linux-kernel - [PATCH v2 01/10] phy: qcom-ufs: remove failure when rx/tx_iface

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1476800897-19898-2-git-send-email-vivek.gautam@codeaurora.org>
Date:   Tue, 18 Oct 2016 19:58:08 +0530
From:   Vivek Gautam <vivek.gautam@...eaurora.org>
To:     kishon@...com, jejb@...ux.vnet.ibm.com, vinholikatti@...il.com,
        martin.petersen@...cle.com, linux-kernel@...r.kernel.org
Cc:     subhashj@...eaurora.org, linux-scsi@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, Yaniv Gardi <ygardi@...eaurora.org>,
        Vivek Gautam <vivek.gautam@...eaurora.org>
Subject: [PATCH v2 01/10] phy: qcom-ufs: remove failure when rx/tx_iface_clk are absent

From: Yaniv Gardi <ygardi@...eaurora.org>

Since in future UFS Phy's the tx_iface_clk and rx_iface_clk
are no longer exist, we should not fail when their initialization
fail, but rather just report with debug message.

Signed-off-by: Yaniv Gardi <ygardi@...eaurora.org>
Signed-off-by: Vivek Gautam <vivek.gautam@...eaurora.org>
---

No change since v1.

 drivers/phy/phy-qcom-ufs.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c
index 107cb57..183ec04 100644
--- a/drivers/phy/phy-qcom-ufs.c
+++ b/drivers/phy/phy-qcom-ufs.c
@@ -186,16 +186,27 @@ ufs_qcom_phy_init_clks(struct phy *generic_phy,
 		       struct ufs_qcom_phy *phy_common)
 {
 	int err;
+	struct ufs_qcom_phy *phy = get_ufs_qcom_phy(generic_phy);
 
 	err = ufs_qcom_phy_clk_get(generic_phy, "tx_iface_clk",
 				   &phy_common->tx_iface_clk);
+	/*
+	 * tx_iface_clk does not exist in newer version of ufs-phy HW,
+	 * so don't return error if it is not found
+	 */
 	if (err)
-		goto out;
+		dev_dbg(phy->dev, "%s: failed to get tx_iface_clk\n",
+			__func__);
 
 	err = ufs_qcom_phy_clk_get(generic_phy, "rx_iface_clk",
 				   &phy_common->rx_iface_clk);
+	/*
+	 * rx_iface_clk does not exist in newer version of ufs-phy HW,
+	 * so don't return error if it is not found
+	 */
 	if (err)
-		goto out;
+		dev_dbg(phy->dev, "%s: failed to get rx_iface_clk\n",
+			__func__);
 
 	err = ufs_qcom_phy_clk_get(generic_phy, "ref_clk_src",
 				   &phy_common->ref_clk_src);
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project