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Sat, 3 Mar 2018 18:50:58 -0500 Received: from mail-by2nam01on0133.outbound.protection.outlook.com ([104.47.34.133]:49841 "EHLO NAM01-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933982AbeCCWdL (ORCPT ); Sat, 3 Mar 2018 17:33:11 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Roger Quadros , Tero Kristo , Tony Lindgren , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 082/219] ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss Thread-Topic: [PATCH AUTOSEL for 4.9 082/219] ARM: DRA7: hwmod_data: Prevent wait_target_disable error for usb_otg_ss Thread-Index: AQHTsz78GNSXM/2rAESoEzKdu61ixQ== Date: Sat, 3 Mar 2018 22:28:43 +0000 Message-ID: <20180303222716.26640-82-alexander.levin@microsoft.com> References: <20180303222716.26640-1-alexander.levin@microsoft.com> In-Reply-To: <20180303222716.26640-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;MW2PR2101MB1097;7:Qog918xv2C5jXgSNjrZPe8kJQ6vaFJkBuiy3i3rjnwqAMOMrjxaSprJL6ZYNcvNkbXNJObNsW9JK69Jmqnk/cV6/QRfQOIekG/+uBQDb72v3lrga+7TfGASHiH2NsgbeWqR07FJNLMAY0CT0tgLvh/aRDNoeZy9MHfK2FQDsOVEqDOz2+CbU8CAoHQIx3XeP2AJ+gAw4/J/I6i1ibU/R1u3X3AG50JX5YICPyhR/AFhTBEW677RtPM1rEe6dsCV3 x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: abb503de-00ac-4142-b51c-08d58156bd69 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(4534165)(4627221)(201703031133081)(201702281549075)(48565401081)(5600026)(4604075)(3008032)(2017052603307)(7193020);SRVR:MW2PR2101MB1097; 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x-microsoft-antispam-message-info: 2HnT/jpq5oBdLdnQumAlOyiv2Sa/5cYmLYNpafZQNXy47yFAx28PJ3qVZQrvji9Je5MBNhgDHyU+SeMiwibuwKSyhZQRLItjHA0SF8Rt2iGQdr3lsvgld79d9Psc7Y2N6wCwwGYTwTB+rG/vfLFEVvRWFutAu3GOeR81KJH9U8E= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: abb503de-00ac-4142-b51c-08d58156bd69 X-MS-Exchange-CrossTenant-originalarrivaltime: 03 Mar 2018 22:28:43.5569 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW2PR2101MB1097 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Roger Quadros [ Upstream commit e2d54fe76997301b49311bde7ba8ef52b47896f9 ] It seems that if L3_INIT clkdomain is kept in HW_AUTO while usb_otg_ss is in use then there are random chances that the usb_otg_ss module will fail to completely idle. i.e. IDLEST =3D 0x2 instead of 0x3. Preventing L3_INIT from HW_AUTO while usb_otg_ss module is in use fixes this issue. We don't know yet if usb_otg_ss instances 3 and 4 are affected by this issue or not so don't add this flag for those instances. Cc: Tero Kristo Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren Signed-off-by: Sasha Levin --- arch/arm/mach-omap2/omap_hwmod_7xx_data.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap= 2/omap_hwmod_7xx_data.c index 1ab7096af8e2..39137231f2b2 100644 --- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c @@ -2572,6 +2572,7 @@ static struct omap_hwmod dra7xx_usb_otg_ss1_hwmod =3D= { .class =3D &dra7xx_usb_otg_ss_hwmod_class, .clkdm_name =3D "l3init_clkdm", .main_clk =3D "dpll_core_h13x2_ck", + .flags =3D HWMOD_CLKDM_NOAUTO, .prcm =3D { .omap4 =3D { .clkctrl_offs =3D DRA7XX_CM_L3INIT_USB_OTG_SS1_CLKCTRL_OFFSET, @@ -2593,6 +2594,7 @@ static struct omap_hwmod dra7xx_usb_otg_ss2_hwmod =3D= { .class =3D &dra7xx_usb_otg_ss_hwmod_class, .clkdm_name =3D "l3init_clkdm", .main_clk =3D "dpll_core_h13x2_ck", + .flags =3D HWMOD_CLKDM_NOAUTO, .prcm =3D { .omap4 =3D { .clkctrl_offs =3D DRA7XX_CM_L3INIT_USB_OTG_SS2_CLKCTRL_OFFSET, --=20 2.14.1