[PATCH v2 2/3] usb: dwc3: pci: Register a software node for the dwc3 platform device

From: Heikki Krogerus
Date: Mon Jan 11 2021 - 09:13:31 EST


By registering the software node directly instead of just
the properties in it, the driver can take advantage of also
the other features the software nodes have.

Tested-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/dwc3-pci.c | 61 ++++++++++++++++++++++---------------
1 file changed, 37 insertions(+), 24 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index bae6a70664c80..037bc21bffa66 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -142,6 +142,18 @@ static const struct property_entry dwc3_pci_amd_properties[] = {
{}
};

+static const struct software_node dwc3_pci_intel_swnode = {
+ .properties = dwc3_pci_intel_properties,
+};
+
+static const struct software_node dwc3_pci_intel_mrfld_swnode = {
+ .properties = dwc3_pci_mrfld_properties,
+};
+
+static const struct software_node dwc3_pci_amd_swnode = {
+ .properties = dwc3_pci_amd_properties,
+};
+
static int dwc3_pci_quirks(struct dwc3_pci *dwc)
{
struct pci_dev *pdev = dwc->pci;
@@ -222,7 +234,6 @@ static void dwc3_pci_resume_work(struct work_struct *work)

static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
{
- struct property_entry *p = (struct property_entry *)id->driver_data;
struct dwc3_pci *dwc;
struct resource res[2];
int ret;
@@ -265,7 +276,7 @@ static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
dwc->dwc3->dev.parent = dev;
ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev));

- ret = platform_device_add_properties(dwc->dwc3, p);
+ ret = device_add_software_node(&dwc->dwc3->dev, (void *)id->driver_data);
if (ret < 0)
goto err;

@@ -288,6 +299,7 @@ static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)

return 0;
err:
+ device_remove_software_node(&dwc->dwc3->dev);
platform_device_put(dwc->dwc3);
return ret;
}
@@ -304,75 +316,76 @@ static void dwc3_pci_remove(struct pci_dev *pci)
#endif
device_init_wakeup(&pci->dev, false);
pm_runtime_get(&pci->dev);
+ device_remove_software_node(&dwc->dwc3->dev);
platform_device_unregister(dwc->dwc3);
}

static const struct pci_device_id dwc3_pci_id_table[] = {
{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BSW),
- (kernel_ulong_t) &dwc3_pci_intel_properties },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BYT),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MRFLD),
- (kernel_ulong_t) &dwc3_pci_mrfld_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_mrfld_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CMLLP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CMLH),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTLP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTH),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT_M),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_APL),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_KBP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_GLK),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPLP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPH),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPV),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICLLP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_EHLLP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPLP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_TGPH),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_JSP),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ADLS),
- (kernel_ulong_t) &dwc3_pci_intel_properties, },
+ (kernel_ulong_t) &dwc3_pci_intel_swnode, },

{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB),
- (kernel_ulong_t) &dwc3_pci_amd_properties, },
+ (kernel_ulong_t) &dwc3_pci_amd_swnode, },
{ } /* Terminating Entry */
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
--
2.29.2