DCC(Data Capture and Compare) is a DMA engine designed for debugging purposes. In case of a system crash or manual software triggers by the user the DCC hardware stores the value at the register addresses which can be used for debugging purposes. The DCC driver provides the user with debugfs interface to configure the register addresses. The options that the DCC hardware provides include reading from registers, writing to registers, first reading and then writing to registers and looping through the values of the same register. This patch series is a continuation of the previous series https://lore.kernel.org/linux-arm-kernel/20221228172825.r32vpphbdulaldvv@xxxxxxxxxxx/T/ The dcc driver is moved to a new location drivers/misc along with the binding as per discussions. Souradeep Chowdhury (3): dt-bindings: misc: qcom,dcc: Add the dtschema drivers: misc: dcc: Add driver support for Data Capture and Compare unit(DCC) MAINTAINERS: Add the entry for DCC(Data Capture and Compare) driver support .../devicetree/bindings/misc/qcom,dcc.yaml | 44 + MAINTAINERS | 8 + drivers/misc/Kconfig | 8 + drivers/misc/Makefile | 1 + drivers/misc/dcc.c | 1305 ++++++++++++++++++++ 5 files changed, 1366 insertions(+) create mode 100644 Documentation/devicetree/bindings/misc/qcom,dcc.yaml create mode 100644 drivers/misc/dcc.c -- 2.7.4
