The following commit has been merged in the linux branch: commit a4094a76e6a45691b8f9108060b750a48b4c4563 Author: Richard Zhao linuxzsc@gmail.com Date: Sat Oct 17 17:46:23 2009 +0800
i2c: imx: only imx1 needs disable delay
check cpu_is_mx1() when disable delay.
Signed-off-by: Richard Zhao linuxzsc@gmail.com Signed-off-by: Ben Dooks ben-linux@fluff.org
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index 6055e92..671d37c 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -225,11 +225,13 @@ static void i2c_imx_stop(struct imx_i2c_struct *i2c_imx) writeb(temp, i2c_imx->base + IMX_I2C_I2CR); i2c_imx->stopped = 1; } - /* - * This delay caused by an i.MXL hardware bug. - * If no (or too short) delay, no "STOP" bit will be generated. - */ - udelay(i2c_imx->disable_delay); + if (cpu_is_mx1()) { + /* + * This delay caused by an i.MXL hardware bug. + * If no (or too short) delay, no "STOP" bit will be generated. + */ + udelay(i2c_imx->disable_delay); + }
if (!i2c_imx->stopped) i2c_imx_bus_busy(i2c_imx, 0);