This adds support for RK806, only the SPI variant has been tested.
The communication "protocol" over SPI is the following:
- write three bytes:
- 1 byte: [0:3] length of the payload, [6] Enable CRC, [7] Write
- 1 byte: LSB register address
- 1 byte: MSB register address
- write/read length of payload
The CRC is always disabled for now.
The RK806 technically supports I2C as well, and this should be able to
support it without any change, but it wasn't tested.
The DT node name prefix for the buck converters has changed in the
Device Tree and is now dcdc-reg. The logic for buck converters is
however manageable within the current logic inside the rk8xx regulator
driver. The same cannot be said for the NLDO and PLDO.
Because pmic_bind_children() parses the DT nodes and extracts the LDO
index from the DT node name, NLDO and PLDO will have overlapping
indices. Therefore, we need a separate logic from the already-existing
ldo callbacks. Let's reuse as much as possible though.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Those two functions had their last user removed in commit f9c68a566c
("rockchip: phycore_rk3288: remove phycore_init() function") part of
v2023.01 release, so let's do some cleanup here.
Cc: Quentin Schulz <foss+uboot@0leil.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
For Rockchip boards with the all rk8xx series PMICs (excluding the
rk808), it is sometimes desirable to not boot whenever the device is
plugged in. An example would be for the Odroid Go Advance.
This provides a configurable option to check the PMIC says it was
powered because of a plug-in event. If the value is 1 and this option
is selected, the device shuts down shortly after printing a message
to console stating the reason why it's shutting down. Powering up the
board with the power button is not affected.
This patch parallels the work done in the following patch series:
https://lore.kernel.org/u-boot/20220121133732.2397273-1-andre.przywara@arm.com/
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
The RK809 is a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
- Regulators(5*BUCKs, 9*LDOs, 2*SWITCHes)
- RTC
- Clocking
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The RK817 is a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
- Regulators(4*BUCKs, 1* BOOST, 9*LDOs, 1*SWITCH)
- RTC
- Clocking
Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The RK805 are a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
- Regulators(4*BUCKs, 3*LDOs)
- RTC
- Clocking
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
The RK816 is a Power Management IC (PMIC) for multimedia
and handheld devices. They contains the following components:
- Regulators(4*BUCKs, 1*BOOST, 6*LDOs, 1*SWITCH)
- RTC
- Clocking
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
The RK818 PMIC contains a charger. Add very basic charger functionality
to be able to regulate the USB input current and charger shutdown limits.
Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Since this driver can be used for rk8xx series pmic,
let's rename rk808 to rk8xx, to make it clear.
Configs parts are done by sed -i "s/RK808/RK8XX/g" `grep RK808 -lr ./`
Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
2017-05-10 13:37:22 -06:00
Renamed from include/power/rk808_pmic.h (Browse further)
