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From: Andrew Lunn <andrew@lunn.ch>
To: Fabio Estevam <festevam@gmail.com>
Cc: kernel@pengutronix.de, shawnguo@kernel.org, linux-imx@nxp.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 3/4] ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 reset
Date: Fri, 8 Jan 2021 02:03:40 +0100	[thread overview]
Message-ID: <X/evbCEyGMPiEhpY@lunn.ch> (raw)
In-Reply-To: <20210107235044.7897-3-festevam@gmail.com>

On Thu, Jan 07, 2021 at 08:50:43PM -0300, Fabio Estevam wrote:
> There are two KSZ8081 on the imx6ul-14x14-evk: one has the reset line
> controlled by the Q1 output of the 74LV595PW expander, and the other
> by the Q2 output.
> 
> The KSZ8081 datasheet states that the tsr parameter (Stable supply
> voltage (VDDIO, VDDA_3.3) to reset high) to be 10ms minimum and
> "After the de-assertion of reset, wait a minimum of 100 µs before
> starting programming on the MIIM (MDC/MDIO) interface." 
> 
> Describe these parameters in the devicetree.
> 
> Signed-off-by: Fabio Estevam <festevam@gmail.com>

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew

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  reply	other threads:[~2021-01-08  1:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-07 23:50 [PATCH 1/4] ARM: dts: imx6ul-14x14-evk: Fix SPI chipselect polarity Fabio Estevam
2021-01-07 23:50 ` [PATCH 2/4] ARM: dts: imx6ul-14x14-evk: Enable the GPIO expander Fabio Estevam
2021-01-08  1:02   ` Andrew Lunn
2021-01-18  0:10   ` Shawn Guo
2021-01-07 23:50 ` [PATCH 3/4] ARM: dts: imx6ul-14x14-evk: Describe the KSZ8081 reset Fabio Estevam
2021-01-08  1:03   ` Andrew Lunn [this message]
2021-01-18  0:10   ` Shawn Guo
2021-03-10 11:04   ` Joakim Zhang
2021-03-11 11:33     ` Joakim Zhang
2021-03-11 14:17       ` Andrew Lunn
2021-03-12  2:02         ` Joakim Zhang
2021-03-12 11:34       ` Fabio Estevam
2021-01-07 23:50 ` [PATCH 4/4] ARM: dts: imx6ul-14x14-evk: Add camera support Fabio Estevam
2021-01-18  0:11   ` Shawn Guo
2021-01-18  0:09 ` [PATCH 1/4] ARM: dts: imx6ul-14x14-evk: Fix SPI chipselect polarity Shawn Guo

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