Re: [PATCH] i2c-designware: Manually set RESTART bit between messages

From: Wolfram Sang
Date: Wed Aug 07 2013 - 10:28:55 EST

On Fri, Jun 21, 2013 at 03:05:28PM +0800, Chew Chiau Ee wrote:
> From: Chew, Chiau Ee <>
> If both IC_EMPTYFIFO_HOLD_MASTER_EN and IC_RESTART_EN are set to 1, the
> Designware I2C controller doesn't generate RESTART unless user specifically
> requests it by setting RESTART bit in IC_DATA_CMD register.
> Since IC_EMPTYFIFO_HOLD_MASTER_EN setting can't be detected from hardware
> register, we must always manually set the restart bit between messages.
> Signed-off-by: Chew, Chiau Ee <>

Applied to for-next, thanks!

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