linux-kernel - Re: [PATCH net-next v2 6/6] net: phy: microchip_t1s: add support for Microchip LAN865x Rev.B0 PHYs

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Message-ID: <9c45a417-80c4-5c1f-243f-916292c741bd@microchip.com>
Date:   Tue, 23 May 2023 05:33:27 +0000
From:   <Parthiban.Veerasooran@...rochip.com>
To:     <simon.horman@...igine.com>
CC:     <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <ramon.nordin.rodriguez@...roamp.se>,
        <Horatiu.Vultur@...rochip.com>, <Woojung.Huh@...rochip.com>,
        <Nicolas.Ferre@...rochip.com>, <Thorsten.Kummermehr@...rochip.com>
Subject: Re: [PATCH net-next v2 6/6] net: phy: microchip_t1s: add support for
 Microchip LAN865x Rev.B0 PHYs

Hi Simon,

Thanks for your interest in reviewing my patches.

On 22/05/23 8:32 pm, Simon Horman wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Mon, May 22, 2023 at 05:03:31PM +0530, Parthiban Veerasooran wrote:
>> Add support for the Microchip LAN865x Rev.B0 10BASE-T1S Internal PHYs
>> (LAN8650/1). The LAN865x combines a Media Access Controller (MAC) and an
>> internal 10BASE-T1S Ethernet PHY to access 10BASE‑T1S networks. As
>> LAN867X and LAN865X are using the same function for the read_status,
>> rename the function as lan86xx_read_status.
>>
>> Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>
> 
> Hi Parthiban,
> 
> thanks for your patch.
> Some minor nits from my side.
> 
> ...
> 
>> +/* This is pulled straigt from AN1760 from 'calulation of offset 1' &
>> + * 'calculation of offset 2'
>> + */
> 
> nit: s/straigt/straight/
Ah yes, surely will correct it in the next version.
> 
>> +static int lan865x_generate_cfg_offsets(struct phy_device *phydev, s8 offsets[2])
>> +{
>> +     const u16 fixup_regs[2] = {0x0004, 0x0008};
>> +     int ret;
>> +
>> +     for (int i = 0; i < ARRAY_SIZE(fixup_regs); i++) {
>> +             ret = lan865x_revb0_indirect_read(phydev, fixup_regs[i]);
>> +             if (ret < 0)
>> +                     return ret;
>> +             if (ret & BIT(4))
>> +                     offsets[i] = ret | 0xE0;
>> +             else
>> +                     offsets[i] = ret;
>> +     }
>> +
>> +     return 0;
>> +}
> 
> ...
> 
>> +static int lan865x_setup_cfgparam(struct phy_device *phydev)
>> +{
>> +     u16 cfg_results[5];
>> +     u16 cfg_params[ARRAY_SIZE(lan865x_revb0_fixup_cfg_regs)];
>> +     s8 offsets[2];
>> +     int ret;
> 
> nit: Please use reverse xmas tree order - longest line to shortest -
>       for local variable declarations in networking code.
Yes understood, surely will correct it in the next version.

Best Regards,
Parthiban V
> 
> ...