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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>
This commit is contained in:
Scott Branden 2015-03-10 11:35:10 -07:00 committed by Ulf Hansson
parent 03a6d29104
commit 04e079cf6b
1 changed files with 3 additions and 17 deletions
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20
drivers/mmc/host/sdhci.c
View File

@ -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, static int sdhci_pre_dma_transfer(struct sdhci_host *host,
struct mmc_data *data, struct mmc_data *data,
struct sdhci_host_next *next); struct sdhci_host_next *next);
static int sdhci_do_get_cd(struct sdhci_host *host);
#ifdef CONFIG_PM #ifdef CONFIG_PM
static int sdhci_runtime_pm_get(struct sdhci_host *host); 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); 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); 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; 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) { if (!present || host->flags & SDHCI_DEVICE_DEAD) {
host->mrq->cmd->error = -ENOMEDIUM; host->mrq->cmd->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet); tasklet_schedule(&host->finish_tasklet);