linux-kernel - [PATCH 5.2 03/45] phy: qcom-qmp: Raise qcom_qmp_phy

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Message-Id: <20190929135025.438428669@linuxfoundation.org>
Date:   Sun, 29 Sep 2019 15:55:31 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Marc Gonzalez <marc.w.gonzalez@...e.fr>,
        Kishon Vijay Abraham I <kishon@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.2 03/45] phy: qcom-qmp: Raise qcom_qmp_phy_enable() polling delay

From: Marc Gonzalez <marc.w.gonzalez@...e.fr>

[ Upstream commit 5206026404190125436f81088eb3667076e56083 ]

readl_poll_timeout() calls usleep_range() to sleep between reads.
usleep_range() doesn't work efficiently for tiny values.

Raise the polling delay in qcom_qmp_phy_enable() to bring it in line
with the delay in qcom_qmp_phy_com_init().

Signed-off-by: Marc Gonzalez <marc.w.gonzalez@...e.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 43abdfd0deed9..99b3bc04d215a 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -1549,7 +1549,7 @@ static int qcom_qmp_phy_enable(struct phy *phy)
 	status = pcs + cfg->regs[QPHY_PCS_READY_STATUS];
 	mask = cfg->mask_pcs_ready;
 
-	ret = readl_poll_timeout(status, val, val & mask, 1,
+	ret = readl_poll_timeout(status, val, val & mask, 10,
 				 PHY_INIT_COMPLETE_TIMEOUT);
 	if (ret) {
 		dev_err(qmp->dev, "phy initialization timed-out\n");
-- 
2.20.1