanks!


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_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek

WARNING: multiple messages have this Message-ID (diff)
From: Wolfram Sang <wsa@the-dreams.de>
To: qii.wang@mediatek.com
Cc: srv_heupstream@mediatek.com, leilk.liu@mediatek.com,
	linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org,
	linux-i2c@vger.kernel.org, matthias.bgg@gmail.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] i2c: mediatek: move dma reset before i2c reset
Date: Tue, 3 Nov 2020 22:13:12 +0100	[thread overview]
Message-ID: <20201103211312.GG1583@kunai> (raw)
In-Reply-To: <1604059081-28197-1-git-send-email-qii.wang@mediatek.com>


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On Fri, Oct 30, 2020 at 07:58:01PM +0800, qii.wang@mediatek.com wrote:
> From: Qii Wang <qii.wang@mediatek.com>
> 
> The i2c driver default do dma reset after i2c reset, but sometimes
> i2c reset will trigger dma tx2rx, then apdma write data to dram
> which has been i2c_put_dma_safe_msg_buf(kfree). Move dma reset
> before i2c reset in mtk_i2c_init_hw to fix it.
> 
> Signed-off-by: Qii Wang <qii.wang@mediatek.com>

Applied to for-current, thanks!


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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-11-03 21:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-30 11:58 [PATCH] i2c: mediatek: move dma reset before i2c reset qii.wang
2020-10-30 11:58 ` qii.wang
2020-10-30 11:58 ` qii.wang
2020-11-03 21:13 ` Wolfram Sang [this message]
2020-11-03 21:13   ` Wolfram Sang
2020-11-03 21:13   ` Wolfram Sang

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