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usb: dwc2: gadget: move phy control calls out of pullup() method 

This patch moves phy enable/disable calls from pullup() method to
udc_start/stop functions. This solves the issue related to limited caller
context for PHY functions, because they cannot be called from non-sleeping
context. This is also a preparation for using soft-disconnect feature of
udc controller in pullup() method.

Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Marek Szyprowski 2014-10-20 12:45:37 +02:00 committed by Felipe Balbi
parent ad38dc5dac
commit c816c47fe6
1 changed files with 4 additions and 2 deletions
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6
drivers/usb/dwc2/gadget.c
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@ -2916,6 +2916,8 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
goto err;
}
s3c_hsotg_phy_enable(hsotg);
dev_info(hsotg->dev, "bound driver %s\n", driver->driver.name);
return 0;
@ -2951,6 +2953,8 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget)
spin_unlock_irqrestore(&hsotg->lock, flags);
s3c_hsotg_phy_disable(hsotg);
regulator_bulk_disable(ARRAY_SIZE(hsotg->supplies), hsotg->supplies);
clk_disable(hsotg->clk);
@ -2985,13 +2989,11 @@ static int s3c_hsotg_pullup(struct usb_gadget *gadget, int is_on)
spin_lock_irqsave(&hsotg->lock, flags);
if (is_on) {
s3c_hsotg_phy_enable(hsotg);
clk_enable(hsotg->clk);
s3c_hsotg_core_init_disconnected(hsotg);
s3c_hsotg_core_connect(hsotg);
} else {
clk_disable(hsotg->clk);
s3c_hsotg_phy_disable(hsotg);
}
hsotg->gadget.speed = USB_SPEED_UNKNOWN;