[PATCH v2 10/16] iio: adc: sun4i-gpadc-iio: add support for A83T thermal sensor
From: Maxime Ripard <hidden>
Date: 2018-01-29 09:48:16
Also in:
linux-devicetree, linux-iio, lkml
On Mon, Jan 29, 2018 at 12:29:13AM +0100, Philipp Rossak wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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),
Where are these values coming from?
+ .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,
Do you reall need to clear all these interrupts if you're using only one? Maxime -- Maxime Ripard, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: not available URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20180129/f288319c/attachment.sig>