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Thu, 10 Sep 2020 00:34:05 -0800 Received: from MTKMBS31DR.mediatek.inc (172.27.6.102) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 10 Sep 2020 01:24:04 -0700 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 10 Sep 2020 16:24:01 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 10 Sep 2020 16:24:00 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman Subject: [PATCH RESEND v3 03/11] usb: pci-quirks: convert to readl_poll_timeout_atomic() Date: Thu, 10 Sep 2020 16:21:44 +0800 Message-ID: <1599726112-4439-3-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1599726112-4439-1-git-send-email-chunfeng.yun@mediatek.com> References: <1599726112-4439-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: D8E101BFE2F788B63AD5617A9332290E2362D4EC28CE6A38C9B5E42E2FA50F632000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200910_043413_891525_EE29969B X-CRM114-Status: GOOD ( 14.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Felipe Balbi , Daniel Thompson , linux-usb@vger.kernel.org, Mathias Nyman , Arnd Bergmann , Mathias Nyman , Sumit Garg , linux-kernel@vger.kernel.org, Jann Horn , Chuhong Yuan , Douglas Anderson , "Gustavo A. R. Silva" , Saurav Girepunje , Chunfeng Yun , Jason Yan , linux-mediatek@lists.infradead.org, "Eric W. Biederman" , Matthias Brugger , Lee Jones , Ben Dooks , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use readl_poll_timeout_atomic() to simplify code Cc: Mathias Nyman Signed-off-by: Chunfeng Yun --- v2~v3: no changes --- drivers/usb/host/pci-quirks.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index b8961c0..8920566 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -16,6 +16,7 @@ #include #include #include +#include #include @@ -1012,15 +1013,9 @@ static int handshake(void __iomem *ptr, u32 mask, u32 done, { u32 result; - do { - result = readl(ptr); - result &= mask; - if (result == done) - return 0; - udelay(delay_usec); - wait_usec -= delay_usec; - } while (wait_usec > 0); - return -ETIMEDOUT; + return readl_poll_timeout_atomic(ptr, result, + ((result & mask) == done), + delay_usec, wait_usec); } /* -- 1.9.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel