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

[Philipp Rossak]

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 <embe...@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

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Thanks,
Philipp