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authorRoger Quadros2019-01-10 16:04:30 +0100
committerFelipe Balbi2019-01-28 11:51:29 +0100
commiteca6b49430c69742e511eb99516e86557d99ae70 (patch)
treed23c496dd0ed193b62b719b5421676c376df308c /drivers/usb/dwc3/dwc3-keystone.c
parentdt-bindings: usb: keystone-usb: Add ti,am654-dwc3 support (diff)
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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: Roger Quadros <rogerq@ti.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc3/dwc3-keystone.c')
-rw-r--r--drivers/usb/dwc3/dwc3-keystone.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
index 193a9a88222a..cbee5fb9b9fb 100644
--- a/drivers/usb/dwc3/dwc3-keystone.c
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -106,6 +106,10 @@ static int kdwc3_probe(struct platform_device *pdev)
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);
if (irq < 0) {
dev_err(&pdev->dev, "missing irq\n");
@@ -123,6 +127,7 @@ static int kdwc3_probe(struct platform_device *pdev)
kdwc3_enable_irqs(kdwc);
+skip_irq:
error = of_platform_populate(node, NULL, NULL, dev);
if (error) {
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)
{
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);
pm_runtime_put_sync(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[] = {
{ .compatible = "ti,keystone-dwc3", },
+ { .compatible = "ti,am654-dwc3" },
{},
};
MODULE_DEVICE_TABLE(of, kdwc3_of_match);