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Commit 41932b9b authored by Bin Liu's avatar Bin Liu Committed by Felipe Balbi
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usb: musb: dsps: control musb speed based on dts setting 



Set musb config->maximum_speed based on the dts setting to control musb
speed.

By default musb works in high-speed mode. Adding

	maximum-speed = "full-speed";

to dts usb node will force musb to full-speed mode.

Signed-off-by: default avatarBin Liu <b-liu@ti.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 9b753764

drivers/usb/musb/musb_dsps.c

+13 −0
Original line number Diff line number Diff line
@@ -747,6 +747,19 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, 
	if (!ret && val)

		config->multipoint = true;



	config->maximum_speed = of_usb_get_maximum_speed(dn);

	switch (config->maximum_speed) {

	case USB_SPEED_LOW:

	case USB_SPEED_FULL:

		break;

	case USB_SPEED_SUPER:

		dev_warn(dev, "ignore incorrect maximum_speed "

				"(super-speed) setting in dts");

		/* fall through */

	default:

		config->maximum_speed = USB_SPEED_HIGH;

	}



	ret = platform_device_add_data(musb, &pdata, sizeof(pdata));

	if (ret) {

		dev_err(dev, "failed to add platform_data\n");