linux-kernel - Re: [PATCH net 2/3] net: phy: micrel: Remove latency from driver

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Date:   Fri, 1 Apr 2022 14:47:02 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Horatiu Vultur <horatiu.vultur@...rochip.com>
Cc:     netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, hkallweit1@...il.com,
        linux@...linux.org.uk, Divya.Koppera@...rochip.com,
        davem@...emloft.net, kuba@...nel.org, richardcochran@...il.com,
        UNGLinuxDriver@...rochip.com
Subject: Re: [PATCH net 2/3] net: phy: micrel: Remove latency from driver

On Fri, Apr 01, 2022 at 11:48:04AM +0200, Horatiu Vultur wrote:
> Based on the discussions here[1], the PHY driver is the wrong place
> to set the latencies, therefore remove them.
> 
> [1] https://lkml.org/lkml/2022/3/4/325
> 
> Fixes: ece19502834d84 ("net: phy: micrel: 1588 support for LAN8814 phy")
> Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>

Thanks for the revert.

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

> -static struct kszphy_latencies lan8814_latencies = {
> -	.rx_10		= 0x22AA,
> -	.tx_10		= 0x2E4A,
> -	.rx_100		= 0x092A,
> -	.tx_100		= 0x02C1,
> -	.rx_1000	= 0x01AD,
> -	.tx_1000	= 0x00C9,
> -};

What are the reset defaults of these? I'm just wondering if we should
explicitly set them to 0, so we don't get into a mess where some
vendor bootloader sets values but mainline bootloader does not,
breaking a configuration where the userspace daemon does the correct?

	 Andrew