diff options
| author | Andrzej Hajda <a.hajda@samsung.com> | 2017-02-24 14:16:02 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2017-04-21 15:02:11 +0300 |
| commit | 70c8c4e9bf3b586516b0cd224bb3aed008efc300 (patch) | |
| tree | 180384e23d90169b8355aa7417e03b549bf4767f /drivers/i2c | |
| parent | b9d5b31a0dee47e3a1351589d361443e66f4f125 (diff) | |
| download | linux-70c8c4e9bf3b586516b0cd224bb3aed008efc300.tar.xz | |
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>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/busses/i2c-exynos5.c | 24 |
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c index 3d21bc280927..a1e1e7cba448 100644 --- a/drivers/i2c/busses/i2c-exynos5.c +++ b/drivers/i2c/busses/i2c-exynos5.c @@ -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); } /* |