[PATCH v4 1/1] ARM i.MX6: change mxs usbphy clock usage
shawn.guo at linaro.org
Thu Jan 17 21:55:10 EST 2013
On Fri, Jan 18, 2013 at 10:38:05AM +0800, Peter Chen wrote:
> This mxs usbphy is only needs to be on after system boots
> up, and software never needs to control it anymore.
> Meanwhile, usbphy's parent needs to be notified if usb
> is suspend or not. So we design below mxs usbphy usage:
> - usbphy1_gate and usbphy2_gate:
> Their parents are dummy clock, we only needs to enable
> it after system boots up.
> - usbphy1 and usbphy2
> Usage reserved bit for this clock, in that case, the refcount
> will be updated, but without hardware changing.
> Signed-off-by: Peter Chen <peter.chen at freescale.com>
More information about the linux-arm-kernel