From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Sergei Shtylyov <sergei.shtylyov@gmail.com>
Cc: Felipe Balbi <balbi@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 09/11] usb: phy: phy-mv-usb: convert to readl_poll_timeout_atomic()
Date: Fri, 21 Aug 2020 09:52:10 +0800 [thread overview]
Message-ID: <1597974730.21253.4.camel@mhfsdcap03> (raw)
In-Reply-To: <c28a906c-ed1a-8884-3016-b8664a313331@gmail.com>
On Thu, 2020-08-20 at 13:17 +0300, Sergei Shtylyov wrote:
> On 20.08.2020 8:45, Chunfeng Yun wrote:
>
> > Use readl_poll_timeout_atomic() to simplify code
> >
> > Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
> > ---
> > v2: udelay 10us instead of 20us according to kerneldoc
> > ---
> > drivers/usb/phy/phy-mv-usb.c | 16 +++++++---------
> > 1 file changed, 7 insertions(+), 9 deletions(-)
> >
> > diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
> > index ce767ec..e801569 100644
> > --- a/drivers/usb/phy/phy-mv-usb.c
> > +++ b/drivers/usb/phy/phy-mv-usb.c
> > @@ -8,6 +8,7 @@
> > #include <linux/module.h>
> > #include <linux/kernel.h>
> > #include <linux/io.h>
> > +#include <linux/iopoll.h>
> > #include <linux/uaccess.h>
> > #include <linux/device.h>
> > #include <linux/proc_fs.h>
> > @@ -135,8 +136,8 @@ static int mv_otg_set_timer(struct mv_otg *mvotg, unsigned int id,
> >
> > static int mv_otg_reset(struct mv_otg *mvotg)
> > {
> > - unsigned int loops;
> > u32 tmp;
> > + int ret;
> >
> > /* Stop the controller */
> > tmp = readl(&mvotg->op_regs->usbcmd);
> > @@ -146,15 +147,12 @@ static int mv_otg_reset(struct mv_otg *mvotg)
> > /* Reset the controller to get default values */
> > writel(USBCMD_CTRL_RESET, &mvotg->op_regs->usbcmd);
> >
> > - loops = 500;
> > - while (readl(&mvotg->op_regs->usbcmd) & USBCMD_CTRL_RESET) {
> > - if (loops == 0) {
> > - dev_err(&mvotg->pdev->dev,
> > + ret = readl_poll_timeout_atomic(&mvotg->op_regs->usbcmd, tmp,
> > + (tmp & USBCMD_CTRL_RESET), 10, 10000);
> > + if (ret < 0) {
> > + dev_err(&mvotg->pdev->dev,
> > "Wait for RESET completed TIMEOUT\n");
>
> You forgot to re-align this argument, it should start under & on the
> previous line...
Yes, will fix it, thanks
>
> [...]
>
> MBR, Sergei
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next prev parent reply other threads:[~2020-08-21 1:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-20 5:45 [PATCH v2 01/11] usb: early: convert to readl_poll_timeout_atomic() Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 02/11] usb: early: ehci-dbgp: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 03/11] usb: pci-quirks: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 04/11] usb: xhci-rcar: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 05/11] usb: oxu210hp-hcd: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 06/11] usb: fotg210-hcd: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 07/11] usb: isp1760-hcd: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 08/11] usb: phy-ulpi-viewport: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 09/11] usb: phy: phy-mv-usb: " Chunfeng Yun
2020-08-20 10:17 ` Sergei Shtylyov
2020-08-21 1:52 ` Chunfeng Yun [this message]
2020-08-20 5:45 ` [PATCH v2 10/11] usb: udc: net2280: " Chunfeng Yun
2020-08-20 5:45 ` [PATCH v2 11/11] iopoll: update kerneldoc of read_poll_timeout_atomic() Chunfeng Yun
2020-08-20 10:14 ` Sergei Shtylyov
2020-08-21 1:43 ` Chunfeng Yun
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