2017-03-04 18:37:50 +00:00
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From 0c2744e901150b27a60bded1acb058ce26709d5a Mon Sep 17 00:00:00 2001
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2017-02-07 20:07:54 +00:00
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From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
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Date: Fri, 23 Sep 2016 04:57:17 +0200
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Subject: [PATCH] i2c: bcm2835: Support i2c-dev ioctl I2C_TIMEOUT
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Use i2c_adapter->timeout for the completion timeout value. The core
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default is 1 second.
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Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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---
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drivers/i2c/busses/i2c-bcm2835.c | 4 +---
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1 file changed, 1 insertion(+), 3 deletions(-)
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--- a/drivers/i2c/busses/i2c-bcm2835.c
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+++ b/drivers/i2c/busses/i2c-bcm2835.c
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@@ -53,8 +53,6 @@
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#define BCM2835_I2C_CDIV_MIN 0x0002
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#define BCM2835_I2C_CDIV_MAX 0xFFFE
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-#define BCM2835_I2C_TIMEOUT (msecs_to_jiffies(1000))
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-
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struct bcm2835_i2c_dev {
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struct device *dev;
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void __iomem *regs;
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@@ -242,7 +240,7 @@ static int bcm2835_i2c_xfer(struct i2c_a
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bcm2835_i2c_start_transfer(i2c_dev);
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time_left = wait_for_completion_timeout(&i2c_dev->completion,
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- BCM2835_I2C_TIMEOUT);
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+ adap->timeout);
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if (!time_left) {
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bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C,
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BCM2835_I2C_C_CLEAR);
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