[PATCH 0/3] iio: trigger: stm32-timer: add STM32H7 variant

[PATCH 0/3] iio: trigger: stm32-timer: add STM32H7 variant

[Fabrice Gasnier]

STM32H7 variant has additional timer instances, and slightly different
valid triggers.
This patchset introduces a new compatible for STM32H7 timers, to handle
this new variant, with appropriate configuration data.

Fabrice Gasnier (3):
  dt-bindings: iio: timer: stm32: add support for STM32H7
  iio: trigger: stm32-timer: add support for STM32H7
  iio: trigger: stm32-timer: add output compare triggers

 .../bindings/iio/timer/stm32-timer-trigger.txt     |  4 +-
 drivers/iio/trigger/stm32-timer-trigger.c          | 78 +++++++++++++++++++---
 include/linux/iio/timer/stm32-timer-trigger.h      | 14 ++++
 3 files changed, 84 insertions(+), 12 deletions(-)

-- 
1.9.1

[PATCH 1/3] dt-bindings: iio: timer: stm32: add support for STM32H7

[Fabrice Gasnier]

STM32H7 has slightly different triggers than previous versions.
Introduce st,stm32h7-timer-trigger compatible to handle this new variant.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org>
---
 Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
index 55a653d..b565ced 100644
--- a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
+++ b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
@@ -4,7 +4,9 @@ Must be a sub-node of an STM32 Timers device tree node.
 See ../mfd/stm32-timers.txt for details about the parent node.
 
 Required parameters:
-- compatible:	Must be "st,stm32-timer-trigger".
+- compatible:	Must be one of:
+		"st,stm32-timer-trigger"
+		"st,stm32h7-timer-trigger"
 - reg:		Identify trigger hardware block.
 
 Example:
-- 
1.9.1

Re: [PATCH 1/3] dt-bindings: iio: timer: stm32: add support for STM32H7

[Jonathan Cameron]

On Thu, 3 Aug 2017 11:14:12 +0200
Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org> wrote:

> STM32H7 has slightly different triggers than previous versions.
> Introduce st,stm32h7-timer-trigger compatible to handle this new variant.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org>
Applied to the togreg branch of iio.git and pushed out as testing.
Thanks,

Jonathan
> ---
>  Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
> index 55a653d..b565ced 100644
> --- a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
> +++ b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
> @@ -4,7 +4,9 @@ Must be a sub-node of an STM32 Timers device tree node.
>  See ../mfd/stm32-timers.txt for details about the parent node.
>  
>  Required parameters:
> -- compatible:	Must be "st,stm32-timer-trigger".
> +- compatible:	Must be one of:
> +		"st,stm32-timer-trigger"
> +		"st,stm32h7-timer-trigger"
>  - reg:		Identify trigger hardware block.
>  
>  Example:

Re: [PATCH 1/3] dt-bindings: iio: timer: stm32: add support for STM32H7

[Rob Herring]

On Thu, Aug 03, 2017 at 11:14:12AM +0200, Fabrice Gasnier wrote:
> STM32H7 has slightly different triggers than previous versions.
> Introduce st,stm32h7-timer-trigger compatible to handle this new variant.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Re: [PATCH 1/3] dt-bindings: iio: timer: stm32: add support for STM32H7

[Jonathan Cameron]

On Thu, 10 Aug 2017 12:12:17 -0500
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:

> On Thu, Aug 03, 2017 at 11:14:12AM +0200, Fabrice Gasnier wrote:
> > STM32H7 has slightly different triggers than previous versions.
> > Introduce st,stm32h7-timer-trigger compatible to handle this new variant.
> > 
> > Signed-off-by: Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org>
> > ---
> >  Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)  
> 
> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Thanks,

[PATCH 2/3] iio: trigger: stm32-timer: add support for STM32H7

[Fabrice Gasnier]

Add support for STM32H7 timer triggers:
- Add new valids_table
- Introduce compatible, with configuration data
- Extend up to 15 timers, available on STM32H7

