mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 10:48:51 +00:00
5d387d0df9
This commit adds emulation of sandbox PMIC device, which includes: - PMIC I2C emulation driver - PMIC I/O driver (UCLASS_PMIC) - PMIC regulator driver (UCLASS_REGULATOR) The sandbox PMIC has 12 significant registers and 4 as padding to 16 bytes, which allows using 'i2c md' command with the default count (16). The sandbox PMIC provides regulators: - 2x BUCK - 2x LDO Each, with adjustable output: - Enable state - Voltage - Current limit (LDO1/BUCK1 only) - Operation mode (different for BUCK and LDO) Each attribute has it's own register, beside the enable state, which depends on operation mode. The header file: sandbox_pmic.h includes PMIC's default register values, which are set on i2c pmic emul driver's probe() method. Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Tested on sandbox: Tested-by: Simon Glass <sjg@chromium.org>
43 lines
1.5 KiB
Text
43 lines
1.5 KiB
Text
config DM_PMIC
|
|
bool "Enable Driver Model for PMIC drivers (UCLASS_PMIC)"
|
|
depends on DM
|
|
---help---
|
|
This config enables the driver-model PMIC support.
|
|
UCLASS_PMIC - designed to provide an I/O interface for PMIC devices.
|
|
For the multi-function PMIC devices, this can be used as parent I/O
|
|
device for each IC's interface. Then, each children uses its parent
|
|
for read/write. For detailed description, please refer to the files:
|
|
- 'drivers/power/pmic/pmic-uclass.c'
|
|
- 'include/power/pmic.h'
|
|
|
|
config DM_PMIC_MAX77686
|
|
bool "Enable Driver Model for PMIC MAX77686"
|
|
depends on DM_PMIC
|
|
---help---
|
|
This config enables implementation of driver-model pmic uclass features
|
|
for PMIC MAX77686. The driver implements read/write operations.
|
|
|
|
config DM_PMIC_SANDBOX
|
|
bool "Enable Driver Model for emulated Sandbox PMIC "
|
|
depends on DM_PMIC
|
|
---help---
|
|
Enable the driver for Sandbox PMIC emulation. The emulated PMIC device
|
|
depends on two drivers:
|
|
- sandbox PMIC I/O driver - implements dm pmic operations
|
|
- sandbox PMIC i2c emul driver - emulates the PMIC's I2C transmission
|
|
|
|
A detailed information can be found in header: '<power/sandbox_pmic.h>'
|
|
|
|
The Sandbox PMIC info:
|
|
* I/O interface:
|
|
- I2C chip address: 0x40
|
|
- first register address: 0x0
|
|
- register count: 0x10
|
|
* Adjustable outputs:
|
|
- 2x LDO
|
|
- 2x BUCK
|
|
- Each, with a different operating conditions (header).
|
|
* Reset values:
|
|
- set by i2c emul driver's probe() (defaults in header)
|
|
|
|
Driver binding info: doc/device-tree-bindings/pmic/sandbox.txt
|