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-rw-r--r--drivers/mmc/host/sdhci.c17
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 59d6b719b0aa..1aed27869b3c 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -989,6 +989,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
mod_timer(&host->timer, jiffies + 10 * HZ);
host->cmd = cmd;
+ host->busy_handle = 0;
sdhci_prepare_data(host, cmd);
@@ -2150,8 +2151,12 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
if (host->cmd->data)
DBG("Cannot wait for busy signal when also "
"doing a data transfer");
- else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ))
+ else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ)
+ && !host->busy_handle) {
+ /* Mark that command complete before busy is ended */
+ host->busy_handle = 1;
return;
+ }
/* The controller does not support the end-of-busy IRQ,
* fall through and take the SDHCI_INT_RESPONSE */
@@ -2217,7 +2222,15 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
return;
}
if (intmask & SDHCI_INT_DATA_END) {
- sdhci_finish_command(host);
+ /*
+ * Some cards handle busy-end interrupt
+ * before the command completed, so make
+ * sure we do things in the proper order.
+ */
+ if (host->busy_handle)
+ sdhci_finish_command(host);
+ else
+ host->busy_handle = 1;
return;
}
}