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| author |   Lokesh Vutla <lokeshvutla@ti.com> | 2019-08-26 20:00:40 -0700 |
|---|---|---|
| committer |   Arnd Bergmann <arnd@arndb.de> | 2019-09-04 20:44:33 +0200 |
| commit | 45b659ee75d7bcff7d0206967d150d879f1d3eb9 (patch) | |
| tree | 31c22d96ba55b2e858e240b67409c4c4a79b319f /include/linux/soc | |
| parent | bus: imx-weim: remove incorrect __init annotations (diff) | |
| download | wireguard-linux-45b659ee75d7bcff7d0206967d150d879f1d3eb9.tar.xz wireguard-linux-45b659ee75d7bcff7d0206967d150d879f1d3eb9.zip | |
firmware: ti_sci: Allow for device shared and exclusive requests
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
driver enables this flag for every device requests. But this may not
be true for all the devices. So provide a separate commands in driver
for exclusive and shared device requests.
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/ti/ti_sci_protocol.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h index 6c610e188a44..9531ec823298 100644 --- a/include/linux/soc/ti/ti_sci_protocol.h +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -97,7 +97,10 @@ struct ti_sci_core_ops { */ struct ti_sci_dev_ops { int (*get_device)(const struct ti_sci_handle *handle, u32 id); + int (*get_device_exclusive)(const struct ti_sci_handle *handle, u32 id); int (*idle_device)(const struct ti_sci_handle *handle, u32 id); + int (*idle_device_exclusive)(const struct ti_sci_handle *handle, + u32 id); int (*put_device)(const struct ti_sci_handle *handle, u32 id); int (*is_valid)(const struct ti_sci_handle *handle, u32 id); int (*get_context_loss_count)(const struct ti_sci_handle *handle, |