diff options
Diffstat (limited to 'drivers/mmc/host/sdhci-pxav3.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-pxav3.c | 35 |
1 files changed, 31 insertions, 4 deletions
diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c index 07fe3834fe0b..e918a2bb3af1 100644 --- a/drivers/mmc/host/sdhci-pxav3.c +++ b/drivers/mmc/host/sdhci-pxav3.c @@ -24,12 +24,14 @@ #include <linux/gpio.h> #include <linux/mmc/card.h> #include <linux/mmc/host.h> +#include <linux/mmc/slot-gpio.h> #include <linux/platform_data/pxa_sdhci.h> #include <linux/slab.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/of_gpio.h> #include "sdhci.h" #include "sdhci-pltfm.h" @@ -182,6 +184,7 @@ static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev) struct device_node *np = dev->of_node; u32 bus_width; u32 clk_delay_cycles; + enum of_gpio_flags gpio_flags; pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) @@ -198,6 +201,10 @@ static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev) if (clk_delay_cycles > 0) pdata->clk_delay_cycles = clk_delay_cycles; + pdata->ext_cd_gpio = of_get_named_gpio_flags(np, "cd-gpios", 0, &gpio_flags); + if (gpio_flags != OF_GPIO_ACTIVE_LOW) + pdata->host_caps2 |= MMC_CAP2_CD_ACTIVE_HIGH; + return pdata; } #else @@ -231,14 +238,14 @@ static int __devinit sdhci_pxav3_probe(struct platform_device *pdev) pltfm_host = sdhci_priv(host); pltfm_host->priv = pxa; - clk = clk_get(dev, "PXA-SDHCLK"); + clk = clk_get(dev, NULL); if (IS_ERR(clk)) { dev_err(dev, "failed to get io clock\n"); ret = PTR_ERR(clk); goto err_clk_get; } pltfm_host->clk = clk; - clk_enable(clk); + clk_prepare_enable(clk); host->quirks = SDHCI_QUIRK_BROKEN_TIMEOUT_VAL | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC @@ -266,12 +273,25 @@ static int __devinit sdhci_pxav3_probe(struct platform_device *pdev) host->quirks |= pdata->quirks; if (pdata->host_caps) host->mmc->caps |= pdata->host_caps; + if (pdata->host_caps2) + host->mmc->caps2 |= pdata->host_caps2; if (pdata->pm_caps) host->mmc->pm_caps |= pdata->pm_caps; + + if (gpio_is_valid(pdata->ext_cd_gpio)) { + ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio); + if (ret) { + dev_err(mmc_dev(host->mmc), + "failed to allocate card detect gpio\n"); + goto err_cd_req; + } + } } host->ops = &pxav3_sdhci_ops; + sdhci_get_of_property(pdev); + ret = sdhci_add_host(host); if (ret) { dev_err(&pdev->dev, "failed to add host\n"); @@ -283,8 +303,10 @@ static int __devinit sdhci_pxav3_probe(struct platform_device *pdev) return 0; err_add_host: - clk_disable(clk); + clk_disable_unprepare(clk); clk_put(clk); + mmc_gpio_free_cd(host->mmc); +err_cd_req: err_clk_get: sdhci_pltfm_free(pdev); kfree(pxa); @@ -296,11 +318,16 @@ static int __devexit sdhci_pxav3_remove(struct platform_device *pdev) struct sdhci_host *host = platform_get_drvdata(pdev); struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); struct sdhci_pxa *pxa = pltfm_host->priv; + struct sdhci_pxa_platdata *pdata = pdev->dev.platform_data; sdhci_remove_host(host, 1); - clk_disable(pltfm_host->clk); + clk_disable_unprepare(pltfm_host->clk); clk_put(pltfm_host->clk); + + if (gpio_is_valid(pdata->ext_cd_gpio)) + mmc_gpio_free_cd(host->mmc); + sdhci_pltfm_free(pdev); kfree(pxa); |