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mfd: ti_am335x_tscadc: Simplify divisor calculation

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Let's rewrite this on a single line, it does not hurt the readability
and saves a useless temporary variable.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20211015081506.933180-16-miquel.raynal@bootlin.com
This commit is contained in:
Miquel Raynal 2021-10-15 10:14:33 +02:00 committed by Lee Jones
parent 235a96e92c
commit 8543537c7d
1 changed files with 1 additions and 5 deletions
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6
drivers/mfd/ti_am335x_tscadc.c
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@ -122,7 +122,6 @@ static int ti_tscadc_probe(struct platform_device *pdev)
const __be32 *cur;
u32 val;
int err, ctrl;
int clock_rate;
int tsc_wires = 0, adc_channels = 0, total_channels;
int readouts = 0;
@ -212,11 +211,8 @@ static int ti_tscadc_probe(struct platform_device *pdev)
err = PTR_ERR(clk);
goto err_disable_clk;
}
clock_rate = clk_get_rate(clk);
tscadc->clk_div = clock_rate / ADC_CLK;
/* TSCADC_CLKDIV needs to be configured to the value minus 1 */
tscadc->clk_div--;
tscadc->clk_div = (clk_get_rate(clk) / ADC_CLK) - 1;
regmap_write(tscadc->regmap, REG_CLKDIV, tscadc->clk_div);
/* Set the control register bits */