[PATCHv7 6/8] usb: dwc2: gadget: Do not fail probe if there isn't a clock node

[dinguyen]

From: Dinh Nguyen <dinguyen@xxxxxxxxxxxxxxxxxxxxx>

Since the dwc2 hcd driver is currently not looking for a clock node during
init, we should not completely fail if there isn't a clock provided.
By assigning clk = NULL, this allows the driver, when configured for dual-role
mode, to be able to continue loading the host portion of the driver when
a clock node is not specified.

Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxxxxxxxxxxxxx>
---
v7: Reworked to use clk=NULL and remove the need to is IS_ERR(clk)
v6: none
v5: reworked to not access gadget functions from the hcd.
---
 drivers/usb/dwc2/gadget.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 37c7916..367689b 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3431,6 +3431,7 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg, int irq)
 
 	hsotg->clk = devm_clk_get(dev, "otg");
 	if (IS_ERR(hsotg->clk)) {
+		hsotg->clk = NULL;
 		dev_err(dev, "cannot get otg clock\n");
 		return PTR_ERR(hsotg->clk);
 	}
-- 
2.0.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/