68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
From 1968a84bd7cfdf60b29a154e682c4239bdfe6cb7 Mon Sep 17 00:00:00 2001
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From: Philipp Rossak <embed3d@gmail.com>
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Date: Sun, 21 Jan 2018 23:14:09 +0100
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Subject: [PATCH 017/146] iio: adc: sun4i-gpadc-iio: add support for H3 thermal
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sensor
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This patch adds support for the H3 ths sensor.
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The H3 supports interrupts. The interrupt is configured to update the
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the sensor values every second. The calibration data is writen at the
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begin of the init process.
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Signed-off-by: Philipp Rossak <embed3d@gmail.com>
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---
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drivers/iio/adc/sun4i-gpadc-iio.c | 29 +++++++++++++++++++++++++++++
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1 file changed, 29 insertions(+)
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diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
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index 77e07f042730..f2e0ec65c53e 100644
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--- a/drivers/iio/adc/sun4i-gpadc-iio.c
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+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
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@@ -145,6 +145,31 @@ static const struct gpadc_data sun8i_a33_gpadc_data = {
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.support_irq = false,
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};
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+static const struct gpadc_data sun8i_h3_ths_data = {
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+ .temp_offset = -1791,
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+ .temp_scale = -121,
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+ .temp_data = {SUNXI_THS_TDATA0, 0, 0, 0},
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+ .sample_start = sunxi_ths_sample_start,
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+ .sample_end = sunxi_ths_sample_end,
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+ .has_bus_clk = true,
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+ .has_bus_rst = true,
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+ .has_mod_clk = true,
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+ .sensor_count = 1,
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+ .supports_nvmem = true,
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+ .support_irq = true,
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+ .ctrl0_map = SUNXI_THS_ACQ0(0xff),
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+ .ctrl2_map = SUNXI_THS_ACQ1(0x3f),
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+ .sensor_en_map = SUNXI_THS_TEMP_SENSE_EN0,
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+ .filter_map = SUNXI_THS_FILTER_EN |
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+ SUNXI_THS_FILTER_TYPE(0x2),
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+ .irq_clear_map = SUNXI_THS_INTS_ALARM_INT_0 |
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+ SUNXI_THS_INTS_SHUT_INT_0 |
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+ SUNXI_THS_INTS_TDATA_IRQ_0 |
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+ SUNXI_THS_INTS_ALARM_OFF_0,
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+ .irq_control_map = SUNXI_THS_INTC_TDATA_IRQ_EN0 |
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+ SUNXI_THS_TEMP_PERIOD(0x7),
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+};
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+
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struct sun4i_gpadc_iio {
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struct iio_dev *indio_dev;
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struct completion completion;
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@@ -643,6 +668,10 @@ static const struct of_device_id sun4i_gpadc_of_id[] = {
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.compatible = "allwinner,sun8i-a33-ths",
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.data = &sun8i_a33_gpadc_data,
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},
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+ {
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+ .compatible = "allwinner,sun8i-h3-ths",
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+ .data = &sun8i_h3_ths_data,
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+ },
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{ /* sentinel */ }
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};
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--
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2.17.1
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