On 15/04/17 20:05, Tony Lindgren wrote: > The idle mode needs to be only disabled for UTMIAUTOIDLE while > ULPIAUTOIDLE can be enabled. > > This matches the TLL_CHANNEL_CONF_i register configuration for ehci-tll > in the Motorola Linux kernel tree for Wrigley 3G LTE modem on droid 4 > and the modem still stays responsive. > > Cc: Felipe Balbi <[email protected]> > Cc: Keshava Munegowda <[email protected]> > Cc: Marcel Partap <[email protected]> > Cc: Michael Scott <[email protected]> > Cc: Roger Quadros <[email protected]> > Cc: Sebastian Reichel <[email protected]> > Signed-off-by: Tony Lindgren <[email protected]>
Acked-by: Roger Quadros <[email protected]> > --- > drivers/mfd/omap-usb-tll.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > > diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c > --- a/drivers/mfd/omap-usb-tll.c > +++ b/drivers/mfd/omap-usb-tll.c > @@ -373,12 +373,13 @@ int omap_tll_init(struct usbhs_omap_platform_data > *pdata) > } else if (pdata->port_mode[i] == > OMAP_EHCI_PORT_MODE_TLL) { > /* > - * Disable AutoIdle, BitStuffing > - * and use SDR Mode > + * Disable UTMI AutoIdle, BitStuffing > + * and use SDR Mode. Enable ULPI AutoIdle. > */ > reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE > | OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE); > reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF; > + reg |= OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE; > } else if (pdata->port_mode[i] == > OMAP_EHCI_PORT_MODE_HSIC) { > /* > cheers, -roger
