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iio: ad9361: Make sure the part is in the desired ENSM state #36

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Merged
merged 1 commit into from
Jan 25, 2018
Merged

iio: ad9361: Make sure the part is in the desired ENSM state #36

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13 changes: 11 additions & 2 deletions drivers/iio/adc/ad9361.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1582,7 +1582,7 @@ void ad9361_ensm_force_state(struct ad9361_rf_phy *phy, u8 ensm_state)
struct spi_device *spi = phy->spi;
struct device *dev = &phy->spi->dev;
u8 dev_ensm_state;
int rc;
int rc, timeout = 10;
u32 val;

dev_ensm_state = ad9361_spi_readf(spi, REG_STATE, ENSM_STATE(~0));
Expand Down Expand Up @@ -1635,7 +1635,16 @@ void ad9361_ensm_force_state(struct ad9361_rf_phy *phy, u8 ensm_state)
ad9361_spi_write(spi, REG_ENSM_CONFIG_1, TO_ALERT | FORCE_ALERT_STATE);

rc = ad9361_spi_write(spi, REG_ENSM_CONFIG_1, val);
if (rc)
if (rc) {
dev_err(dev, "Failed to write ENSM_CONFIG_1\n");
goto out;
}

while (ad9361_ensm_get_state(phy) != ensm_state && --timeout) {
mdelay(1);
}

if (timeout == 0)
dev_err(dev, "Failed to restore state\n");

out:
Expand Down