[PATCH 2/3] hwmon: Driver for OMAP3 temperature sensor
From: Pavel Machek <hidden>
Date: 2014-12-27 19:58:30
Also in:
linux-devicetree, linux-omap, lkml
On Fri 2014-12-26 13:34:53, Sebastian Reichel wrote:
OMAP34xx and OMAP36xx processors contain a register in the syscon area, which can be used to determine the SoCs temperature. This patch provides a DT based driver for the temperature sensor based on an older driver written by Peter De Schrijver for the Nokia N900 and N9. Signed-off-by: Sebastian Reichel <sre@kernel.org> --- drivers/hwmon/Kconfig | 8 ++ drivers/hwmon/Makefile | 1 + drivers/hwmon/omap3-temp.c | 307 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 316 insertions(+) create mode 100644 drivers/hwmon/omap3-temp.c
When it hangs, it loops here:
do {
regmap_read(data->syscon, SYSCON_TEMP_REG,&temp_sensor_reg);
if ((temp_sensor_reg & eocz_mask) == level)
return true;
printk("=");
}
while (ktime_us_delta(expire, ktime_get()) > 0);
Pavel
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