Re: [PATCH net-next v2 2/6] net: txgbe: Implement I2C bus master driver

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Hi

On 4/11/23 12:32, Jiawen Wu wrote:
+Cc: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>

-----Original Message-----
From: Jiawen Wu <jiawenwu@xxxxxxxxxxxxxx>
Sent: Tuesday, April 11, 2023 5:27 PM
To: netdev@xxxxxxxxxxxxxxx; linux@xxxxxxxxxxxxxxx
Cc: linux-i2c@xxxxxxxxxxxxxxx; linux-gpio@xxxxxxxxxxxxxxx;
mengyuanlou@xxxxxxxxxxxxx; Jiawen Wu <jiawenwu@xxxxxxxxxxxxxx>
Subject: [PATCH net-next v2 2/6] net: txgbe: Implement I2C bus master
driver

Implement I2C bus driver to send and receive I2C messages.

This I2C license the IP of Synopsys Designware, but without interrupt
support on the hardware design. It seems that polling mode needs to be
added in Synopsys Designware I2C driver. But currently it can only be
driven by this I2C bus master driver.

Signed-off-by: Jiawen Wu <jiawenwu@xxxxxxxxxxxxxx>
---
  drivers/net/ethernet/wangxun/Kconfig          |   1 +
  .../net/ethernet/wangxun/txgbe/txgbe_phy.c    | 153
++++++++++++++++++
  .../net/ethernet/wangxun/txgbe/txgbe_type.h   |  23 +++
  3 files changed, 177 insertions(+)

Looks like your use case has similarities with the commit 17631e8ca2d3 ("i2c: designware: Add driver support for AMD NAVI GPU").



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