linux-kernel - [PATCH V1 0/3] Add Data Capture and Compare(DCC) driver to new location

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Message-ID: <cover.1681480351.git.quic_schowdhu@quicinc.com>
Date:   Fri, 14 Apr 2023 19:29:10 +0530
From:   Souradeep Chowdhury <quic_schowdhu@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, Alex Elder <elder@...e.org>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, Sibi Sankar <quic_sibis@...cinc.com>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Souradeep Chowdhury <quic_schowdhu@...cinc.com>
Subject: [PATCH V1 0/3] Add Data Capture and Compare(DCC) driver to new location

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@builder.lan/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

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2.7.4