[PATCH V3 14/14] i3c: mipi-i3c-hci: Advertise IBI wakeup capability

[Adrian Hunter <adrian.hunter@intel.com>]

Set master->ibi_wakeup during probe when the associated system device
advertises wakeup capability, allowing the I3C core to mark IBI-capable
I3C devices as wakeup capable.

Tweak the comment for i3c_hci_sysdev() to mention the new usage.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---


Changes in V3:

	Added Frank's Rev-by tag

Changes in V2:

	None


 drivers/i3c/master/mipi-i3c-hci/core.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/i3c/master/mipi-i3c-hci/core.c b/drivers/i3c/master/mipi-i3c-hci/core.c
index 0212c9e984cf..5d92cf0645ef 100644
--- a/drivers/i3c/master/mipi-i3c-hci/core.c
+++ b/drivers/i3c/master/mipi-i3c-hci/core.c
@@ -120,9 +120,9 @@ static inline struct i3c_hci *to_i3c_hci(struct i3c_master_controller *m)
 
 /*
  * Determine the device that does PM / DMA and has IOMMU setup done for it in
- * case of enabled IOMMU (for use with the DMA API).
- * Such device is either "mipi-i3c-hci" platform device (OF/ACPI enumeration)
- * parent or grandparent (PCI enumeration).
+ * case of enabled IOMMU (for use with the DMA API). It is also used to check
+ * for wakeup capability. Such device is either "mipi-i3c-hci" platform device
+ * (OF/ACPI enumeration) parent or grandparent (PCI enumeration).
  */
 struct device *i3c_hci_sysdev(struct device *dev)
 {
@@ -1176,6 +1176,9 @@ static int i3c_hci_probe(struct platform_device *pdev)
 	if (hci->quirks & HCI_QUIRK_RPM_IBI_ALLOWED)
 		hci->master.rpm_ibi_allowed = true;
 
+	if (device_can_wakeup(i3c_hci_sysdev(&pdev->dev)))
+		hci->master.ibi_wakeup = true;
+
 	return i3c_master_register(&hci->master, &pdev->dev, &i3c_hci_ops, false);
 }
 
-- 
2.53.0