[PATCH v2 0/3] remoteproc sysfs fixes/improvements

Suman Anna
2020-11-21T03:02:54Z

Hi All,

This is a refresh of the unaccepted patches from an old series [1].
Patches 2 and 3 from that series were merged and these are rebased and
revised versions of the same patches. I had forgotten about these patches,
and am resurrecting these again. Patches are on top of latest 5.10-rc4.

The features being introduced here will be needed by the recently posted PRU
remoteproc driver [2] in addition to the existing Wkup M3 remoteproc driver.
Both of these drivers follow a client-driven boot methodology, with the latter
strictly booted by another driver in kernel. The PRU remoteproc driver will be
supporting both in-kernel clients as well as control from userspace orthogonally.
The logic though is applicable and useful to any remoteproc driver not using
'auto-boot' and using an external driver/application to boot the remoteproc.

regards
Suman

[1] https://patchwork.kernel.org/project/linux-remoteproc/cover/20180915003725.17549-1-s-anna@ti.com/
[2] https://patchwork.kernel.org/project/linux-remoteproc/cover/20201119140850.12268-1-grzegorz.jaszczyk@linaro.org/

Suman Anna (3):
remoteproc: Fix unbalanced boot with sysfs for no auto-boot rprocs
remoteproc: Introduce deny_sysfs_ops flag
remoteproc: wkup_m3: Set deny_sysfs_ops flag

drivers/remoteproc/remoteproc_sysfs.c | 28 ++++++++++++++++++++++++++-
drivers/remoteproc/wkup_m3_rproc.c | 1 +
include/linux/remoteproc.h | 2 ++
3 files changed, 30 insertions(+), 1 deletion(-)

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2.28.0