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
 drivers/iio/trigger/stm32-timer-trigger.c     | 55 +++++++++++++++++++++++++--
 include/linux/iio/timer/stm32-timer-trigger.h |  2 +
 2 files changed, 53 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index d22bc56..33890f9 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -13,6 +13,7 @@
 #include <linux/mfd/stm32-timers.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/of_device.h>
 
 #define MAX_TRIGGERS 7
 #define MAX_VALIDS 5
@@ -31,6 +32,9 @@
 	{ }, /* timer 10 */
 	{ }, /* timer 11 */
 	{ TIM12_TRGO, TIM12_CH1, TIM12_CH2,},
+	{ }, /* timer 13 */
+	{ }, /* timer 14 */
+	{ TIM15_TRGO,},
 };
 
 /* List the triggers accepted by each timer */
@@ -49,6 +53,24 @@
 	{ TIM4_TRGO, TIM5_TRGO,},
 };
 
+static const void *stm32h7_valids_table[][MAX_VALIDS] = {
+	{ TIM15_TRGO, TIM2_TRGO, TIM3_TRGO, TIM4_TRGO,},
+	{ TIM1_TRGO, TIM8_TRGO, TIM3_TRGO, TIM4_TRGO,},
+	{ TIM1_TRGO, TIM2_TRGO, TIM15_TRGO, TIM4_TRGO,},
+	{ TIM1_TRGO, TIM2_TRGO, TIM3_TRGO, TIM8_TRGO,},
+	{ TIM1_TRGO, TIM8_TRGO, TIM3_TRGO, TIM4_TRGO,},
+	{ }, /* timer 6 */
+	{ }, /* timer 7 */
+	{ TIM1_TRGO, TIM2_TRGO, TIM4_TRGO, TIM5_TRGO,},
+	{ }, /* timer 9 */
+	{ }, /* timer 10 */
+	{ }, /* timer 11 */
+	{ TIM4_TRGO, TIM5_TRGO,},
+	{ }, /* timer 13 */
+	{ }, /* timer 14 */
+	{ TIM1_TRGO, TIM3_TRGO,},
+};
+
 struct stm32_timer_trigger {
 	struct device *dev;
 	struct regmap *regmap;
@@ -59,6 +81,11 @@ struct stm32_timer_trigger {
 	bool has_trgo2;
 };
 
+struct stm32_timer_trigger_cfg {
+	const void *(*valids_table)[MAX_VALIDS];
+	const unsigned int num_valids_table;
+};
+
 static bool stm32_timer_is_trgo2_name(const char *name)
 {
 	return !!strstr(name, "trgo2");
@@ -734,18 +761,22 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct stm32_timer_trigger *priv;
 	struct stm32_timers *ddata = dev_get_drvdata(pdev->dev.parent);
+	const struct stm32_timer_trigger_cfg *cfg;
 	unsigned int index;
 	int ret;
 
 	if (of_property_read_u32(dev->of_node, "reg", &index))
 		return -EINVAL;
 
+	cfg = (const struct stm32_timer_trigger_cfg *)
+		of_match_device(dev->driver->of_match_table, dev)->data;
+
 	if (index >= ARRAY_SIZE(triggers_table) ||
-	    index >= ARRAY_SIZE(valids_table))
+	    index >= cfg->num_valids_table)
 		return -EINVAL;
 
