Messages in this thread | | | Date | Fri, 6 Nov 2015 16:24:31 +0800 | From | Peter Chen <> | Subject | Re: [PATCH 1/2] usb: chipidea: msm: Use posted data writes on AHB |
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On Fri, Nov 06, 2015 at 12:04:06AM -0600, Andy Gross wrote: > This patch sets the AHBMODE to allow for posted data writes. This > results in higher performance. > > Signed-off-by: Andy Gross <agross@codeaurora.org> > --- > drivers/usb/chipidea/ci_hdrc_msm.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c > index d79ecc0..3889809 100644 > --- a/drivers/usb/chipidea/ci_hdrc_msm.c > +++ b/drivers/usb/chipidea/ci_hdrc_msm.c > @@ -25,7 +25,8 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event) > case CI_HDRC_CONTROLLER_RESET_EVENT: > dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n"); > writel(0, USB_AHBBURST); > - writel(0, USB_AHBMODE); > + /* use AHB transactor, allow posted data writes */ > + writel(0x8, USB_AHBMODE); > usb_phy_init(ci->usb_phy); > break; > case CI_HDRC_CONTROLLER_STOPPED_EVENT: > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > hosted by The Linux Foundation >
Greg, another related changes is at host driver, pick it up directly please, thanks.
Acked-by: Peter Chen <peter.chen@freescale.com>
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Best Regards, Peter Chen
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