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i2c: bcm2835: Support i2c-dev ioctl I2C_TIMEOUT

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Use i2c_adapter->timeout for the completion timeout value. The core
default is 1 second.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Noralf Trønnes 2016-10-03 22:06:13 +02:00 committed by Wolfram Sang
parent ee05fea21b
commit e13e19e12f
1 changed files with 1 additions and 3 deletions
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4
drivers/i2c/busses/i2c-bcm2835.c
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@ -53,8 +53,6 @@
#define BCM2835_I2C_CDIV_MIN 0x0002 #define BCM2835_I2C_CDIV_MIN 0x0002
#define BCM2835_I2C_CDIV_MAX 0xFFFE #define BCM2835_I2C_CDIV_MAX 0xFFFE
#define BCM2835_I2C_TIMEOUT (msecs_to_jiffies(1000))
struct bcm2835_i2c_dev { struct bcm2835_i2c_dev {
struct device *dev; struct device *dev;
void __iomem *regs; void __iomem *regs;
@ -242,7 +240,7 @@ static int bcm2835_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[],
bcm2835_i2c_start_transfer(i2c_dev); bcm2835_i2c_start_transfer(i2c_dev);
time_left = wait_for_completion_timeout(&i2c_dev->completion, time_left = wait_for_completion_timeout(&i2c_dev->completion,
BCM2835_I2C_TIMEOUT); adap->timeout);
if (!time_left) { if (!time_left) {
bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C,
BCM2835_I2C_C_CLEAR); BCM2835_I2C_C_CLEAR);