 	/* Create an IIO device only if we have triggers to be validated */
-	if (*valids_table[index])
+	if (*cfg->valids_table[index])
 		priv = stm32_setup_counter_device(dev);
 	else
 		priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -758,7 +789,7 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
 	priv->clk = ddata->clk;
 	priv->max_arr = ddata->max_arr;
 	priv->triggers = triggers_table[index];
-	priv->valids = valids_table[index];
+	priv->valids = cfg->valids_table[index];
 	stm32_timer_detect_trgo2(priv);
 
 	ret = stm32_setup_iio_triggers(priv);
@@ -770,8 +801,24 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct stm32_timer_trigger_cfg stm32_timer_trg_cfg = {
+	.valids_table = valids_table,
+	.num_valids_table = ARRAY_SIZE(valids_table),
+};
+
+static const struct stm32_timer_trigger_cfg stm32h7_timer_trg_cfg = {
+	.valids_table = stm32h7_valids_table,
+	.num_valids_table = ARRAY_SIZE(stm32h7_valids_table),
+};
+
 static const struct of_device_id stm32_trig_of_match[] = {
-	{ .compatible = "st,stm32-timer-trigger", },
+	{
+		.compatible = "st,stm32-timer-trigger",
+		.data = (void *)&stm32_timer_trg_cfg,
+	}, {
+		.compatible = "st,stm32h7-timer-trigger",
+		.data = (void *)&stm32h7_timer_trg_cfg,
+	},
 	{ /* end node */ },
 };
 MODULE_DEVICE_TABLE(of, stm32_trig_of_match);
diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h
index fa7d786..20f4653 100644
--- a/include/linux/iio/timer/stm32-timer-trigger.h
+++ b/include/linux/iio/timer/stm32-timer-trigger.h
@@ -59,6 +59,8 @@
 #define TIM12_CH1	"tim12_ch1"
 #define TIM12_CH2	"tim12_ch2"
 
+#define TIM15_TRGO	"tim15_trgo"
+
 bool is_stm32_timer_trigger(struct iio_trigger *trig);
 
 #endif
-- 
1.9.1

Re: [PATCH 2/3] iio: trigger: stm32-timer: add support for STM32H7

[Jonathan Cameron]

On Thu, 3 Aug 2017 11:14:13 +0200
Fabrice Gasnier <fabrice.gasnier@st.com> wrote:

> Add support for STM32H7 timer triggers:
> - Add new valids_table
> - Introduce compatible, with configuration data
> - Extend up to 15 timers, available on STM32H7
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Applied to the togreg branch of iio.git and pushed out as testing.

