diff options
| author | Pierre Ossman <drzeus@drzeus.cx> | 2008-04-16 19:13:13 +0200 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2008-07-15 14:14:40 +0200 |
| commit | 1e72859e3ae16346d4007024b20d2d4ef387dcc3 (patch) | |
| tree | 5fc8319ce14b0770546bbbf9a72c90abaf019317 /drivers/mmc/host/sdhci.h | |
| parent | 4489428ab5a49a6f443d9aa17f1d891417787d7b (diff) | |
sdhci: handle hot-remove
Gracefully handle when the device is suddenly removed. Do a test read
and avoid any further access if that read returns -1.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc/host/sdhci.h')
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 7ce12f3e745..7c302515a6a 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -198,6 +198,7 @@ struct sdhci_host { int flags; /* Host attributes */ #define SDHCI_USE_DMA (1<<0) /* Host is DMA capable */ #define SDHCI_REQ_USE_DMA (1<<1) /* Use DMA for this req. */ +#define SDHCI_DEVICE_DEAD (1<<2) /* Device unresponsive */ unsigned int max_clk; /* Max possible freq (MHz) */ unsigned int timeout_clk; /* Timeout freq (KHz) */ @@ -239,7 +240,7 @@ static inline void *sdhci_priv(struct sdhci_host *host) } extern int sdhci_add_host(struct sdhci_host *host); -extern void sdhci_remove_host(struct sdhci_host *host); +extern void sdhci_remove_host(struct sdhci_host *host, int dead); #ifdef CONFIG_PM extern int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state); |