netdev - Re: [PATCH net-next v11 2/9] i2c: designware: Add driver support for Wangxun 10Gb NIC

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Message-ID: <c3399327-37ee-f34c-4a48-7c1f1a62a785@linux.intel.com>
Date: Mon, 5 Jun 2023 11:10:39 +0300
From: Jarkko Nikula <jarkko.nikula@...ux.intel.com>
To: Jiawen Wu <jiawenwu@...stnetic.com>, netdev@...r.kernel.org,
 andriy.shevchenko@...ux.intel.com, mika.westerberg@...ux.intel.com,
 jsd@...ihalf.com, Jose.Abreu@...opsys.com, andrew@...n.ch,
 hkallweit1@...il.com, linux@...linux.org.uk
Cc: linux-i2c@...r.kernel.org, linux-gpio@...r.kernel.org,
 mengyuanlou@...-swift.com, Piotr Raczynski <piotr.raczynski@...el.com>
Subject: Re: [PATCH net-next v11 2/9] i2c: designware: Add driver support for
 Wangxun 10Gb NIC

On 6/5/23 05:52, Jiawen Wu wrote:
> Wangxun 10Gb ethernet chip is connected to Designware I2C, to communicate
> with SFP.
> 
> Introduce the property "wx,i2c-snps-model" to match device data for Wangxun
> in software node case. Since IO resource was mapped on the ethernet driver,
> add a model quirk to get regmap from parent device.
> 
> The exists IP limitations are dealt as workarounds:
> - IP does not support interrupt mode, it works on polling mode.
> - Additionally set FIFO depth address the chip issue.
> 
> Signed-off-by: Jiawen Wu <jiawenwu@...stnetic.com>
> Reviewed-by: Piotr Raczynski <piotr.raczynski@...el.com>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>   drivers/i2c/busses/i2c-designware-common.c  |  8 ++
>   drivers/i2c/busses/i2c-designware-core.h    |  4 +
>   drivers/i2c/busses/i2c-designware-master.c  | 89 +++++++++++++++++++--
>   drivers/i2c/busses/i2c-designware-platdrv.c | 15 ++++
>   4 files changed, 111 insertions(+), 5 deletions(-)
> 
Acked-by: Jarkko Nikula <jarkko.nikula@...ux.intel.com>