diff options
| author | Mark Brown <broonie@kernel.org> | 2020-07-02 16:45:49 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-07-02 16:45:49 +0100 |
| commit | 8cc31dc941e264aaf7201963df4dea1a313b25e8 (patch) | |
| tree | 59b56550735f812fa0a3a85918d5d6e3372e0e2b /include/dt-bindings | |
| parent | c9b5e85aebeb66ec0b43e2cd771ea8cd690c11c1 (diff) | |
| parent | 347f12d573412cb7ba4781b58f42f0ca7eecde6d (diff) | |
| download | linux-8cc31dc941e264aaf7201963df4dea1a313b25e8.tar.bz2 | |
Merge series "regulator: mt6397: Implement of_map_mode regulator_desc function" from Anand K Mistry <amistry@google.com>:
This patchset adds support for being able to change regulator modes for
the mt6397 regulator. This is needed to allow the voltage scaling
support in the MT8173 SoC to be used on the elm (Acer Chromebook R13)
and hana (several Lenovo Chromebooks) devices.
Without a of_map_mode implementation, the regulator-allowed-modes
devicetree field is skipped, and attempting to change the regulator mode
results in an error:
[ 1.439165] vpca15: mode operation not allowed
Changes in v2:
- Introduce constants in dt-bindings
- Improve conditional readability
Anand K Mistry (4):
regulator: mt6397: Move buck modes into header file
dt-bindings: regulator: mt6397: Document valid modes
regulator: mt6397: Implement of_map_mode
arm64: dts: mediatek: Update allowed mt6397 regulator modes for elm
boards
.../bindings/regulator/mt6397-regulator.txt | 3 +++
arch/arm64/boot/dts/mediatek/mt8173-elm.dtsi | 4 +++-
drivers/regulator/mt6397-regulator.c | 17 ++++++++++++++---
.../regulator/mediatek,mt6397-regulator.h | 15 +++++++++++++++
4 files changed, 35 insertions(+), 4 deletions(-)
create mode 100644 include/dt-bindings/regulator/mediatek,mt6397-regulator.h
--
2.27.0.212.ge8ba1cc988-goog
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Diffstat (limited to 'include/dt-bindings')
| -rw-r--r-- | include/dt-bindings/regulator/mediatek,mt6397-regulator.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/dt-bindings/regulator/mediatek,mt6397-regulator.h b/include/dt-bindings/regulator/mediatek,mt6397-regulator.h new file mode 100644 index 000000000000..99869a8665cf --- /dev/null +++ b/include/dt-bindings/regulator/mediatek,mt6397-regulator.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _DT_BINDINGS_REGULATOR_MEDIATEK_MT6397_H_ +#define _DT_BINDINGS_REGULATOR_MEDIATEK_MT6397_H_ + +/* + * Buck mode constants which may be used in devicetree properties (eg. + * regulator-initial-mode, regulator-allowed-modes). + * See the manufacturer's datasheet for more information on these modes. + */ + +#define MT6397_BUCK_MODE_AUTO 0 +#define MT6397_BUCK_MODE_FORCE_PWM 1 + +#endif |