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SubjectRe: [RESEND PATCH V4 0/4] Add TIOCM Signals support for RPMSG char devices
On Wed, May 13, 2020 at 10:41:07AM +0530, Arun Kumar Neelakantam wrote:
> Glink transport support signals to exchange state notification between
> local and remote side clients. Adding support to send/receive the signal
> command and notify the clients through callback and POLL notification.

From a general point of view it is hard to have an understanding of what this
patchset does and if it is the right solution due to a lack of context.

The cover letter and changelogs are sparse to a point where a
reviewer not familiar with the QC/Glink implementation can't offer much more
than syntactic comments.

Thanks,
Mathieu

>
> Changes since v3:
> - Correct the TICOMGET case handling as per new rpmsg_get_signals prototype
> - Update the rpmsg_get_signals function header
>
> Changes since v2:
> - Modify the rpmsg_get_signals function prototype
>
> Changes since v1:
> - Split the patches as per functional areas like core, char, glink
> - Add set, clear mask for TIOCMSET
> - Merge the char signal callback and POLLPRI patches
>
> Arun Kumar Neelakantam (4):
> rpmsg: core: Add signal API support
> rpmsg: glink: Add support to handle signals command
> rpmsg: char: Add TIOCMGET/TIOCMSET ioctl support
> rpmsg: char: Add signal callback and POLLPRI support
>
> drivers/rpmsg/qcom_glink_native.c | 126 ++++++++++++++++++++++++++++++++++++++
> drivers/rpmsg/rpmsg_char.c | 75 ++++++++++++++++++++++-
> drivers/rpmsg/rpmsg_core.c | 41 +++++++++++++
> drivers/rpmsg/rpmsg_internal.h | 5 ++
> include/linux/rpmsg.h | 26 ++++++++
> 5 files changed, 270 insertions(+), 3 deletions(-)
>
> --
> 2.7.4

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