Messages in this thread | | | From | Rafał Miłecki <> | Subject | [PATCH V2 0/2] Broadcom's PMB (Power Management Bus) support | Date | Mon, 14 Dec 2020 19:07:41 +0100 |
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From: Rafał Miłecki <rafal@milecki.pl>
PMB is a hardware block used for powering SoC devices like PCIe, USB, SATA. Initially I planned to treat it as a reset controller and Philipp pointed out in review that PMB driver should use a power subsystem.
This is my refactored support.
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Please note one difference when compared to the initial reset attempt.
As I store info about SoC devices in the driver now, I had to put support for multiple buses there. That's required to avoid things like:
compatible = "brcm,bcm4908-pmb-no-1"; compatible = "brcm,bcm4908-pmb-no-2";
So now a single "reg" covers bigger buses (e.g. 0x40) in size, see:
reg = <0x802800e0 0x40>;
Other SoCs my use something like:
reg = <0x802800e0 0x20>; reg = <0x802800e0 0x60>;
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AFAIU this should go through Florian's tree. I based in on top of the soc-arm64/next.
V2: Use drivers/soc/bcm/bcm63xx/ and add Kconfig help message
Rafał Miłecki (2): dt-bindings: power: document Broadcom's PMB binding soc: bcm: add PM driver for Broadcom's PMB
.../bindings/power/brcm,bcm-pmb.yaml | 50 +++ MAINTAINERS | 10 + drivers/soc/bcm/Makefile | 2 +- drivers/soc/bcm/bcm63xx/Kconfig | 9 + drivers/soc/bcm/bcm63xx/Makefile | 1 + drivers/soc/bcm/bcm63xx/bcm-pmb.c | 333 ++++++++++++++++++ include/dt-bindings/soc/bcm-pmb.h | 11 + 7 files changed, 415 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/power/brcm,bcm-pmb.yaml create mode 100644 drivers/soc/bcm/bcm63xx/bcm-pmb.c create mode 100644 include/dt-bindings/soc/bcm-pmb.h
-- 2.26.2
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