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| Started by | Andy Gross <agross@codeaurora.org> |
|---|---|
| First post | 2015-11-06 07:10 +0100 |
| Last post | 2015-11-06 07:10 +0100 |
| Articles | 1 — 1 participant |
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[PATCH 1/2] usb: chipidea: msm: Use posted data writes on AHB Andy Gross <agross@codeaurora.org> - 2015-11-06 07:10 +0100
| From | Andy Gross <agross@codeaurora.org> |
|---|---|
| Date | 2015-11-06 07:10 +0100 |
| Subject | [PATCH 1/2] usb: chipidea: msm: Use posted data writes on AHB |
| Message-ID | <qrInL-JI-3@gated-at.bofh.it> |
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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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