linux-kernel - RE: [PATCH] i2c: slave: support I2C_SLAVE

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Date:   Mon, 30 Mar 2020 10:56:28 +0000
From:   Biwen Li <biwen.li@....com>
To:     "Biwen Li (OSS)" <biwen.li@....nxp.com>,
        Leo Li <leoyang.li@....com>,
        "linux@...pel-privat.de" <linux@...pel-privat.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "wsa@...-dreams.de" <wsa@...-dreams.de>
CC:     "linux-i2c@...r.kernel.org" <linux-i2c@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Jiafei Pan <jiafei.pan@....com>
Subject: RE: [PATCH] i2c: slave: support I2C_SLAVE_STOP event for the read
 transactions

Hi All,

The patch based on https://patchwork.ozlabs.org/patch/1203640/
and it is not accepted, so it(https://patchwork.ozlabs.org/patch/1203640/) is needed before apply the new patch. 

Best Regards,
Biwen Li
> Support I2C_SLAVE_STOP event for the read transactions(master read from
> slave)
> 
> Signed-off-by: Biwen Li <biwen.li@....com>
> ---
>  drivers/i2c/busses/i2c-imx.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index
> 62517a41b32d..1fd0d87885d5 100644
> --- a/drivers/i2c/busses/i2c-imx.c
> +++ b/drivers/i2c/busses/i2c-imx.c
> @@ -1464,6 +1464,7 @@ static irqreturn_t i2c_imx_slave_isr(struct
> imx_i2c_struct *i2c_imx)
>  		ctl &= ~I2CR_MTX;
>  		imx_i2c_write_reg(ctl, i2c_imx, IMX_I2C_I2CR);
>  		imx_i2c_read_reg(i2c_imx, IMX_I2C_I2DR);
> +		i2c_slave_event(i2c_imx->slave, I2C_SLAVE_STOP, &value);
>  	}
>  	return IRQ_HANDLED;
>  }
> --
> 2.17.1