diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-st.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-st.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/mmc/host/sdhci-st.c b/drivers/mmc/host/sdhci-st.c index 68c36c9fa231..c32daed0d418 100644 --- a/drivers/mmc/host/sdhci-st.c +++ b/drivers/mmc/host/sdhci-st.c @@ -371,7 +371,7 @@ static int sdhci_st_probe(struct platform_device *pdev) if (IS_ERR(icnclk)) icnclk = NULL; - rstc = devm_reset_control_get(&pdev->dev, NULL); + rstc = devm_reset_control_get_exclusive(&pdev->dev, NULL); if (IS_ERR(rstc)) rstc = NULL; else @@ -394,8 +394,17 @@ static int sdhci_st_probe(struct platform_device *pdev) goto err_of; } - clk_prepare_enable(clk); - clk_prepare_enable(icnclk); + ret = clk_prepare_enable(clk); + if (ret) { + dev_err(&pdev->dev, "Failed to prepare clock\n"); + goto err_of; + } + + ret = clk_prepare_enable(icnclk); + if (ret) { + dev_err(&pdev->dev, "Failed to prepare icn clock\n"); + goto err_icnclk; + } /* Configure the FlashSS Top registers for setting eMMC TX/RX delay */ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, @@ -429,6 +438,7 @@ static int sdhci_st_probe(struct platform_device *pdev) err_out: clk_disable_unprepare(icnclk); +err_icnclk: clk_disable_unprepare(clk); err_of: sdhci_pltfm_free(pdev); @@ -487,9 +497,17 @@ static int sdhci_st_resume(struct device *dev) struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct st_mmc_platform_data *pdata = sdhci_pltfm_priv(pltfm_host); struct device_node *np = dev->of_node; + int ret; + + ret = clk_prepare_enable(pltfm_host->clk); + if (ret) + return ret; - clk_prepare_enable(pltfm_host->clk); - clk_prepare_enable(pdata->icnclk); + ret = clk_prepare_enable(pdata->icnclk); + if (ret) { + clk_disable_unprepare(pltfm_host->clk); + return ret; + } if (pdata->rstc) reset_control_deassert(pdata->rstc); |