• Nicolin Chen's avatar
    hwmon: (ina3221) Read channel input source info from DT · a9e9dd9c
    Nicolin Chen authored
    An ina3221 chip has three input ports. Each port is used
    to measure the voltage and current of its input source.
    
    The DT binding now has defined bindings for their input
    sources, so the driver should read these information and
    handle accordingly.
    
    This patch adds a new structure of input source specific
    information including input source label, shunt resistor
    value and its connection status. It exposes these labels
    via in[123]_label sysfs nodes upon available, and also
    disables those channels where there are no input source
    being connected. Meanwhile, it also adds in[123]_enable
    sysfs nodes for users to get control of three channels,
    and returns -ENODATA code for any sensor read according
    to hwmon ABI.
    Signed-off-by: default avatarNicolin Chen <nicoleotsuka@gmail.com>
    Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
    a9e9dd9c
ina3221 1.45 KB