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From:   Yinbo Zhu <yinbo.zhu@nxp.com>
To:     Alan Stern <stern@rowland.harvard.edu>
CC:     Yinbo Zhu <yinbo.zhu@nxp.com>, Xiaobo Xie <xiaobo.xie@nxp.com>,
        Jerry Huang <jerry.huang@nxp.com>,
        Ran Wang <ran.wang_1@nxp.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Ramneek Mehresh <ramneek.mehresh@freescale.com>,
        Nikhil Badola <nikhil.badola@freescale.com>,
        Suresh Gupta <suresh.gupta@freescale.com>,
        "linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 6/6] usb :fsl: Change string format for errata property
Thread-Topic: [PATCH v2 6/6] usb :fsl: Change string format for errata
 property
Thread-Index: AQHUsXOfbjL2T1lCNUuHKjRpLt03xA==
Date:   Mon, 21 Jan 2019 10:25:25 +0000
Message-ID: <20190121102601.4735-6-yinbo.zhu@nxp.com>
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From: Nikhil Badola <nikhil.badola@freescale.com>

Remove USB errata checking code from driver. Applicability of erratum
is retrieved by reading corresponding property in device tree.
This property is written during device tree fixup.

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Signed-off-by: Yinbo Zhu <yinbo.zhu@nxp.com>
---
 drivers/usb/host/ehci-fsl.c      |    7 +------
 drivers/usb/host/fsl-mph-dr-of.c |    9 ++++-----
 2 files changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 6884130..c71680e 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -310,14 +310,9 @@ static int ehci_fsl_usb_setup(struct ehci_hcd *ehci)
 			return -EINVAL;
=20
 	if (pdata->operating_mode =3D=3D FSL_USB2_MPH_HOST) {
-		unsigned int chip, rev, svr;
-
-		svr =3D mfspr(SPRN_SVR);
-		chip =3D svr >> 16;
-		rev =3D (svr >> 4) & 0xf;
=20
 		/* Deal with USB Erratum #14 on MPC834x Rev 1.0 & 1.1 chips */
-		if ((rev =3D=3D 1) && (chip >=3D 0x8050) && (chip <=3D 0x8055))
+		if (pdata->has_fsl_erratum_14 =3D=3D 1)
 			ehci->has_fsl_port_bug =3D 1;
=20
 		if (pdata->port_enables & FSL_USB2_PORT0_ENABLED)
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr=
-of.c
index 7e07701..ae8f60f 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -224,11 +224,10 @@ static int fsl_usb2_mph_dr_of_probe(struct platform_d=
evice *ofdev)
 		of_property_read_bool(np, "fsl,usb-erratum-a005275");
 	pdata->has_fsl_erratum_a005697 =3D
 		of_property_read_bool(np, "fsl,usb_erratum-a005697");
-
-	if (of_get_property(np, "fsl,erratum_a006918", NULL))
-		pdata->has_fsl_erratum_a006918 =3D 1;
-	else
-		pdata->has_fsl_erratum_a006918 =3D 0;
+	pdata->has_fsl_erratum_a006918 =3D
+		of_property_read_bool(np, "fsl,usb_erratum-a006918");
+	pdata->has_fsl_erratum_14 =3D
+		of_property_read_bool(np, "fsl,usb_erratum-14");
=20
 	/*
 	 * Determine whether phy_clk_valid needs to be checked
--=20
1.7.1