>From 946bac7ddcc387a15c1391e416b54c3041798883 Mon Sep 17 00:00:00 2001 From: Adrian Hunter <adrian.hunter@xxxxxxxxx> Date: Sun, 31 May 2009 19:27:36 +0300 Subject: [PATCH] omap_hsmmc: ensure all clock enables and disables are paired Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> --- drivers/mmc/host/omap_hsmmc.c | 26 ++++++++++++++------------ 1 files changed, 14 insertions(+), 12 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 32d5aef..abe1fa1 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -735,22 +735,24 @@ static int omap_hsmmc_switch_opcond(struct omap_hsmmc_host *host, int vdd) /* Disable the clocks */ clk_disable(host->fclk); clk_disable(host->iclk); - clk_disable(host->dbclk); + if (host->dbclk_enabled) + clk_disable(host->dbclk); /* Turn the power off */ ret = mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0); - if (ret != 0) - goto err; /* Turn the power ON with given VDD 1.8 or 3.0v */ - ret = mmc_slot(host).set_power(host->dev, host->slot_id, 1, vdd); + if (!ret) + ret = mmc_slot(host).set_power(host->dev, host->slot_id, 1, + vdd); + clk_enable(host->iclk); + if (host->dbclk_enabled) + clk_enable(host->dbclk); + clk_enable(host->fclk); + if (ret != 0) goto err; - clk_enable(host->fclk); - clk_enable(host->iclk); - clk_enable(host->dbclk); - OMAP_HSMMC_WRITE(host->base, HCTL, OMAP_HSMMC_READ(host->base, HCTL) & SDVSCLR); reg_val = OMAP_HSMMC_READ(host->base, HCTL); @@ -1901,7 +1903,8 @@ static int omap_hsmmc_suspend(struct platform_device *pdev, pm_message_t state) OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP); mmc_host_disable(host->mmc); clk_disable(host->iclk); - clk_disable(host->dbclk); + if (host->dbclk_enabled) + clk_disable(host->dbclk); } else { host->suspended = 0; if (host->pdata->resume) { @@ -1932,9 +1935,8 @@ static int omap_hsmmc_resume(struct platform_device *pdev) if (ret) goto clk_en_err; - if (clk_enable(host->dbclk) != 0) - dev_dbg(mmc_dev(host->mmc), - "Enabling debounce clk failed\n"); + if (host->dbclk_enabled) + clk_enable(host->dbclk); if (mmc_host_enable(host->mmc) != 0) { clk_disable(host->iclk); -- 1.5.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html