netdev - Re: [PATCH v3 net-next 03/10] net: phy: Add support for LAN937x T1 phy driver

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Date:   Wed, 11 Aug 2021 23:22:32 +0530
From:   Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>
To:     <andrew@...n.ch>
CC:     <netdev@...r.kernel.org>, <olteanv@...il.com>,
        <robh+dt@...nel.org>, <UNGLinuxDriver@...rochip.com>,
        <Woojung.Huh@...rochip.com>, <hkallweit1@...il.com>,
        <linux@...linux.org.uk>, <davem@...emloft.net>, <kuba@...nel.org>,
        <linux-kernel@...r.kernel.org>, <vivien.didelot@...il.com>,
        <f.fainelli@...il.com>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v3 net-next 03/10] net: phy: Add support for LAN937x T1
 phy driver

Andrew,

On Fri, 2021-07-23 at 23:01 +0530, Prasanna Vengateshan wrote:
> Added support for Microchip LAN937x T1 phy driver. The sequence of
> initialization is used commonly for both LAN87xx and LAN937x
> drivers. The new initialization sequence is an improvement to
> existing LAN87xx and it is shared with LAN937x.
> 
> Also relevant comments are added in the existing code and existing
> soft-reset customized code has been replaced with
> genphy_soft_reset().
> 
> access_ereg_clr_poll_timeout() API is introduced for polling phy
> bank write and this is linked with PHYACC_ATTR_MODE_POLL.
> 
> Finally introduced function table for LAN937X_T1_PHY_ID along with
> microchip_t1_phy_driver struct.
> 
> Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>
> ---
>  drivers/net/phy/microchip_t1.c | 319 +++++++++++++++++++++++++++------
>  1 file changed, 260 insertions(+), 59 deletions(-)
> 
> diff --git a/drivers/net/phy/microchip_t1.c b/drivers/net/phy/microchip_t1.c
> index 4dc00bd5a8d2..a3f1b5d123ce 100644
> --- a/drivers/net/phy/microchip_t1.c
> +++ b/drivers/net/phy/microchip_t1.c
> @@ -30,15 +30,53 @@
>  #define        PHYACC_ATTR_MODE_READ           0
>  #define        PHYACC_ATTR_MODE_WRITE          1
>  #define        PHYACC_ATTR_MODE_MODIFY         2
> +#define        PHYACC_ATTR_MODE_POLL           3
>  
>  #define        PHYACC_ATTR_BANK_SMI            0
>  #define        PHYACC_ATTR_BANK_MISC           1
>  #define        PHYACC_ATTR_BANK_PCS            2
>  #define        PHYACC_ATTR_BANK_AFE            3
> +#define        PHYACC_ATTR_BANK_DSP            4
>  #define        PHYACC_ATTR_BANK_MAX            7
 

Are there any items that need a change in this patch? It will be helpful for me
to include them in the next version. Thanks.


Prasanna V