usb: dwc2: add external_id_pin_ctl core parameter
This is required due to an Intel specific hardware issue. Where id-
pin setup causes glitches on the interrupt line when CONIDSTSCHG
interrupt is enabled.
Specify external_id_pin_ctl when an external driver (for example phy)
can handle id change, so that CONIDSTSCHG interrupt can be disabled
from the controller.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index e6abc28..e46304d 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -331,6 +331,11 @@
* by the driver and are ignored in this
* configuration value.
* @uframe_sched: True to enable the microframe scheduler
+ * @external_id_pin_ctl: Specifies whether ID pin is handled externally.
+ * Disable CONIDSTSCHNG controller interrupt in such
+ * case.
+ * 0 - No (default)
+ * 1 - Yes
*
* The following parameters may be specified when starting the module. These
* parameters define how the DWC_otg controller should be configured. A
@@ -368,6 +373,7 @@
int reload_ctl;
int ahbcfg;
int uframe_sched;
+ int external_id_pin_ctl;
};
/**