bcm63xx/u-boot/doc/device-tree-bindings/regulator, branch master

regulator: Add support for ramp delay

2019-03-11T06:53:19Z

Changing voltage and enabling regulator might require delays so the regulator stabilizes at expected level. Add support for "regulator-ramp-delay" binding which can introduce required time to both enabling the regulator and to changing the voltage. Signed-off-by: Krzysztof Kozlowski Tested-by: Anand Moon Signed-off-by: Minkyu Kang

power: add FAN53555 family support

2018-12-10T09:04:45Z

This adds a driver for the FAN53555 family of regulators and wraps it in a PMIC implementation. While these devices support a 'normal' and 'suspend' mode (controlled via an external pin) to switch between two programmable voltages, this incarnation of the driver assumes that the device is always operating in 'normal' mode. Only setting/reading the programmed voltage is supported at this time and the following device functionality remains unsupported: - switching the selected voltage (via a GPIO) - disabling the voltage output via software-control This matches the functionality of the Linux driver. Tested on a RK3399-Q7 (with 'option 5' devices): setting voltages from the U-Boot shell and verifying output voltages on the board. Signed-off-by: Philipp Tomsich Tested-by: Klaus Goger

drivers: regulator: fixed: add u-boot, off-on-delay-us

2018-08-20T00:38:39Z

Add u-boot,off-on-delay-us for fixed regulator. Depends on board design, the gpio regulator sometimes connects with a big capacitance. When need to off, then on the regulator, if there is no enough delay, the voltage does not drop to 0, so introduce this property to handle such case. Signed-off-by: Peng Fan Reviewed-by: Simon Glass Cc: Masahiro Yamada

power: regulator: Add support for stm32-vrefbuf

2018-05-08T13:07:39Z

Add regulator driver for STM32 voltage reference buffer which can be used as voltage reference for ADCs, DACs and external components through dedicated VREF+ pin. Signed-off-by: Fabrice Gasnier Signed-off-by: Patrice Chotard

power: extend prefix match to regulator-name property

2017-12-13T02:53:45Z

This patch extends pmic_bind_children prefix matching. In addition to the node name the property regulator-name is used while trying to match prefixes. This allows assigning different drivers to regulator nodes named regulator@1 and regulator@10 for example. I have discarded the idea of using other properties then regulator-name as I do not see any benefit in using property compatible or even regulator-compatible. Of course I am open to change this if there are good reasons to do so. Signed-off-by: Felix Brack Reviewed-by: Simon Glass

doc: Fix statements on case sensitivity for regulator prefix

2017-10-06T15:28:17Z

The regulator bindings state that regulator prefixes are allowd to be in upper or lower case. However pmic_bind_children from pmic_uclass uses strncmp to compare DT node name against prefix. This comparison is case sensitive hence the regulator driver prefix case matters. Signed-off-by: Felix Brack

regulator: fixed: Add support to handle enable-active-high DT property

2016-12-27T13:22:57Z

Add support to handle enable-active-high DT property. This property is used to drive the gpio controlling fixed regulator as active high when claiming gpio line. Signed-off-by: Vignesh R Acked-by: Simon Glass

regulator: fixed: obey startup delay

2016-09-06T17:18:21Z

When enabling a fixed regulator, it may take some time to rise to the correct voltage. If we do not delay here then subsequent operations will fail. Signed-off-by: John Keeping Reviewed-by: Tom Rini Reviewed-by: Simon Glass

power: regulator: update comments for regulator-name

2015-08-12T08:03:04Z

We do not need that "regulator-name" property must be provided in dts. If "regulator-name" property is not provided in dts, node name will chosen for settings '.name' field of uc_pdata. Signed-off-by: Peng Fan Cc: Przemyslaw Marczak Cc: Simon Glass

sandbox: add: sandbox PMIC device drivers: I2C emul, pmic, regulator

2015-05-15T01:58:34Z

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 Acked-by: Simon Glass Tested on sandbox: Tested-by: Simon Glass