[PATCH RFC RESEND 7/7] i3c: mipi-i3c-hci: Advertise IBI wakeup capability
Adrian Hunter <[email protected]> Wed, 1 Jul 2026 23:15:33 +0300
| Newsgroups | org.infradead.lists.linux-i3c,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci,org.kernel.vger.linux-pm |
|---|---|
| Organization | Intel Finland Oy, Registered Address: c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo, Business Identity Code: 0357606 - 4, Domiciled in Helsinki |
| Message-ID | <[email protected]> |
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 <[email protected]> --- 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 4e17b1480362..55724a986f90 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) { @@ -1175,6 +1175,9 @@ 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 -- linux-i3c mailing list [email protected] http://lists.infradead.org/mailman/listinfo/linux-i3c