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authorDerek Basehore <dbasehore@chromium.org>2014-09-18 17:18:55 +0200
committerLee Jones <lee.jones@linaro.org>2014-10-06 21:30:04 +0100
commit97720706084dd8c45eecc61d39353c7b62939b8f (patch)
treea7781b592c496e9d4da720d7d668f6aeaf70b40d /drivers/i2c
parent63427530fa7a78b42a19f47fb0c12b303c0666ca (diff)
downloadop-kernel-dev-97720706084dd8c45eecc61d39353c7b62939b8f.zip
op-kernel-dev-97720706084dd8c45eecc61d39353c7b62939b8f.tar.gz
i2c: i2c-cros-ec-tunnel: Set retries to 3
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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-cros-ec-tunnel.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-cros-ec-tunnel.c b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
index 43be23d..8ca5cbb 100644
--- a/drivers/i2c/busses/i2c-cros-ec-tunnel.c
+++ b/drivers/i2c/busses/i2c-cros-ec-tunnel.c
@@ -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) {
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