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i2c: exynos5: de-duplicate error logs on clock setup 

In case of clock setup error it is enough to log it once.
Moreover patch simplifies clock setup routines.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Andrzej Hajda 2017-02-24 12:16:02 +01:00 committed by Wolfram Sang
parent b9d5b31a0d
commit 70c8c4e9bf
1 changed files with 7 additions and 17 deletions
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24
drivers/i2c/busses/i2c-exynos5.c
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@ -309,7 +309,8 @@ static int exynos5_i2c_set_timing(struct exynos5_i2c *i2c, bool hs_timings)
div = temp / 512;
clk_cycle = temp / (div + 1) - 2;
if (temp < 4 || div >= 256 || clk_cycle < 2) {
dev_warn(i2c->dev, "Failed to calculate divisor");
dev_err(i2c->dev, "%s clock set-up failed\n",
hs_timings ? "HS" : "FS");
return -EINVAL;
}
@ -351,24 +352,13 @@ static int exynos5_i2c_set_timing(struct exynos5_i2c *i2c, bool hs_timings)
static int exynos5_hsi2c_clock_setup(struct exynos5_i2c *i2c)
{
/*
* Configure the Fast speed timing values
* Even the High Speed mode initially starts with Fast mode
*/
if (exynos5_i2c_set_timing(i2c, false)) {
dev_err(i2c->dev, "HSI2C FS Clock set up failed\n");
return -EINVAL;
}
/* always set Fast Speed timings */
int ret = exynos5_i2c_set_timing(i2c, false);
/* configure the High speed timing values */
if (i2c->op_clock >= HSI2C_HS_TX_CLOCK) {
if (exynos5_i2c_set_timing(i2c, true)) {
dev_err(i2c->dev, "HSI2C HS Clock set up failed\n");
return -EINVAL;
}
}
if (ret < 0 || i2c->op_clock < HSI2C_HS_TX_CLOCK)
return ret;
return 0;
return exynos5_i2c_set_timing(i2c, true);
}
/*