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[209.132.180.67]) by mx.google.com with ESMTP id p6-v6si45496510plk.429.2018.11.21.09.46.34; Wed, 21 Nov 2018 09:46:58 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730446AbeKVBLQ (ORCPT + 99 others); Wed, 21 Nov 2018 20:11:16 -0500 Received: from metis.ext.pengutronix.de ([85.220.165.71]:45605 "EHLO metis.ext.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728843AbeKVBLQ (ORCPT ); Wed, 21 Nov 2018 20:11:16 -0500 Received: from gallifrey.ext.pengutronix.de ([2001:67c:670:201:5054:ff:fe8d:eefb] helo=bjornoya.blackshift.org) by metis.ext.pengutronix.de with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1gPTcA-0002yK-MB; Wed, 21 Nov 2018 15:36:26 +0100 Received: from [IPv6:2003:c7:71e:febd:c591:f55c:bb67:31f5] (unknown [IPv6:2003:c7:71e:febd:c591:f55c:bb67:31f5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (Client CN "mkl@blackshift.org", Issuer "StartCom Class 1 Client CA" (not verified)) (Authenticated sender: mkl@blackshift.org) by smtp.blackshift.org (Postfix) with ESMTPSA id B59DE391F47; Wed, 21 Nov 2018 14:36:23 +0000 (UTC) To: Joakim Zhang , "wg@grandegger.com" , "davem@davemloft.net" Cc: "linux-can@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , dl-linux-imx , "A.s. Dong" References: <20181019094326.28185-1-qiangqing.zhang@nxp.com> From: Marc Kleine-Budde Openpgp: preference=signencrypt Autocrypt: addr=mkl@pengutronix.de; prefer-encrypt=mutual; keydata= mQINBFFVq30BEACtnSvtXHoeHJxG6nRULcvlkW6RuNwHKmrqoksispp43X8+nwqIFYgb8UaX zu8T6kZP2wEIpM9RjEL3jdBjZNCsjSS6x1qzpc2+2ivjdiJsqeaagIgvy2JWy7vUa4/PyGfx QyUeXOxdj59DvLwAx8I6hOgeHx2X/ntKAMUxwawYfPZpP3gwTNKc27dJWSomOLgp+gbmOmgc 6U5KwhAxPTEb3CsT5RicsC+uQQFumdl5I6XS+pbeXZndXwnj5t84M+HEj7RN6bUfV2WZO/AB Xt5+qFkC/AVUcj/dcHvZwQJlGeZxoi4veCoOT2MYqfR0ax1MmN+LVRvKm29oSyD4Ts/97cbs XsZDRxnEG3z/7Winiv0ZanclA7v7CQwrzsbpCv+oj+zokGuKasofzKdpywkjAfSE1zTyF+8K nxBAmzwEqeQ3iKqBc3AcCseqSPX53mPqmwvNVS2GqBpnOfY7Mxr1AEmxdEcRYbhG6Xdn+ACq Dq0Db3A++3PhMSaOu125uIAIwMXRJIzCXYSqXo8NIeo9tobk0C/9w3fUfMTrBDtSviLHqlp8 eQEP8+TDSmRP/CwmFHv36jd+XGmBHzW5I7qw0OORRwNFYBeEuiOIgxAfjjbLGHh9SRwEqXAL kw+WVTwh0MN1k7I9/CDVlGvc3yIKS0sA+wudYiselXzgLuP5cQARAQABtCZNYXJjIEtsZWlu