[PATCH v2 12/22] usb: chipidea: msm: Rely on core to override AHBBURST
From: Peter Chen <hidden>
Date: 2016-07-11 03:31:49
Also in:
linux-arm-msm, lkml
On Thu, Jul 07, 2016 at 03:21:03PM -0700, Stephen Boyd wrote:
The core framework already handles setting this parameter with a platform quirk. Add the appropriate flag so that we always set AHBBURST to 0. Technically DT should be doing this, but we always do it for msm chipidea devices so setting the flag in the driver works just as well.
You may need to mention if the platform needs to set value rather than 0, it needs to "ahb-burst-config" at dts, others are ok. Acked-by: Peter Chen <redacted>
quoted hunk ↗ jump to hunk
Cc: Peter Chen <redacted> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <redacted> --- drivers/usb/chipidea/ci_hdrc_msm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c index 89c1a02d69b5..719b20caf88e 100644 --- a/drivers/usb/chipidea/ci_hdrc_msm.c +++ b/drivers/usb/chipidea/ci_hdrc_msm.c@@ -24,7 +24,6 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event) switch (event) { case CI_HDRC_CONTROLLER_RESET_EVENT: dev_dbg(dev, "CI_HDRC_CONTROLLER_RESET_EVENT received\n"); - writel(0, USB_AHBBURST); /* use AHB transactor, allow posted data writes */ writel(0x8, USB_AHBMODE); usb_phy_init(ci->usb_phy);@@ -47,7 +46,8 @@ static struct ci_hdrc_platform_data ci_hdrc_msm_platdata = { .name = "ci_hdrc_msm", .capoffset = DEF_CAPOFFSET, .flags = CI_HDRC_REGS_SHARED | - CI_HDRC_DISABLE_STREAMING, + CI_HDRC_DISABLE_STREAMING | + CI_HDRC_OVERRIDE_AHB_BURST, .notify_event = ci_hdrc_msm_notify_event, };-- 2.9.0.rc2.8.ga28705d -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
-- Best Regards, Peter Chen