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[10/16] iio: adc: sun4i-gpadc-iio: add support for A83T thermal sensor

Message ID 20180126151941.12183-11-embed3d@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Philipp Rossak Jan. 26, 2018, 3:19 p.m. UTC
This patch adds support for the A83T ths sensor.

The A83T does not support interrupts. This seems to be broken.
The calibration data is writen at the begin of the init process.

Signed-off-by: Philipp Rossak <embed3d@gmail.com>
---
 drivers/iio/adc/sun4i-gpadc-iio.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

Comments

Ondřej Jirman Jan. 26, 2018, 5:46 p.m. UTC | #1
Hi,

On Fri, Jan 26, 2018 at 04:19:35PM +0100, Philipp Rossak wrote:
> This patch adds support for the A83T ths sensor.
> 
> The A83T does not support interrupts. This seems to be broken.

Though, you use support_irq = true below. And in my tests, IRQ for THS works on
A83T.

regards,
  o.

> The calibration data is writen at the begin of the init process.
> 
> Signed-off-by: Philipp Rossak <embed3d@gmail.com>
> ---
>  drivers/iio/adc/sun4i-gpadc-iio.c | 38 ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 38 insertions(+)
> 
> diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
> index f2e0ec65c53e..b8693afcdbea 100644
> --- a/drivers/iio/adc/sun4i-gpadc-iio.c
> +++ b/drivers/iio/adc/sun4i-gpadc-iio.c
> @@ -170,6 +170,40 @@ static const struct gpadc_data sun8i_h3_ths_data = {
>  		SUNXI_THS_TEMP_PERIOD(0x7),
>  };
>  
> +static const struct gpadc_data sun8i_a83t_ths_data = {
> +	.temp_offset = -2724,
> +	.temp_scale = -70,
> +	.temp_data = {SUNXI_THS_TDATA0,
> +		SUNXI_THS_TDATA1,
> +		SUNXI_THS_TDATA2,
> +		0},
> +	.sample_start = sunxi_ths_sample_start,
> +	.sample_end = sunxi_ths_sample_end,
> +	.sensor_count = 3,
> +	.supports_nvmem = false,
> +	.support_irq = true,
> +	.ctrl0_map = SUNXI_THS_ACQ0(0x1f3),
> +	.ctrl2_map = SUNXI_THS_ACQ1(0x1f3),
> +	.sensor_en_map = SUNXI_THS_TEMP_SENSE_EN0 |
> +		SUNXI_THS_TEMP_SENSE_EN1 |
> +		SUNXI_THS_TEMP_SENSE_EN2,
> +	.filter_map = SUNXI_THS_FILTER_EN |
> +		SUNXI_THS_FILTER_TYPE(0x2),
> +	.irq_clear_map = SUNXI_THS_INTS_ALARM_INT_0 |
> +		SUNXI_THS_INTS_ALARM_INT_1 |
> +		SUNXI_THS_INTS_ALARM_INT_2 |
> +		SUNXI_THS_INTS_SHUT_INT_0  |
> +		SUNXI_THS_INTS_SHUT_INT_1  |
> +		SUNXI_THS_INTS_SHUT_INT_2  |
> +		SUNXI_THS_INTS_TDATA_IRQ_0 |
> +		SUNXI_THS_INTS_TDATA_IRQ_1 |
> +		SUNXI_THS_INTS_TDATA_IRQ_2,
> +	.irq_control_map = SUNXI_THS_INTC_TDATA_IRQ_EN0 |
> +		SUNXI_THS_INTC_TDATA_IRQ_EN1 |
> +		SUNXI_THS_INTC_TDATA_IRQ_EN2 |
> +		SUNXI_THS_TEMP_PERIOD(0x257),
> +};
> +
>  struct sun4i_gpadc_iio {
>  	struct iio_dev			*indio_dev;
>  	struct completion		completion;
> @@ -672,6 +706,10 @@ static const struct of_device_id sun4i_gpadc_of_id[] = {
>  		.compatible = "allwinner,sun8i-h3-ths",
>  		.data = &sun8i_h3_ths_data,
>  	},
> +	{
> +		.compatible = "allwinner,sun8i-a83t-ths",
> +		.data = &sun8i_a83t_ths_data,
> +	},
>  	{ /* sentinel */ }
>  };
>  
> -- 
> 2.11.0
> 
> -- 
> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe@googlegroups.com.
> For more options, visit https://groups.google.com/d/optout.
Philipp Rossak Jan. 27, 2018, 4:30 a.m. UTC | #2
On 26.01.2018 18:46, Ondřej Jirman wrote:
> Hi,
> 
> On Fri, Jan 26, 2018 at 04:19:35PM +0100, Philipp Rossak wrote:
>> This patch adds support for the A83T ths sensor.
>>
>> The A83T does not support interrupts. This seems to be broken.
> 
> Though, you use support_irq = true below. And in my tests, IRQ for THS works on
> A83T.
> 
> regards,
>    o.

