mmc: sdhci-acpi: add more device ids

Add three more ACPI HIDs.  Also, as some devices must be
further distinguished by ACPI UID, slot information is now
associated with HID and UID.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 59 insertions, 9 deletions

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 1da5f29abbcb..706d9cb1a49e 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -87,6 +87,12 @@ static const struct sdhci_ops sdhci_acpi_ops_dflt = {
         .enable_dma = sdhci_acpi_enable_dma,
 };
 
+static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
+        .caps    = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+        .caps2   = MMC_CAP2_HC_ERASE_SZ,
+        .flags   = SDHCI_ACPI_RUNTIME_PM,
+};
+
 static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
         .quirks2 = SDHCI_QUIRK2_HOST_OFF_CARD_ON,
         .caps    = MMC_CAP_NONREMOVABLE | MMC_CAP_POWER_OFF_CARD,
@@ -94,23 +100,67 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
         .pm_caps = MMC_PM_KEEP_POWER,
 };
 
+static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
+};
+
+struct sdhci_acpi_uid_slot {
+        const char *hid;
+        const char *uid;
+        const struct sdhci_acpi_slot *slot;
+};
+
+static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = {
+        { "80860F14" , "1" , &sdhci_acpi_slot_int_emmc },
+        { "80860F14" , "3" , &sdhci_acpi_slot_int_sd   },
+        { "INT33BB"  , "2" , &sdhci_acpi_slot_int_sdio },
+        { "INT33C6"  , NULL, &sdhci_acpi_slot_int_sdio },
+        { "PNP0D40"  },
+        { },
+};
+
 static const struct acpi_device_id sdhci_acpi_ids[] = {
-        { "INT33C6", (kernel_ulong_t)&sdhci_acpi_slot_int_sdio },
-        { "PNP0D40" },
+        { "80860F14" },
+        { "INT33BB"  },
+        { "INT33C6"  },
+        { "PNP0D40"  },
         { },
 };
 MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids);
 
-static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid)
+static const struct sdhci_acpi_slot *sdhci_acpi_get_slot_by_ids(const char *hid,
+                                                                const char *uid)
 {
-        const struct acpi_device_id *id;
-
-        for (id = sdhci_acpi_ids; id->id[0]; id++)
-                if (!strcmp(id->id, hid))
-                        return (const struct sdhci_acpi_slot *)id->driver_data;
+        const struct sdhci_acpi_uid_slot *u;
+
+        for (u = sdhci_acpi_uids; u->hid; u++) {
+                if (strcmp(u->hid, hid))
+                        continue;
+                if (!u->uid)
+                        return u->slot;
+                if (uid && !strcmp(u->uid, uid))
+                        return u->slot;
+        }
         return NULL;
 }
 
+static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(acpi_handle handle,
+                                                         const char *hid)
+{
+        const struct sdhci_acpi_slot *slot;
+        struct acpi_device_info *info;
+        const char *uid = NULL;
+        acpi_status status;
+
+        status = acpi_get_object_info(handle, &info);
+        if (!ACPI_FAILURE(status) && (info->valid & ACPI_VALID_UID))
+                uid = info->unique_id.string;
+
+        slot = sdhci_acpi_get_slot_by_ids(hid, uid);
+
+        kfree(info);
+        return slot;
+}
+
 static int sdhci_acpi_probe(struct platform_device *pdev)
 {
         struct device *dev = &pdev->dev;
@@ -148,7 +198,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 
         c = sdhci_priv(host);
         c->host = host;
-        c->slot = sdhci_acpi_get_slot(hid);
+        c->slot = sdhci_acpi_get_slot(handle, hid);
         c->pdev = pdev;
         c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM);