On Tue, 26 Jul 2016 14:11:47 +0800, Caesar Wang wrote: > SARADC controller needs to be reset before programming it, otherwise > it will not function properly. > > Signed-off-by: Caesar Wang <[email protected]> > Cc: Jonathan Cameron <[email protected]> > Cc: Heiko Stuebner <[email protected]> > Cc: Rob Herring <[email protected]> > Cc: [email protected] > Cc: [email protected] > --- > > diff --git a/drivers/iio/adc/rockchip_saradc.c > b/drivers/iio/adc/rockchip_saradc.c > index f9ad6c2..2f0e110 100644 > --- a/drivers/iio/adc/rockchip_saradc.c > +++ b/drivers/iio/adc/rockchip_saradc.c > @@ -218,6 +231,13 @@ static int rockchip_saradc_probe(struct platform_device > *pdev) > if (IS_ERR(info->regs)) > return PTR_ERR(info->regs); > > + info->reset = devm_reset_control_get(&pdev->dev, "saradc-apb"); > + if (IS_ERR(info->reset)) { > + ret = PTR_ERR(info->reset); > + dev_err(&pdev->dev, "failed to get saradc reset: %d\n", ret); > + return ret; > + }
Does this need to handle ENOENT so as to avoid failing with old device tree blobs?
