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iio: frequency: adf4377: Fix duplicated soft reset mask

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commit 6c8bf4b604 upstream.

The regmap_read_poll_timeout() uses ADF4377_0000_SOFT_RESET_R_MSK
twice instead of checking both SOFT_RESET_MSK (bit 0) and
SOFT_RESET_R_MSK (bit 7). This causes an incomplete reset status check.

The code first sets both SOFT_RESET and SOFT_RESET_R bits to 1 via
regmap_update_bits(), then polls for them to be cleared. Since we set
both bits before polling, we should be waiting for both to clear.

Fix by using both masks as done in regmap_update_bits() above.

Fixes: eda549e2e5 ("iio: frequency: adf4377: add support for ADF4377")
Signed-off-by: SeungJu Cheon <suunj1331@gmail.com>
Cc: Stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
SeungJu Cheon
2026-03-25 11:05:55 +01:00
committed by Greg Kroah-Hartman
parent 8f9fca12f2
commit fa87bb35b9
1 changed files with 1 additions and 1 deletions
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drivers/iio/frequency/adf4377.c
+1 -1
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@@ -495,7 +495,7 @@ static int adf4377_soft_reset(struct adf4377_state *st)
return ret;
return regmap_read_poll_timeout(st->regmap, 0x0, read_val,
!(read_val & (ADF4377_0000_SOFT_RESET_R_MSK |
!(read_val & (ADF4377_0000_SOFT_RESET_MSK |
ADF4377_0000_SOFT_RESET_R_MSK)), 200, 200 * 100);
}