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Thu, 8 Mar 2018 00:06:54 -0500 Received: from mail-cys01nam02hn0204.outbound.protection.outlook.com ([104.47.37.204]:8367 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755278AbeCHFGu (ORCPT ); Thu, 8 Mar 2018 00:06:50 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Kishon Vijay Abraham I , Bjorn Helgaas , Sasha Levin Subject: [PATCH AUTOSEL for 4.4 061/101] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Thread-Topic: [PATCH AUTOSEL for 4.4 061/101] ARM: DRA7: clockdomain: Change the CLKTRCTRL of CM_PCIE_CLKSTCTRL to SW_WKUP Thread-Index: AQHTtpqV0fXiVdUpC0Kn3mpIkjy7TQ== Date: Thu, 8 Mar 2018 05:01:57 +0000 Message-ID: <20180308050023.8548-61-alexander.levin@microsoft.com> References: <20180308050023.8548-1-alexander.levin@microsoft.com> In-Reply-To: <20180308050023.8548-1-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;DM5PR2101MB1016;7:e9VefMp2kYCiftEuqhKsCZEutUlXrBaDscNlrsNz3VRVW0FR3ZAKa0yJXzuKrwUSPxq0b82XHRhPkMnm3X8lXOKGLWvFwPW6mPPFA/081x0ceVSQdRY2DJna9NS+XsYF9bbT0kvvoG8f6LTSOMpVOe9ZzBdlKPcMEuzL7eWzQN2117VDVYhYEryQT1p3B38o8ZS1Lo7/9a5ijG4Kug4gAjOnYmQOfA+YsaS4cN1A3eI4LS7qexULWnFpSlGBVNpz;20:tp0YjYoihrGZLnQJx1CyHrO7pduHsQGS/eSGD9gihY3+I+sTXb13acAGCC1/7QuvjBi3flgw3kruFqgqviqzsk1pIbb2l0dA9GTAgmVdW51w0GZMRpntZdIRoSmtKYizwSSAeoOebjjaXCPEN+/2abUaiPXgP4iR80GSLUiynEI= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: b090c894-7487-42c6-cf0f-08d584b26487 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB1016; 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x-microsoft-antispam-message-info: HpNHb6qlSVVwLLQbQKI8DaXBnJpauQ6UCJQVOuwm3PuWlI+gJxOpTNgS/uYYPUmeKJMjoXjczRkD9ID8asla/tW/t4euddLdimBV9nFfnzRU38rYqm6BMIKaHAMehPzd1GL9ZtkbBxXzEp15Bk7GBopuFmKSRPp60BE/X1PEe0OINaM3w3UqlJSv0dwXdJj8NWsk7h6EROBx2rPGtak3FVO25lua8NJJiHSnYOXNPm0n82gJFKGOs8j3kh6cZkPVeSf3vkSkIsQFlIyMqOpApHSlAZGXAC68pEQ3gZ+nLRZRCqkH+cce3aBqdeDy7YJ8Gl64QEHXFiGFqBQMRHEo/lzZGm/TidF4FblHJ/5ZsCZfeN9OTzTZUo9bhIfMY4+SABhqKaONsqyBepPzSFoKzA== spamdiagnosticoutput: 1:22 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: b090c894-7487-42c6-cf0f-08d584b26487 X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Mar 2018 05:01:57.2413 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1016 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: Kishon Vijay Abraham I [ Upstream commit 2c949ce38f4e81d7487f165fa3b8f77d74a2a6c4 ] The PCIe programming sequence in TRM suggests CLKSTCTRL of PCIe should be set to SW_WKUP. There are no issues when CLKSTCTRL is set to HW_AUTO in RC mode. However in EP mode, the host system is not able to access the MEMSPACE and setting the CLKSTCTRL to SW_WKUP fixes it. Acked-by: Tony Lindgren Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Bjorn Helgaas Signed-off-by: Sasha Levin --- arch/arm/mach-omap2/clockdomains7xx_data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/clockdomains7xx_data.c b/arch/arm/mach-oma= p2/clockdomains7xx_data.c index 7581e036bda6..70e3b711e79c 100644 --- a/arch/arm/mach-omap2/clockdomains7xx_data.c +++ b/arch/arm/mach-omap2/clockdomains7xx_data.c @@ -524,7 +524,7 @@ static struct clockdomain pcie_7xx_clkdm =3D { .dep_bit =3D DRA7XX_PCIE_STATDEP_SHIFT, .wkdep_srcs =3D pcie_wkup_sleep_deps, .sleepdep_srcs =3D pcie_wkup_sleep_deps, - .flags =3D CLKDM_CAN_HWSUP_SWSUP, + .flags =3D CLKDM_CAN_SWSUP, }; =20 static struct clockdomain atl_7xx_clkdm =3D { --=20 2.14.1