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Fri, 17 Jul 2020 06:04:51 +0000 Received: from DM6PR11MB3963.namprd11.prod.outlook.com ([fe80::714f:fa64:4fd8:c9df]) by DM6PR11MB3963.namprd11.prod.outlook.com ([fe80::714f:fa64:4fd8:c9df%6]) with mapi id 15.20.3195.022; Fri, 17 Jul 2020 06:04:51 +0000 From: "Mani, Rajmohan" To: Greg Kroah-Hartman CC: Darren Hart , Andy Shevchenko , Mika Westerberg , Dmitry Torokhov , Lee Jones , Ayman Bagabas , Masahiro Yamada , "Joseph, Jithu" , =?iso-8859-2?Q?Bla=BE_Hrastnik?= , Srinivas Pandruvada , "linux-kernel@vger.kernel.org" , "platform-driver-x86@vger.kernel.org" , Heikki Krogerus , "linux-usb@vger.kernel.org" , "pmalani@chromium.org" , "bleung@chromium.org" Subject: RE: [PATCH 2/2] usb: typec: intel_pmc_mux: Check the port status before connect Thread-Topic: [PATCH 2/2] usb: typec: intel_pmc_mux: Check the port status before connect Thread-Index: AQHWWz+GMlKLLCj8UEiQgrY2PIsTTakLSa1A Date: Fri, 17 Jul 2020 06:04:51 +0000 Message-ID: References: <20200716003310.26125-1-rajmohan.mani@intel.com> <20200716003310.26125-3-rajmohan.mani@intel.com> <20200716070508.GB962748@kroah.com> In-Reply-To: <20200716070508.GB962748@kroah.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.2.0.6 authentication-results: linuxfoundation.org; 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x-ms-exchange-antispam-messagedata: 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 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: DM6PR11MB3963.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 214d073f-cca6-48a4-a05d-08d82a1751d2 X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Jul 2020 06:04:51.7787 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: QxEjoXIO2rXfcPYj5vS9nkCTpXa1PyZvTIWzhX7Jdt2Qg0E3pd64ZIH6Ymcq4dcug2RXHZg45f9IItwEUs8tXw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR11MB3962 X-OriginatorOrg: intel.com Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Greg, > -----Original Message----- > From: Greg Kroah-Hartman > Sent: Thursday, July 16, 2020 12:05 AM > To: Mani, Rajmohan > Cc: Darren Hart ; Andy Shevchenko > ; Mika Westerberg > ; Dmitry Torokhov > ; Lee Jones ; Ayman > Bagabas ; Masahiro Yamada > ; Joseph, Jithu ; Bla=BE > Hrastnik ; Srinivas Pandruvada > ; linux-kernel@vger.kernel.org; > platform-driver-x86@vger.kernel.org; Heikki Krogerus > ; linux-usb@vger.kernel.org; > pmalani@chromium.org; bleung@chromium.org > Subject: Re: [PATCH 2/2] usb: typec: intel_pmc_mux: Check the port status > before connect >=20 > On Wed, Jul 15, 2020 at 05:33:10PM -0700, Rajmohan Mani wrote: > > From: Heikki Krogerus > > > > The PMC microcontroller that we use for configuration, does not supply > > any status information back. For port status we need to talk to > > another controller on the board called IOM (I/O manager). > > > > By checking the port status before configuring the muxes, we can make > > sure that we do not reconfigure the port after bootup when the system > > firmware (for example BIOS) has already configured it. > > > > Using the status information also to check if DisplayPort HPD is still > > asserted when the cable plug is disconnected, and clearing it if it > > is. > > > > Signed-off-by: Heikki Krogerus >=20 > You can't just forward on patches from others without also adding your > signed-off-by to them, right? >=20 Sorry I missed this. > Please fix up this series and try again. >=20 Ack. Will fix this with v2. > thanks, >=20 > greg k-h