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Mon, 29 Jun 2020 02:49:30 +0000 From: Yoshihiro Shimoda To: Mark Brown CC: "ulf.hansson@linaro.org" , "lgirdwood@gmail.com" , "geert+renesas@glider.be" , "magnus.damm@gmail.com" , "linux-mmc@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-renesas-soc@vger.kernel.org" Subject: RE: [PATCH/RFC v4 3/4] mmc: core: Call mmc_poweroff_nofity() if regulators are disabled Thread-Topic: [PATCH/RFC v4 3/4] mmc: core: Call mmc_poweroff_nofity() if regulators are disabled Thread-Index: AQHWS5y2P9SOm+4ShEmD+FQrAiQE9qjrAYcAgAPlY2A= Date: Mon, 29 Jun 2020 02:49:30 +0000 Message-ID: References: <1593163942-5087-1-git-send-email-yoshihiro.shimoda.uh@renesas.com> <1593163942-5087-4-git-send-email-yoshihiro.shimoda.uh@renesas.com> <20200626151342.GF5289@sirena.org.uk> In-Reply-To: <20200626151342.GF5289@sirena.org.uk> Accept-Language: ja-JP, en-US Content-Language: ja-JP X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: kernel.org; dkim=none (message not signed) header.d=none;kernel.org; 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x-ms-exchange-antispam-messagedata: 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 x-ms-exchange-transport-forked: True Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: renesas.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: TY2PR01MB3692.jpnprd01.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: efb09d15-6652-4777-ccd3-08d81bd70c37 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Jun 2020 02:49:30.8348 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 53d82571-da19-47e4-9cb4-625a166a4a2a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: BDw5C5sN6f6uGPgKvIlqQhJhFBaQkY4NJWKtjlzwb5//jjBJ68fwFxFtOfUzAOZJGR0vW/dbGqNMBoOUQaW2jzSPhHN8feUXgtjFQC7ZYEjIJZQ/W2hSa3IOGBYmJGz9 X-MS-Exchange-Transport-CrossTenantHeadersStamped: TYAPR01MB4221 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Mark, > From: Mark Brown, Sent: Saturday, June 27, 2020 12:14 AM >=20 > On Fri, Jun 26, 2020 at 06:32:21PM +0900, Yoshihiro Shimoda wrote: > > Note that this is possible to happen when the regulator-fixed driver > > turns the vmmc and vqmmc off by firmware like PSCI while the system > > is suspended. >=20 > This is not a good interface, if there's a need to query the state over > suspend then we should query the state over suspend rather than trying > to somehow shoehorn it via the runtime enable state which is going to > break any other users and relies on the regulator driver doing dodgy > stuff representing the enable state. I understood it. So, as I mentioned other email thread, I'm thinking adding a new property into MMC is better. Best regards, Yoshihiro Shimoda