Messages in this thread Patch in this message | | | From | Jolly Shah <> | Subject | [PATCH v3 22/24] firmware: xilinx: Add system shutdown API interface | Date | Fri, 6 Mar 2020 15:47:30 -0800 |
| |
From: Rajan Vaja <rajan.vaja@xilinx.com>
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 <jollys@xilinx.com> Signed-off-by: Jolly Shah <jolly.shah@xilinx.com> --- drivers/firmware/xilinx/zynqmp.c | 13 +++++++++++++ include/linux/firmware/xlnx-zynqmp.h | 4 +++- 2 files changed, 16 insertions(+), 1 deletion(-)
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index f671b6b..d3f637b 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -834,6 +834,19 @@ int zynqmp_pm_set_requirement(const u32 node, const u32 capabilities, EXPORT_SYMBOL_GPL(zynqmp_pm_set_requirement); /** + * 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 + * + * Return: Returns status, either success or error+reason + */ +int zynqmp_pm_system_shutdown(const u32 type, const u32 subtype) +{ + return zynqmp_pm_invoke_fn(PM_SYSTEM_SHUTDOWN, type, subtype, + 0, 0, NULL); +} + +/** * ggs_show - Show global general storage (ggs) sysfs attribute * @device: Device structure * @attr: Device attribute structure diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 8ccaa39..13b9fdb 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -66,7 +66,8 @@ enum pm_api_id { PM_GET_API_VERSION = 1, - PM_REQUEST_NODE = 13, + PM_SYSTEM_SHUTDOWN = 12, + PM_REQUEST_NODE, PM_RELEASE_NODE, PM_SET_REQUIREMENT, PM_RESET_ASSERT = 17, @@ -327,6 +328,7 @@ 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); int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 *ret_payload); -- 2.7.4
| |