From: Fabrice Gasnier <fabrice.gasnier@st.com>
To: <lee.jones@linaro.org>, <benjamin.gaignard@linaro.org>,
<jic23@kernel.org>, <thierry.reding@gmail.com>,
<robh+dt@kernel.org>
Cc: <mark.rutland@arm.com>, <alexandre.torgue@st.com>,
<mcoquelin.stm32@gmail.com>, <fabrice.gasnier@st.com>,
<benjamin.gaignard@st.com>, <linux-iio@vger.kernel.org>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-pwm@vger.kernel.org>
Subject: [PATCH v3 9/9] iio: adc: stm32: add support for lptimer triggers
Date: Fri, 7 Jul 2017 18:31:08 +0200 [thread overview]
Message-ID: <1499445068-7037-10-git-send-email-fabrice.gasnier@st.com> (raw)
In-Reply-To: <1499445068-7037-1-git-send-email-fabrice.gasnier@st.com>
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 <fabrice.gasnier@st.com>
---
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);
--
1.9.1
next prev parent reply other threads:[~2017-07-07 16:32 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-07 16:30 [PATCH v3 0/9] Add STM32 LPTimer: PWM, trigger and counter Fabrice Gasnier
2017-07-07 16:31 ` [PATCH v3 1/9] dt-bindings: mfd: Add STM32 LPTimer binding Fabrice Gasnier
2017-07-10 15:26 ` Rob Herring
2017-07-17 18:34 ` Lee Jones
2017-07-07 16:31 ` [PATCH v3 2/9] mfd: Add STM32 LPTimer driver Fabrice Gasnier
2017-07-17 18:33 ` Lee Jones
2017-07-07 16:31 ` [PATCH v3 3/9] dt-bindings: pwm: Add STM32 LPTimer PWM binding Fabrice Gasnier
2017-07-07 16:31 ` [PATCH v3 4/9] pwm: Add STM32 LPTimer PWM driver Fabrice Gasnier
2017-07-26 12:35 ` Fabrice Gasnier
2017-08-21 7:01 ` Thierry Reding
2017-07-07 16:31 ` [PATCH v3 5/9] dt-bindings: iio: Add STM32 LPTimer trigger binding Fabrice Gasnier
2017-07-10 15:27 ` Rob Herring
2017-07-07 16:31 ` [PATCH v3 6/9] iio: trigger: Add STM32 LPTimer trigger driver Fabrice Gasnier
2017-07-09 20:04 ` Jonathan Cameron
2017-07-07 16:31 ` [PATCH v3 7/9] dt-bindings: iio: Add STM32 LPTimer quadrature encoder and counter Fabrice Gasnier
2017-07-07 16:31 ` [PATCH v3 8/9] iio: counter: Add support for STM32 LPTimer Fabrice Gasnier
2017-07-09 20:12 ` Jonathan Cameron
2017-07-10 12:54 ` William Breathitt Gray
2017-07-07 16:31 ` Fabrice Gasnier [this message]
2017-07-09 20:13 ` [PATCH v3 9/9] iio: adc: stm32: add support for lptimer triggers Jonathan Cameron
2017-08-21 7:24 ` [PATCH v3 0/9] Add STM32 LPTimer: PWM, trigger and counter Lee Jones
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