From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Lin Subject: [RESEND PATCH 2/9] mmc: dw_mmc-rockchip: add runtime PM support Date: Sun, 9 Oct 2016 21:58:19 +0800 Message-ID: <1476021506-869-3-git-send-email-shawn.lin@rock-chips.com> References: <1476021506-869-1-git-send-email-shawn.lin@rock-chips.com> Return-path: Received: from lucky1.263xmail.com ([211.157.147.130]:47267 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751064AbcJINyK (ORCPT ); Sun, 9 Oct 2016 09:54:10 -0400 In-Reply-To: <1476021506-869-1-git-send-email-shawn.lin@rock-chips.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Jaehoon Chung , Ulf Hansson Cc: linux-mmc@vger.kernel.org, Doug Anderson , linux-rockchip@lists.infradead.org, Shawn Lin This patch adds runtime PM support for dw_mmc-rockchip. Signed-off-by: Shawn Lin --- drivers/mmc/host/dw_mmc-rockchip.c | 57 ++++++++++++++++++++++++++++++++++++-- 1 file changed, 54 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c index 25eae35..28e0220 100644 --- a/drivers/mmc/host/dw_mmc-rockchip.c +++ b/drivers/mmc/host/dw_mmc-rockchip.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "dw_mmc.h" @@ -325,6 +326,7 @@ static int dw_mci_rockchip_probe(struct platform_device *pdev) { const struct dw_mci_drv_data *drv_data; const struct of_device_id *match; + int ret; if (!pdev->dev.of_node) return -ENODEV; @@ -332,16 +334,65 @@ static int dw_mci_rockchip_probe(struct platform_device *pdev) match = of_match_node(dw_mci_rockchip_match, pdev->dev.of_node); drv_data = match->data; - return dw_mci_pltfm_register(pdev, drv_data); + pm_runtime_get_noresume(&pdev->dev); + pm_runtime_set_active(&pdev->dev); + pm_runtime_enable(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 50); + pm_runtime_use_autosuspend(&pdev->dev); + + ret = dw_mci_pltfm_register(pdev, drv_data); + if (ret) { + pm_runtime_disable(&pdev->dev); + pm_runtime_set_suspended(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + return ret; + } + + pm_runtime_put_autosuspend(&pdev->dev); + + return 0; +} + +static int dw_mci_rockchip_remove(struct platform_device *pdev) +{ + pm_runtime_get_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + + return dw_mci_pltfm_remove(pdev); } +#ifdef CONFIG_PM +static int dw_mci_rockchip_runtime_suspend(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + + return dw_mci_runtime_suspend(host); +} + +static int dw_mci_rockchip_runtime_resume(struct device *dev) +{ + struct dw_mci *host = dev_get_drvdata(dev); + + return dw_mci_runtime_resume(host); +} +#endif /* CONFIG_PM */ + +static const struct dev_pm_ops dw_mci_rockchip_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, + pm_runtime_force_resume) + SET_RUNTIME_PM_OPS(dw_mci_rockchip_runtime_suspend, + dw_mci_rockchip_runtime_resume, + NULL) +}; + static struct platform_driver dw_mci_rockchip_pltfm_driver = { .probe = dw_mci_rockchip_probe, - .remove = dw_mci_pltfm_remove, + .remove = dw_mci_rockchip_remove, .driver = { .name = "dwmmc_rockchip", .of_match_table = dw_mci_rockchip_match, - .pm = &dw_mci_pltfm_pmops, + .pm = &dw_mci_rockchip_dev_pm_ops, }, }; -- 2.3.7