Add shutdown/wakeup a resource eemi operations to shutdown
or bringup a resource.
Signed-off-by: Ben Levinsky <ben.levinsky@xxxxxxxxxx>
---
drivers/firmware/xilinx/zynqmp.c | 35 +++++++++++++++++++++++++++++++++++
include/linux/firmware/xlnx-zynqmp.h | 8 ++++++++
2 files changed, 43 insertions(+)
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 7978065..0a545a2 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -694,6 +694,39 @@ static int zynqmp_pm_release_node(const u32 node)
}
/**
+ * zynqmp_pm_force_powerdown - PM call to request for another PU or subsystem to
+ * be powered down forcefully
+ * @target: Node ID of the targeted PU or subsystem
+ * @ack: Flag to specify whether acknowledge is requested
+ *
+ * Return: Returns status, either success or error+reason
+ */
+static int zynqmp_pm_force_powerdown(const u32 target,
+ const enum zynqmp_pm_request_ack ack)
+{
+ return zynqmp_pm_invoke_fn(PM_FORCE_POWERDOWN, target, ack, 0, 0, NULL);
+}
+
+/**
+ * zynqmp_pm_request_wakeup - PM call to wake up selected master or subsystem
+ * @node: Node ID of the master or subsystem
+ * @set_addr: Specifies whether the address argument is relevant
+ * @address: Address from which to resume when woken up
+ * @ack: Flag to specify whether acknowledge requested
+ *
+ * Return: Returns status, either success or error+reason
+ */
+static int zynqmp_pm_request_wakeup(const u32 node,
+ const bool set_addr,
+ const u64 address,
+ const enum zynqmp_pm_request_ack ack)
+{
+ /* set_addr flag is encoded into 1st bit of address */
+ return zynqmp_pm_invoke_fn(PM_REQUEST_WAKEUP, node, address | set_addr,
+ address >> 32, ack, NULL);
+}
+
+/**
* zynqmp_pm_set_requirement() - PM call to set requirement for PM slaves
* @node: Node ID of the slave
* @capabilities: Requested capabilities of the slave
@@ -750,9 +783,11 @@ static const struct zynqmp_eemi_ops eemi_ops = {
.clock_getrate = zynqmp_pm_clock_getrate,
.clock_setparent = zynqmp_pm_clock_setparent,
.clock_getparent = zynqmp_pm_clock_getparent,
+ .force_powerdown = zynqmp_pm_force_powerdown,
.ioctl = zynqmp_pm_ioctl,
.reset_assert = zynqmp_pm_reset_assert,
.reset_get_status = zynqmp_pm_reset_get_status,
+ .request_wakeup = zynqmp_pm_request_wakeup,
.init_finalize = zynqmp_pm_init_finalize,
.set_suspend_mode = zynqmp_pm_set_suspend_mode,
.request_node = zynqmp_pm_request_node,
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index ddc996de..899febc 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -62,6 +62,8 @@
enum pm_api_id {
PM_GET_API_VERSION = 1,
+ PM_FORCE_POWERDOWN = 8,
+ PM_REQUEST_WAKEUP = 10,
PM_REQUEST_NODE = 13,
PM_RELEASE_NODE,
PM_SET_REQUIREMENT,
@@ -338,6 +340,12 @@ struct zynqmp_eemi_ops {
const u32 qos,
const enum zynqmp_pm_request_ack ack);
int (*release_node)(const u32 node);
+ int (*force_powerdown)(const u32 target,
+ const enum zynqmp_pm_request_ack ack);
+ int (*request_wakeup)(const u32 node,
+ const bool set_addr,
+ const u64 address,
+ const enum zynqmp_pm_request_ack ack);
int (*set_requirement)(const u32 node,
const u32 capabilities,
const u32 qos,
--
2.7.4
