Hi, Juergen Beisert writes: > diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c > index a08c173..00b61ac 100644 > --- a/drivers/staging/iio/adc/mxs-lradc.c > +++ b/drivers/staging/iio/adc/mxs-lradc.c > @@ -35,6 +35,7 @@ > #include <linux/completion.h> > #include <linux/delay.h> > #include <linux/input.h> > +#include <linux/clk.h> > > #include <linux/iio/iio.h> > #include <linux/iio/buffer.h> > @@ -134,6 +135,8 @@ struct mxs_lradc { > void __iomem *base; > int irq[13]; > > + struct clk *clk; > + > uint32_t *buffer; > struct iio_trigger *trig; > > @@ -928,6 +931,9 @@ static int mxs_lradc_probe(struct platform_device *pdev) > if (IS_ERR(lradc->base)) > return PTR_ERR(lradc->base); > > + lradc->clk = devm_clk_get(&pdev->dev, NULL); > + clk_prepare_enable(lradc->clk); > + Wouldn't it make sense to enable the clock only when the device is opened to save power while not actually in use? Lothar Waßmann -- ___________________________________________________________ Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10 Geschäftsführer: Matthias Kaussen Handelsregistereintrag: Amtsgericht Aachen, HRB 4996 www.karo-electronics.de | info@xxxxxxxxxxxxxxxxxxx ___________________________________________________________ -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html