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>

1 files changed, 7 insertions, 5 deletions

diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 6055e92f0ac8..671d37c23f4c 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);