- If devm_regulator_get returns -EPROBE_DEFER, we also return
-EPROBE_DEFER to wait regulator being ready later.
- If devm_regulator_get returns -ENODEV, we think there is
no "vbus-supply" node at DT, it means this board doesn't need
vbus control.
- If devm_regulator_get returns other error values, it means
there are something wrong for getting this regulator.
Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
---
drivers/usb/chipidea/ci_hdrc_imx.c | 14 ++++++++++++--
1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index d06355e..0ced8c1 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -144,8 +144,18 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
/* Get the vbus regulator */
pdata.reg_vbus = devm_regulator_get(&pdev->dev, "vbus");
- if (IS_ERR(pdata.reg_vbus))
- pdata.reg_vbus = NULL;
+ if (PTR_ERR(pdata.reg_vbus) == -EPROBE_DEFER) {
+ ret = -EPROBE_DEFER;
+ goto err_clk;
+ } else if (PTR_ERR(pdata.reg_vbus) == -ENODEV) {
+ pdata.reg_vbus = NULL; /* no vbus regualator is needed */
+ } else if (IS_ERR(pdata.reg_vbus)) {
+ dev_err(&pdev->dev,
+ "Getting regulator error: %ld\n",
+ PTR_ERR(pdata.reg_vbus));
+ ret = PTR_ERR(pdata.reg_vbus);
+ goto err_clk;
+ }
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
--
1.7.0.4
--
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