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mfd: ab8500-gpadc: Reread on failure

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Reread the gpadc once upon failure.

Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Mattias WALLIN <mattias.wallin@stericsson.com>
Acked-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Jonas Aaberg 2012-04-17 16:10:46 +02:00 committed by Lee Jones
parent 774c50abae
commit d89cc5aad1
1 changed files with 5 additions and 0 deletions
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5
drivers/mfd/ab8500-gpadc.c
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@ -256,6 +256,11 @@ 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;