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firmware: xilinx: Add system shutdown API interface

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Add system shutdown API interface which asks firmware to
perform system shutdown/restart.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-24-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rajan Vaja 2020-04-24 13:58:05 -07:00 • committed by Greg Kroah-Hartman
parent ae5c961da6
commit fdd2ed88ca
2 changed files with 19 additions and 0 deletions
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6
include/linux/firmware/xlnx-zynqmp.h
View file

@ -64,6 +64,7 @@
enum pm_api_id {
PM_GET_API_VERSION = 1,
PM_SYSTEM_SHUTDOWN = 12,
PM_REQUEST_NODE = 13,
PM_RELEASE_NODE,
PM_SET_REQUIREMENT,
@ -340,6 +341,7 @@ int zynqmp_pm_write_ggs(u32 index, u32 value);
int zynqmp_pm_read_ggs(u32 index, u32 *value);
int zynqmp_pm_write_pggs(u32 index, u32 value);
int zynqmp_pm_read_pggs(u32 index, u32 *value);
int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype);
#else
static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void)
{
@ -482,6 +484,10 @@ static inline int zynqmp_pm_read_pggs(u32 index, u32 *value)
{
return -ENODEV;
}
static inline int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype)
{
return -ENODEV;
}
#endif
#endif /* __FIRMWARE_ZYNQMP_H__ */