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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2017-03-15 12:31:53 +0100 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-04-11 10:58:22 +0300 |
| commit | 8ec32c38efa5f9f92b275148ccb247156f0bf04e (patch) | |
| tree | 77690f4ee8aee164a275cfafa62b0347bed83bbc /drivers/usb/dwc2 | |
| parent | 20839dbb7da5ad77e18bb51f5f56221290bc759e (diff) | |
| download | linux-8ec32c38efa5f9f92b275148ccb247156f0bf04e.tar.bz2 | |
usb: dwc2: simplify optional reset handling
As of commit bb475230b8e5 ("reset: make optional functions really
optional"), the reset framework API calls use NULL pointers to describe
optional, non-present reset controls.
This allows to return errors from devm_reset_control_get_optional and to
call reset_control_(de)assert unconditionally.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/platform.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 9564bc76c56f..daf0d37acb37 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -214,20 +214,11 @@ static int dwc2_lowlevel_hw_init(struct dwc2_hsotg *hsotg) hsotg->reset = devm_reset_control_get_optional(hsotg->dev, "dwc2"); if (IS_ERR(hsotg->reset)) { ret = PTR_ERR(hsotg->reset); - switch (ret) { - case -ENOENT: - case -ENOTSUPP: - hsotg->reset = NULL; - break; - default: - dev_err(hsotg->dev, "error getting reset control %d\n", - ret); - return ret; - } + dev_err(hsotg->dev, "error getting reset control %d\n", ret); + return ret; } - if (hsotg->reset) - reset_control_deassert(hsotg->reset); + reset_control_deassert(hsotg->reset); /* Set default UTMI width */ hsotg->phyif = GUSBCFG_PHYIF16; @@ -326,8 +317,7 @@ static int dwc2_driver_remove(struct platform_device *dev) if (hsotg->ll_hw_enabled) dwc2_lowlevel_hw_disable(hsotg); - if (hsotg->reset) - reset_control_assert(hsotg->reset); + reset_control_assert(hsotg->reset); return 0; } |