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| author | Rajan Vaja <rajan.vaja@xilinx.com> | 2019-02-01 14:08:49 -0800 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2019-02-12 13:37:48 +0100 |
| commit | c1986ac3d483b051fc237aea3e9812fd1bb4d239 (patch) | |
| tree | 3d1cd2a720fb1f965c1526bd9c5603b056cbda1c /include/linux/firmware/xlnx-zynqmp.h | |
| parent | 8fd27fb4cf76a64d4ea4814b358541477dc7a31e (diff) | |
| download | lwn-c1986ac3d483b051fc237aea3e9812fd1bb4d239.tar.gz lwn-c1986ac3d483b051fc237aea3e9812fd1bb4d239.zip | |
firmware: xilinx: Add APIs to control node status/power
Add Xilinx ZynqMP firmware APIs to control node status
and power. These APIs allows turning on/off power domain
and setting capabilities of devices present in power domain.
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'include/linux/firmware/xlnx-zynqmp.h')
| -rw-r--r-- | include/linux/firmware/xlnx-zynqmp.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index 56b2108a2148..642dab10f65d 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -40,8 +40,19 @@ /* Payload size (consists of callback API ID + arguments) */ #define CB_PAYLOAD_SIZE (CB_ARG_CNT + 1) +#define ZYNQMP_PM_MAX_QOS 100U + +/* Node capabilities */ +#define ZYNQMP_PM_CAPABILITY_ACCESS 0x1U +#define ZYNQMP_PM_CAPABILITY_CONTEXT 0x2U +#define ZYNQMP_PM_CAPABILITY_WAKEUP 0x4U +#define ZYNQMP_PM_CAPABILITY_POWER 0x8U + enum pm_api_id { PM_GET_API_VERSION = 1, + PM_REQUEST_NODE = 13, + PM_RELEASE_NODE, + PM_SET_REQUIREMENT, PM_RESET_ASSERT = 17, PM_RESET_GET_STATUS, PM_PM_INIT_FINALIZE = 21, @@ -224,6 +235,12 @@ enum zynqmp_pm_suspend_reason { SUSPEND_SYSTEM_SHUTDOWN, }; +enum zynqmp_pm_request_ack { + ZYNQMP_PM_REQUEST_ACK_NO = 1, + ZYNQMP_PM_REQUEST_ACK_BLOCKING, + ZYNQMP_PM_REQUEST_ACK_NON_BLOCKING, +}; + /** * struct zynqmp_pm_query_data - PM query data * @qid: query ID @@ -257,6 +274,15 @@ struct zynqmp_eemi_ops { int (*reset_get_status)(const enum zynqmp_pm_reset reset, u32 *status); int (*init_finalize)(void); int (*set_suspend_mode)(u32 mode); + int (*request_node)(const u32 node, + const u32 capabilities, + const u32 qos, + const enum zynqmp_pm_request_ack ack); + int (*release_node)(const u32 node); + int (*set_requirement)(const u32 node, + const u32 capabilities, + const u32 qos, + const enum zynqmp_pm_request_ack ack); }; int zynqmp_pm_invoke_fn(u32 pm_api_id, u32 arg0, u32 arg1, |