From 0dcaa2499b7d111bd70da5b0976c34210c850fb3 Mon Sep 17 00:00:00 2001 From: Daniel Drake Date: Thu, 27 Jun 2013 11:46:29 -0400 Subject: [PATCH] sdhci-pxav3: Fix runtime PM initialization Commit bb691ae464b77d30e74c66480e98d74e88d6b194 breaks boot on OLPC XO-4, it hangs somewhere inside sdhci_add_host. When pm_runtime_set_autosuspend_delay() was being called, the device's usage counter was 0, causing the PM layer to runtime-suspend the device. We then went on to call sdhci_add_host() on a suspended device, which hung. Fix this by making the driver consistent with the omap_hsmmc driver, both in terms of runtime PM initialization and error handling. Now the device is not runtime-suspended until we exit the probe routine. Signed-off-by: Daniel Drake Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-pxav3.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index d29f81097334..bf99359a3a90 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -287,18 +287,15 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) } } - pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); pm_runtime_set_autosuspend_delay(&pdev->dev, PXAV3_RPM_DELAY_MS); pm_runtime_use_autosuspend(&pdev->dev); pm_suspend_ignore_children(&pdev->dev, 1); - pm_runtime_get_noresume(&pdev->dev); ret = sdhci_add_host(host); if (ret) { dev_err(&pdev->dev, "failed to add host\n"); - pm_runtime_forbid(&pdev->dev); - pm_runtime_disable(&pdev->dev); goto err_add_host; } @@ -318,6 +315,8 @@ static int sdhci_pxav3_probe(struct platform_device *pdev) err_of_parse: err_cd_req: err_add_host: + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); clk_disable_unprepare(clk); clk_put(clk); err_clk_get: -- 2.30.2