diff options
| author |  Jishnu Prakash <jprakash@codeaurora.org>
| 2020-05-28 22:24:24 +0530 |
|---|---|---|
| committer |  Jonathan Cameron <Jonathan.Cameron@huawei.com>
| 2020-06-14 11:49:18 +0100 |
| commit | d1492bbd470280c687e6677a355f923435bdb3ac (patch) | |
| tree | 690b4b09916975663a52e50867201d8997528662 /include/dt-bindings/iio/qcom,spmi-adc7-pmr735a.h | |
| parent | iio: adc: Convert the QCOM SPMI ADC bindings to .yaml format (diff) | |
| download | linux-d1492bbd470280c687e6677a355f923435bdb3ac.tar.gz linux-d1492bbd470280c687e6677a355f923435bdb3ac.tar.bz2 linux-d1492bbd470280c687e6677a355f923435bdb3ac.zip | |
iio: adc: Add PMIC7 ADC bindings
Add documentation for PMIC7 ADC peripheral.
For the PMIC7-type PMICs, ADC peripheral is present in HW for the
following PMICs: PMK8350, PM8350, PM8350b, PMR735a and PMR735b.
Of these, only the ADC peripheral on PMK8350 is exposed directly to SW.
If SW needs to communicate with ADCs on other PMICs, it specifies the
PMIC to PMK8350 through the newly added SID register and communication
between PMK8350 ADC and other PMIC ADCs is carried out through
PBS(Programmable Boot Sequence) at the firmware level.
In addition, add definitions for ADC channels and virtual channel
definitions (combination of ADC channel number and PMIC SID number)
per PMIC, to be used by ADC clients for PMIC7.
Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/dt-bindings/iio/qcom,spmi-adc7-pmr735a.h')
| -rw-r--r-- | include/dt-bindings/iio/qcom,spmi-adc7-pmr735a.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/dt-bindings/iio/qcom,spmi-adc7-pmr735a.h b/include/dt-bindings/iio/qcom,spmi-adc7-pmr735a.h new file mode 100644 index 000000000000..d6df1b19e5ff --- /dev/null +++ b/include/dt-bindings/iio/qcom,spmi-adc7-pmr735a.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2020 The Linux Foundation. All rights reserved. + */ + +#ifndef _DT_BINDINGS_QCOM_SPMI_VADC_PMR735A_H +#define _DT_BINDINGS_QCOM_SPMI_VADC_PMR735A_H + +#ifndef PMR735A_SID +#define PMR735A_SID 4 +#endif + +/* ADC channels for PMR735A_ADC for PMIC7 */ +#define PMR735A_ADC7_REF_GND (PMR735A_SID << 8 | 0x0) +#define PMR735A_ADC7_1P25VREF (PMR735A_SID << 8 | 0x01) +#define PMR735A_ADC7_VREF_VADC (PMR735A_SID << 8 | 0x02) +#define PMR735A_ADC7_DIE_TEMP (PMR735A_SID << 8 | 0x03) + +#define PMR735A_ADC7_GPIO1 (PMR735A_SID << 8 | 0x0a) +#define PMR735A_ADC7_GPIO2 (PMR735A_SID << 8 | 0x0b) +#define PMR735A_ADC7_GPIO3 (PMR735A_SID << 8 | 0x0c) + +/* 100k pull-up2 */ +#define PMR735A_ADC7_GPIO1_100K_PU (PMR735A_SID << 8 | 0x4a) +#define PMR735A_ADC7_GPIO2_100K_PU (PMR735A_SID << 8 | 0x4b) +#define PMR735A_ADC7_GPIO3_100K_PU (PMR735A_SID << 8 | 0x4c) + +#endif /* _DT_BINDINGS_QCOM_SPMI_VADC_PMR735A_H */ |