Commit 617da00c authored by Zhiwu Song's avatar Zhiwu Song Committed by Wolfram Sang

i2c: sirf: retry 3 times as sometimes we get random noack and timeout

let i2c core retry 3 times as sometimes we get random noack and timeout
even when we access an existing i2c client.
Signed-off-by: default avatarZhiwu Song <Zhiwu.Song@csr.com>
Signed-off-by: default avatarBarry Song <Baohua.Song@csr.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent 5ebffa6b
...@@ -229,7 +229,7 @@ static int i2c_sirfsoc_xfer_msg(struct sirfsoc_i2c *siic, struct i2c_msg *msg) ...@@ -229,7 +229,7 @@ static int i2c_sirfsoc_xfer_msg(struct sirfsoc_i2c *siic, struct i2c_msg *msg)
while (readl(siic->base + SIRFSOC_I2C_CTRL) & SIRFSOC_I2C_RESET) while (readl(siic->base + SIRFSOC_I2C_CTRL) & SIRFSOC_I2C_RESET)
cpu_relax(); cpu_relax();
} }
return siic->err_status ? -EIO : 0; return siic->err_status ? -EAGAIN : 0;
} }
static u32 i2c_sirfsoc_func(struct i2c_adapter *adap) static u32 i2c_sirfsoc_func(struct i2c_adapter *adap)
...@@ -333,6 +333,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev) ...@@ -333,6 +333,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev)
adap->algo = &i2c_sirfsoc_algo; adap->algo = &i2c_sirfsoc_algo;
adap->algo_data = siic; adap->algo_data = siic;
adap->retries = 3;
adap->dev.of_node = pdev->dev.of_node; adap->dev.of_node = pdev->dev.of_node;
adap->dev.parent = &pdev->dev; adap->dev.parent = &pdev->dev;
......
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