diff options
| -rw-r--r-- | drivers/firmware/xilinx/zynqmp.c | 29 | ||||
| -rw-r--r-- | include/linux/firmware/xlnx-zynqmp.h | 20 |
2 files changed, 49 insertions, 0 deletions
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index 16a23bc4c2c3..765a2ca1b100 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -530,6 +530,33 @@ static int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, return ret; } +/** + * zynqmp_pm_init_finalize() - PM call to inform firmware that the caller + * master has initialized its own power management + * + * This API function is to be used for notify the power management controller + * about the completed power management initialization. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_init_finalize(void) +{ + return zynqmp_pm_invoke_fn(PM_PM_INIT_FINALIZE, 0, 0, 0, 0, NULL); +} + +/** + * zynqmp_pm_set_suspend_mode() - Set system suspend mode + * @mode: Mode to set for system suspend + * + * This API function is used to set mode of system suspend. + * + * Return: Returns status, either success or error+reason + */ +static int zynqmp_pm_set_suspend_mode(u32 mode) +{ + return zynqmp_pm_invoke_fn(PM_SET_SUSPEND_MODE, mode, 0, 0, 0, NULL); +} + static const struct zynqmp_eemi_ops eemi_ops = { .get_api_version = zynqmp_pm_get_api_version, .get_chipid = zynqmp_pm_get_chipid, @@ -546,6 +573,8 @@ static const struct zynqmp_eemi_ops eemi_ops = { .ioctl = zynqmp_pm_ioctl, .reset_assert = zynqmp_pm_reset_assert, .reset_get_status = zynqmp_pm_reset_get_status, + .init_finalize = zynqmp_pm_init_finalize, + .set_suspend_mode = zynqmp_pm_set_suspend_mode, }; /** diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 5a1f19848100..56b2108a2148 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -28,14 +28,23 @@ /* SMC SIP service Call Function Identifier Prefix */ #define PM_SIP_SVC 0xC2000000 #define PM_GET_TRUSTZONE_VERSION 0xa03 +#define PM_SET_SUSPEND_MODE 0xa02 +#define GET_CALLBACK_DATA 0xa01 /* Number of 32bits values in payload */ #define PAYLOAD_ARG_CNT 4U +/* Number of arguments for a callback */ +#define CB_ARG_CNT 4 + +/* Payload size (consists of callback API ID + arguments) */ +#define CB_PAYLOAD_SIZE (CB_ARG_CNT + 1) + enum pm_api_id { PM_GET_API_VERSION = 1, PM_RESET_ASSERT = 17, PM_RESET_GET_STATUS, + PM_PM_INIT_FINALIZE = 21, PM_GET_CHIPID = 24, PM_IOCTL = 34, PM_QUERY_DATA, @@ -209,6 +218,12 @@ enum zynqmp_pm_reset { ZYNQMP_PM_RESET_END = ZYNQMP_PM_RESET_PS_PL3 }; +enum zynqmp_pm_suspend_reason { + SUSPEND_POWER_REQUEST = 201, + SUSPEND_ALERT, + SUSPEND_SYSTEM_SHUTDOWN, +}; + /** * struct zynqmp_pm_query_data - PM query data * @qid: query ID @@ -240,8 +255,13 @@ struct zynqmp_eemi_ops { int (*reset_assert)(const enum zynqmp_pm_reset reset, const enum zynqmp_pm_reset_action assert_flag); int (*reset_get_status)(const enum zynqmp_pm_reset reset, u32 *status); + int (*init_finalize)(void); + int (*set_suspend_mode)(u32 mode); }; +int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1, + u32 arg2, u32 arg3, u32 *ret_payload); + #if IS_REACHABLE(CONFIG_ARCH_ZYNQMP) const struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void); #else |