mmc: sdhci-acpi: Fix broken card detect for ACPI HID 80860F14
Some 80860F14 devices do not support card detect and must rely
completely on GPIO. Presently the card detect GPIO is used
only to wake-up from runtime suspend. Change to using
mmc_gpioid_request_cd() which will cause the SDHCI driver to
prefer the GPIO to the host controller's native card detect.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <chris@printf.net>
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 9ce17f6..98c7420 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -31,7 +31,6 @@
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/err.h>
-#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
#include <linux/acpi.h>
#include <linux/pm.h>
@@ -40,13 +39,15 @@
#include <linux/mmc/host.h>
#include <linux/mmc/pm.h>
+#include <linux/mmc/slot-gpio.h>
#include <linux/mmc/sdhci.h>
#include "sdhci.h"
enum {
- SDHCI_ACPI_SD_CD = BIT(0),
- SDHCI_ACPI_RUNTIME_PM = BIT(1),
+ SDHCI_ACPI_SD_CD = BIT(0),
+ SDHCI_ACPI_RUNTIME_PM = BIT(1),
+ SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL = BIT(2),
};
struct sdhci_acpi_chip {
@@ -128,7 +129,8 @@
};
static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
- .flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_RUNTIME_PM,
+ .flags = SDHCI_ACPI_SD_CD | SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL |
+ SDHCI_ACPI_RUNTIME_PM,
.quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,
};
@@ -192,59 +194,6 @@
return slot;
}
-#ifdef CONFIG_PM_RUNTIME
-
-static irqreturn_t sdhci_acpi_sd_cd(int irq, void *dev_id)
-{
- mmc_detect_change(dev_id, msecs_to_jiffies(200));
- return IRQ_HANDLED;
-}
-
-static int sdhci_acpi_add_own_cd(struct device *dev, struct mmc_host *mmc)
-{
- struct gpio_desc *desc;
- unsigned long flags;
- int err, irq;
-
- desc = devm_gpiod_get_index(dev, "sd_cd", 0);
- if (IS_ERR(desc)) {
- err = PTR_ERR(desc);
- goto out;
- }
-
- err = gpiod_direction_input(desc);
- if (err)
- goto out_free;
-
- irq = gpiod_to_irq(desc);
- if (irq < 0) {
- err = irq;
- goto out_free;
- }
-
- flags = IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING;
- err = devm_request_irq(dev, irq, sdhci_acpi_sd_cd, flags, "sd_cd", mmc);
- if (err)
- goto out_free;
-
- return 0;
-
-out_free:
- devm_gpiod_put(dev, desc);
-out:
- dev_warn(dev, "failed to setup card detect wake up\n");
- return err;
-}
-
-#else
-
-static int sdhci_acpi_add_own_cd(struct device *dev, struct mmc_host *mmc)
-{
- return 0;
-}
-
-#endif
-
static int sdhci_acpi_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -332,15 +281,19 @@
host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
+ 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)) {
+ dev_warn(dev, "failed to setup card detect gpio\n");
+ c->use_runtime_pm = false;
+ }
+ }
+
err = sdhci_add_host(host);
if (err)
goto err_free;
- if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
- if (sdhci_acpi_add_own_cd(dev, host->mmc))
- c->use_runtime_pm = false;
- }
-
if (c->use_runtime_pm) {
pm_runtime_set_active(dev);
pm_suspend_ignore_children(dev, 1);