Oh I totally forgot to update this commit message, after I fixed the 
devicetree and got it running.
I will fix that in the next version of this patch series.

>> The calibration data is writen at the begin of the init process.
>>
>> Signed-off-by: Philipp Rossak <embed3d@gmail.com>
>> ---
>>   drivers/iio/adc/sun4i-gpadc-iio.c | 38 ++++++++++++++++++++++++++++++++++++++
>>   1 file changed, 38 insertions(+)
>>
>> diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
>> index f2e0ec65c53e..b8693afcdbea 100644
>> --- a/drivers/iio/adc/sun4i-gpadc-iio.c
>> +++ b/drivers/iio/adc/sun4i-gpadc-iio.c
>> @@ -170,6 +170,40 @@ static const struct gpadc_data sun8i_h3_ths_data = {
>>   		SUNXI_THS_TEMP_PERIOD(0x7),
>>   };
>>   
>> +static const struct gpadc_data sun8i_a83t_ths_data = {
>> +	.temp_offset = -2724,
>> +	.temp_scale = -70,
>> +	.temp_data = {SUNXI_THS_TDATA0,
>> +		SUNXI_THS_TDATA1,
>> +		SUNXI_THS_TDATA2,
>> +		0},
>> +	.sample_start = sunxi_ths_sample_start,
>> +	.sample_end = sunxi_ths_sample_end,
>> +	.sensor_count = 3,
>> +	.supports_nvmem = false,
>> +	.support_irq = true,
>> +	.ctrl0_map = SUNXI_THS_ACQ0(0x1f3),
>> +	.ctrl2_map = SUNXI_THS_ACQ1(0x1f3),
>> +	.sensor_en_map = SUNXI_THS_TEMP_SENSE_EN0 |
>> +		SUNXI_THS_TEMP_SENSE_EN1 |
>> +		SUNXI_THS_TEMP_SENSE_EN2,
>> +	.filter_map = SUNXI_THS_FILTER_EN |
>> +		SUNXI_THS_FILTER_TYPE(0x2),
>> +	.irq_clear_map = SUNXI_THS_INTS_ALARM_INT_0 |
>> +		SUNXI_THS_INTS_ALARM_INT_1 |
>> +		SUNXI_THS_INTS_ALARM_INT_2 |
>> +		SUNXI_THS_INTS_SHUT_INT_0  |
>> +		SUNXI_THS_INTS_SHUT_INT_1  |
>> +		SUNXI_THS_INTS_SHUT_INT_2  |
>> +		SUNXI_THS_INTS_TDATA_IRQ_0 |
>> +		SUNXI_THS_INTS_TDATA_IRQ_1 |
>> +		SUNXI_THS_INTS_TDATA_IRQ_2,
>> +	.irq_control_map = SUNXI_THS_INTC_TDATA_IRQ_EN0 |
>> +		SUNXI_THS_INTC_TDATA_IRQ_EN1 |
>> +		SUNXI_THS_INTC_TDATA_IRQ_EN2 |
>> +		SUNXI_THS_TEMP_PERIOD(0x257),
>> +};
>> +
>>   struct sun4i_gpadc_iio {
>>   	struct iio_dev			*indio_dev;
>>   	struct completion		completion;
>> @@ -672,6 +706,10 @@ static const struct of_device_id sun4i_gpadc_of_id[] = {
>>   		.compatible = "allwinner,sun8i-h3-ths",
>>   		.data = &sun8i_h3_ths_data,
>>   	},
>> +	{
>> +		.compatible = "allwinner,sun8i-a83t-ths",
>> +		.data = &sun8i_a83t_ths_data,
>> +	},
>>   	{ /* sentinel */ }
>>   };
>>   
>> -- 
>> 2.11.0
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups "linux-sunxi" group.
>> To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscribe@googlegroups.com.
>> For more options, visit https://groups.google.com/d/optout.

