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| author | Abhyuday Godhasara <abhyuday.godhasara@xilinx.com> | 2021-10-25 21:25:20 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-11-17 16:11:48 +0100 |
| commit | 1881eadb2041889d74d60c074eb04189c4a07dad (patch) | |
| tree | 5d8aace6db59cb9d1de1dcd5135e40221b031948 /drivers/firmware | |
| parent | fbf3443f77503f68f244cd7afa050c19ac78511c (diff) | |
| download | linux-stable-1881eadb2041889d74d60c074eb04189c4a07dad.tar.gz linux-stable-1881eadb2041889d74d60c074eb04189c4a07dad.tar.bz2 linux-stable-1881eadb2041889d74d60c074eb04189c4a07dad.zip | |
firmware: xilinx: add register notifier in zynqmp firmware
In zynqmp-firmware, register notifier is not supported, add support of
register notifier in zynqmp-firmware.
Acked-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tejas Patel <tejas.patel@xilinx.com>
Signed-off-by: Abhyuday Godhasara <abhyuday.godhasara@xilinx.com>
Link: https://lore.kernel.org/r/20211026042525.26612-2-abhyuday.godhasara@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/firmware')
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 3dd45a7420dc..30edcd233786 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -1117,6 +1117,29 @@ int zynqmp_pm_aes_engine(const u64 address, u32 *out) EXPORT_SYMBOL_GPL(zynqmp_pm_aes_engine); /** + * zynqmp_pm_register_notifier() - PM API for register a subsystem + * to be notified about specific + * event/error. + * @node: Node ID to which the event is related. + * @event: Event Mask of Error events for which wants to get notified. + * @wake: Wake subsystem upon capturing the event if value 1 + * @enable: Enable the registration for value 1, disable for value 0 + * + * This function is used to register/un-register for particular node-event + * combination in firmware. + * + * Return: Returns status, either success or error+reason + */ + +int zynqmp_pm_register_notifier(const u32 node, const u32 event, + const u32 wake, const u32 enable) +{ + return zynqmp_pm_invoke_fn(PM_REGISTER_NOTIFIER, node, event, + wake, enable, NULL); +} +EXPORT_SYMBOL_GPL(zynqmp_pm_register_notifier); + +/** * zynqmp_pm_system_shutdown - PM call to request a system shutdown or restart * @type: Shutdown or restart? 0 for shutdown, 1 for restart * @subtype: Specifies which system should be restarted or shut down |