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| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2015-05-13 13:38:32 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-05-14 19:58:34 -0600 |
| commit | 5d387d0df9816cdf05d7bce3b7379057068a7e58 (patch) | |
| tree | fdb07e7f1beb9cc1afe1b1653298f33b4d57eb3c /drivers/power/pmic/Kconfig | |
| parent | a989ec8dd4bb548708220146391d5ed7b575331f (diff) | |
| download | talos-obmc-uboot-5d387d0df9816cdf05d7bce3b7379057068a7e58.tar.gz talos-obmc-uboot-5d387d0df9816cdf05d7bce3b7379057068a7e58.zip | |
sandbox: add: sandbox PMIC device drivers: I2C emul, pmic, regulator
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>
Diffstat (limited to 'drivers/power/pmic/Kconfig')
| -rw-r--r-- | drivers/power/pmic/Kconfig | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index d99d9e3a06..164f42143f 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -16,3 +16,28 @@ config DM_PMIC_MAX77686 ---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 |
