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Message-ID: <a7f0ffc1-eb12-4e76-8e0e-7adf40912d08@lunn.ch> Date: Tue, 15 Aug 2023 03:16:03 +0200 From: Andrew Lunn <andrew@...n.ch> To: Alfred Lee <l00g33k@...il.com> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, olteanv@...il.com, davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, sgarzare@...hat.com, AVKrasnov@...rdevices.ru Subject: Re: [PATCH net v3] net: dsa: mv88e6xxx: Wait for EEPROM done before HW reset On Mon, Aug 14, 2023 at 05:13:23PM -0700, Alfred Lee wrote: > If the switch is reset during active EEPROM transactions, as in > just after an SoC reset after power up, the I2C bus transaction > may be cut short leaving the EEPROM internal I2C state machine > in the wrong state. When the switch is reset again, the bad > state machine state may result in data being read from the wrong > memory location causing the switch to enter unexpected mode > rendering it inoperational. Hi Alfred It is normal to place a history after the --- of what changed between each version. > Fixes: a3dcb3e7e70c ("net: dsa: mv88e6xxx: Wait for EEPROM done after HW reset") > Signed-off-by: Alfred Lee <l00g33k@...il.com> Reviewed-by: Andrew Lunn <andrew@...n.ch> Andrew
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