From: Miquel Raynal <miquel.raynal@bootlin.com> stable inclusion from stable-5.10.75 commit 1671cfd31b66fcc90812de0b9d8c8c1e71917ba4 bugzilla: 182987 https://gitee.com/openeuler/kernel/issues/I4I3MP Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit 732ae19ee8f58ecaf30cbc1bbbda5cbee6a45043 upstream. 10-bit devices must shift the value twice. This is not needed anymore on 12-bit devices. Fixes: ae47d009b508 ("iio: adc: max1027: Introduce 12-bit devices support") Cc: stable@vger.kernel.org Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Nuno Sá <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20210818111139.330636-2-miquel.raynal@bootlin.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Chen Jun <chenjun102@huawei.com> Acked-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Chen Jun <chenjun102@huawei.com> --- drivers/iio/adc/max1027.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index ca1dff3924ff..110a133cc8d4 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -103,7 +103,7 @@ MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids); .sign = 'u', \ .realbits = depth, \ .storagebits = 16, \ - .shift = 2, \ + .shift = (depth == 10) ? 2 : 0, \ .endianness = IIO_BE, \ }, \ } -- 2.20.1