diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci_f_sdh30.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c index 3f5977979cf2..7f4553b28180 100644 --- a/drivers/mmc/host/sdhci_f_sdh30.c +++ b/drivers/mmc/host/sdhci_f_sdh30.c @@ -14,6 +14,7 @@ #include <linux/of.h> #include <linux/property.h> #include <linux/clk.h> +#include <linux/reset.h> #include "sdhci-pltfm.h" #include "sdhci_f_sdh30.h" @@ -21,6 +22,7 @@ struct f_sdhost_priv { struct clk *clk_iface; struct clk *clk; + struct reset_control *rst; u32 vendor_hs200; struct device *dev; bool enable_cmd_dat_delay; @@ -150,6 +152,16 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev) ret = clk_prepare_enable(priv->clk); if (ret) goto err_clk; + + priv->rst = devm_reset_control_get_optional_shared(dev, NULL); + if (IS_ERR(priv->rst)) { + ret = PTR_ERR(priv->rst); + goto err_rst; + } + + ret = reset_control_deassert(priv->rst); + if (ret) + goto err_rst; } /* init vendor specific regs */ @@ -175,6 +187,8 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev) return 0; err_add_host: + reset_control_assert(priv->rst); +err_rst: clk_disable_unprepare(priv->clk); err_clk: clk_disable_unprepare(priv->clk_iface); @@ -191,8 +205,9 @@ static int sdhci_f_sdh30_remove(struct platform_device *pdev) sdhci_remove_host(host, readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff); - clk_disable_unprepare(priv->clk_iface); + reset_control_assert(priv->rst); clk_disable_unprepare(priv->clk); + clk_disable_unprepare(priv->clk_iface); sdhci_free_host(host); platform_set_drvdata(pdev, NULL); |