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-rw-r--r--drivers/i2c/busses/i2c-designware-core.c8
-rw-r--r--drivers/i2c/busses/i2c-designware-core.h1
-rw-r--r--drivers/i2c/busses/i2c-designware-platdrv.c8
3 files changed, 11 insertions, 6 deletions
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index cd52f17028cd..71055114bd80 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -457,12 +457,8 @@ done:
u32 i2c_dw_func(struct i2c_adapter *adap)
{
- return I2C_FUNC_I2C |
- I2C_FUNC_10BIT_ADDR |
- I2C_FUNC_SMBUS_BYTE |
- I2C_FUNC_SMBUS_BYTE_DATA |
- I2C_FUNC_SMBUS_WORD_DATA |
- I2C_FUNC_SMBUS_I2C_BLOCK;
+ struct dw_i2c_dev *dev = i2c_get_adapdata(adap);
+ return dev->functionality;
}
static u32 i2c_dw_read_clear_intrbits(struct dw_i2c_dev *dev)
diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
index 43de340af57f..ab4e655a6c61 100644
--- a/drivers/i2c/busses/i2c-designware-core.h
+++ b/drivers/i2c/busses/i2c-designware-core.h
@@ -182,6 +182,7 @@ struct dw_i2c_dev {
int irq;
int swab;
struct i2c_adapter adapter;
+ u32 functionality;
unsigned int tx_fifo_depth;
unsigned int rx_fifo_depth;
};
diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 08783a6ff1a2..36db7a80cbb2 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -96,6 +96,14 @@ static int __devinit dw_i2c_probe(struct platform_device *pdev)
}
clk_enable(dev->clk);
+ dev->functionality =
+ I2C_FUNC_I2C |
+ I2C_FUNC_10BIT_ADDR |
+ I2C_FUNC_SMBUS_BYTE |
+ I2C_FUNC_SMBUS_BYTE_DATA |
+ I2C_FUNC_SMBUS_WORD_DATA |
+ I2C_FUNC_SMBUS_I2C_BLOCK;
+
dev->base = ioremap(mem->start, resource_size(mem));
if (dev->base == NULL) {
dev_err(&pdev->dev, "failure mapping io resources\n");