linux-kernel - [PATCH 09/16] iio: adc: sun4i-gpadc-iio: add support for H3 thermal sensor

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20180126151941.12183-10-embed3d@gmail.com>
Date:   Fri, 26 Jan 2018 16:19:34 +0100
From:   Philipp Rossak <embed3d@...il.com>
To:     lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        maxime.ripard@...e-electrons.com, wens@...e.org,
        linux@...linux.org.uk, jic23@...nel.org, knaack.h@....de,
        lars@...afoo.de, pmeerw@...erw.net, davem@...emloft.net,
        hans.verkuil@...co.com, mchehab@...nel.org, rask@...melder.dk,
        clabbe.montjoie@...il.com, sean@...s.org, krzk@...nel.org,
        quentin.schulz@...e-electrons.com, icenowy@...c.io,
        edu.molinas@...il.com, singhalsimran0@...il.com
Cc:     linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: [PATCH 09/16] iio: adc: sun4i-gpadc-iio: add support for 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 <embed3d@...il.com>
---
 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 77e07f042730..f2e0ec65c53e 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -145,6 +145,31 @@ 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;
@@ -643,6 +668,10 @@ 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 */ }
 };
 
-- 
2.11.0