Save and restore I2C wakeup sources.
Signed-off-by: Aaro Koskinen <aaro.koskinen@xxxxxxxxx>
---
drivers/i2c/busses/i2c-omap.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 50f3285..5ce055c 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -183,6 +183,7 @@ struct omap_i2c_dev {
u16 sclhstate;
u16 bufstate;
u16 syscstate;
+ u16 westate;
};
static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev,
@@ -242,6 +243,7 @@ static void omap_i2c_unidle(struct omap_i2c_dev *dev)
omap_i2c_write_reg(dev, OMAP_I2C_SCLH_REG, dev->sclhstate);
omap_i2c_write_reg(dev, OMAP_I2C_BUF_REG, dev->bufstate);
omap_i2c_write_reg(dev, OMAP_I2C_SYSC_REG, dev->syscstate);
+ omap_i2c_write_reg(dev, OMAP_I2C_WE_REG, dev->westate);
}
dev->idle = 0;
omap_i2c_write_reg(dev, OMAP_I2C_IE_REG, dev->iestate);
@@ -316,8 +318,8 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
* WFI instruction.
* REVISIT: Some wkup sources might not be needed.
*/
- omap_i2c_write_reg(dev, OMAP_I2C_WE_REG,
- OMAP_I2C_WE_ALL);
+ dev->westate = OMAP_I2C_WE_ALL;
+ omap_i2c_write_reg(dev, OMAP_I2C_WE_REG, dev->westate);
}
}
--
1.5.4.3
--
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