Thanks,

Jonathan
> ---
>  drivers/iio/trigger/stm32-timer-trigger.c     | 55 +++++++++++++++++++++++++--
>  include/linux/iio/timer/stm32-timer-trigger.h |  2 +
>  2 files changed, 53 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
> index d22bc56..33890f9 100644
> --- a/drivers/iio/trigger/stm32-timer-trigger.c
> +++ b/drivers/iio/trigger/stm32-timer-trigger.c
> @@ -13,6 +13,7 @@
>  #include <linux/mfd/stm32-timers.h>
>  #include <linux/module.h>
>  #include <linux/platform_device.h>
> +#include <linux/of_device.h>
>  
>  #define MAX_TRIGGERS 7
>  #define MAX_VALIDS 5
> @@ -31,6 +32,9 @@
>  	{ }, /* timer 10 */
>  	{ }, /* timer 11 */
>  	{ TIM12_TRGO, TIM12_CH1, TIM12_CH2,},
> +	{ }, /* timer 13 */
> +	{ }, /* timer 14 */
> +	{ TIM15_TRGO,},
>  };
>  
>  /* List the triggers accepted by each timer */
> @@ -49,6 +53,24 @@
>  	{ TIM4_TRGO, TIM5_TRGO,},
>  };
>  
> +static const void *stm32h7_valids_table[][MAX_VALIDS] = {
> +	{ TIM15_TRGO, TIM2_TRGO, TIM3_TRGO, TIM4_TRGO,},
> +	{ TIM1_TRGO, TIM8_TRGO, TIM3_TRGO, TIM4_TRGO,},
> +	{ TIM1_TRGO, TIM2_TRGO, TIM15_TRGO, TIM4_TRGO,},
> +	{ TIM1_TRGO, TIM2_TRGO, TIM3_TRGO, TIM8_TRGO,},
> +	{ TIM1_TRGO, TIM8_TRGO, TIM3_TRGO, TIM4_TRGO,},
> +	{ }, /* timer 6 */
> +	{ }, /* timer 7 */
> +	{ TIM1_TRGO, TIM2_TRGO, TIM4_TRGO, TIM5_TRGO,},
> +	{ }, /* timer 9 */
> +	{ }, /* timer 10 */
> +	{ }, /* timer 11 */
> +	{ TIM4_TRGO, TIM5_TRGO,},
> +	{ }, /* timer 13 */
> +	{ }, /* timer 14 */
> +	{ TIM1_TRGO, TIM3_TRGO,},
> +};
> +
>  struct stm32_timer_trigger {
>  	struct device *dev;
>  	struct regmap *regmap;
> @@ -59,6 +81,11 @@ struct stm32_timer_trigger {
>  	bool has_trgo2;
>  };
>  
> +struct stm32_timer_trigger_cfg {
> +	const void *(*valids_table)[MAX_VALIDS];
> +	const unsigned int num_valids_table;
> +};
> +
>  static bool stm32_timer_is_trgo2_name(const char *name)
>  {
>  	return !!strstr(name, "trgo2");
> @@ -734,18 +761,22 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
>  	struct device *dev = &pdev->dev;
>  	struct stm32_timer_trigger *priv;
>  	struct stm32_timers *ddata = dev_get_drvdata(pdev->dev.parent);
> +	const struct stm32_timer_trigger_cfg *cfg;
>  	unsigned int index;
>  	int ret;
>  
>  	if (of_property_read_u32(dev->of_node, "reg", &index))
>  		return -EINVAL;
>  
> +	cfg = (const struct stm32_timer_trigger_cfg *)
> +		of_match_device(dev->driver->of_match_table, dev)->data;
> +
>  	if (index >= ARRAY_SIZE(triggers_table) ||
> -	    index >= ARRAY_SIZE(valids_table))
> +	    index >= cfg->num_valids_table)
>  		return -EINVAL;
>  
>  	/* Create an IIO device only if we have triggers to be validated */
> -	if (*valids_table[index])
> +	if (*cfg->valids_table[index])
>  		priv = stm32_setup_counter_device(dev);
>  	else
>  		priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
> @@ -758,7 +789,7 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
>  	priv->clk = ddata->clk;
>  	priv->max_arr = ddata->max_arr;
>  	priv->triggers = triggers_table[index];
> -	priv->valids = valids_table[index];
> +	priv->valids = cfg->valids_table[index];
>  	stm32_timer_detect_trgo2(priv);
>  
>  	ret = stm32_setup_iio_triggers(priv);
> @@ -770,8 +801,24 @@ static int stm32_timer_trigger_probe(struct platform_device *pdev)
>  	return 0;
>  }
>  
> +static const struct stm32_timer_trigger_cfg stm32_timer_trg_cfg = {
> +	.valids_table = valids_table,
> +	.num_valids_table = ARRAY_SIZE(valids_table),
> +};
> +
> +static const struct stm32_timer_trigger_cfg stm32h7_timer_trg_cfg = {
> +	.valids_table = stm32h7_valids_table,
> +	.num_valids_table = ARRAY_SIZE(stm32h7_valids_table),
> +};
> +
>  static const struct of_device_id stm32_trig_of_match[] = {
> -	{ .compatible = "st,stm32-timer-trigger", },
> +	{
> +		.compatible = "st,stm32-timer-trigger",
> +		.data = (void *)&stm32_timer_trg_cfg,
> +	}, {
> +		.compatible = "st,stm32h7-timer-trigger",
> +		.data = (void *)&stm32h7_timer_trg_cfg,
> +	},
>  	{ /* end node */ },
>  };
>  MODULE_DEVICE_TABLE(of, stm32_trig_of_match);
> diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h
> index fa7d786..20f4653 100644
> --- a/include/linux/iio/timer/stm32-timer-trigger.h
> +++ b/include/linux/iio/timer/stm32-timer-trigger.h
> @@ -59,6 +59,8 @@
>  #define TIM12_CH1	"tim12_ch1"
>  #define TIM12_CH2	"tim12_ch2"
>  
> +#define TIM15_TRGO	"tim15_trgo"
> +
>  bool is_stm32_timer_trigger(struct iio_trigger *trig);
>  
>  #endif

