A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

firmware: arm_scmi: fetch and store sensor scale

Browse source 
In preparation for dealing with scales within the SCMI HWMON driver,
fetch and store the sensor unit scale into the scmi_sensor_info
structure. In order to simplify computations for upper layer, take care
of sign extending the scale to a full 8-bit signed value.

Reviewed-by: Guenter Roeck <[email protected]>
Signed-off-by: Florian Fainelli <[email protected]>
[sudeep.holla: update bitfield values as per specification]
Signed-off-by: Sudeep Holla <[email protected]>
This commit is contained in:
Florian Fainelli 2019-05-08 11:46:34 -07:00 • committed by Sudeep Holla
commit 0b673b6486
2 changed files with 7 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

6
drivers/firmware/arm_scmi/sensors.c
View file

@ -34,6 +34,8 @@ struct scmi_msg_resp_sensor_description {
__le32 attributes_high;
#define SENSOR_TYPE(x) ((x) & 0xff)
#define SENSOR_SCALE(x) (((x) >> 11) & 0x1f)
#define SENSOR_SCALE_SIGN BIT(4)
#define SENSOR_SCALE_EXTEND GENMASK(7, 5)
#define SENSOR_UPDATE_SCALE(x) (((x) >> 22) & 0x1f)
#define SENSOR_UPDATE_BASE(x) (((x) >> 27) & 0x1f)
u8 name[SCMI_MAX_STR_SIZE];
@ -140,6 +142,10 @@ static int scmi_sensor_description_get(const struct scmi_handle *handle,
s = &si->sensors[desc_index + cnt];
s->id = le32_to_cpu(buf->desc[cnt].id);
s->type = SENSOR_TYPE(attrh);
s->scale = SENSOR_SCALE(attrh);
/* Sign extend to a full s8 */
if (s->scale & SENSOR_SCALE_SIGN)
s->scale |= SENSOR_SCALE_EXTEND;
strlcpy(s->name, buf->desc[cnt].name, SCMI_MAX_STR_SIZE);
}