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path: root/drivers/mmc/host/sdhci-pci-core.c
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Diffstat (limited to 'drivers/mmc/host/sdhci-pci-core.c')
-rw-r--r--drivers/mmc/host/sdhci-pci-core.c159
1 files changed, 18 insertions, 141 deletions
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index be19785227fe..6f9877546830 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -17,8 +17,6 @@
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include <linux/device.h>
-#include <linux/mmc/host.h>
-#include <linux/mmc/mmc.h>
#include <linux/scatterlist.h>
#include <linux/io.h>
#include <linux/iopoll.h>
@@ -26,11 +24,13 @@
#include <linux/pm_runtime.h>
#include <linux/pm_qos.h>
#include <linux/debugfs.h>
-#include <linux/mmc/slot-gpio.h>
-#include <linux/mmc/sdhci-pci-data.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/slot-gpio.h>
+
#ifdef CONFIG_X86
#include <asm/iosf_mbi.h>
#endif
@@ -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;
@@ -619,23 +552,16 @@ static int intel_select_drive_strength(struct mmc_card *card,
static int bxt_get_cd(struct mmc_host *mmc)
{
int gpio_cd = mmc_gpio_get_cd(mmc);
- struct sdhci_host *host = mmc_priv(mmc);
- unsigned long flags;
- int ret = 0;
if (!gpio_cd)
return 0;
- spin_lock_irqsave(&host->lock, flags);
-
- if (host->flags & SDHCI_DEVICE_DEAD)
- goto out;
-
- ret = !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
-out:
- spin_unlock_irqrestore(&host->lock, flags);
+ return sdhci_get_cd_nogpio(mmc);
+}
- return ret;
+static int mrfld_get_cd(struct mmc_host *mmc)
+{
+ return sdhci_get_cd_nogpio(mmc);
}
#define SDHCI_INTEL_PWR_TIMEOUT_CNT 20
@@ -1341,6 +1267,14 @@ static int intel_mrfld_mmc_probe_slot(struct sdhci_pci_slot *slot)
MMC_CAP_1_8V_DDR;
break;
case INTEL_MRFLD_SD:
+ slot->cd_idx = 0;
+ slot->cd_override_level = true;
+ /*
+ * There are two PCB designs of SD card slot with the opposite
+ * card detection sense. Quirk this out by ignoring GPIO state
+ * completely in the custom ->get_cd() callback.
+ */
+ slot->host->mmc_host_ops.get_cd = mrfld_get_cd;
slot->host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
break;
case INTEL_MRFLD_SDIO:
@@ -1981,21 +1915,6 @@ int sdhci_pci_enable_dma(struct sdhci_host *host)
return 0;
}
-static void sdhci_pci_gpio_hw_reset(struct sdhci_host *host)
-{
- struct sdhci_pci_slot *slot = sdhci_priv(host);
- int rst_n_gpio = slot->rst_n_gpio;
-
- if (!gpio_is_valid(rst_n_gpio))
- return;
- gpio_set_value_cansleep(rst_n_gpio, 0);
- /* For eMMC, minimum is 1us but give it 10us for good measure */
- udelay(10);
- gpio_set_value_cansleep(rst_n_gpio, 1);
- /* For eMMC, minimum is 200us but give it 300us for good measure */
- usleep_range(300, 1000);
-}
-
static void sdhci_pci_hw_reset(struct sdhci_host *host)
{
struct sdhci_pci_slot *slot = sdhci_priv(host);
@@ -2126,26 +2045,8 @@ 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;
- /* Retrieve platform data if there is any */
- if (*sdhci_pci_get_data)
- slot->data = sdhci_pci_get_data(pdev, slotno);
-
- if (slot->data) {
- if (slot->data->setup) {
- ret = slot->data->setup(slot->data);
- if (ret) {
- dev_err(&pdev->dev, "platform setup failed\n");
- goto free;
- }
- }
- slot->rst_n_gpio = slot->data->rst_n_gpio;
- slot->cd_gpio = slot->data->cd_gpio;
- }
-
host->hw_name = "PCI";
host->ops = chip->fixes && chip->fixes->ops ?
chip->fixes->ops :
@@ -2169,17 +2070,6 @@ static struct sdhci_pci_slot *sdhci_pci_probe_slot(
goto cleanup;
}
- if (gpio_is_valid(slot->rst_n_gpio)) {
- if (!devm_gpio_request(&pdev->dev, slot->rst_n_gpio, "eMMC_reset")) {
- gpio_direction_output(slot->rst_n_gpio, 1);
- slot->host->mmc->caps |= MMC_CAP_HW_RESET;
- slot->hw_reset = sdhci_pci_gpio_hw_reset;
- } else {
- dev_warn(&pdev->dev, "failed to request rst_n_gpio\n");
- slot->rst_n_gpio = -EINVAL;
- }
- }
-
host->mmc->pm_caps = MMC_PM_KEEP_POWER;
host->mmc->slotno = slotno;
host->mmc->caps2 |= MMC_CAP2_NO_PRESCAN_POWERUP;
@@ -2214,15 +2104,11 @@ 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;
@@ -2232,10 +2118,6 @@ remove:
chip->fixes->remove_slot(slot, 0);
cleanup:
- if (slot->data && slot->data->cleanup)
- slot->data->cleanup(slot->data);
-
-free:
sdhci_free_host(host);
return ERR_PTR(ret);
@@ -2246,8 +2128,6 @@ 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)
@@ -2258,9 +2138,6 @@ static void sdhci_pci_remove_slot(struct sdhci_pci_slot *slot)
if (slot->chip->fixes && slot->chip->fixes->remove_slot)
slot->chip->fixes->remove_slot(slot, dead);
- if (slot->data && slot->data->cleanup)
- slot->data->cleanup(slot->data);
-
sdhci_free_host(slot->host);
}
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-09 07:25:12 +0300