From: Marek Vasut <marex@denx.de>
To: Andrew Lunn <andrew@lunn.ch>
Cc: netdev@vger.kernel.org, Florian Fainelli <f.fainelli@gmail.com>,
Guenter Roeck <linux@roeck-us.net>,
Heiner Kallweit <hkallweit1@gmail.com>,
Jean Delvare <jdelvare@suse.com>,
linux-hwmon@vger.kernel.org
Subject: Re: [PATCH V5] net: phy: tja11xx: Add TJA11xx PHY driver
Date: Sat, 18 May 2019 18:50:48 +0200 [thread overview]
Message-ID: <b69b9b70-a299-2754-de9f-c7562b31fa16@denx.de> (raw)
In-Reply-To: <20190518141456.GK14298@lunn.ch>
On 5/18/19 4:14 PM, Andrew Lunn wrote:
> On Sat, May 18, 2019 at 01:51:23AM +0200, Marek Vasut wrote:
>> Add driver for the NXP TJA1100 and TJA1101 PHYs. These PHYs are special
>> BroadRReach 100BaseT1 PHYs used in automotive.
>
> Hi Marek
Hello Andrew,
>> + }, {
>> + PHY_ID_MATCH_MODEL(PHY_ID_TJA1101),
>> + .name = "NXP TJA1101",
>> + .features = PHY_BASIC_T1_FEATURES,
>
> One thing i would like to do before this patch goes in is define
> ETHTOOL_LINK_MODE_100baseT1_Full_BIT in ethtool.h, and use it here.
> We could not do it earlier because were ran out of bits. But with
> PHYLIB now using bitmaps, rather than u32, we can.
>
> Once net-next reopens i will submit a patch adding it.
I can understand blocking patches from being applied if they have review
problems or need to be updated on some existing or even posted feature.
But blocking a patch because some future yet-to-be-developed patch is a
bit odd.
Besides, this sounds more like a cleanup which can very well be done
later. It will surely be done for the other PHY drivers too.
> I also see in the data sheet we should be able to correct detect its
> features using register 15. So we should extend
> genphy_read_abilities().
Which bits do you refer to ?
Anyway, this is something which can be done in a subsequent patch, I
don't see a reason for blocking hardware enablement because of this.
> That will allow us to avoid changing
> PHY_BASIC_T1_FEATURES and possibly breaking backwards compatibility of
> other T1 PHY which currently say they are plain 100BaseT.
What sort of backward compatibility ?
--
Best regards,
Marek Vasut
next prev parent reply other threads:[~2019-05-18 19:03 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-17 23:51 [PATCH V5] net: phy: tja11xx: Add TJA11xx PHY driver Marek Vasut
2019-05-18 14:14 ` Andrew Lunn
2019-05-18 16:50 ` Marek Vasut [this message]
2019-05-18 20:12 ` Andrew Lunn
2019-05-18 20:46 ` Marek Vasut
2019-05-20 17:21 ` Florian Fainelli
2019-05-22 21:48 ` Marek Vasut
2019-05-22 22:14 ` Andrew Lunn
2019-05-22 22:42 ` Marek Vasut
2019-05-23 2:38 ` Florian Fainelli
2019-05-23 19:48 ` Vladimir Oltean
2019-05-24 11:41 ` Marek Vasut
2019-05-24 13:52 ` Andrew Lunn
2019-05-24 14:23 ` Marek Vasut
2019-05-24 14:28 ` Andrew Lunn
2019-05-27 15:44 ` Guenter Roeck
2019-05-28 18:17 ` Marek Vasut
2019-05-28 19:34 ` Andrew Lunn
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