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usb: chipidea: add TPL support for targeted hosts 

For OTG and Embedded hosts, they may need TPL (Targeted Peripheral List)
for usb certification and other vender specific requirements, the
platform can tell chipidea core driver if it supports tpl through DT
or platform data.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Chen 2014-08-19 09:51:56 +08:00 committed by Greg Kroah-Hartman
parent 05f8b35a62
commit f6a9ff0783
3 changed files with 6 additions and 0 deletions
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4
drivers/usb/chipidea/core.c
View File

@ -473,6 +473,10 @@ static int ci_get_platdata(struct device *dev,
PTR_ERR(platdata->reg_vbus));
return PTR_ERR(platdata->reg_vbus);
}
/* Get TPL support */
if (!platdata->tpl_support)
platdata->tpl_support =
of_usb_host_tpl_support(dev->of_node);
}
if (of_usb_get_maximum_speed(dev->of_node) == USB_SPEED_FULL)

1
drivers/usb/chipidea/host.c
View File

@ -60,6 +60,7 @@ static int host_start(struct ci_hdrc *ci)
hcd->power_budget = ci->platdata->power_budget;
hcd->phy = ci->transceiver;
hcd->tpl_support = ci->platdata->tpl_support;
ehci = hcd_to_ehci(hcd);
ehci->caps = ci->hw_bank.cap;

1
include/linux/usb/chipidea.h
View File

@ -31,6 +31,7 @@ struct ci_hdrc_platform_data {
#define CI_HDRC_CONTROLLER_STOPPED_EVENT 1
void (*notify_event) (struct ci_hdrc *ci, unsigned event);
struct regulator *reg_vbus;
bool tpl_support;
};
/* Default offset of capability registers */