linux-kernel - Re: [PATCH net-next 5/7] net: phy: microchip_t1s: add support for Microchip's LAN867X Rev.C1

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Message-ID: <3235fb9a-62cf-4f9a-b21e-e0b881c79c43@microchip.com>
Date: Fri, 16 Aug 2024 13:21:02 +0000
From: <Parthiban.Veerasooran@...rochip.com>
To: <horms@...nel.org>
CC: <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <ramon.nordin.rodriguez@...roamp.se>,
	<netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<UNGLinuxDriver@...rochip.com>, <Thorsten.Kummermehr@...rochip.com>
Subject: Re: [PATCH net-next 5/7] net: phy: microchip_t1s: add support for
 Microchip's LAN867X Rev.C1

On 15/08/24 8:12 pm, Simon Horman wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Mon, Aug 12, 2024 at 07:18:14PM +0530, Parthiban Veerasooran wrote:
>> This patch adds support for LAN8670/1/2 Rev.C1 as per the latest
>> configuration note AN1699 released (Revision E (DS60001699F - June 2024))
>> https://www.microchip.com/en-us/application-notes/an1699
>>
>> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
>> ---
>>   drivers/net/phy/Kconfig         |  2 +-
>>   drivers/net/phy/microchip_t1s.c | 68 ++++++++++++++++++++++++++++++++-
>>   2 files changed, 67 insertions(+), 3 deletions(-)
>>
>> diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
>> index 68db15d52355..63b45544c191 100644
>> --- a/drivers/net/phy/Kconfig
>> +++ b/drivers/net/phy/Kconfig
>> @@ -282,7 +282,7 @@ config MICREL_PHY
>>   config MICROCHIP_T1S_PHY
>>        tristate "Microchip 10BASE-T1S Ethernet PHYs"
>>        help
>> -       Currently supports the LAN8670/1/2 Rev.B1 and LAN8650/1 Rev.B0/B1
>> +       Currently supports the LAN8670/1/2 Rev.B1/C1 and LAN8650/1 Rev.B0/B1
>>          Internal PHYs.
>>
>>   config MICROCHIP_PHY
>> diff --git a/drivers/net/phy/microchip_t1s.c b/drivers/net/phy/microchip_t1s.c
>> index d0af02a25d01..62f5ce548c6a 100644
>> --- a/drivers/net/phy/microchip_t1s.c
>> +++ b/drivers/net/phy/microchip_t1s.c
>> @@ -3,7 +3,7 @@
>>    * Driver for Microchip 10BASE-T1S PHYs
>>    *
>>    * Support: Microchip Phys:
>> - *  lan8670/1/2 Rev.B1
>> + *  lan8670/1/2 Rev.B1/C1
>>    *  lan8650/1 Rev.B0/B1 Internal PHYs
>>    */
>>
>> @@ -12,6 +12,7 @@
>>   #include <linux/phy.h>
>>
>>   #define PHY_ID_LAN867X_REVB1 0x0007C162
>> +#define PHY_ID_LAN867X_REVC1 0x0007C164
>>   /* Both Rev.B0 and B1 clause 22 PHYID's are same due to B1 chip limitation */
>>   #define PHY_ID_LAN865X_REVB 0x0007C1B3
>>
>> @@ -243,7 +244,7 @@ static int lan865x_revb_config_init(struct phy_device *phydev)
>>                if (ret)
>>                        return ret;
>>
>> -             if (i == 2) {
>> +             if (i == 1) {
>>                        ret = lan865x_setup_cfgparam(phydev, offsets);
>>                        if (ret)
>>                                return ret;
> 
> Hi Parthiban,
> 
> This patch is addressing LAN867X Rev.C1 support.
> But the hunk above appears to update LAN865X Rev.B0/B1 support.
> Is that intentional?

Hi Simon,

Sorry, there is a mistake here. It is supposed to be "i == 1" only, but 
it should have been in the below patch onwards,

"[PATCH net-next 2/7] net: phy: microchip_t1s: update new initial 
settings for LAN865X Rev.B0"

Thanks for pointing it out. Will correct it in the next version.

Best regards,
Parthiban V
> 
> ...