mmc: pci_mmc: Only generate ACPI code for the SD card

At present if an eMMC part is in the system, the ACPI table generated
will include information about that, as well as the SD card. We only need
to include the SD card, since it has a card-detect GPIO. Use a different
compatible string for each option, and add code only for the SD card.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>

diff --git a/drivers/mmc/pci_mmc.c b/drivers/mmc/pci_mmc.c
index b26eb03..9316ac1 100644 (file)
--- a/drivers/mmc/pci_mmc.c
+++ b/drivers/mmc/pci_mmc.c
@@ -17,6 +17,12 @@
 #include <asm-generic/gpio.h>
 #include <dm/acpi.h>
 
+/* Type of MMC device */
+enum {
+       TYPE_SD,
+       TYPE_EMMC,
+};
+
 struct pci_mmc_plat {
        struct mmc_config cfg;
        struct mmc mmc;
@@ -79,6 +85,8 @@ static int pci_mmc_acpi_fill_ssdt(const struct udevice *dev,
 
        if (!dev_has_ofnode(dev))
                return 0;
+       if (dev_get_driver_data(dev) == TYPE_EMMC)
+               return 0;
 
        ret = gpio_get_acpi(&priv->cd_gpio, &gpio);
        if (ret)
@@ -122,7 +130,8 @@ struct acpi_ops pci_mmc_acpi_ops = {
 };
 
 static const struct udevice_id pci_mmc_match[] = {
-       { .compatible = "intel,apl-sd" },
+       { .compatible = "intel,apl-sd", .data = TYPE_SD },
+       { .compatible = "intel,apl-emmc", .data = TYPE_EMMC },
        { }
 };