Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754392AbaJCP5a (ORCPT ); Fri, 3 Oct 2014 11:57:30 -0400 Received: from mail-wi0-f173.google.com ([209.85.212.173]:38407 "EHLO mail-wi0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754109AbaJCPz7 (ORCPT ); Fri, 3 Oct 2014 11:55:59 -0400 From: Sebastian Hesselbarth To: Sebastian Hesselbarth Cc: Chris Ball , Ulf Hansson , Antoine Tenart , linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 08/12] mmc: sdhci-pxav3: Get optional core clock Date: Fri, 3 Oct 2014 17:55:43 +0200 Message-Id: <1412351747-4188-9-git-send-email-sebastian.hesselbarth@gmail.com> In-Reply-To: <1412351747-4188-1-git-send-email-sebastian.hesselbarth@gmail.com> References: <1412351747-4188-1-git-send-email-sebastian.hesselbarth@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Besides the I/O clock, some PXAv3 SDHCI IP also requires a core clock to be enabled. Add an optional core clock to the corresponding driver. Signed-off-by: Sebastian Hesselbarth --- Cc: Chris Ball Cc: Ulf Hansson Cc: Antoine Tenart Cc: linux-mmc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/mmc/host/sdhci-pxav3.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 3dfd97977515..ad0badad0ebc 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -59,6 +59,7 @@ #define SDCE_MISC_INT_EN (1<<1) struct sdhci_pxa { + struct clk *clk_core; struct clk *clk_io; u8 power_mode; }; @@ -320,6 +321,10 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) pltfm_host->clk = pxa->clk_io; clk_prepare_enable(pxa->clk_io); + pxa->clk_core = devm_clk_get(dev, "core"); + if (!IS_ERR(pxa->clk_core)) + clk_prepare_enable(pxa->clk_core); + /* enable 1/8V DDR capable */ host->mmc->caps |= MMC_CAP_1_8V_DDR; @@ -392,6 +397,8 @@ err_add_host: err_of_parse: err_cd_req: clk_disable_unprepare(pxa->clk_io); + if (!IS_ERR(pxa->clk_core)) + clk_disable_unprepare(pxa->clk_core); err_clk_get: err_mbus_win: sdhci_pltfm_free(pdev); @@ -409,6 +416,8 @@ static int sdhci_pxav3_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); clk_disable_unprepare(pxa->clk_io); + if (!IS_ERR(pxa->clk_core)) + clk_disable_unprepare(pxa->clk_core); sdhci_pltfm_free(pdev); @@ -456,6 +465,8 @@ static int sdhci_pxav3_runtime_suspend(struct device *dev) spin_unlock_irqrestore(&host->lock, flags); clk_disable_unprepare(pxa->clk_io); + if (!IS_ERR(pxa->clk_core)) + clk_disable_unprepare(pxa->clk_core); return 0; } @@ -468,6 +479,8 @@ static int sdhci_pxav3_runtime_resume(struct device *dev) unsigned long flags; clk_prepare_enable(pxa->clk_io); + if (!IS_ERR(pxa->clk_core)) + clk_prepare_enable(pxa->clk_core); spin_lock_irqsave(&host->lock, flags); host->runtime_suspended = false; -- 2.1.1 -- 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/