From 578b36b69c31c874f8303c62efb40b8bb9b46ae5 Mon Sep 17 00:00:00 2001 From: "Gao, Yunpeng" Date: Mon, 1 Sep 2014 11:35:40 +0800 Subject: mmc: sdhci-acpi: add probe_slot method for emmc/sd/sdio Similar to sdhci-pci controller, also add probe_slot and remove_slot method in the sdhci-acpi driver. Signed-off-by: Yunpeng Gao Signed-off-by: Chuanxiao Dong Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-acpi.c | 58 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) (limited to 'drivers/mmc') diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c index cc65b3fd0a60..3483c089baa7 100644 --- a/drivers/mmc/host/sdhci-acpi.c +++ b/drivers/mmc/host/sdhci-acpi.c @@ -67,6 +67,8 @@ struct sdhci_acpi_slot { unsigned int caps2; mmc_pm_flag_t pm_caps; unsigned int flags; + int (*probe_slot)(struct platform_device *); + int (*remove_slot)(struct platform_device *); }; struct sdhci_acpi_host { @@ -122,6 +124,51 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_int = { .ops = &sdhci_acpi_ops_int, }; +static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev) +{ + struct sdhci_acpi_host *c = platform_get_drvdata(pdev); + struct sdhci_host *host; + + if (!c || !c->host) + return 0; + + host = c->host; + + /* Platform specific code during emmc proble slot goes here */ + + return 0; +} + +static int sdhci_acpi_sdio_probe_slot(struct platform_device *pdev) +{ + struct sdhci_acpi_host *c = platform_get_drvdata(pdev); + struct sdhci_host *host; + + if (!c || !c->host) + return 0; + + host = c->host; + + /* Platform specific code during emmc proble slot goes here */ + + return 0; +} + +static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev) +{ + struct sdhci_acpi_host *c = platform_get_drvdata(pdev); + struct sdhci_host *host; + + if (!c || !c->host || !c->slot) + return 0; + + host = c->host; + + /* Platform specific code during emmc proble slot goes here */ + + return 0; +} + static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { .chip = &sdhci_acpi_chip_int, .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | @@ -129,6 +176,7 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = { .caps2 = MMC_CAP2_HC_ERASE_SZ, .flags = SDHCI_ACPI_RUNTIME_PM, .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN, + .probe_slot = sdhci_acpi_emmc_probe_slot, }; static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = { @@ -137,12 +185,14 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = { .caps = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD, .flags = SDHCI_ACPI_RUNTIME_PM, .pm_caps = MMC_PM_KEEP_POWER, + .probe_slot = sdhci_acpi_sdio_probe_slot, }; static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = { .flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL | SDHCI_ACPI_RUNTIME_PM, .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON, + .probe_slot = sdhci_acpi_sd_probe_slot, }; struct sdhci_acpi_uid_slot { @@ -277,6 +327,11 @@ static int sdhci_acpi_probe(struct platform_device *pdev) } if (c->slot) { + if (c->slot->probe_slot) { + err = c->slot->probe_slot(pdev); + if (err) + goto err_free; + } if (c->slot->chip) { host->ops = c->slot->chip->ops; host->quirks |= c->slot->chip->quirks; @@ -334,6 +389,9 @@ static int sdhci_acpi_remove(struct platform_device *pdev) pm_runtime_put_noidle(dev); } + if (c->slot && c->slot->remove_slot) + c->slot->remove_slot(pdev); + dead = (sdhci_readl(c->host, SDHCI_INT_STATUS) == ~0); sdhci_remove_host(c->host, dead); sdhci_free_host(c->host); -- cgit v1.2.3