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| author | Yinbo Zhu <zhuyinbo@loongson.cn> | 2023-08-15 08:58:33 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-08-22 14:49:12 +0200 |
| commit | e16d5f1447e0fae6cbcd1d430b20f87b65f25307 (patch) | |
| tree | b792d80aa5a44fe54894f56e8f11d3816d59387f /drivers/usb/dwc2/params.c | |
| parent | usb: gadget: remove max support speed info in bind operation (diff) | |
| download | linux-e16d5f1447e0fae6cbcd1d430b20f87b65f25307.tar.xz linux-e16d5f1447e0fae6cbcd1d430b20f87b65f25307.zip | |
usb: dwc2: add pci_device_id driver_data parse support
The dwc2 driver has everything we need to run in PCI mode except
for pci_device_id driver_data parse. With that to set Loongson
dwc2 element and added identified as PCI_VENDOR_ID_LOONGSON
and PCI_DEVICE_ID_LOONGSON_DWC2 in dwc2_pci_ids, the Loongson
dwc2 controller will work.
Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
Link: https://lore.kernel.org/r/20230815065833.3375-1-zhuyinbo@loongson.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc2/params.c')
| -rw-r--r-- | drivers/usb/dwc2/params.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index 4c7c3dd15f9b..93f52e371cdd 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -7,9 +7,14 @@ #include <linux/module.h> #include <linux/of_device.h> #include <linux/usb/of.h> +#include <linux/pci_ids.h> +#include <linux/pci.h> #include "core.h" +#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0 +#define PCI_DEVICE_ID_LOONGSON_DWC2 0x7a04 + static void dwc2_set_bcm_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; @@ -55,6 +60,14 @@ static void dwc2_set_jz4775_params(struct dwc2_hsotg *hsotg) !device_property_read_bool(hsotg->dev, "disable-over-current"); } +static void dwc2_set_loongson_params(struct dwc2_hsotg *hsotg) +{ + struct dwc2_core_params *p = &hsotg->params; + + p->phy_utmi_width = 8; + p->power_down = DWC2_POWER_DOWN_PARAM_PARTIAL; +} + static void dwc2_set_x1600_params(struct dwc2_hsotg *hsotg) { struct dwc2_core_params *p = &hsotg->params; @@ -302,6 +315,23 @@ const struct acpi_device_id dwc2_acpi_match[] = { }; MODULE_DEVICE_TABLE(acpi, dwc2_acpi_match); +const struct pci_device_id dwc2_pci_ids[] = { + { + PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, PCI_PRODUCT_ID_HAPS_HSOTG), + }, + { + PCI_DEVICE(PCI_VENDOR_ID_STMICRO, + PCI_DEVICE_ID_STMICRO_USB_OTG), + }, + { + PCI_DEVICE(PCI_VENDOR_ID_LOONGSON, PCI_DEVICE_ID_LOONGSON_DWC2), + .driver_data = (unsigned long)dwc2_set_loongson_params, + }, + { /* end: all zeroes */ } +}; +MODULE_DEVICE_TABLE(pci, dwc2_pci_ids); +EXPORT_SYMBOL_GPL(dwc2_pci_ids); + static void dwc2_set_param_otg_cap(struct dwc2_hsotg *hsotg) { switch (hsotg->hw_params.op_mode) { @@ -948,13 +978,20 @@ int dwc2_init_params(struct dwc2_hsotg *hsotg) if (match && match->data) { set_params = match->data; set_params(hsotg); - } else { + } else if (!match) { const struct acpi_device_id *amatch; + const struct pci_device_id *pmatch = NULL; amatch = acpi_match_device(dwc2_acpi_match, hsotg->dev); if (amatch && amatch->driver_data) { set_params = (set_params_cb)amatch->driver_data; set_params(hsotg); + } else if (!amatch) + pmatch = pci_match_id(dwc2_pci_ids, to_pci_dev(hsotg->dev->parent)); + + if (pmatch && pmatch->driver_data) { + set_params = (set_params_cb)pmatch->driver_data; + set_params(hsotg); } } |