mmc: sdhci: fix card presence logic in sdhci_request function

The sdhci_request function should consider a non-removable device
always present.
Call the correct logic already available in sdhci_do_get_cd function.

This fixes some logic paths where MMC requests are being made to
non-removable devices that do not have the card detect pin connected
on the hardware as it is non-removable.

Signed-off-by: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 3d7ebbb..c80287a 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -57,6 +57,7 @@ static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
 static int sdhci_pre_dma_transfer(struct sdhci_host *host,
                                        struct mmc_data *data,
                                        struct sdhci_host_next *next);
+static int sdhci_do_get_cd(struct sdhci_host *host);
 
 #ifdef CONFIG_PM
 static int sdhci_runtime_pm_get(struct sdhci_host *host);
@@ -1358,7 +1359,8 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 
        sdhci_runtime_pm_get(host);
 
-       present = mmc_gpio_get_cd(host->mmc);
+       /* Firstly check card presence */
+       present = sdhci_do_get_cd(host);
 
        spin_lock_irqsave(&host->lock, flags);
 
@@ -1381,22 +1383,6 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq)
 
        host->mrq = mrq;
 
-       /*
-        * Firstly check card presence from cd-gpio.  The return could
-        * be one of the following possibilities:
-        *     negative: cd-gpio is not available
-        *     zero: cd-gpio is used, and card is removed
-        *     one: cd-gpio is used, and card is present
-        */
-       if (present < 0) {
-               /* If polling, assume that the card is always present. */
-               if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)
-                       present = 1;
-               else
-                       present = sdhci_readl(host, SDHCI_PRESENT_STATE) &
-                                       SDHCI_CARD_PRESENT;
-       }
-
        if (!present || host->flags & SDHCI_DEVICE_DEAD) {
                host->mrq->cmd->error = -ENOMEDIUM;
                tasklet_schedule(&host->finish_tasklet);