Thanks,
Philipp
diff mbox

Patch

diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index f2e0ec65c53e..b8693afcdbea 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -170,6 +170,40 @@  static const struct gpadc_data sun8i_h3_ths_data = {
 		SUNXI_THS_TEMP_PERIOD(0x7),
 };
 
+static const struct gpadc_data sun8i_a83t_ths_data = {
+	.temp_offset = -2724,
+	.temp_scale = -70,
+	.temp_data = {SUNXI_THS_TDATA0,
+		SUNXI_THS_TDATA1,
+		SUNXI_THS_TDATA2,
+		0},
+	.sample_start = sunxi_ths_sample_start,
+	.sample_end = sunxi_ths_sample_end,
+	.sensor_count = 3,
+	.supports_nvmem = false,
+	.support_irq = true,
+	.ctrl0_map = SUNXI_THS_ACQ0(0x1f3),
+	.ctrl2_map = SUNXI_THS_ACQ1(0x1f3),
+	.sensor_en_map = SUNXI_THS_TEMP_SENSE_EN0 |
+		SUNXI_THS_TEMP_SENSE_EN1 |
+		SUNXI_THS_TEMP_SENSE_EN2,
+	.filter_map = SUNXI_THS_FILTER_EN |
+		SUNXI_THS_FILTER_TYPE(0x2),
+	.irq_clear_map = SUNXI_THS_INTS_ALARM_INT_0 |
+		SUNXI_THS_INTS_ALARM_INT_1 |
+		SUNXI_THS_INTS_ALARM_INT_2 |
+		SUNXI_THS_INTS_SHUT_INT_0  |
+		SUNXI_THS_INTS_SHUT_INT_1  |
+		SUNXI_THS_INTS_SHUT_INT_2  |
+		SUNXI_THS_INTS_TDATA_IRQ_0 |
+		SUNXI_THS_INTS_TDATA_IRQ_1 |
+		SUNXI_THS_INTS_TDATA_IRQ_2,
+	.irq_control_map = SUNXI_THS_INTC_TDATA_IRQ_EN0 |
+		SUNXI_THS_INTC_TDATA_IRQ_EN1 |
+		SUNXI_THS_INTC_TDATA_IRQ_EN2 |
+		SUNXI_THS_TEMP_PERIOD(0x257),
+};
+
 struct sun4i_gpadc_iio {
 	struct iio_dev			*indio_dev;
 	struct completion		completion;
@@ -672,6 +706,10 @@  static const struct of_device_id sun4i_gpadc_of_id[] = {
 		.compatible = "allwinner,sun8i-h3-ths",
 		.data = &sun8i_h3_ths_data,
 	},
+	{
+		.compatible = "allwinner,sun8i-a83t-ths",
+		.data = &sun8i_a83t_ths_data,
+	},
 	{ /* sentinel */ }
 };