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iio: magnetometer: ak8975: add AK09116 support

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Add additional AK09116 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.

Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Link: https://lore.kernel.org/r/20210825020738.35877-1-matt.ranostay@konsulko.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Matt Ranostay 2021-08-25 05:07:38 +03:00 committed by Jonathan Cameron
parent c5dc9e3635
commit 76e28aa97f
3 changed files with 38 additions and 1 deletions
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2
Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
View File

@ -17,11 +17,13 @@ properties:
- asahi-kasei,ak8963
- asahi-kasei,ak09911
- asahi-kasei,ak09912
- asahi-kasei,ak09916
- enum:
- ak8975
- ak8963
- ak09911
- ak09912
- ak09916
deprecated: true
reg:

2
drivers/iio/magnetometer/Kconfig
View File

@ -28,7 +28,7 @@ config AK8975
select IIO_TRIGGERED_BUFFER
help
Say yes here to build support for Asahi Kasei AK8975, AK8963,
AK09911 or AK09912 3-Axis Magnetometer.
AK09911, AK09912 or AK09916 3-Axis Magnetometer.
To compile this driver as a module, choose M here: the module
will be called ak8975.

35
drivers/iio/magnetometer/ak8975.c
View File

@ -78,6 +78,7 @@
*/
#define AK09912_REG_WIA1 0x00
#define AK09912_REG_WIA2 0x01
#define AK09916_DEVICE_ID 0x09
#define AK09912_DEVICE_ID 0x04
#define AK09911_DEVICE_ID 0x05
@ -208,6 +209,7 @@ enum asahi_compass_chipset {
AK8963,
AK09911,
AK09912,
AK09916,
};
enum ak_ctrl_reg_addr {
@ -345,6 +347,31 @@ static const struct ak_def ak_def_array[] = {
AK09912_REG_HXL,
AK09912_REG_HYL,
AK09912_REG_HZL},
},
{
.type = AK09916,
.raw_to_gauss = ak09912_raw_to_gauss,
.range = 32752,
.ctrl_regs = {
AK09912_REG_ST1,
AK09912_REG_ST2,
AK09912_REG_CNTL2,
AK09912_REG_ASAX,
AK09912_MAX_REGS},
.ctrl_masks = {
AK09912_REG_ST1_DRDY_MASK,
AK09912_REG_ST2_HOFL_MASK,
0,
AK09912_REG_CNTL2_MODE_MASK},
.ctrl_modes = {
AK09912_REG_CNTL_MODE_POWER_DOWN,
AK09912_REG_CNTL_MODE_ONCE,
AK09912_REG_CNTL_MODE_SELF_TEST,
AK09912_REG_CNTL_MODE_FUSE_ROM},
.data_regs = {
AK09912_REG_HXL,
AK09912_REG_HYL,
AK09912_REG_HZL},
}
};
@ -425,6 +452,7 @@ static int ak8975_who_i_am(struct i2c_client *client,
/*
* Signature for each device:
* Device | WIA1 | WIA2
* AK09916 | DEVICE_ID_| AK09916_DEVICE_ID
* AK09912 | DEVICE_ID | AK09912_DEVICE_ID
* AK09911 | DEVICE_ID | AK09911_DEVICE_ID
* AK8975 | DEVICE_ID | NA
@ -452,6 +480,10 @@ static int ak8975_who_i_am(struct i2c_client *client,
if (wia_val[1] == AK09912_DEVICE_ID)
return 0;
break;
case AK09916:
if (wia_val[1] == AK09916_DEVICE_ID)
return 0;
break;
default:
dev_err(&client->dev, "Type %d unknown\n", type);
}
@ -1057,6 +1089,7 @@ static const struct i2c_device_id ak8975_id[] = {
{"AK8963", AK8963},
{"ak09911", AK09911},
{"ak09912", AK09912},
{"ak09916", AK09916},
{}
};
@ -1071,6 +1104,8 @@ static const struct of_device_id ak8975_of_match[] = {
{ .compatible = "ak09911", },
{ .compatible = "asahi-kasei,ak09912", },
{ .compatible = "ak09912", },
{ .compatible = "asahi-kasei,ak09916", },
{ .compatible = "ak09916", },
{}
};
MODULE_DEVICE_TABLE(of, ak8975_of_match);