From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933409AbeEWQJg (ORCPT ); Wed, 23 May 2018 12:09:36 -0400 Received: from esa4.microchip.iphmx.com ([68.232.154.123]:43344 "EHLO esa4.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751646AbeEWQJd (ORCPT ); Wed, 23 May 2018 12:09:33 -0400 X-IronPort-AV: E=Sophos;i="5.49,433,1520924400"; d="scan'208";a="14275990" From: Claudiu Beznea To: , , , , , , CC: , , , Claudiu Beznea Subject: [PATCH] mtd: atmel-quadspi: add suspend/resume hooks Date: Wed, 23 May 2018 19:08:48 +0300 Message-ID: <1527091728-19895-1-git-send-email-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement suspend/resume hooks. Signed-off-by: Claudiu Beznea --- drivers/mtd/spi-nor/atmel-quadspi.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/mtd/spi-nor/atmel-quadspi.c b/drivers/mtd/spi-nor/atmel-quadspi.c index 6c5708bacad8..85d7610fb920 100644 --- a/drivers/mtd/spi-nor/atmel-quadspi.c +++ b/drivers/mtd/spi-nor/atmel-quadspi.c @@ -737,6 +737,28 @@ static int atmel_qspi_remove(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int atmel_qspi_suspend(struct device *dev) +{ + struct atmel_qspi *aq = dev_get_drvdata(dev); + + clk_disable_unprepare(aq->clk); + + return 0; +} + +static int atmel_qspi_resume(struct device *dev) +{ + struct atmel_qspi *aq = dev_get_drvdata(dev); + + clk_prepare_enable(aq->clk); + + return atmel_qspi_init(aq); +} +#endif + +static SIMPLE_DEV_PM_OPS(atmel_qspi_pm_ops, atmel_qspi_suspend, + atmel_qspi_resume); static const struct of_device_id atmel_qspi_dt_ids[] = { { .compatible = "atmel,sama5d2-qspi" }, @@ -749,6 +771,7 @@ static struct platform_driver atmel_qspi_driver = { .driver = { .name = "atmel_qspi", .of_match_table = atmel_qspi_dt_ids, + .pm = &atmel_qspi_pm_ops, }, .probe = atmel_qspi_probe, .remove = atmel_qspi_remove, -- 2.7.4