From de4aca1fa2bb6f400b84c8c056163c1fde854da4 Mon Sep 17 00:00:00 2001 From: Philipp Rossak Date: Sun, 21 Jan 2018 23:14:09 +0100 Subject: [PATCH 025/170] drv:iio:adc: sun4i-gpadc-iio: add H3 thermal sensor This patch adds support for the H3 ths sensor. The H3 supports interrupts. The interrupt is configured to update the the sensor values every second. The calibration data is writen at the begin of the init process. Signed-off-by: Philipp Rossak --- drivers/iio/adc/sun4i-gpadc-iio.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c index 6424ec19e..77199f230 100644 --- a/drivers/iio/adc/sun4i-gpadc-iio.c +++ b/drivers/iio/adc/sun4i-gpadc-iio.c @@ -142,6 +142,31 @@ static const struct gpadc_data sun8i_a33_gpadc_data = { .support_irq = false, }; +static const struct gpadc_data sun8i_h3_ths_data = { + .temp_offset = -1791, + .temp_scale = -121, + .temp_data = {SUNXI_THS_TDATA0, 0, 0, 0}, + .sample_start = sunxi_ths_sample_start, + .sample_end = sunxi_ths_sample_end, + .has_bus_clk = true, + .has_bus_rst = true, + .has_mod_clk = true, + .sensor_count = 1, + .supports_nvmem = true, + .support_irq = true, + .ctrl0_map = SUNXI_THS_ACQ0(0xff), + .ctrl2_map = SUNXI_THS_ACQ1(0x3f), + .sensor_en_map = SUNXI_THS_TEMP_SENSE_EN0, + .filter_map = SUNXI_THS_FILTER_EN | + SUNXI_THS_FILTER_TYPE(0x2), + .irq_clear_map = SUNXI_THS_INTS_ALARM_INT_0 | + SUNXI_THS_INTS_SHUT_INT_0 | + SUNXI_THS_INTS_TDATA_IRQ_0 | + SUNXI_THS_INTS_ALARM_OFF_0, + .irq_control_map = SUNXI_THS_INTC_TDATA_IRQ_EN0 | + SUNXI_THS_TEMP_PERIOD(0x7), +}; + struct sun4i_gpadc_iio { struct iio_dev *indio_dev; struct completion completion; @@ -638,6 +663,10 @@ static const struct of_device_id sun4i_gpadc_of_id[] = { .compatible = "allwinner,sun8i-a33-ths", .data = &sun8i_a33_gpadc_data, }, + { + .compatible = "allwinner,sun8i-h3-ths", + .data = &sun8i_h3_ths_data, + }, { /* sentinel */ } }; -- 2.35.3