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* [PATCH 0/2] Remove unnecessary FIFO configurations
@ 2017-09-23 19:10 Lorenzo Bianconi
  2017-09-23 19:10 ` [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration Lorenzo Bianconi
  2017-09-23 19:10 ` [PATCH 2/2] iio: imu: st_lsm6dsx: remove rounding configuration Lorenzo Bianconi
  0 siblings, 2 replies; 6+ messages in thread
From: Lorenzo Bianconi @ 2017-09-23 19:10 UTC (permalink / raw)
  To: jic23; +Cc: linux-iio, lorenzo.bianconi

Lorenzo Bianconi (2):
  iio: imu: st_lsm6dsx: remove LIR configuration
  iio: imu: st_lsm6dsx: remove rounding configuration

 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 15 ---------------
 1 file changed, 15 deletions(-)

-- 
2.14.1

^ permalink raw reply	[flat|nested] 6+ messages in thread

* [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration
  2017-09-23 19:10 [PATCH 0/2] Remove unnecessary FIFO configurations Lorenzo Bianconi
@ 2017-09-23 19:10 ` Lorenzo Bianconi
  2017-09-24 15:50   ` Jonathan Cameron
  2017-09-23 19:10 ` [PATCH 2/2] iio: imu: st_lsm6dsx: remove rounding configuration Lorenzo Bianconi
  1 sibling, 1 reply; 6+ messages in thread
From: Lorenzo Bianconi @ 2017-09-23 19:10 UTC (permalink / raw)
  To: jic23; +Cc: linux-iio, lorenzo.bianconi

Remove Latched Interrupt configuration since it is enabled by default
for FIFO watermark interrupt

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index c68cc7c91928..37d6e324ae74 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -56,8 +56,6 @@
 #define ST_LSM6DSX_REG_INT2_ON_INT1_MASK	BIT(5)
 #define ST_LSM6DSX_REG_ROUNDING_ADDR		0x16
 #define ST_LSM6DSX_REG_ROUNDING_MASK		BIT(2)
-#define ST_LSM6DSX_REG_LIR_ADDR			0x58
-#define ST_LSM6DSX_REG_LIR_MASK			BIT(0)
 
 #define ST_LSM6DSX_REG_ACC_ODR_ADDR		0x10
 #define ST_LSM6DSX_REG_ACC_ODR_MASK		GENMASK(7, 4)
@@ -607,12 +605,6 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
 
 	msleep(200);
 
-	/* latch interrupts */
-	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_LIR_ADDR,
-					 ST_LSM6DSX_REG_LIR_MASK, 1);
-	if (err < 0)
-		return err;
-
 	/* enable Block Data Update */
 	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_BDU_ADDR,
 					 ST_LSM6DSX_REG_BDU_MASK, 1);
-- 
2.14.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* [PATCH 2/2] iio: imu: st_lsm6dsx: remove rounding configuration
  2017-09-23 19:10 [PATCH 0/2] Remove unnecessary FIFO configurations Lorenzo Bianconi
  2017-09-23 19:10 ` [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration Lorenzo Bianconi
@ 2017-09-23 19:10 ` Lorenzo Bianconi
  2017-09-24 15:50   ` Jonathan Cameron
  1 sibling, 1 reply; 6+ messages in thread
From: Lorenzo Bianconi @ 2017-09-23 19:10 UTC (permalink / raw)
  To: jic23; +Cc: linux-iio, lorenzo.bianconi

Remove rounding configuration since it is enabled by default for the
FIFO output registers

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
---
 drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 37d6e324ae74..debf4064f474 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -54,8 +54,6 @@
 #define ST_LSM6DSX_REG_BDU_MASK			BIT(6)
 #define ST_LSM6DSX_REG_INT2_ON_INT1_ADDR	0x13
 #define ST_LSM6DSX_REG_INT2_ON_INT1_MASK	BIT(5)
-#define ST_LSM6DSX_REG_ROUNDING_ADDR		0x16
-#define ST_LSM6DSX_REG_ROUNDING_MASK		BIT(2)
 
