From mboxrd@z Thu Jan 1 00:00:00 1970 From: hzpeterchen@gmail.com (Peter Chen) Date: Mon, 11 Jul 2016 11:24:08 +0800 Subject: [PATCH v2 12/22] usb: chipidea: msm: Rely on core to override AHBBURST In-Reply-To: <20160707222114.1673-13-stephen.boyd@linaro.org> References: <20160707222114.1673-1-stephen.boyd@linaro.org> <20160707222114.1673-13-stephen.boyd@linaro.org> Message-ID: <20160711032408.GE30448@shlinux2> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 > > Cc: Peter Chen > Cc: Greg Kroah-Hartman > Signed-off-by: Stephen Boyd > --- > 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