Move mode (Host, Peripheral, OTG) initialization
to its own function in order to decrease the size
of our probe() routine.
Signed-off-by: Felipe Balbi <ba...@ti.com>
---
drivers/usb/dwc3/core.c | 133 ++++++++++++++++++++++++------------------------
1 file changed, 67 insertions(+), 66 deletions(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 38976f3..2a68aea 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -553,6 +553,69 @@ static int dwc3_core_get_phy(struct dwc3 *dwc)
return 0;
}
+static int dwc3_core_init_mode(struct dwc3 *dwc)
+{
+ struct device *dev = dwc->dev;
+ int ret;
+
+ switch (dwc->dr_mode) {
+ case USB_DR_MODE_PERIPHERAL:
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
+ ret = dwc3_gadget_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize gadget\n");
+ return ret;
+ }
+ break;
+ case USB_DR_MODE_HOST:
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
+ ret = dwc3_host_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize host\n");
+ return ret;
+ }
+ break;
+ case USB_DR_MODE_OTG:
+ dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
+ ret = dwc3_host_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize host\n");
+ return ret;
+ }
+
+ ret = dwc3_gadget_init(dwc);
+ if (ret) {
+ dev_err(dev, "failed to initialize gadget\n");
+ return ret;
+ }
+ break;
+ default:
+ dev_err(dev, "Unsupported mode of operation %d\n",
dwc->dr_mode);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void dwc3_core_exit_mode(struct dwc3 *dwc)
+{
+ switch (dwc->dr_mode) {
+ case USB_DR_MODE_PERIPHERAL:
+ dwc3_gadget_exit(dwc);
+ break;
+ case USB_DR_MODE_HOST:
+ dwc3_host_exit(dwc);
+ break;
+ case USB_DR_MODE_OTG:
+ dwc3_host_exit(dwc);
+ dwc3_gadget_exit(dwc);
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+}
+
#define DWC3_ALIGN_MASK (16 - 1)
static int dwc3_probe(struct platform_device *pdev)
@@ -682,41 +745,9 @@ static int dwc3_probe(struct platform_device *pdev)
goto err_usb3phy_power;
}
- switch (dwc->dr_mode) {
- case USB_DR_MODE_PERIPHERAL:
- dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
- ret = dwc3_gadget_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize gadget\n");
- goto err2;
- }
- break;
- case USB_DR_MODE_HOST:
- dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
- ret = dwc3_host_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize host\n");
- goto err2;
- }
- break;
- case USB_DR_MODE_OTG:
- dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
- ret = dwc3_host_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize host\n");
- goto err2;
- }
-
- ret = dwc3_gadget_init(dwc);
- if (ret) {
- dev_err(dev, "failed to initialize gadget\n");
- goto err2;
- }
- break;
- default:
- dev_err(dev, "Unsupported mode of operation %d\n",
dwc->dr_mode);
+ ret = dwc3_core_init_mode(dwc);
+ if (ret)
goto err2;
- }
ret = dwc3_debugfs_init(dwc);
if (ret) {
@@ -729,21 +760,7 @@ static int dwc3_probe(struct platform_device *pdev)
return 0;
err3:
- switch (dwc->dr_mode) {
- case USB_DR_MODE_PERIPHERAL:
- dwc3_gadget_exit(dwc);
- break;
- case USB_DR_MODE_HOST:
- dwc3_host_exit(dwc);
- break;
- case USB_DR_MODE_OTG:
- dwc3_host_exit(dwc);
- dwc3_gadget_exit(dwc);
- break;
- default:
- /* do nothing */
- break;
- }
+ dwc3_core_exit_mode(dwc);
err2:
dwc3_event_buffers_cleanup(dwc);
@@ -778,23 +795,7 @@ static int dwc3_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
dwc3_debugfs_exit(dwc);
-
- switch (dwc->dr_mode) {
- case USB_DR_MODE_PERIPHERAL:
- dwc3_gadget_exit(dwc);
- break;
- case USB_DR_MODE_HOST:
- dwc3_host_exit(dwc);
- break;
- case USB_DR_MODE_OTG:
- dwc3_host_exit(dwc);
- dwc3_gadget_exit(dwc);
- break;
- default:
- /* do nothing */
- break;
- }
-
+ dwc3_core_exit_mode(dwc);
dwc3_event_buffers_cleanup(dwc);
dwc3_free_event_buffers(dwc);
dwc3_core_exit(dwc);
--
1.9.2.459.g68773ac
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