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i2c: i2c-cros-ec-tunnel: Set retries to 3

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Since the i2c bus can get wedged on the EC sometimes, set the number of retries
to 3. Since we un-wedge the bus immediately after the wedge happens, this is the
correct fix since only one transfer will fail.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Derek Basehore 2014-09-18 17:18:55 +02:00 committed by Lee Jones
parent 63427530fa
commit 9772070608
1 changed files with 3 additions and 0 deletions
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3
drivers/i2c/busses/i2c-cros-ec-tunnel.c
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@ -16,6 +16,8 @@
#include <linux/platform_device.h>
#include <linux/slab.h>
#define I2C_MAX_RETRIES 3
/**
* struct ec_i2c_device - Driver data for I2C tunnel
*
@ -290,6 +292,7 @@ static int ec_i2c_probe(struct platform_device *pdev)
bus->adap.algo_data = bus;
bus->adap.dev.parent = &pdev->dev;
bus->adap.dev.of_node = np;
bus->adap.retries = I2C_MAX_RETRIES;
err = i2c_add_adapter(&bus->adap);
if (err) {