linux-stable/drivers/firmware/xilinx
Tanmay Shah acd6510dd7 firmware: xilinx: Add TF_A_PM_REGISTER_SGI SMC call
SGI interrupt register and reset is performed by EEMI ioctl
IOCTL_REGISTER_SGI. However, this is not correct use of EEMI call.
SGI registration functionality does not qualify as energy management
activity and so shouldn't be mapped to EEMI call.

This new call will replace IOCTL_REGISTER_SGI and will  be handled by TF-A
specific handler in TF-A. To maintain backward compatibility for a while
firmware driver will still use IOCTL_REGISTER_SGI as fallback strategy if
new call fails or is not supported by TF-A.

This new design also helps to make TF-A as pass through layer for EEMI
calls. So we don't have to maintain PM_IOCTL as EEMI API ID in TF-A.

Signed-off-by: Tanmay Shah <tanmay.shah@xilinx.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20220607224253.54919-1-tanmay.shah@xilinx.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
2022-06-29 14:46:22 +02:00
..
Kconfig arm64: zynqmp: Make zynqmp_firmware driver optional 2020-03-09 14:58:24 +01:00
Makefile firmware: xilinx: Add debugfs interface 2018-09-26 08:47:35 +02:00
zynqmp-debug.c firmware: xilinx: Remove eemi ops for query_data 2020-04-28 15:45:06 +02:00
zynqmp-debug.h firmware: xilinx: Add debugfs interface 2018-09-26 08:47:35 +02:00
zynqmp.c firmware: xilinx: Add TF_A_PM_REGISTER_SGI SMC call 2022-06-29 14:46:22 +02:00