diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-tegra.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-tegra.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c index 343c97edba3..c9d4d282041 100644 --- a/drivers/mmc/host/sdhci-tegra.c +++ b/drivers/mmc/host/sdhci-tegra.c @@ -18,8 +18,10 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/gpio.h> +#include <linux/of_gpio.h> #include <linux/mmc/card.h> #include <linux/mmc/host.h> +#include <linux/slab.h> #include <mach/gpio.h> #include <mach/sdhci.h> @@ -216,6 +218,33 @@ out: return rc; } +static int tegra_sdhci_pltfm_dt_init(struct sdhci_host *host, + struct sdhci_pltfm_data *pdata) +{ + struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc)); + struct tegra_sdhci_platform_data *plat; + + if (pdev->dev.platform_data) { + dev_err(&pdev->dev, "%s: platform_data not NULL; aborting\n", + __func__); + return -ENODEV; + } + + plat = kzalloc(sizeof(*plat), GFP_KERNEL); + if (!plat) + return -ENOMEM; + pdev->dev.platform_data = plat; + + plat->cd_gpio = of_get_gpio(pdev->dev.of_node, 0); + plat->wp_gpio = of_get_gpio(pdev->dev.of_node, 1); + plat->power_gpio = of_get_gpio(pdev->dev.of_node, 2); + + dev_info(&pdev->dev, "using gpios cd=%i, wp=%i power=%i\n", + plat->cd_gpio, plat->wp_gpio, plat->power_gpio); + + return tegra_sdhci_pltfm_init(host, pdata); +} + static void tegra_sdhci_pltfm_exit(struct sdhci_host *host) { struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); @@ -244,6 +273,16 @@ static void tegra_sdhci_pltfm_exit(struct sdhci_host *host) clk_put(pltfm_host->clk); } +static void tegra_sdhci_pltfm_dt_exit(struct sdhci_host *host) +{ + struct platform_device *pdev = to_platform_device(mmc_dev(host->mmc)); + + tegra_sdhci_pltfm_exit(host); + + kfree(pdev->dev.platform_data); + pdev->dev.platform_data = NULL; +} + static struct sdhci_ops tegra_sdhci_ops = { .get_ro = tegra_sdhci_get_ro, .read_l = tegra_sdhci_readl, @@ -261,3 +300,13 @@ struct sdhci_pltfm_data sdhci_tegra_pdata = { .init = tegra_sdhci_pltfm_init, .exit = tegra_sdhci_pltfm_exit, }; + +struct sdhci_pltfm_data sdhci_tegra_dt_pdata = { + .quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL | + SDHCI_QUIRK_SINGLE_POWER_WRITE | + SDHCI_QUIRK_NO_HISPD_BIT | + SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC, + .ops = &tegra_sdhci_ops, + .init = tegra_sdhci_pltfm_dt_init, + .exit = tegra_sdhci_pltfm_dt_exit, +}; |