linux-kernel - [PATCH] i2c: slave: support I2C_SLAVE_STOP event for the read transactions

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Message-Id: <20200330105038.22546-1-biwen.li@oss.nxp.com>
Date:   Mon, 30 Mar 2020 18:50:38 +0800
From:   Biwen Li <biwen.li@....nxp.com>
To:     leoyang.li@....com, linux@...pel-privat.de, kernel@...gutronix.de,
        wsa@...-dreams.de
Cc:     linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        jiafei.pan@....com, Biwen Li <biwen.li@....com>
Subject: [PATCH] i2c: slave: support I2C_SLAVE_STOP event for the read transactions

From: Biwen Li <biwen.li@....com>

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