[PATCH v2 2/6] mmc: sdhci: Deduplicate sdhci_get_cd_nogpio()

Andy Shevchenko
2021-10-13T20:17:30Z

The analogue of the sdhci_get_cd_nogpio() is used in the sdhci-pci-core
and sdhci-acpi modules. Deduplicate it by moving to sdhci and exporting.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/mmc/host/sdhci-acpi.c | 14 +-------------
drivers/mmc/host/sdhci-pci-core.c | 18 ------------------
drivers/mmc/host/sdhci.c | 19 +++++++++++++++++++
drivers/mmc/host/sdhci.h | 1 +
4 files changed, 21 insertions(+), 31 deletions(-)

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 8fe65f172a61..f1ef0d28b0dd 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -362,23 +362,11 @@ static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev)
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 ret;
+ return sdhci_get_cd_nogpio(mmc);
}

static int intel_probe_slot(struct platform_device *pdev, struct acpi_device *adev)
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index d0f2edfe296c..19e13dfae593 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -616,24 +616,6 @@ static int intel_select_drive_strength(struct mmc_card *card,
return intel_host->drv_strength;
}

-static int sdhci_get_cd_nogpio(struct mmc_host *mmc)
-{
- struct sdhci_host *host = mmc_priv(mmc);
- unsigned long flags;
- int ret = 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 ret;
-}
-
static int bxt_get_cd(struct mmc_host *mmc)
{
int gpio_cd = mmc_gpio_get_cd(mmc);
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 357b365bf0ec..1f4b052f6f27 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2419,6 +2419,25 @@ static int sdhci_get_cd(struct mmc_host *mmc)
return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);
}

+int sdhci_get_cd_nogpio(struct mmc_host *mmc)
+{
+ struct sdhci_host *host = mmc_priv(mmc);
+ unsigned long flags;
+ int ret = 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 ret;
+}
+EXPORT_SYMBOL_GPL(sdhci_get_cd_nogpio);
+
static int sdhci_check_ro(struct sdhci_host *host)
{
unsigned long flags;
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index e8d04e42a5af..c593af479832 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -775,6 +775,7 @@ void sdhci_set_power_and_bus_voltage(struct sdhci_host *host,
unsigned short vdd);
void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode,
unsigned short vdd);
+int sdhci_get_cd_nogpio(struct mmc_host *mmc);
void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq);
int sdhci_request_atomic(struct mmc_host *mmc, struct mmc_request *mrq);
void sdhci_set_bus_width(struct sdhci_host *host, int width);
--
2.33.0