summaryrefslogtreecommitdiffstats
path: root/drivers/mmc
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci-esdhc-imx.c54
1 files changed, 41 insertions, 13 deletions
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 23d8b8a73ae9..b5c724184c39 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1250,14 +1250,20 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
pltfm_host->clk = imx_data->clk_per;
pltfm_host->clock = clk_get_rate(pltfm_host->clk);
- clk_prepare_enable(imx_data->clk_per);
- clk_prepare_enable(imx_data->clk_ipg);
- clk_prepare_enable(imx_data->clk_ahb);
+ err = clk_prepare_enable(imx_data->clk_per);
+ if (err)
+ goto free_sdhci;
+ err = clk_prepare_enable(imx_data->clk_ipg);
+ if (err)
+ goto disable_per_clk;
+ err = clk_prepare_enable(imx_data->clk_ahb);
+ if (err)
+ goto disable_ipg_clk;
imx_data->pinctrl = devm_pinctrl_get(&pdev->dev);
if (IS_ERR(imx_data->pinctrl)) {
err = PTR_ERR(imx_data->pinctrl);
- goto disable_clk;
+ goto disable_ahb_clk;
}
imx_data->pins_default = pinctrl_lookup_state(imx_data->pinctrl,
@@ -1297,13 +1303,13 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
else
err = sdhci_esdhc_imx_probe_nondt(pdev, host, imx_data);
if (err)
- goto disable_clk;
+ goto disable_ahb_clk;
sdhci_esdhc_imx_hwinit(host);
err = sdhci_add_host(host);
if (err)
- goto disable_clk;
+ goto disable_ahb_clk;
pm_runtime_set_active(&pdev->dev);
pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
@@ -1313,10 +1319,12 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
return 0;
-disable_clk:
- clk_disable_unprepare(imx_data->clk_per);
- clk_disable_unprepare(imx_data->clk_ipg);
+disable_ahb_clk:
clk_disable_unprepare(imx_data->clk_ahb);
+disable_ipg_clk:
+ clk_disable_unprepare(imx_data->clk_ipg);
+disable_per_clk:
+ clk_disable_unprepare(imx_data->clk_per);
free_sdhci:
sdhci_pltfm_free(pdev);
return err;
@@ -1393,14 +1401,34 @@ static int sdhci_esdhc_runtime_resume(struct device *dev)
struct sdhci_host *host = dev_get_drvdata(dev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct pltfm_imx_data *imx_data = sdhci_pltfm_priv(pltfm_host);
+ int err;
if (!sdhci_sdio_irq_enabled(host)) {
- clk_prepare_enable(imx_data->clk_per);
- clk_prepare_enable(imx_data->clk_ipg);
+ err = clk_prepare_enable(imx_data->clk_per);
+ if (err)
+ return err;
+ err = clk_prepare_enable(imx_data->clk_ipg);
+ if (err)
+ goto disable_per_clk;
}
- clk_prepare_enable(imx_data->clk_ahb);
+ err = clk_prepare_enable(imx_data->clk_ahb);
+ if (err)
+ goto disable_ipg_clk;
+ err = sdhci_runtime_resume_host(host);
+ if (err)
+ goto disable_ahb_clk;
+
+ return 0;
- return sdhci_runtime_resume_host(host);
+disable_ahb_clk:
+ clk_disable_unprepare(imx_data->clk_ahb);
+disable_ipg_clk:
+ if (!sdhci_sdio_irq_enabled(host))
+ clk_disable_unprepare(imx_data->clk_ipg);
+disable_per_clk:
+ if (!sdhci_sdio_irq_enabled(host))
+ clk_disable_unprepare(imx_data->clk_per);
+ return err;
}
#endif