xref: /OK3568_Linux_fs/kernel/Documentation/hwmon/abx500.rst (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunKernel driver abx500
2*4882a593Smuzhiyun====================
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunSupported chips:
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun  * ST-Ericsson ABx500 series
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun    Prefix: 'abx500'
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun    Addresses scanned: -
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun    Datasheet: http://www.stericsson.com/developers/documentation.jsp
13*4882a593Smuzhiyun
14*4882a593SmuzhiyunAuthors:
15*4882a593Smuzhiyun	Martin Persson <martin.persson@stericsson.com>
16*4882a593Smuzhiyun	Hongbo Zhang <hongbo.zhang@linaro.org>
17*4882a593Smuzhiyun
18*4882a593SmuzhiyunDescription
19*4882a593Smuzhiyun-----------
20*4882a593Smuzhiyun
21*4882a593SmuzhiyunEvery ST-Ericsson Ux500 SOC consists of both ABx500 and DBx500 physically,
22*4882a593Smuzhiyunthis is kernel hwmon driver for ABx500.
23*4882a593Smuzhiyun
24*4882a593SmuzhiyunThere are some GPADCs inside ABx500 which are designed for connecting to
25*4882a593Smuzhiyunthermal sensors, and there is also a thermal sensor inside ABx500 too, which
26*4882a593Smuzhiyunraises interrupt when critical temperature reached.
27*4882a593Smuzhiyun
28*4882a593SmuzhiyunThis abx500 is a common layer which can monitor all of the sensors, every
29*4882a593Smuzhiyunspecific abx500 chip has its special configurations in its own file, e.g. some
30*4882a593Smuzhiyunsensors can be configured invisible if they are not available on that chip, and
31*4882a593Smuzhiyunthe corresponding gpadc_addr should be set to 0, thus this sensor won't be
32*4882a593Smuzhiyunpolled.
33