 #define ST_LSM6DSX_REG_ACC_ODR_ADDR		0x10
 #define ST_LSM6DSX_REG_ACC_ODR_MASK		GENMASK(7, 4)
@@ -611,11 +609,6 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
 	if (err < 0)
 		return err;
 
-	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_ROUNDING_ADDR,
-					 ST_LSM6DSX_REG_ROUNDING_MASK, 1);
-	if (err < 0)
-		return err;
-
 	/* enable FIFO watermak interrupt */
 	err = st_lsm6dsx_get_drdy_reg(hw, &drdy_int_reg);
 	if (err < 0)
-- 
2.14.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration
  2017-09-23 19:10 ` [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration Lorenzo Bianconi
@ 2017-09-24 15:50   ` Jonathan Cameron
  2017-09-25  7:37     ` Lorenzo Bianconi
  0 siblings, 1 reply; 6+ messages in thread
From: Jonathan Cameron @ 2017-09-24 15:50 UTC (permalink / raw)
  To: Lorenzo Bianconi; +Cc: linux-iio, lorenzo.bianconi

On Sat, 23 Sep 2017 21:10:51 +0200
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> wrote:

> Remove Latched Interrupt configuration since it is enabled by default
> for FIFO watermark interrupt
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>

Not the most detailed explanation ever of a change, but I guess it
suffices (just!)

Applied to the togreg branch of iio.git and pushed out as testing for
the autobuilders to play with it.

Thanks,

Jonathan

> ---
>  drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 8 --------
>  1 file changed, 8 deletions(-)
> 
> diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> index c68cc7c91928..37d6e324ae74 100644
> --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> @@ -56,8 +56,6 @@
>  #define ST_LSM6DSX_REG_INT2_ON_INT1_MASK	BIT(5)
>  #define ST_LSM6DSX_REG_ROUNDING_ADDR		0x16
>  #define ST_LSM6DSX_REG_ROUNDING_MASK		BIT(2)
> -#define ST_LSM6DSX_REG_LIR_ADDR			0x58
> -#define ST_LSM6DSX_REG_LIR_MASK			BIT(0)
>  
>  #define ST_LSM6DSX_REG_ACC_ODR_ADDR		0x10
>  #define ST_LSM6DSX_REG_ACC_ODR_MASK		GENMASK(7, 4)
> @@ -607,12 +605,6 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
>  
>  	msleep(200);
>  
> -	/* latch interrupts */
> -	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_LIR_ADDR,
> -					 ST_LSM6DSX_REG_LIR_MASK, 1);
> -	if (err < 0)
> -		return err;
> -
>  	/* enable Block Data Update */
>  	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_BDU_ADDR,
>  					 ST_LSM6DSX_REG_BDU_MASK, 1);


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 2/2] iio: imu: st_lsm6dsx: remove rounding configuration
  2017-09-23 19:10 ` [PATCH 2/2] iio: imu: st_lsm6dsx: remove rounding configuration Lorenzo Bianconi
@ 2017-09-24 15:50   ` Jonathan Cameron
  0 siblings, 0 replies; 6+ messages in thread
From: Jonathan Cameron @ 2017-09-24 15:50 UTC (permalink / raw)
  To: Lorenzo Bianconi; +Cc: linux-iio, lorenzo.bianconi

On Sat, 23 Sep 2017 21:10:52 +0200
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> wrote:

> Remove rounding configuration since it is enabled by default for the
> FIFO output registers
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>

Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 7 -------
>  1 file changed, 7 deletions(-)
> 
> diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> index 37d6e324ae74..debf4064f474 100644
> --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> @@ -54,8 +54,6 @@
>  #define ST_LSM6DSX_REG_BDU_MASK			BIT(6)
>  #define ST_LSM6DSX_REG_INT2_ON_INT1_ADDR	0x13
>  #define ST_LSM6DSX_REG_INT2_ON_INT1_MASK	BIT(5)
> -#define ST_LSM6DSX_REG_ROUNDING_ADDR		0x16
> -#define ST_LSM6DSX_REG_ROUNDING_MASK		BIT(2)
>  
>  #define ST_LSM6DSX_REG_ACC_ODR_ADDR		0x10
>  #define ST_LSM6DSX_REG_ACC_ODR_MASK		GENMASK(7, 4)
> @@ -611,11 +609,6 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
>  	if (err < 0)
>  		return err;
>  
> -	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_ROUNDING_ADDR,
> -					 ST_LSM6DSX_REG_ROUNDING_MASK, 1);
> -	if (err < 0)
> -		return err;
> -
>  	/* enable FIFO watermak interrupt */
>  	err = st_lsm6dsx_get_drdy_reg(hw, &drdy_int_reg);
>  	if (err < 0)


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration
  2017-09-24 15:50   ` Jonathan Cameron
@ 2017-09-25  7:37     ` Lorenzo Bianconi
  0 siblings, 0 replies; 6+ messages in thread
From: Lorenzo Bianconi @ 2017-09-25  7:37 UTC (permalink / raw)
  To: Jonathan Cameron; +Cc: linux-iio, Lorenzo BIANCONI

> On Sat, 23 Sep 2017 21:10:51 +0200
> Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> wrote:
>
>> Remove Latched Interrupt configuration since it is enabled by default
>> for FIFO watermark interrupt
>>
>> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
>
> Not the most detailed explanation ever of a change, but I guess it
> suffices (just!)

Ack, sorry :)
Watermark interrupt rises when the number of bytes written in FIFO is
equal or grater than the watermark level and it is reset when number
of samples is lower than that threshold.
Consequently the is no need to configure latched mode for that interrupt source.

Regards,
Lorenzo


>
> Applied to the togreg branch of iio.git and pushed out as testing for
> the autobuilders to play with it.
>
> Thanks,
>
> Jonathan
>
>> ---
>>  drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 8 --------
>>  1 file changed, 8 deletions(-)
>>
>> diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
>> index c68cc7c91928..37d6e324ae74 100644
>> --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
>> +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
>> @@ -56,8 +56,6 @@
>>  #define ST_LSM6DSX_REG_INT2_ON_INT1_MASK     BIT(5)
>>  #define ST_LSM6DSX_REG_ROUNDING_ADDR         0x16
>>  #define ST_LSM6DSX_REG_ROUNDING_MASK         BIT(2)
>> -#define ST_LSM6DSX_REG_LIR_ADDR                      0x58
>> -#define ST_LSM6DSX_REG_LIR_MASK                      BIT(0)
>>
>>  #define ST_LSM6DSX_REG_ACC_ODR_ADDR          0x10
>>  #define ST_LSM6DSX_REG_ACC_ODR_MASK          GENMASK(7, 4)
>> @@ -607,12 +605,6 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
>>
>>       msleep(200);
>>
>> -     /* latch interrupts */
>> -     err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_LIR_ADDR,
>> -                                      ST_LSM6DSX_REG_LIR_MASK, 1);
>> -     if (err < 0)
>> -             return err;
>> -
>>       /* enable Block Data Update */
>>       err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_BDU_ADDR,
>>                                        ST_LSM6DSX_REG_BDU_MASK, 1);
>



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umount; make clean; sleep

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2017-09-25  7:37 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-09-23 19:10 [PATCH 0/2] Remove unnecessary FIFO configurations Lorenzo Bianconi
2017-09-23 19:10 ` [PATCH 1/2] iio: imu: st_lsm6dsx: remove LIR configuration Lorenzo Bianconi
2017-09-24 15:50   ` Jonathan Cameron
2017-09-25  7:37     ` Lorenzo Bianconi
2017-09-23 19:10 ` [PATCH 2/2] iio: imu: st_lsm6dsx: remove rounding configuration Lorenzo Bianconi
2017-09-24 15:50   ` Jonathan Cameron

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