ZS1CdWRkZSA8bWtsQHBlbmd1dHJvbml4LmRlPokCVAQTAQoAPgIbAwIeAQIXgAULCQgHAwUV CgkICwUWAgMBABYhBMFAC6CzmJ5vvH1bXCte4hHFiupUBQJabjnbBQkK/nszAAoJECte4hHF iupU7UUQAIMmYURs8mpBKFKOFhWZczuCRt7vueMkyj9voaipD/vrbeYBVFr4dvFeoodQCKSi 4/cHN3LIC8j1n0JGyQ8LsV2cHbZUd3Wcdw4KMsDMSVk9unAjahfX1MyB7qPgUDlW1jYrapFm eTNE1hp1+TAKL8W/E4rahhf3fdJxlS3h1CSnbfEavBQXBUi8jKX3G6mub2BSJUe3smAEb8JC 3Td3+jzgCDK+dPwMeusxjU/JT5j/gCUbmGAGojex/P1dSfrMjLX2MhQpd6b/K28mymb1Zr34 TGetLHn6eE5yvW5XXYX9p1zpwhdhQ+bsnOo6HhlPzWsEkd/fK9InyfBN+yflJBnROv6Uk34O nsh3TaX5hdIcCfOqpvSETY23quJKsL9Sng0xJ6jdCW6diIr6Kl154ijdOkPtYNKYTdDX3CYy Jc0WjG0lh6q5zOUGdm0SuRLi9fGTyhUUmR862XVX0XqZjxllWwk+UI5I6bge2AUpKP+7zxr5 0OLBHHGkCq/NYJS/6lt34qrbHcoRgUDOk/ZSIRNQQdsHEsuKTyrJxmpXFJMxx3LKdZ1z4xqP 9Gm9Ifrbdx8bD8KhwN6CFnUBylI9BawAH3egnD5HpOU3dLcFT2mPY/E15WSA/8Pn0QllCZ0/ CYTcepOVHv1SWTSemA4I5sFMMhkmAFWdIdSRX1oZXJKcuQENBFpuQT4BCAC1d43/wNxcuZEr FCxRQCTxyFHkAdOETPThyBuGIbTCOk94R6whDwEPUnpKqdaTuNChTbFxZEthXBJiAhD9nDoU o5gBxZJWoqnLyzfQANIfjYFEw+j/T9Sx3Z96p3/KDaDDAXryt97taTX8czWBqYdQfG6UwjTK cMw5yQ2WzgO0hKkFDLyRXZAoP7jIiVm8JVNNdnQXH0MzQIRAcAS0JNYSC/Vppx3w84GvxAD6 cx95aByHNnR5gbyciq4pHuUsqw1YC0Wakd2f2L6HnaYYvtFypHLNO8a1YVfsY+1h6D2ul7P6 AGUbUQghaf5khgYpBfTi4YbQgKyxOZoYYfh8ssPVABEBAAGJAjwEGAEKACYWIQTBQAugs5ie b7x9W1wrXuIRxYrqVAUCWm5BPgIbDAUJAeXlcgAKCRArXuIRxYrqVL9ZD/oD+32+N0ijZQ8p /RaRjPtSnAs6irNRGE1ZKcKpiM76eRFJrN7HvfFiDFmUpSh+8bDyM5kc/Z1AXhXlf0VBT24N ZLBXXaFl/M4HKkJTc+PA3yYgb06ChfMWst5h8rfa7htqAhLUby2MTyfJ0xcAptCWTnW0OCGj EL4ZKr8Ml/fjKYP7hp37iBXwwQF3lSSdjMsEjMT/9/9Ip2+uJ559F8pCmFV5wNgHRH+jnxII iUILoQMDn42cygozxfh14GwCqUSPW+EqBb7YOWreWA3D3kbXtIwV7/ZXT7L0n/0OTx9pK9K/ C2jleQxaep8bHmHqTEEqkrC0rNhocTcrnOYviEO0TkHvSqtNMaM3KnOL3Nsb6rgqDpj2BVWk rIqMPi0aXfBu/ArZsAios/0QHB56Id3BshIbs1A2VNmFgrxkhKjwJ8A7geD5PXn0cur08byy 64Kk7ii0iwbJZasPfVLPLmMEVjiSOgZv4hbKyecWVwtlMh3k4rkMuSVDDr+2E9KQXS2REfe7 jTF9WUzFhm0HYiYSiiQyHuZPLc6t/L9OqvrNVTdYaEkBsm/LVv6h6rqpklJLQhU/2KtLbImH 8IQK6+7up2rtwyqeehbNdsiqyDA6Sso5eKCoxKKbAFM7PtEYMC2Kv6wAca5SqEOUtRHU/6jK eO1yNpD5UgI9bzazBn1mwrkBDQRabkElAQgA2DC6TvbKcisVld/bvetQmVseRAjC38ccfMim N4Be5XG18y6STUlbpCVAjKx8944bJiEQb0AId1drMfsD/yGtIB3gxuGnzgm/bAaMd8U/XP/l j7AwbgdcZYt1o/BYb9RUd1nj8nFhpn2HjxGz8NgK92OQvlKQYCZF4x0fCPYfs6N8qpR9rISj 