> On Mon, Dec 26, 2011 at 04:44:41PM +0530, Alok Chauhan wrote: >> > + /* > + * In NACK error condition resetting of I2C controller happens > + * before STOP condition is properly completed by I2C controller, > + * so wait for 2 clock cycle to complete STOP condition. > + */ > + if (i2c_dev->msg_err == I2C_ERR_NO_ACK) > + udelay(DIV_ROUND_UP(2 * 1000000, i2c_dev->bus_clk_rate)); > +
>Is a delay here good, would it be better to sleep so that some other process >can gain cpu time? >>We mostly used 100 khz i2c clock frequency and delay in that case will be 20 >>usec. Would it be ok to sleep for such a smaller time? Won't it increase any >>other overhead? Please let me know if sleep is better option here instead of waiting. Thanks Alok -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
