Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751833AbaKFI60 (ORCPT ); Thu, 6 Nov 2014 03:58:26 -0500 Received: from eusmtp01.atmel.com ([212.144.249.242]:62947 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750901AbaKFI6Y (ORCPT ); Thu, 6 Nov 2014 03:58:24 -0500 From: Wenyou Yang To: , CC: , , , , , , Subject: [PATCH] mmc: atmel-mci: adopt pinctrl support Date: Thu, 6 Nov 2014 16:52:52 +0800 Message-ID: <1415263973-15012-1-git-send-email-wenyou.yang@atmel.com> X-Mailer: git-send-email 1.7.9.5 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 Amend the atmel mci pin controller to optionally take a pin control handle and set the state of the pins to: - "default" on boot, resume and before performing an transfer. - "sleep" on suspend(). This should make it possible to optimize energy usage for the pins both for the suspend/resume cycle. Signed-off-by: Wenyou Yang --- drivers/mmc/host/atmel-mci.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 4df1599..eb4bfbc 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -39,6 +39,7 @@ #include #include #include +#include #include #include @@ -2385,6 +2386,8 @@ static int __init atmci_probe(struct platform_device *pdev) int irq; int ret, i; + pinctrl_pm_select_default_state(&pdev->dev); + regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!regs) return -ENXIO; @@ -2568,6 +2571,8 @@ static int atmci_runtime_suspend(struct device *dev) clk_disable_unprepare(host->mck); + pinctrl_pm_select_sleep_state(dev); + return 0; } @@ -2575,6 +2580,8 @@ static int atmci_runtime_resume(struct device *dev) { struct atmel_mci *host = dev_get_drvdata(dev); + pinctrl_pm_select_default_state(dev); + return clk_prepare_enable(host->mck); } #endif -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/