Add a function to check properties and call it from probe. This will
allow us to add check code without bloating the probe function. This
needs to be done after dwc3_get_properties() and dwc3_core_init() so
that all the properties and hardware configs are available.
Signed-off-by: John Youn <johnyoun@xxxxxxxxxxxx>
---
drivers/usb/dwc3/core.c | 59 +++++++++++++++++++++++++++----------------------
1 file changed, 33 insertions(+), 26 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 5e61ef6..1a034f1 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1028,6 +1028,38 @@ static void dwc3_get_properties(struct dwc3 *dwc)
}
+static void dwc3_check_params(struct dwc3 *dwc)
+{
+ struct device *dev = dwc->dev;
+
+ /* Check the maximum_speed parameter */
+ switch (dwc->maximum_speed) {
+ case USB_SPEED_LOW:
+ case USB_SPEED_FULL:
+ case USB_SPEED_HIGH:
+ case USB_SPEED_SUPER:
+ case USB_SPEED_SUPER_PLUS:
+ break;
+ default:
+ dev_err(dev, "invalid maximum_speed parameter %d\n",
+ dwc->maximum_speed);
+ /* fall through */
+ case USB_SPEED_UNKNOWN:
+ /* default to superspeed */
+ dwc->maximum_speed = USB_SPEED_SUPER;
+
+ /*
+ * default to superspeed plus if we are capable.
+ */
+ if (dwc3_is_usb31(dwc) &&
+ (DWC3_GHWPARAMS3_SSPHY_IFC(dwc->hwparams.hwparams3) ==
+ DWC3_GHWPARAMS3_SSPHY_IFC_GEN2))
+ dwc->maximum_speed = USB_SPEED_SUPER_PLUS;
+
+ break;
+ }
+}
+
static int dwc3_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -1119,32 +1151,7 @@ static int dwc3_probe(struct platform_device *pdev)
goto err4;
}
- /* Check the maximum_speed parameter */
- switch (dwc->maximum_speed) {
- case USB_SPEED_LOW:
- case USB_SPEED_FULL:
- case USB_SPEED_HIGH:
- case USB_SPEED_SUPER:
- case USB_SPEED_SUPER_PLUS:
- break;
- default:
- dev_err(dev, "invalid maximum_speed parameter %d\n",
- dwc->maximum_speed);
- /* fall through */
- case USB_SPEED_UNKNOWN:
- /* default to superspeed */
- dwc->maximum_speed = USB_SPEED_SUPER;
-
- /*
- * default to superspeed plus if we are capable.
- */
- if (dwc3_is_usb31(dwc) &&
- (DWC3_GHWPARAMS3_SSPHY_IFC(dwc->hwparams.hwparams3) ==
- DWC3_GHWPARAMS3_SSPHY_IFC_GEN2))
- dwc->maximum_speed = USB_SPEED_SUPER_PLUS;
-
- break;
- }
+ dwc3_check_params(dwc);
ret = dwc3_core_init_mode(dwc);
if (ret)
--
2.10.0
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