This patch adds support for the A83T ths sensor.
The A83T supports interrupts. The interrupt is configured to update the
the sensor values every second.
Signed-off-by: Philipp Rossak <embed3d@xxxxxxxxx>
---
drivers/iio/adc/sun4i-gpadc-iio.c | 38 ++++++++++++++++++++++++++++++++++++++
include/linux/mfd/sun4i-gpadc.h | 18 ++++++++++++++++++
2 files changed, 56 insertions(+)
diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index 8196203d65fe..9f7895ba1966 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 = {
SUN8I_H3_THS_TEMP_PERIOD(0x7),
};
+static const struct gpadc_data sun8i_a83t_ths_data = {
+ .temp_offset = -2724,
+ .temp_scale = -70,
+ .temp_data = {SUN8I_H3_THS_TDATA0,
+ SUN8I_A83T_THS_TDATA1,
+ SUN8I_A83T_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 = SUN4I_GPADC_CTRL0_T_ACQ(0x1f3),
+ .ctrl2_map = SUN8I_H3_THS_ACQ1(0x1f3),
+ .sensor_en_map = SUN8I_H3_THS_TEMP_SENSE_EN0 |
+ SUN8I_A83T_THS_TEMP_SENSE_EN1 |
+ SUN8I_A83T_THS_TEMP_SENSE_EN2,
+ .filter_map = SUN4I_GPADC_CTRL3_FILTER_EN |
+ SUN4I_GPADC_CTRL3_FILTER_TYPE(0x2),
+ .irq_clear_map = SUN8I_H3_THS_INTS_ALARM_INT_0 |
+ SUN8I_A83T_THS_INTS_ALARM_INT_1 |
+ SUN8I_A83T_THS_INTS_ALARM_INT_2 |
+ SUN8I_H3_THS_INTS_SHUT_INT_0 |
+ SUN8I_A83T_THS_INTS_SHUT_INT_1 |
+ SUN8I_A83T_THS_INTS_SHUT_INT_2 |
+ SUN8I_H3_THS_INTS_TDATA_IRQ_0 |
+ SUN8I_A83T_THS_INTS_TDATA_IRQ_1 |
+ SUN8I_A83T_THS_INTS_TDATA_IRQ_2,
+ .irq_control_map = SUN8I_H3_THS_INTC_TDATA_IRQ_EN0 |
+ SUN8I_A83T_THS_INTC_TDATA_IRQ_EN1 |
+ SUN8I_A83T_THS_INTC_TDATA_IRQ_EN2 |
+ SUN8I_H3_THS_TEMP_PERIOD(0x257),
+};
+
struct sun4i_gpadc_iio {
struct iio_dev *indio_dev;
struct completion completion;
@@ -668,6 +702,10 @@ 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 */ }
};
diff --git a/include/linux/mfd/sun4i-gpadc.h b/include/linux/mfd/sun4i-gpadc.h
index 80b79c31cea3..32f15cc03363 100644
--- a/include/linux/mfd/sun4i-gpadc.h
+++ b/include/linux/mfd/sun4i-gpadc.h
@@ -99,21 +99,39 @@
#define SUNXI_THS_CDATA_0_1 0x74
#define SUNXI_THS_CDATA_2_3 0x78
#define SUN8I_H3_THS_TDATA0 0x80
+#define SUN8I_A83T_THS_TDATA1 0x84
+#define SUN8I_A83T_THS_TDATA2 0x88
#define SUN8I_H3_THS_ACQ1(x) (GENMASK(31, 16) & ((x) << 16))
#define SUN8I_H3_THS_TEMP_SENSE_EN0 BIT(0)
+#define SUN8I_A83T_THS_TEMP_SENSE_EN1 BIT(1)
+#define SUN8I_A83T_THS_TEMP_SENSE_EN2 BIT(2)
#define SUN8I_H3_THS_TEMP_PERIOD(x) (GENMASK(31, 12) & ((x) << 12))
#define SUN8I_H3_THS_INTS_ALARM_INT_0 BIT(0)
+#define SUN8I_A83T_THS_INTS_ALARM_INT_1 BIT(1)
+#define SUN8I_A83T_THS_INTS_ALARM_INT_2 BIT(2)
#define SUN8I_H3_THS_INTS_SHUT_INT_0 BIT(4)
+#define SUN8I_A83T_THS_INTS_SHUT_INT_1 BIT(5)
+#define SUN8I_A83T_THS_INTS_SHUT_INT_2 BIT(6)
#define SUN8I_H3_THS_INTS_TDATA_IRQ_0 BIT(8)
+#define SUN8I_A83T_THS_INTS_TDATA_IRQ_1 BIT(9)
+#define SUN8I_A83T_THS_INTS_TDATA_IRQ_2 BIT(10)
#define SUN8I_H3_THS_INTS_ALARM_OFF_0 BIT(12)
+#define SUN8I_A83T_THS_INTS_ALARM_OFF_1 BIT(13)
+#define SUN8I_A83T_THS_INTS_ALARM_OFF_2 BIT(14)
#define SUN8I_H3_THS_INTC_ALARM_INT_EN0 BIT(0)
+#define SUN8I_A83T_THS_INTC_ALARM_INT_EN1 BIT(1)
+#define SUN8I_A83T_THS_INTC_ALARM_INT_EN2 BIT(2)
#define SUN8I_H3_THS_INTC_SHUT_INT_EN0 BIT(4)
+#define SUN8I_A83T_THS_INTC_SHUT_INT_EN1 BIT(5)
+#define SUN8I_A83T_THS_INTC_SHUT_INT_EN2 BIT(6)
#define SUN8I_H3_THS_INTC_TDATA_IRQ_EN0 BIT(8)
+#define SUN8I_A83T_THS_INTC_TDATA_IRQ_EN1 BIT(9)
+#define SUN8I_A83T_THS_INTC_TDATA_IRQ_EN2 BIT(10)
#define MAX_SENSOR_COUNT 4
--
2.11.0
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