[PATCH 2/3] i2c: pxa: support hardware lock

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Append hardware lock support since it's required by Marvell PXA910.

Signed-off-by: Haojian Zhuang <haojian.zhuang@xxxxxxxxxxx>
Cc: Ben Dooks <ben-linux@xxxxxxxxx>
Cc: Jean Delvare <khali@xxxxxxxxxxxx>
---
 drivers/i2c/busses/i2c-pxa.c |    3 +++
 include/linux/i2c/pxa-i2c.h  |    3 +++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index cab529d..e9a5dd8 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -1120,6 +1120,9 @@ static int i2c_pxa_probe(struct platform_device *dev)
 
 	if (plat) {
 		i2c->adap.class = plat->class;
+		i2c->adap.hardware_lock = plat->hardware_lock;
+		i2c->adap.hardware_unlock = plat->hardware_unlock;
+		i2c->adap.hardware_trylock = plat->hardware_trylock;
 		i2c->use_pio = plat->use_pio;
 		i2c->fast_mode = plat->fast_mode;
 	}
diff --git a/include/linux/i2c/pxa-i2c.h b/include/linux/i2c/pxa-i2c.h
index 1a9f65e..076324f 100644
--- a/include/linux/i2c/pxa-i2c.h
+++ b/include/linux/i2c/pxa-i2c.h
@@ -67,6 +67,9 @@ struct i2c_pxa_platform_data {
 	unsigned int		class;
 	unsigned int		use_pio :1;
 	unsigned int		fast_mode :1;
+	void			(*hardware_lock)(struct i2c_adapter *);
+	void			(*hardware_unlock)(struct i2c_adapter *);
+	int			(*hardware_trylock)(struct i2c_adapter *);
 };
 
 extern void pxa_set_i2c_info(struct i2c_pxa_platform_data *info);
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-i2c" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux