From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f194.google.com ([209.85.128.194]:56324 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751186AbdKJV7A (ORCPT ); Fri, 10 Nov 2017 16:59:00 -0500 From: Marek Vasut To: linux-pci@vger.kernel.org Cc: Marek Vasut , Geert Uytterhoeven , Phil Edworthy , Simon Horman , Wolfram Sang , linux-renesas-soc@vger.kernel.org Subject: [PATCH V2 1/5] PCI: rcar: Poll more often in rcar_pcie_wait_for_dl() Date: Fri, 10 Nov 2017 22:58:39 +0100 Message-Id: <20171110215843.432-2-marek.vasut+renesas@gmail.com> In-Reply-To: <20171110215843.432-1-marek.vasut+renesas@gmail.com> References: <20171110215843.432-1-marek.vasut+renesas@gmail.com> Sender: linux-pci-owner@vger.kernel.org List-ID: The data link active signal usually takes ~20 uSec to be asserted, poll the bit more often to avoid useless delays in this function. Signed-off-by: Marek Vasut Cc: Geert Uytterhoeven Cc: Phil Edworthy Cc: Simon Horman Cc: Wolfram Sang Cc: linux-renesas-soc@vger.kernel.org --- V2: New patch --- drivers/pci/host/pcie-rcar.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c index e00f865952d5..351e1276b90a 100644 --- a/drivers/pci/host/pcie-rcar.c +++ b/drivers/pci/host/pcie-rcar.c @@ -531,13 +531,13 @@ static void phy_write_reg(struct rcar_pcie *pcie, static int rcar_pcie_wait_for_dl(struct rcar_pcie *pcie) { - unsigned int timeout = 10; + unsigned int timeout = 10000; while (timeout--) { if ((rcar_pci_read_reg(pcie, PCIETSTR) & DATA_LINK_ACTIVE)) return 0; - msleep(5); + udelay(5); } return -ETIMEDOUT; -- 2.11.0