9sfJa/HnpOu6WCke0xW99+j3GmNPizKMELbsRJweg61emL8GnU4l5lq3nKEYgcjHiWiVeu0/ 7LmK2g13ih7f7htRNLbXVz4FNKQ5Tqd/DjHhYMFZTRArRQn/wvEYzAWadULy6paxqoLk4nHO MNixgVGAfM/c3q4t4wARAQABiQNyBBgBCgAmFiEEwUALoLOYnm+8fVtcK17iEcWK6lQFAlpu QSUCGwIFCQHl5YsBQAkQK17iEcWK6lTAdCAEGQEKAB0WIQQ2sKd2UH9WcARa4fmT0hTXNChl 8QUCWm5BJQAKCRCT0hTXNChl8V6ECADMpDZNCd1ssogUiPdOlOxOOysj/9vclhsoId8Xtb7T PmMFjEFdnqJuAHdZ6WkXc/aot5xhhEwJCOQrfsgNAji2KCVOg1pxAeOoIsoAx145xuPsz7Fc 7wTYNSlkFeaJ8F0eKpCJH6BEQebo5C9oLq5JvAg/4oKJ9AxZgh7Dup6BAiP2sKRclTfm046A eDjEYli+M5FRXZ7PVzil4x9VYkk9KII1xBdHSt178HvRHEUB91CDXSvOgWI9+OTmsmAYls8M IY2Xia6fLwBUspdg6m5BF7OTOTj5mSSWo5EsGsecQkkhGwiP0r1Gr5qbKmXlXPbIkjlxsvAu ohKIpEWK2M5OaRkP/iDSpREo5/StBenBUv+2QrhLP+uZJKiz5xbQ9Meo1l9z+bK1/5AGKca5 5M1APub2n0awP3MMDGMETTYK2RANsuuLxpD7uohzZf7m4iGz9V9EIBqkunuCpHHNhiZDK04R Oc5TMmKWFUvlXdFGwUOAydu8j/JcT+09GGU3vku2uHXHddI5vqe9Z/8JofC/XYviHIquo7P1 THmpjsGLIbBUq+mJ6xJgNLJcwNP9JbFZMXunFLlp7ZTVTiuTYhC/dBIfTJGIMjNClpWqHHn9 bGYsrNPtOmvNjwodRTQx2kengSL7ANk9BbA6DReFpWmPKLR/QJ8ucSJ9/np4Yn074rpxkWQD LTTOv87eT2ypBZaEDCGt3K7OBuknECovWTvkOTnMrb78QS8QqXvbVuiR+iITkIrMLG2FdGzy 6mXwwCEJxn5s9Y5Y31hPGlQnYDPAuYMrDVBRsIQVwAsWpV83vKjp4WFP4wC1LEYj+j/Oorqv ALsMRq49WSclOMvqDdh//wmfSAbkyn3EA6EMv9mxJHJvKW7PMXvO0Mk1uP/+VR3FudMXhZzz MUYlqpO3B/RmA7lPoMY5+Km8c4/6L9Bn0vcbGMH4piH0IuEK0px64oXtKfti47XrCX+EDpSn ZwhEnNjCKyAJTaangebRpvOwJUZUWVh+hpM5FMcwJGKvVXNmrmSj Subject: Re: [PATCH] can: flexcan: Implement CAN Runtime PM Message-ID: <24a43a20-7302-c449-06b3-5ee8f6c051a0@pengutronix.de> Date: Wed, 21 Nov 2018 15:36:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.3.0 MIME-Version: 1.0 In-Reply-To: <20181019094326.28185-1-qiangqing.zhang@nxp.com> Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="N1L7IZFo3w1vy5ZVSXaomCo97WEV248H6" X-SA-Exim-Connect-IP: 2001:67c:670:201:5054:ff:fe8d:eefb X-SA-Exim-Mail-From: mkl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-kernel@vger.kernel.org Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --N1L7IZFo3w1vy5ZVSXaomCo97WEV248H6 Content-Type: multipart/mixed; boundary="pwLVP2vQ93tDZ7QegnZmjuh8YZF3IYYuK"; protected-headers="v1" From: Marc Kleine-Budde To: Joakim Zhang , "wg@grandegger.com" , "davem@davemloft.net" Cc: "linux-can@vger.kernel.org" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , dl-linux-imx , "A.s. Dong" Message-ID: <24a43a20-7302-c449-06b3-5ee8f6c051a0@pengutronix.de> Subject: Re: [PATCH] can: flexcan: Implement CAN Runtime PM References: <20181019094326.28185-1-qiangqing.zhang@nxp.com> In-Reply-To: <20181019094326.28185-1-qiangqing.zhang@nxp.com> --pwLVP2vQ93tDZ7QegnZmjuh8YZF3IYYuK Content-Type: text/plain; charset=utf-8 Content-Language: de-DE Content-Transfer-Encoding: quoted-printable On 10/19/18 11:45 AM, Joakim Zhang wrote: > From: Dong Aisheng >=20 > Flexcan will be disabled during suspend if no wakeup function required > and enabled after resume accordingly. During this period, we could > explicitly disable clocks. >=20 > Implement Runtime PM which will: > 1) Keep device in suspend state (clocks disabled) if it's not openned > 2) Make Power Domain framework be able to shutdown the corresponding po= wer > domain of this device. Without CONFIG_PM the device fails to probe: > [ 214.420606] flexcan 2090000.flexcan: 2090000.flexcan supply xceiver = not found, using dummy regulator > [ 214.445952] flexcan 2090000.flexcan: Linked as a consumer to regulat= or.0 > [ 214.453448] flexcan 2090000.flexcan: registering netdev failed > [ 214.459666] flexcan 2090000.flexcan: Dropping the link to regulator.= 0 > [ 214.472066] flexcan: probe of 2090000.flexcan failed with error -110= Marc --=20 Pengutronix e.K. | Marc Kleine-Budde | Industrial Linux Solutions | Phone: +49-231-2826-924 | Vertretung West/Dortmund | Fax: +49-5121-206917-5555 | Amtsgericht Hildesheim, HRA 2686 | http://www.pengutronix.de | --pwLVP2vQ93tDZ7QegnZmjuh8YZF3IYYuK-- --N1L7IZFo3w1vy5ZVSXaomCo97WEV248H6 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCgAdFiEENrCndlB/VnAEWuH5k9IU1zQoZfEFAlv1bWMACgkQk9IU1zQo ZfHWswgAyHLljeXDdcQ80nVvPc3J/jzTOUqcRBJIP7RwQ3wUJvJH/vWX9H/T77Ht LuTcUfz081bJ5Dv4QcdAqQ80dbGtQjRhpmjVgbgDT3/q9hksyE+cq0JYXJ9gzusM CEUptfd1umX2fpkwNKuFz3BO34uChKcv0VZjRmuvHzKXJUf06Ho69K3/NcBLTV+O dJFMF1vdRg5/usnV5ZbinppaEONhvKmxXJNHpQcyBpSwCHqQySW+Afy7+tugczZ3 xJ+1PR+6BPdtYOYzFnJyeu6tOxs+dyRwdQtqUfbpxeODHnlPZKqdY5pdVzyuwEGx Qr7VSEjhYBARxZRJXSTMZPwaQYzS8g== =ImTB -----END PGP SIGNATURE----- --N1L7IZFo3w1vy5ZVSXaomCo97WEV248H6--