Re: [PATCH 2/3] hwmon: Driver for OMAP3 temperature sensor
From: Pavel Machek <hidden>
Date: 2014-12-27 19:24:36
Also in:
linux-arm-kernel, linux-omap, lkml
Hi!
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>
I did clk_enable -> clk_prepare_enable conversion, as described in another email. I got occasional error reading: root@n900:~# cat /sys/class/hwmon/hwmon0/device/temp_input 20.0 root@n900:~# cat /sys/class/hwmon/hwmon0/device/temp_input cat: /sys/class/hwmon/hwmon0/device/temp_input: Input/output error root@n900:~# cat /sys/class/hwmon/hwmon0/device/temp_input 20.0 Nothing in dmesg. It takes few tries to reproduce.. On other attempt, it hung hard: root@n900:~# cat /sys/class/hwmon/hwmon0/device/temp_input ; cat /sys/class/hwmon/hwmon0/device/temp_input ;cat /sys/class/hwmon/hwmon0/device/temp_input ; cat /sys/class/hwmon/hwmon0/device/temp_input 17.0 17.0 ^[[A ^Z ^C^C^C Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html