[RFC 1/2] i2c: omap: drop class based instantiation of slaves

From: Grygorii Strashko
Date: Wed Jun 19 2013 - 14:27:04 EST


Class based instantiation mechanism can cause huge delays when booting.
For example: when CONFIG_SENSORS_LM75 option is enabled for omap4-sdp board -
it introduces 5-6 ms boot delay.
It's not recommended to use this mechanism with embedded I2C, so disable
it by leaving I2C adapter "class" field undefined (remove I2C_CLASS_HWMON).

CC: Tony Lindgren <tony@xxxxxxxxxxx>
Signed-off-by: Grygorii Strashko <grygorii.strashko@xxxxxx>
---
drivers/i2c/busses/i2c-omap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index f06109f..ae2b27f 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1231,7 +1231,7 @@ omap_i2c_probe(struct platform_device *pdev)
adap = &dev->adapter;
i2c_set_adapdata(adap, dev);
adap->owner = THIS_MODULE;
- adap->class = I2C_CLASS_HWMON | I2C_CLASS_DEPRECATED;
+ adap->class = I2C_CLASS_DEPRECATED;
strlcpy(adap->name, "OMAP I2C adapter", sizeof(adap->name));
adap->algo = &omap_i2c_algo;
adap->dev.parent = &pdev->dev;
--
1.7.9.5

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