Hi, On Thu, 2015-07-09 at 08:55 +0530, Sricharan R wrote: <snip> > #define ONE_BYTE 0x1 > +#define QUP_I2C_MX_CONFIG_DURING_RUN BIT(31) > > struct qup_i2c_block { > int count; > @@ -121,6 +122,7 @@ struct qup_i2c_block { > int rx_tag_len; > int data_len; > u8 tags[6]; > + int config_run; This is not directly related to "block" control logic, right? Could it made part of qup_i2c_dev structure? > }; > > struct qup_i2c_dev { > @@ -152,6 +154,10 @@ struct qup_i2c_dev { > > int (*qup_i2c_write_one)(struct qup_i2c_dev *qup, > struct i2c_msg *msg); > + /* Current i2c_msg in i2c_msgs */ > + int cmsg; > + /* total num of i2c_msgs */ > + int num; I think it will be simpler with just "bool is_last" evaluated in main xfer loop. <snip> > > @@ -374,6 +383,9 @@ static void qup_i2c_get_blk_data(struct qup_i2c_dev *qup, > /* There are 2 tag bytes that are read in to fifo for every block */ > if (msg->flags & I2C_M_RD) > qup->blk.rx_tag_len = qup->blk.count * 2; > + > + if (qup->cmsg) > + qup->blk.config_run = QUP_I2C_MX_CONFIG_DURING_RUN; This could be moved to qup_i2c_xfer_v2() to avoid repeatedly setting it. > } Regards, Ivan -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html