Thread (1 message) 1 message, 1 author, 2014-11-09

[PATCH] ARM: dts: sunxi: Banana Pi: increase startup-delay for the GMAC PHY regulator

From: Hans de Goede <hidden>
Date: 2014-11-09 21:05:26
Also in: linux-devicetree

Hi,

On 11/09/2014 02:28 PM, Karsten Merker wrote:
On the LeMaker Banana Pi, probing the external ethernet PHY connected
to the SoC's internal GMAC module sometimes fails.  The PHY power
supply is handled via a GPIO-controlled regulator, and the existing
regulator startup-delay of 50000us is too short to make sure that the
PHY is always fully powered up when it is queried by phylib.  To
guarantee a reliable PHY detection, the startup-delay has to be
increased to 60000us.
We should probably just increase it to 100000us to be safe, otherwise:

Acked-by: Hans de Goede <redacted>

Regards,

Hans
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