Create DT binding document for blkoops. Signed-off-by: liaoweixiong <liaoweixiong@xxxxxxxxxxxxxxxxx> --- .../devicetree/bindings/pstore-block/blkoops.txt | 32 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/pstore-block/blkoops.txt diff --git a/Documentation/devicetree/bindings/pstore-block/blkoops.txt b/Documentation/devicetree/bindings/pstore-block/blkoops.txt new file mode 100644 index 0000000..a25835b --- /dev/null +++ b/Documentation/devicetree/bindings/pstore-block/blkoops.txt @@ -0,0 +1,32 @@ +Blkoops oops logger +=================== + +Blkoops provides a block partition for oops, excluding panics now, so they can +be recovered after a reboot. + +Any space of block partition will be used for a circular buffer of oops records. +These records have a configurable size, with a size of 0 indicating that they +should be disabled. + +"partition-size" and at least one of "dmesg-size" or "pmsg-size" must be set +non-zero, but are otherwise optional as listed below. + +Blkoops will take value from Kconfig if device tree do not set, but settings +from module parameters can also overwrite them. + +Required properties: + +- compatible: must be "blkoops". + +- partition-size: size in kbytes, must be a multiple of 4. + +Optional properties: + +- partition-path: strings must begin with "/dev", tell blkoops which partition + it can used. If it is not set, blkoops will drop all data when reboot. + +- dmesg-size: maximum size in kbytes of each dump done on oops, which must be a + multiple of 4. + +- pmsg-size: maximum size in kbytes for userspace messages, which must be a + multiple of 4. diff --git a/MAINTAINERS b/MAINTAINERS index 0abecc5..91c70df 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12055,6 +12055,7 @@ F: drivers/firmware/efi/efi-pstore.c F: drivers/acpi/apei/erst.c F: Documentation/admin-guide/ramoops.rst F: Documentation/devicetree/bindings/reserved-memory/ramoops.txt +F: Documentation/devicetree/bindings/pstore-block/ K: \b(pstore|ramoops) PTP HARDWARE CLOCK SUPPORT -- 1.9.1
