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From: Shawn Guo <shawnguo@kernel.org>
To: Dima Azarkin <azdmg@outlook.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Christian Hewitt <christianshewitt@gmail.com>
Subject: Re: [PATCH] ARM: dts: imx6qdl-wandboard: add scl/sda gpios definitions for i2c bus recovery
Date: Wed, 3 Mar 2021 20:47:25 +0800	[thread overview]
Message-ID: <20210303124722.GF15865@dragon> (raw)
In-Reply-To: <AM5PR0802MB2498F95537E1FF0E5DEB36BEA9B79@AM5PR0802MB2498.eurprd08.prod.outlook.com>

On Sun, Jan 31, 2021 at 06:54:46PM +0300, Dima Azarkin wrote:
> The i2c bus on imx6qdl-wandboard has intermittent issues where SDA can freeze
> on low level at the end of transaction so the bus can no longer work. This
> impacts reading of EDID data leading to incorrect TV resolution and no audio.
> 
> This scenario is improved by adding scl/sda gpios definitions to implement the
> i2c bus recovery mechanism.
> 
> Signed-off-by: Dima Azarkin <azdmg@outlook.com>

Applied, thanks.

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WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo@kernel.org>
To: Dima Azarkin <azdmg@outlook.com>
Cc: Rob Herring <robh+dt@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	Christian Hewitt <christianshewitt@gmail.com>
Subject: Re: [PATCH] ARM: dts: imx6qdl-wandboard: add scl/sda gpios definitions for i2c bus recovery
Date: Wed, 3 Mar 2021 20:47:25 +0800	[thread overview]
Message-ID: <20210303124722.GF15865@dragon> (raw)
In-Reply-To: <AM5PR0802MB2498F95537E1FF0E5DEB36BEA9B79@AM5PR0802MB2498.eurprd08.prod.outlook.com>

On Sun, Jan 31, 2021 at 06:54:46PM +0300, Dima Azarkin wrote:
> The i2c bus on imx6qdl-wandboard has intermittent issues where SDA can freeze
> on low level at the end of transaction so the bus can no longer work. This
> impacts reading of EDID data leading to incorrect TV resolution and no audio.
> 
> This scenario is improved by adding scl/sda gpios definitions to implement the
> i2c bus recovery mechanism.
> 
> Signed-off-by: Dima Azarkin <azdmg@outlook.com>

Applied, thanks.

  parent reply	other threads:[~2021-03-03 17:48 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-31 15:54 [PATCH] ARM: dts: imx6qdl-wandboard: add scl/sda gpios definitions for i2c bus recovery Dima Azarkin
2021-02-01  1:15 ` Fabio Estevam
2021-02-01  1:15   ` Fabio Estevam
2021-03-03 12:47 ` Shawn Guo [this message]
2021-03-03 12:47   ` Shawn Guo

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