[PATCH v1 5/6] mmc: sdhci-pci: Remove dead code (cd_gpio, cd_irq et al)

[Andy Shevchenko]

The last user of this struct gone couple of releases ago.
Remove the dead code for good and encourage people to use
MMC core functionality for that.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/mmc/host/sdhci-pci-core.c | 76 +------------------------------
 drivers/mmc/host/sdhci-pci.h      |  2 -
 2 files changed, 1 insertion(+), 77 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 8d01285e1b32..a4279437bb5f 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -345,73 +345,6 @@ static int pch_hc_probe_slot(struct sdhci_pci_slot *slot)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-
-static irqreturn_t sdhci_pci_sd_cd(int irq, void *dev_id)
-{
-	struct sdhci_pci_slot *slot = dev_id;
-	struct sdhci_host *host = slot->host;
-
-	mmc_detect_change(host->mmc, msecs_to_jiffies(200));
-	return IRQ_HANDLED;
-}
-
-static void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
-{
-	int err, irq, gpio = slot->cd_gpio;
-
-	slot->cd_gpio = -EINVAL;
-	slot->cd_irq = -EINVAL;
-
-	if (!gpio_is_valid(gpio))
-		return;
-
-	err = devm_gpio_request(&slot->chip->pdev->dev, gpio, "sd_cd");
-	if (err < 0)
-		goto out;
-
-	err = gpio_direction_input(gpio);
-	if (err < 0)
-		goto out_free;
-
-	irq = gpio_to_irq(gpio);
-	if (irq < 0)
-		goto out_free;
-
-	err = request_irq(irq, sdhci_pci_sd_cd, IRQF_TRIGGER_RISING |
-			  IRQF_TRIGGER_FALLING, "sd_cd", slot);
-	if (err)
-		goto out_free;
-
-	slot->cd_gpio = gpio;
-	slot->cd_irq = irq;
-
-	return;
-
-out_free:
-	devm_gpio_free(&slot->chip->pdev->dev, gpio);
-out:
-	dev_warn(&slot->chip->pdev->dev, "failed to setup card detect wake up\n");
-}
-
-static void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
-{
-	if (slot->cd_irq >= 0)
-		free_irq(slot->cd_irq, slot);
-}
-
-#else
-
-static inline void sdhci_pci_add_own_cd(struct sdhci_pci_slot *slot)
-{
-}
-
-static inline void sdhci_pci_remove_own_cd(struct sdhci_pci_slot *slot)
-{
-}
-
-#endif
-
 static int mfd_emmc_probe_slot(struct sdhci_pci_slot *slot)
 {
 	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE;
@@ -2113,7 +2046,6 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
 	slot->chip = chip;
 	slot->host = host;
 	slot->rst_n_gpio = -EINVAL;
-	slot->cd_gpio = -EINVAL;
 	slot->cd_idx = -1;
 
 	host->hw_name = "PCI";
@@ -2184,15 +2116,11 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
 	if (ret)
 		goto remove;
 
-	sdhci_pci_add_own_cd(slot);
-
 	/*
 	 * Check if the chip needs a separate GPIO for card detect to wake up
 	 * from runtime suspend.  If it is not there, don't allow runtime PM.
-	 * Note sdhci_pci_add_own_cd() sets slot->cd_gpio to -EINVAL on failure.
 	 */
-	if (chip->fixes && chip->fixes->own_cd_for_runtime_pm &&
-	    !gpio_is_valid(slot->cd_gpio) && slot->cd_idx < 0)
+	if (chip->fixes && chip->fixes->own_cd_for_runtime_pm && slot->cd_idx < 0)
 		chip->allow_runtime_pm = false;
 
 	return slot;
@@ -2212,8 +2140,6 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
 	int dead;
 	u32 scratch;
 
-	sdhci_pci_remove_own_cd(slot);
-
 	dead = 0;
 	scratch = readl(slot->host->ioaddr + SDHCI_INT_STATUS);
 	if (scratch == (u32)-1)
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index 15b36cd47860..8bb3b9c78589 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -158,8 +158,6 @@ struct sdhci_pci_slot {
 	struct sdhci_host	*host;
 
 	int			rst_n_gpio;
-	int			cd_gpio;
-	int			cd_irq;
 
 	int			cd_idx;
 	bool			cd_override_level;
-- 
2.33.0