diff options
Diffstat (limited to 'drivers/mci')
| -rw-r--r-- | drivers/mci/tegra-sdmmc.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mci/tegra-sdmmc.c b/drivers/mci/tegra-sdmmc.c index e4d82197bd..0ea0b5ca4a 100644 --- a/drivers/mci/tegra-sdmmc.c +++ b/drivers/mci/tegra-sdmmc.c @@ -28,6 +28,7 @@ #include <mci.h> #include <of_gpio.h> #include <linux/clk.h> +#include <linux/reset.h> #include "sdhci.h" @@ -62,6 +63,7 @@ struct tegra_sdmmc_host { struct mci_host mci; void __iomem *regs; struct clk *clk; + struct reset_control *reset; int gpio_cd, gpio_pwr; }; #define to_tegra_sdmmc_host(mci) container_of(mci, struct tegra_sdmmc_host, mci) @@ -400,6 +402,10 @@ static int tegra_sdmmc_probe(struct device_d *dev) if (IS_ERR(host->clk)) return PTR_ERR(host->clk); + host->reset = reset_control_get(dev, NULL); + if (IS_ERR(host->reset)) + return PTR_ERR(host->reset); + host->regs = dev_request_mem_region(dev, 0); if (!host->regs) { dev_err(dev, "could not get iomem region\n"); @@ -430,6 +436,9 @@ static int tegra_sdmmc_probe(struct device_d *dev) } clk_enable(host->clk); + reset_control_assert(host->reset); + udelay(2); + reset_control_deassert(host->reset); mci->init = tegra_sdmmc_init; mci->card_present = tegra_sdmmc_card_present; |