[PATCH 3/3] iio: trigger: stm32-timer: add output compare triggers

[Fabrice Gasnier]

Add output compare trigger sources available on some instances.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
 drivers/iio/trigger/stm32-timer-trigger.c     | 31 +++++++++++++++++----------
 include/linux/iio/timer/stm32-timer-trigger.h | 12 +++++++++++
 2 files changed, 32 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 33890f9..a9bc5b6 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -29,12 +29,14 @@
 	{ TIM7_TRGO,},
 	{ TIM8_TRGO, TIM8_TRGO2, TIM8_CH1, TIM8_CH2, TIM8_CH3, TIM8_CH4,},
 	{ TIM9_TRGO, TIM9_CH1, TIM9_CH2,},
-	{ }, /* timer 10 */
-	{ }, /* timer 11 */
+	{ TIM10_OC1,},
+	{ TIM11_OC1,},
 	{ TIM12_TRGO, TIM12_CH1, TIM12_CH2,},
-	{ }, /* timer 13 */
-	{ }, /* timer 14 */
+	{ TIM13_OC1,},
+	{ TIM14_OC1,},
 	{ TIM15_TRGO,},
+	{ TIM16_OC1,},
+	{ TIM17_OC1,},
 };
 
 /* List the triggers accepted by each timer */
@@ -47,10 +49,10 @@
 	{ }, /* timer 6 */
 	{ }, /* timer 7 */
 	{ TIM1_TRGO, TIM2_TRGO, TIM4_TRGO, TIM5_TRGO,},
-	{ TIM2_TRGO, TIM3_TRGO,},
+	{ TIM2_TRGO, TIM3_TRGO, TIM10_OC1, TIM11_OC1,},
 	{ }, /* timer 10 */
 	{ }, /* timer 11 */
-	{ TIM4_TRGO, TIM5_TRGO,},
+	{ TIM4_TRGO, TIM5_TRGO, TIM13_OC1, TIM14_OC1,},
 };
 
 static const void *stm32h7_valids_table[][MAX_VALIDS] = {
@@ -65,10 +67,12 @@
 	{ }, /* timer 9 */
 	{ }, /* timer 10 */
 	{ }, /* timer 11 */
-	{ TIM4_TRGO, TIM5_TRGO,},
+	{ TIM4_TRGO, TIM5_TRGO, TIM13_OC1, TIM14_OC1,},
 	{ }, /* timer 13 */
 	{ }, /* timer 14 */
-	{ TIM1_TRGO, TIM3_TRGO,},
+	{ TIM1_TRGO, TIM3_TRGO, TIM16_OC1, TIM17_OC1,},
+	{ }, /* timer 16 */
+	{ }, /* timer 17 */
 };
 
 struct stm32_timer_trigger {
@@ -91,6 +95,11 @@ static bool stm32_timer_is_trgo2_name(const char *name)
 	return !!strstr(name, "trgo2");
 }
 
+static bool stm32_timer_is_trgo_name(const char *name)
+{
+	return (!!strstr(name, "trgo") && !strstr(name, "trgo2"));
+}
+
 static int stm32_timer_start(struct stm32_timer_trigger *priv,
 			     struct iio_trigger *trig,
 			     unsigned int frequency)
@@ -355,6 +364,7 @@ static int stm32_setup_iio_triggers(struct stm32_timer_trigger *priv)
 
 	while (cur && *cur) {
 		struct iio_trigger *trig;
+		bool cur_is_trgo = stm32_timer_is_trgo_name(*cur);
 		bool cur_is_trgo2 = stm32_timer_is_trgo2_name(*cur);
 
 		if (cur_is_trgo2 && !priv->has_trgo2) {
@@ -371,10 +381,9 @@ static int stm32_setup_iio_triggers(struct stm32_timer_trigger *priv)
 
