On Fri, 7 Jul 2017 18:31:08 +0200 Fabrice Gasnier <[email protected]> wrote:
> STM32 ADC supports hardware triggers like STM32 Low-Power Timer. > For instance, STM32H7 ADC may be triggered by instances 1, 2 or 3. > Add hardware triggered mode so Low-Power Timer Trigger driver can > validate device. > > Signed-off-by: Fabrice Gasnier <[email protected]> Acked-by: Jonathan Cameron <[email protected]> > --- > drivers/iio/adc/stm32-adc.c | 14 ++++++++++++-- > 1 file changed, 12 insertions(+), 2 deletions(-) > > diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c > index 5bfcc1f..1147d7e 100644 > --- a/drivers/iio/adc/stm32-adc.c > +++ b/drivers/iio/adc/stm32-adc.c > @@ -25,6 +25,7 @@ > #include <linux/dmaengine.h> > #include <linux/iio/iio.h> > #include <linux/iio/buffer.h> > +#include <linux/iio/timer/stm32-lptim-trigger.h> > #include <linux/iio/timer/stm32-timer-trigger.h> > #include <linux/iio/trigger.h> > #include <linux/iio/trigger_consumer.h> > @@ -182,6 +183,11 @@ enum stm32_adc_extsel { > STM32_EXT13, > STM32_EXT14, > STM32_EXT15, > + STM32_EXT16, > + STM32_EXT17, > + STM32_EXT18, > + STM32_EXT19, > + STM32_EXT20, > }; > > /** > @@ -480,6 +486,9 @@ struct stm32_adc_info { > { TIM4_TRGO, STM32_EXT12 }, > { TIM6_TRGO, STM32_EXT13 }, > { TIM3_CH4, STM32_EXT15 }, > + { LPTIM1_OUT, STM32_EXT18 }, > + { LPTIM2_OUT, STM32_EXT19 }, > + { LPTIM3_OUT, STM32_EXT20 }, > {}, > }; > > @@ -995,7 +1004,8 @@ static int stm32_adc_get_trig_extsel(struct iio_dev > *indio_dev, > * Checking both stm32 timer trigger type and trig name > * should be safe against arbitrary trigger names. > */ > - if (is_stm32_timer_trigger(trig) && > + if ((is_stm32_timer_trigger(trig) || > + is_stm32_lptim_trigger(trig)) && > !strcmp(adc->cfg->trigs[i].name, trig->name)) { > return adc->cfg->trigs[i].extsel; > } > @@ -1634,7 +1644,7 @@ static int stm32_adc_probe(struct platform_device *pdev) > indio_dev->dev.parent = &pdev->dev; > indio_dev->dev.of_node = pdev->dev.of_node; > indio_dev->info = &stm32_adc_iio_info; > - indio_dev->modes = INDIO_DIRECT_MODE; > + indio_dev->modes = INDIO_DIRECT_MODE | INDIO_HARDWARE_TRIGGERED; > > platform_set_drvdata(pdev, adc); >
