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Thu, 27 Dec 2018 11:35:58 +0000 Received: from VI1PR04MB5040.eurprd04.prod.outlook.com ([fe80::cd3d:ce97:132b:7148]) by VI1PR04MB5040.eurprd04.prod.outlook.com ([fe80::cd3d:ce97:132b:7148%3]) with mapi id 15.20.1471.019; Thu, 27 Dec 2018 11:35:58 +0000 From: BOUGH CHEN To: "adrian.hunter@intel.com" , "ulf.hansson@linaro.org" CC: "linux-mmc@vger.kernel.org" , dl-linux-imx Subject: [PATCH] mmc: sdhci-esdhc-imx: restore pin state when resume back Thread-Topic: [PATCH] mmc: sdhci-esdhc-imx: restore pin state when resume back Thread-Index: AQHUndhVR8rheBRiDUukcpsutbq3zg== Date: Thu, 27 Dec 2018 11:35:58 +0000 Message-ID: <20181227114256.711-1-haibo.chen@nxp.com> Accept-Language: zh-CN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.17.1 x-clientproxiedby: HK2PR0302CA0016.apcprd03.prod.outlook.com (2603:1096:202::26) To VI1PR04MB5040.eurprd04.prod.outlook.com (2603:10a6:803:59::33) authentication-results: spf=none (sender IP is ) smtp.mailfrom=haibo.chen@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: EOzrVC1txak68LGrhn2EQixDXrJzRprQX4tDMroPtqEV1xcWisf6N4U9vPr6v+ZPlw/c2YJ28QPDvo76JH+gBt9Dcs4lA46u6PB0CfdLr+9rFrqnpf/Djt63/V3utiRYZyqxmjNywUiWMWJhxpL0XKbahEr5opaKvzg20b7VUnT9viErRyLJpzafkqH/ocWogr/AzZNv4Bsu5vLBezwjYJeinHDxvHJhuIIBb78lQdCYiCKo3x4npqs3awY4PrTL2KiOCY3yUMdgmHb0pIfBVbRdjE6Z+Ld6qyS6ZrTHHo/beomcHxX8OBvEMUtGxai9 spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: d7c446c9-8cae-4432-5ede-08d66bef7834 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Dec 2018 11:35:58.1810 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4639 Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In some low power mode, SoC will lose the pin state, so need to restore the pin state when resume back. Signed-off-by: Haibo Chen --- drivers/mmc/host/sdhci-esdhc-imx.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 984cc1a788cb..7cfcc8618e45 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -1392,17 +1392,23 @@ static int sdhci_esdhc_imx_remove(struct platform_device *pdev) static int sdhci_esdhc_suspend(struct device *dev) { struct sdhci_host *host = dev_get_drvdata(dev); + int ret; if (host->tuning_mode != SDHCI_TUNING_MODE_3) mmc_retune_needed(host->mmc); - return sdhci_suspend_host(host); + ret = sdhci_suspend_host(host); + pinctrl_pm_select_sleep_state(dev); + + return ret; } static int sdhci_esdhc_resume(struct device *dev) { struct sdhci_host *host = dev_get_drvdata(dev); + pinctrl_pm_select_default_state(dev); + /* re-initialize hw state in case it's lost in low power mode */ sdhci_esdhc_imx_hwinit(host);