From: Jonas Aaberg <[email protected]> Reread the gpadc once upon failure.
Signed-off-by: Jonas Aaberg <[email protected]> Signed-off-by: Lee Jones <[email protected]> Reviewed-by: Mattias WALLIN <[email protected]> --- drivers/mfd/ab8500-gpadc.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mfd/ab8500-gpadc.c b/drivers/mfd/ab8500-gpadc.c index 34c1d04..1b48ac1 100644 --- a/drivers/mfd/ab8500-gpadc.c +++ b/drivers/mfd/ab8500-gpadc.c @@ -259,6 +259,11 @@ int ab8500_gpadc_convert(struct ab8500_gpadc *gpadc, u8 channel) int voltage; ad_value = ab8500_gpadc_read_raw(gpadc, channel); + + /* On failure retry a second time */ + if (ad_value < 0) + ad_value = ab8500_gpadc_read_raw(gpadc, channel); + if (ad_value < 0) { dev_err(gpadc->dev, "GPADC raw value failed ch: %d\n", channel); return ad_value; -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