 		/*
 		 * sampling frequency and master mode attributes
-		 * should only be available on trgo trigger which
-		 * is always the first in the list.
+		 * should only be available on trgo/trgo2 triggers
 		 */
-		if (cur == priv->triggers || cur_is_trgo2)
+		if (cur_is_trgo || cur_is_trgo2)
 			trig->dev.groups = stm32_trigger_attr_groups;
 
 		iio_trigger_set_drvdata(trig, priv);
diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h
index 20f4653..d68add8 100644
--- a/include/linux/iio/timer/stm32-timer-trigger.h
+++ b/include/linux/iio/timer/stm32-timer-trigger.h
@@ -55,12 +55,24 @@
 #define TIM9_CH1	"tim9_ch1"
 #define TIM9_CH2	"tim9_ch2"
 
+#define TIM10_OC1	"tim10_oc1"
+
+#define TIM11_OC1	"tim11_oc1"
+
 #define TIM12_TRGO	"tim12_trgo"
 #define TIM12_CH1	"tim12_ch1"
 #define TIM12_CH2	"tim12_ch2"
 
+#define TIM13_OC1	"tim13_oc1"
+
+#define TIM14_OC1	"tim14_oc1"
+
 #define TIM15_TRGO	"tim15_trgo"
 
+#define TIM16_OC1	"tim16_oc1"
+
+#define TIM17_OC1	"tim17_oc1"
+
 bool is_stm32_timer_trigger(struct iio_trigger *trig);
 
 #endif
-- 
1.9.1

Re: [PATCH 3/3] iio: trigger: stm32-timer: add output compare triggers

[Jonathan Cameron]

On Thu, 3 Aug 2017 11:14:14 +0200
Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org> wrote:

> Add output compare trigger sources available on some instances.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier-qxv4g6HH51o@public.gmane.org>
Applied to the togreg branch of iio.git and pushed out as testing.

