diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/sh_mmcif.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 6a93b046685..3ffb92fc084 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -910,6 +910,19 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq) sh_mmcif_start_cmd(host, mrq); } +static int sh_mmcif_clk_update(struct sh_mmcif_host *host) +{ + int ret = clk_enable(host->hclk); + + if (!ret) { + host->clk = clk_get_rate(host->hclk); + host->mmc->f_max = host->clk / 2; + host->mmc->f_min = host->clk / 512; + } + + return ret; +} + static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) { struct sh_mmcif_host *host = mmc_priv(mmc); @@ -955,7 +968,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) if (!host->power) { if (p->set_pwr) p->set_pwr(host->pd, ios->power_mode); - clk_enable(host->hclk); + sh_mmcif_clk_update(host); pm_runtime_get_sync(&host->pd->dev); host->power = true; sh_mmcif_sync_reset(host); @@ -1308,10 +1321,9 @@ static int __devinit sh_mmcif_probe(struct platform_device *pdev) dev_err(&pdev->dev, "cannot get clock \"%s\": %d\n", clk_name, ret); goto eclkget; } - clk_enable(host->hclk); - host->clk = clk_get_rate(host->hclk); - mmc->f_max = host->clk / 2; - mmc->f_min = host->clk / 512; + ret = sh_mmcif_clk_update(host); + if (ret < 0) + goto eclkupdate; ret = pm_runtime_resume(&pdev->dev); if (ret < 0) @@ -1353,6 +1365,7 @@ ereqirq0: pm_runtime_suspend(&pdev->dev); eresume: clk_disable(host->hclk); +eclkupdate: clk_put(host->hclk); eclkget: pm_runtime_disable(&pdev->dev); |