From 5ce7d27d5c4dd40d7b147f7a4c2f7308508208a7 Mon Sep 17 00:00:00 2001 From: Andy Gross Date: Fri, 6 Nov 2015 00:04:06 -0600 Subject: [PATCH] usb: chipidea: msm: Use posted data writes on AHB This patch sets the AHBMODE to allow for posted data writes. This results in higher performance. Signed-off-by: Andy Gross Acked-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- 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 d79ecc08a1be..3889809fd0c4 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: -- 2.39.5