Thanks,

Jonathan
> ---
>  drivers/iio/trigger/stm32-timer-trigger.c     | 31 +++++++++++++++++----------
>  include/linux/iio/timer/stm32-timer-trigger.h | 12 +++++++++++
>  2 files changed, 32 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
> index 33890f9..a9bc5b6 100644
> --- a/drivers/iio/trigger/stm32-timer-trigger.c
> +++ b/drivers/iio/trigger/stm32-timer-trigger.c
> @@ -29,12 +29,14 @@
>  	{ TIM7_TRGO,},
>  	{ TIM8_TRGO, TIM8_TRGO2, TIM8_CH1, TIM8_CH2, TIM8_CH3, TIM8_CH4,},
>  	{ TIM9_TRGO, TIM9_CH1, TIM9_CH2,},
> -	{ }, /* timer 10 */
> -	{ }, /* timer 11 */
> +	{ TIM10_OC1,},
> +	{ TIM11_OC1,},
>  	{ TIM12_TRGO, TIM12_CH1, TIM12_CH2,},
> -	{ }, /* timer 13 */
> -	{ }, /* timer 14 */
> +	{ TIM13_OC1,},
> +	{ TIM14_OC1,},
>  	{ TIM15_TRGO,},
> +	{ TIM16_OC1,},
> +	{ TIM17_OC1,},
>  };
>  
>  /* List the triggers accepted by each timer */
> @@ -47,10 +49,10 @@
>  	{ }, /* timer 6 */
>  	{ }, /* timer 7 */
>  	{ TIM1_TRGO, TIM2_TRGO, TIM4_TRGO, TIM5_TRGO,},
> -	{ TIM2_TRGO, TIM3_TRGO,},
> +	{ TIM2_TRGO, TIM3_TRGO, TIM10_OC1, TIM11_OC1,},
>  	{ }, /* timer 10 */
>  	{ }, /* timer 11 */
> -	{ TIM4_TRGO, TIM5_TRGO,},
> +	{ TIM4_TRGO, TIM5_TRGO, TIM13_OC1, TIM14_OC1,},
>  };
>  
>  static const void *stm32h7_valids_table[][MAX_VALIDS] = {
> @@ -65,10 +67,12 @@
>  	{ }, /* timer 9 */
>  	{ }, /* timer 10 */
>  	{ }, /* timer 11 */
> -	{ TIM4_TRGO, TIM5_TRGO,},
> +	{ TIM4_TRGO, TIM5_TRGO, TIM13_OC1, TIM14_OC1,},
>  	{ }, /* timer 13 */
>  	{ }, /* timer 14 */
> -	{ TIM1_TRGO, TIM3_TRGO,},
> +	{ TIM1_TRGO, TIM3_TRGO, TIM16_OC1, TIM17_OC1,},
> +	{ }, /* timer 16 */
> +	{ }, /* timer 17 */
>  };
>  
>  struct stm32_timer_trigger {
> @@ -91,6 +95,11 @@ static bool stm32_timer_is_trgo2_name(const char *name)
>  	return !!strstr(name, "trgo2");
>  }
>  
> +static bool stm32_timer_is_trgo_name(const char *name)
> +{
> +	return (!!strstr(name, "trgo") && !strstr(name, "trgo2"));
> +}
> +
>  static int stm32_timer_start(struct stm32_timer_trigger *priv,
>  			     struct iio_trigger *trig,
>  			     unsigned int frequency)
> @@ -355,6 +364,7 @@ static int stm32_setup_iio_triggers(struct stm32_timer_trigger *priv)
>  
>  	while (cur && *cur) {
>  		struct iio_trigger *trig;
> +		bool cur_is_trgo = stm32_timer_is_trgo_name(*cur);
>  		bool cur_is_trgo2 = stm32_timer_is_trgo2_name(*cur);
>  
>  		if (cur_is_trgo2 && !priv->has_trgo2) {
> @@ -371,10 +381,9 @@ static int stm32_setup_iio_triggers(struct stm32_timer_trigger *priv)
>  
>  		/*
>  		 * sampling frequency and master mode attributes
> -		 * should only be available on trgo trigger which
> -		 * is always the first in the list.
> +		 * should only be available on trgo/trgo2 triggers
>  		 */
> -		if (cur == priv->triggers || cur_is_trgo2)
> +		if (cur_is_trgo || cur_is_trgo2)
>  			trig->dev.groups = stm32_trigger_attr_groups;
>  
>  		iio_trigger_set_drvdata(trig, priv);
> diff --git a/include/linux/iio/timer/stm32-timer-trigger.h b/include/linux/iio/timer/stm32-timer-trigger.h
> index 20f4653..d68add8 100644
> --- a/include/linux/iio/timer/stm32-timer-trigger.h
> +++ b/include/linux/iio/timer/stm32-timer-trigger.h
> @@ -55,12 +55,24 @@
>  #define TIM9_CH1	"tim9_ch1"
>  #define TIM9_CH2	"tim9_ch2"
>  
> +#define TIM10_OC1	"tim10_oc1"
> +
> +#define TIM11_OC1	"tim11_oc1"
> +
>  #define TIM12_TRGO	"tim12_trgo"
>  #define TIM12_CH1	"tim12_ch1"
>  #define TIM12_CH2	"tim12_ch2"
>  
> +#define TIM13_OC1	"tim13_oc1"
> +
> +#define TIM14_OC1	"tim14_oc1"
> +
>  #define TIM15_TRGO	"tim15_trgo"
>  
> +#define TIM16_OC1	"tim16_oc1"
> +
> +#define TIM17_OC1	"tim17_oc1"
> +
>  bool is_stm32_timer_trigger(struct iio_trigger *trig);
>  
>  #endif

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