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From:   Sarannya S <quic_sarannya@quicinc.com>
To:     <quic_bjorande@quicinc.com>, <arnaud.pouliquen@foss.st.com>,
        <swboyd@chromium.org>, <quic_clew@quicinc.com>,
        <mathieu.poirier@linaro.org>
CC:     <linux-kernel@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
        <linux-remoteproc@vger.kernel.org>,
        Sarannya S <sarannya@qti.qualcomm.com>
Subject: [PATCH V9 0/3] rpmsg signaling/flowcontrol patches
Date:   Fri, 7 Jul 2023 03:11:35 +0530
Message-ID: <1688679698-31274-1-git-send-email-quic_sarannya@quicinc.com>
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From: Sarannya S <sarannya@qti.qualcomm.com>

Changes from V8:
* Updated the argument for RPMSG_SET_INCOMING_FLOWCONTROL to int.
* Return -EINVAL if arg > 1 in RPMSG_SET_INCOMING_FLOWCONTROL.

Key changes from earlier revisions:
* Added two new RPMSG IOCTLs for rpmsg_char- RPMSG_GET_SIGNAL_IOCTRL and RPMSG_SET_SIGNAL_IOCTRL, to set/get the flow.
* Updated the cmd name 'RPM_CMD_SIGNALS' to 'GLINK_CMD_SIGNALS'.
* Return EOPNOTSUPP error in rpmsg_set_flow_control(), if the backend does not support flow control ops.
* For rpmsg_set_flow_control, change "EXPORT_SYMBOL" to "EXPORT_SYMBOL_GPL".
* Change return type of qcom_glink_handle_signals() from int to void.
* Added destination address of the endpoint as parameter in rpmsg_set_flow_control.
* Changed 'remote_flow' to bool type, and updated it's evaluation.
* Updated evaluation of 'set' in rpmsg_char as 'set = !!arg'.

Chris Lew (2):
  rpmsg: glink: Add support to handle signals command
  rpmsg: char: Add RPMSG GET/SET FLOWCONTROL IOCTL support

Deepak Kumar Singh (1):
  rpmsg: core: Add signal API support

 drivers/rpmsg/qcom_glink_native.c | 56 +++++++++++++++++++++++++++++++++++++++
 drivers/rpmsg/rpmsg_char.c        | 54 ++++++++++++++++++++++++++++++++-----
 drivers/rpmsg/rpmsg_core.c        | 21 +++++++++++++++
 drivers/rpmsg/rpmsg_internal.h    |  2 ++
 include/linux/rpmsg.h             | 15 +++++++++++
 include/uapi/linux/rpmsg.h        | 10 +++++++
 6 files changed, 152 insertions(+), 6 deletions(-)

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