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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-03-24 14:32:13 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2020-03-24 21:59:33 +0100 |
| commit | 38a592e26612a6a87e1aa1de5d6f97007bc4934c (patch) | |
| tree | d7d8f737235391a8d908ca5b9709b5ddcedb8ee5 /drivers/i2c/busses/i2c-rcar.c | |
| parent | 263a5646d88506c82850d824e673b14698ebad6b (diff) | |
| download | linux-38a592e26612a6a87e1aa1de5d6f97007bc4934c.tar.bz2 | |
i2c: rcar: Consolidate timings calls in rcar_i2c_clock_calculate()
Move i2c_parse_fw_timings() to rcar_i2c_clock_calculate() to consolidate
timings calls in one place.
While here, replace hard coded values with standard bus frequency definitions.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/busses/i2c-rcar.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-rcar.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index c8b57ded0e7b..25013641a85d 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -235,17 +235,20 @@ static int rcar_i2c_bus_barrier(struct rcar_i2c_priv *priv) return i2c_recover_bus(&priv->adap); } -static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv, struct i2c_timings *t) +static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv) { u32 scgd, cdf, round, ick, sum, scl, cdf_width; unsigned long rate; struct device *dev = rcar_i2c_priv_to_dev(priv); + struct i2c_timings i2c_t = { + .bus_freq_hz = I2C_MAX_STANDARD_MODE_FREQ, + .scl_fall_ns = 35, + .scl_rise_ns = 200, + .scl_int_delay_ns = 50, + }, *t = &i2c_t; /* Fall back to previously used values if not supplied */ - t->bus_freq_hz = t->bus_freq_hz ?: 100000; - t->scl_fall_ns = t->scl_fall_ns ?: 35; - t->scl_rise_ns = t->scl_rise_ns ?: 200; - t->scl_int_delay_ns = t->scl_int_delay_ns ?: 50; + i2c_parse_fw_timings(dev, &i2c_t, false); switch (priv->devtype) { case I2C_RCAR_GEN1: @@ -920,7 +923,6 @@ static int rcar_i2c_probe(struct platform_device *pdev) struct rcar_i2c_priv *priv; struct i2c_adapter *adap; struct device *dev = &pdev->dev; - struct i2c_timings i2c_t = { 0 }; int ret; /* Otherwise logic will break because some bytes must always use PIO */ @@ -957,8 +959,6 @@ static int rcar_i2c_probe(struct platform_device *pdev) i2c_set_adapdata(adap, priv); strlcpy(adap->name, pdev->name, sizeof(adap->name)); - i2c_parse_fw_timings(dev, &i2c_t, false); - /* Init DMA */ sg_init_table(&priv->sg, 1); priv->dma_direction = DMA_NONE; @@ -967,7 +967,7 @@ static int rcar_i2c_probe(struct platform_device *pdev) /* Activate device for clock calculation */ pm_runtime_enable(dev); pm_runtime_get_sync(dev); - ret = rcar_i2c_clock_calculate(priv, &i2c_t); + ret = rcar_i2c_clock_calculate(priv); if (ret < 0) goto out_pm_put; |