Commit eca6b494 authored by Roger Quadros's avatar Roger Quadros Committed by Felipe Balbi
Browse files

usb: dwc3: keystone: Add support for ti,am654-dwc3 



The AM654 SoC contains a DWC3 controller with TI specific
wrapper. Add support for that.

Unlike the Keystone 2 case, for AM654 We don't need to
process any IRQs for basic USB operation.

Signed-off-by: default avatarRoger Quadros <rogerq@ti.com>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent d26c0578

drivers/usb/dwc3/Kconfig

+3 −3
Original line number Original line Diff line number Diff line
@@ -86,11 +86,11 @@ config USB_DWC3_HAPS 
	  platform, please say 'Y' or 'M' here.

	  platform, please say 'Y' or 'M' here.





config USB_DWC3_KEYSTONE

config USB_DWC3_KEYSTONE

	tristate "Texas Instruments Keystone2 Platforms"

	tristate "Texas Instruments Keystone2/AM654 Platforms"

	depends on ARCH_KEYSTONE || COMPILE_TEST

	depends on ARCH_KEYSTONE || ARCH_K3 || COMPILE_TEST

	default USB_DWC3

	default USB_DWC3

	help

	help

	  Support of USB2/3 functionality in TI Keystone2 platforms.

	  Support of USB2/3 functionality in TI Keystone2 and AM654 platforms.

	  Say 'Y' or 'M' here if you have one such device

	  Say 'Y' or 'M' here if you have one such device





config USB_DWC3_OF_SIMPLE

config USB_DWC3_OF_SIMPLE

drivers/usb/dwc3/dwc3-keystone.c

+10 −1
Original line number Original line Diff line number Diff line
@@ -106,6 +106,10 @@ static int kdwc3_probe(struct platform_device *pdev) 
		goto err_irq;

		goto err_irq;

	}

	}





	/* IRQ processing not required currently for AM65 */

	if (of_device_is_compatible(node, "ti,am654-dwc3"))

		goto skip_irq;



	irq = platform_get_irq(pdev, 0);

	irq = platform_get_irq(pdev, 0);

	if (irq < 0) {

	if (irq < 0) {

		dev_err(&pdev->dev, "missing irq\n");

		dev_err(&pdev->dev, "missing irq\n");
@@ -123,6 +127,7 @@ static int kdwc3_probe(struct platform_device *pdev) 




	kdwc3_enable_irqs(kdwc);

	kdwc3_enable_irqs(kdwc);





skip_irq:

	error = of_platform_populate(node, NULL, NULL, dev);

	error = of_platform_populate(node, NULL, NULL, dev);

	if (error) {

	if (error) {

		dev_err(&pdev->dev, "failed to create dwc3 core\n");

		dev_err(&pdev->dev, "failed to create dwc3 core\n");
@@ -152,8 +157,11 @@ static int kdwc3_remove_core(struct device *dev, void *c) 
static int kdwc3_remove(struct platform_device *pdev)

static int kdwc3_remove(struct platform_device *pdev)

{

{

	struct dwc3_keystone *kdwc = platform_get_drvdata(pdev);

	struct dwc3_keystone *kdwc = platform_get_drvdata(pdev);

	struct device_node *node = pdev->dev.of_node;





	if (!of_device_is_compatible(node, "ti,am654-dwc3"))

		kdwc3_disable_irqs(kdwc);

		kdwc3_disable_irqs(kdwc);



	device_for_each_child(&pdev->dev, NULL, kdwc3_remove_core);

	device_for_each_child(&pdev->dev, NULL, kdwc3_remove_core);

	pm_runtime_put_sync(kdwc->dev);

	pm_runtime_put_sync(kdwc->dev);

	pm_runtime_disable(kdwc->dev);

	pm_runtime_disable(kdwc->dev);
@@ -165,6 +173,7 @@ static int kdwc3_remove(struct platform_device *pdev) 




static const struct of_device_id kdwc3_of_match[] = {

static const struct of_device_id kdwc3_of_match[] = {

	{ .compatible = "ti,keystone-dwc3", },

	{ .compatible = "ti,keystone-dwc3", },

	{ .compatible = "ti,am654-dwc3" },

	{},

	{},

};

};

MODULE_DEVICE_TABLE(of, kdwc3_of_match);

MODULE_DEVICE_TABLE(of, kdwc3_of_match);