From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Felipe Balbi <balbi@kernel.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
linux-usb@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
Mathias Nyman <mathias.nyman@intel.com>,
Sumit Garg <sumit.garg@linaro.org>,
linux-kernel@vger.kernel.org, Jann Horn <jannh@google.com>,
Chuhong Yuan <hslester96@gmail.com>,
Douglas Anderson <dianders@chromium.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Saurav Girepunje <saurav.girepunje@gmail.com>,
Chunfeng Yun <chunfeng.yun@mediatek.com>,
Jason Yan <yanaijie@huawei.com>,
linux-mediatek@lists.infradead.org,
"Eric W. Biederman" <ebiederm@xmission.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
Ben Dooks <ben.dooks@codethink.co.uk>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH RESEND v3 08/11] usb: phy-ulpi-viewport: convert to readl_poll_timeout_atomic()
Date: Thu, 10 Sep 2020 16:21:49 +0800 [thread overview]
Message-ID: <1599726112-4439-8-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1599726112-4439-1-git-send-email-chunfeng.yun@mediatek.com>
Use readl_poll_timeout_atomic() to simplify code
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v2~v3: no changes
---
drivers/usb/phy/phy-ulpi-viewport.c | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/phy/phy-ulpi-viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c
index 7a14e0e..0f61e32 100644
--- a/drivers/usb/phy/phy-ulpi-viewport.c
+++ b/drivers/usb/phy/phy-ulpi-viewport.c
@@ -7,6 +7,7 @@
#include <linux/kernel.h>
#include <linux/usb.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
@@ -20,16 +21,9 @@
static int ulpi_viewport_wait(void __iomem *view, u32 mask)
{
- unsigned long usec = 2000;
+ u32 val;
- while (usec--) {
- if (!(readl(view) & mask))
- return 0;
-
- udelay(1);
- }
-
- return -ETIMEDOUT;
+ return readl_poll_timeout_atomic(view, val, !(val & mask), 1, 2000);
}
static int ulpi_viewport_read(struct usb_phy *otg, u32 reg)
--
1.9.1
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next prev parent reply other threads:[~2020-09-10 8:30 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-10 8:21 [PATCH RESEND v3 01/11] usb: early: convert to readl_poll_timeout_atomic() Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 02/11] usb: early: ehci-dbgp: " Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 03/11] usb: pci-quirks: " Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 04/11] usb: xhci-rcar: " Chunfeng Yun
2020-09-10 12:56 ` Yoshihiro Shimoda
2020-09-11 2:21 ` Chunfeng Yun
2020-09-10 13:12 ` Daniel Thompson
2020-09-11 2:33 ` Chunfeng Yun
2020-09-11 3:13 ` Yoshihiro Shimoda
2020-09-11 4:12 ` Chunfeng Yun
2020-09-11 4:57 ` Yoshihiro Shimoda
2020-09-11 11:46 ` Chunfeng Yun
2020-09-11 8:34 ` Daniel Thompson
2020-09-11 9:27 ` Chunfeng Yun
2020-09-11 9:48 ` Daniel Thompson
2020-09-11 9:58 ` Yoshihiro Shimoda
2020-09-10 8:21 ` [PATCH RESEND v3 05/11] usb: oxu210hp-hcd: " Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 06/11] usb: fotg210-hcd: " Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 07/11] usb: isp1760-hcd: " Chunfeng Yun
2020-09-10 8:21 ` Chunfeng Yun [this message]
2020-09-10 8:21 ` [PATCH RESEND v3 09/11] usb: phy: phy-mv-usb: " Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 10/11] usb: udc: net2280: " Chunfeng Yun
2020-09-10 8:21 ` [PATCH RESEND v3 11/11] iopoll: update kerneldoc of read_poll_timeout_atomic() Chunfeng Yun
2020-09-10 10:49 ` [PATCH RESEND v3 01/11] usb: early: convert to readl_poll_timeout_atomic() Jann Horn
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