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Diffstat (limited to 'drivers/i2c/busses/i2c-pxa.c')
-rw-r--r--drivers/i2c/busses/i2c-pxa.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 70f7ab829d3..86e2234faf8 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -899,6 +899,12 @@ static int i2c_pxa_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num
struct pxa_i2c *i2c = adap->algo_data;
int ret, i;
+ /* If the I2C controller is disabled we need to reset it (probably due
+ to a suspend/resume destroying state). We do this here as we can then
+ avoid worrying about resuming the controller before its users. */
+ if (!(ICR & ICR_IUE))
+ i2c_pxa_reset(i2c);
+
for (i = adap->retries; i >= 0; i--) {
ret = i2c_pxa_do_xfer(i2c, msgs, num);
if (ret != I2C_RETRY)
@@ -939,7 +945,9 @@ static struct pxa_i2c i2c_pxa = {
static int i2c_pxa_probe(struct platform_device *dev)
{
struct pxa_i2c *i2c = &i2c_pxa;
+#ifdef CONFIG_I2C_PXA_SLAVE
struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
+#endif
int ret;
#ifdef CONFIG_PXA27x
@@ -1024,5 +1032,7 @@ static void i2c_adap_pxa_exit(void)
return platform_driver_unregister(&i2c_pxa_driver);
}
+MODULE_LICENSE("GPL");
+
module_init(i2c_adap_pxa_init);
module_exit(i2c_adap_pxa_exit);