On 29/07/19 5:54 PM, Lokesh Vutla wrote: > Sysfw provides an option for requesting exclusive access for a > device using the flags MSG_FLAG_DEVICE_EXCLUSIVE. If this flag is > not used, the device is meant to be shared across hosts. Once a device > is requested from a host with this flag set, any request to this > device from a different host will be nacked by sysfw. > > Current tisci firmware and pm drivers always requests for device with > exclusive permissions set. But this is not be true for certain devices > that are expcted to be shared across different host contexts. > So add support for getting the shared or exclusive permissions from DT > and request firmware accordingly. Gentle Ping on this series. Thanks and regards, Lokesh > > Changes since v4: https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=148371 > - Split the driver and arch changes into a separate series. > - Added Reviewed-by from Nishanth M > - Rebased on top of v5.3-rc2 > > Lokesh Vutla (3): > firmware: ti_sci: Allow for device shared and exclusive requests > dt-bindings: ti_sci_pm_domains: Add support for exclusive and shared > access > soc: ti: ti_sci_pm_domains: Add support for exclusive and shared > access > > .../bindings/soc/ti/sci-pm-domain.txt | 11 ++++- > MAINTAINERS | 1 + > drivers/firmware/ti_sci.c | 45 ++++++++++++++++++- > drivers/soc/ti/ti_sci_pm_domains.c | 23 +++++++++- > include/dt-bindings/soc/ti,sci_pm_domain.h | 9 ++++ > include/linux/soc/ti/ti_sci_protocol.h | 3 ++ > 6 files changed, 86 insertions(+), 6 deletions(-) > create mode 100644 include/dt-bindings/soc/ti,sci_pm_domain.h >
