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path: root/drivers/mmc/host/sdhci-acpi.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-acpi.c')
-rw-r--r--drivers/mmc/host/sdhci-acpi.c111
1 files changed, 78 insertions, 33 deletions
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 8c5337002c51..9cccc0e89b04 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 *, const char *, const char *);
+ int (*remove_slot)(struct platform_device *);
};
struct sdhci_acpi_host {
@@ -122,13 +124,67 @@ 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,
+ const char *hid, const char *uid)
+{
+ 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 */
+
+ if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") &&
+ sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 &&
+ sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807)
+ host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
+
+ return 0;
+}
+
+static int sdhci_acpi_sdio_probe_slot(struct platform_device *pdev,
+ const char *hid, const char *uid)
+{
+ 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,
+ const char *hid, const char *uid)
+{
+ 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 |
MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR,
.caps2 = MMC_CAP2_HC_ERASE_SZ,
.flags = SDHCI_ACPI_RUNTIME_PM,
- .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | SDHCI_QUIRK2_STOP_WITH_TC,
+ .probe_slot = sdhci_acpi_emmc_probe_slot,
};
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
@@ -137,12 +193,15 @@ 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,
+ .quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
+ SDHCI_QUIRK2_STOP_WITH_TC,
+ .probe_slot = sdhci_acpi_sd_probe_slot,
};
struct sdhci_acpi_uid_slot {
@@ -156,6 +215,7 @@ static const struct sdhci_acpi_uid_slot sdhci_acpi_uids[] = {
{ "80860F14" , "3" , &sdhci_acpi_slot_int_sd },
{ "80860F16" , NULL, &sdhci_acpi_slot_int_sd },
{ "INT33BB" , "2" , &sdhci_acpi_slot_int_sdio },
+ { "INT33BB" , "3" , &sdhci_acpi_slot_int_sd },
{ "INT33C6" , NULL, &sdhci_acpi_slot_int_sdio },
{ "INT3436" , NULL, &sdhci_acpi_slot_int_sdio },
{ "PNP0D40" },
@@ -173,8 +233,8 @@ static const struct acpi_device_id sdhci_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids);
-static const struct sdhci_acpi_slot *sdhci_acpi_get_slot_by_ids(const char *hid,
- const char *uid)
+static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid,
+ const char *uid)
{
const struct sdhci_acpi_uid_slot *u;
@@ -189,24 +249,6 @@ static const struct sdhci_acpi_slot *sdhci_acpi_get_slot_by_ids(const char *hid,
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;
@@ -217,6 +259,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
struct resource *iomem;
resource_size_t len;
const char *hid;
+ const char *uid;
int err;
if (acpi_bus_get_device(handle, &device))
@@ -226,6 +269,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
return -ENODEV;
hid = acpi_device_hid(device);
+ uid = device->pnp.unique_id;
iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!iomem)
@@ -244,7 +288,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
c = sdhci_priv(host);
c->host = host;
- c->slot = sdhci_acpi_get_slot(handle, hid);
+ c->slot = sdhci_acpi_get_slot(hid, uid);
c->pdev = pdev;
c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM);
@@ -277,6 +321,11 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
}
if (c->slot) {
+ if (c->slot->probe_slot) {
+ err = c->slot->probe_slot(pdev, hid, uid);
+ if (err)
+ goto err_free;
+ }
if (c->slot->chip) {
host->ops = c->slot->chip->ops;
host->quirks |= c->slot->chip->quirks;
@@ -297,7 +346,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL);
- if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0)) {
+ if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) {
dev_warn(dev, "failed to setup card detect gpio\n");
c->use_runtime_pm = false;
}
@@ -334,6 +383,9 @@ 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);
@@ -385,20 +437,13 @@ static int sdhci_acpi_runtime_idle(struct device *dev)
return 0;
}
-#else
-
-#define sdhci_acpi_runtime_suspend NULL
-#define sdhci_acpi_runtime_resume NULL
-#define sdhci_acpi_runtime_idle NULL
-
#endif
static const struct dev_pm_ops sdhci_acpi_pm_ops = {
.suspend = sdhci_acpi_suspend,
.resume = sdhci_acpi_resume,
- .runtime_suspend = sdhci_acpi_runtime_suspend,
- .runtime_resume = sdhci_acpi_runtime_resume,
- .runtime_idle = sdhci_acpi_runtime_idle,
+ SET_RUNTIME_PM_OPS(sdhci_acpi_runtime_suspend,
+ sdhci_acpi_runtime_resume, sdhci_acpi_runtime_idle)
};
static struct platform_driver sdhci_acpi_driver = {
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-28 23:11:26 +0300