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iio: dac: stm32-dac: use reset controller only at probe time

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This change removes the reset controller reference from the local
DAC instance since it is used only at probe time.

Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Etienne Carriere 2020-01-13 14:14:25 +01:00 committed by Jonathan Cameron
parent 0013ccaa13
commit 4a001c96b1
1 changed files with 5 additions and 6 deletions
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11
drivers/iio/dac/stm32-dac-core.c
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@ -20,13 +20,11 @@
/**
* struct stm32_dac_priv - stm32 DAC core private data
* @pclk: peripheral clock common for all DACs
* @rst: peripheral reset control
* @vref: regulator reference
* @common: Common data for all DAC instances
*/
struct stm32_dac_priv {
struct clk *pclk;
struct reset_control *rst;
struct regulator *vref;
struct stm32_dac_common common;
};
@ -94,6 +92,7 @@ static int stm32_dac_probe(struct platform_device *pdev)
struct regmap *regmap;
struct resource *res;
void __iomem *mmio;
struct reset_control *rst;
int ret;
if (!dev->of_node)
@ -148,11 +147,11 @@ static int stm32_dac_probe(struct platform_device *pdev)
priv->common.vref_mv = ret / 1000;
dev_dbg(dev, "vref+=%dmV\n", priv->common.vref_mv);
priv->rst = devm_reset_control_get_exclusive(dev, NULL);
if (!IS_ERR(priv->rst)) {
reset_control_assert(priv->rst);
rst = devm_reset_control_get_exclusive(dev, NULL);
if (!IS_ERR(rst)) {
reset_control_assert(rst);
udelay(2);
reset_control_deassert(priv->rst);
reset_control_deassert(rst);
}
if (cfg && cfg->has_hfsel) {