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mfd: ti_am335x_tscadc: Update reg_cache variable in clr function

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The reg_cache variable should be updated with current
steps in the reg_se register. Then the mask should
apply and clear the register. Previously, the reg_cache
can be an old redundant value that isn't updated.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Zubair Lutfullah 2013-08-13 17:40:56 +01:00 committed by Lee Jones
parent b018e1361b
commit 5d945d94a1
1 changed files with 2 additions and 2 deletions
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4
drivers/mfd/ti_am335x_tscadc.c
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@ -67,10 +67,10 @@ EXPORT_SYMBOL_GPL(am335x_tsc_se_set);
void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val)
{
spin_lock(&tsadc->reg_lock);
tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE);
tsadc->reg_se_cache &= ~val;
spin_unlock(&tsadc->reg_lock);
am335x_tsc_se_update(tsadc);
spin_unlock(&tsadc->reg_lock);
}
EXPORT_SYMBOL_GPL(am335x_tsc_se_clr);