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Commit c5ac6116 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: core: add dwc3_get_properties() 



This helper will be responsible for reading and
parsing our properties. No functional changes in
this patch, cleanup only.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 3b273322

drivers/usb/dwc3/core.c

+49 −41
Original line number Diff line number Diff line
@@ -948,52 +948,13 @@ static void dwc3_core_exit_mode(struct dwc3 *dwc) 
	}

}



static int dwc3_probe(struct platform_device *pdev)

static void dwc3_get_properties(struct dwc3 *dwc)

{

	struct device		*dev = &pdev->dev;

	struct resource		*res;

	struct dwc3		*dwc;

	struct device		*dev = dwc->dev;

	u8			lpm_nyet_threshold;

	u8			tx_de_emphasis;

	u8			hird_threshold;



	int			ret;



	void __iomem		*regs;



	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);

	if (!dwc)

		return -ENOMEM;



	dwc->dev = dev;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(dev, "missing memory resource\n");

		return -ENODEV;

	}



	dwc->xhci_resources[0].start = res->start;

	dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +

					DWC3_XHCI_REGS_END;

	dwc->xhci_resources[0].flags = res->flags;

	dwc->xhci_resources[0].name = res->name;



	res->start += DWC3_GLOBALS_REGS_START;



	/*

	 * Request memory region but exclude xHCI regs,

	 * since it will be requested by the xhci-plat driver.

	 */

	regs = devm_ioremap_resource(dev, res);

	if (IS_ERR(regs)) {

		ret = PTR_ERR(regs);

		goto err0;

	}



	dwc->regs	= regs;

	dwc->regs_size	= resource_size(res);



	/* default to highest possible threshold */

	lpm_nyet_threshold = 0xff;
@@ -1065,6 +1026,53 @@ static int dwc3_probe(struct platform_device *pdev) 
	dwc->hird_threshold = hird_threshold

		| (dwc->is_utmi_l1_suspend << 4);



}



static int dwc3_probe(struct platform_device *pdev)

{

	struct device		*dev = &pdev->dev;

	struct resource		*res;

	struct dwc3		*dwc;



	int			ret;



	void __iomem		*regs;



	dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL);

	if (!dwc)

		return -ENOMEM;



	dwc->dev = dev;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(dev, "missing memory resource\n");

		return -ENODEV;

	}



	dwc->xhci_resources[0].start = res->start;

	dwc->xhci_resources[0].end = dwc->xhci_resources[0].start +

					DWC3_XHCI_REGS_END;

	dwc->xhci_resources[0].flags = res->flags;

	dwc->xhci_resources[0].name = res->name;



	res->start += DWC3_GLOBALS_REGS_START;



	/*

	 * Request memory region but exclude xHCI regs,

	 * since it will be requested by the xhci-plat driver.

	 */

	regs = devm_ioremap_resource(dev, res);

	if (IS_ERR(regs)) {

		ret = PTR_ERR(regs);

		goto err0;

	}



	dwc->regs	= regs;

	dwc->regs_size	= resource_size(res);



	dwc3_get_properties(dwc);



	platform_set_drvdata(pdev, dwc);

	dwc3_cache_hwparams(dwc);