On Tue, Sep 08, 2015 at 04:18:14PM -0500, Bin Liu wrote: > Hi, > > On 09/08/2015 04:16 PM, Felipe Balbi wrote: > >On Tue, Sep 08, 2015 at 04:10:12PM -0500, Bin Liu wrote: > >>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: Bin Liu <b-liu@xxxxxx> > >>--- > >> drivers/usb/musb/musb_dsps.c | 5 +++++ > >> 1 file changed, 5 insertions(+) > >> > >>diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c > >>index 0ca6011..268e2b5 100644 > >>--- a/drivers/usb/musb/musb_dsps.c > >>+++ b/drivers/usb/musb/musb_dsps.c > >>@@ -736,6 +736,11 @@ static int dsps_create_musb_pdev(struct dsps_glue *glue, > >> pdata.power = get_int_prop(dn, "mentor,power") / 2; > >> config->multipoint = of_property_read_bool(dn, "mentor,multipoint"); > >> > >>+ config->maximum_speed = of_usb_get_maximum_speed(musb->dev.of_node); > >>+ if (config->maximum_speed == USB_SPEED_UNKNOWN || > >>+ config->maximum_speed > USB_SPEED_HIGH) > > > >I'd add a log message for > HIGH. That would mean somebody thinks musb > >can work in super speed. > > Do you mean a comment, not runtime log? runtime :-) dev_info() or something -- balbi
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