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sdhci : handle busy timeout irq 

When we wait for busy after sending a command, if there is
a timeout, we got SDHCI_INT_DATA_TIMEOUT flags.
Before this commit we got the message :
"Got data interrupt 0x00100000 even though no data  operation was in progress."
and we need to wait 10s that sdhci_timeout_timer expires.

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Matthieu CASTET 2014-08-14 16:03:17 +02:00 committed by Ulf Hansson
parent 6f67cc6fd1
commit c5abd5e899
1 changed files with 5 additions and 0 deletions
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5
drivers/mmc/host/sdhci.c
View File

@ -2304,6 +2304,11 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)
* above in sdhci_cmd_irq().
*/
if (host->cmd && (host->cmd->flags & MMC_RSP_BUSY)) {
if (intmask & SDHCI_INT_DATA_TIMEOUT) {
host->cmd->error = -ETIMEDOUT;
tasklet_schedule(&host->finish_tasklet);
return;
}
if (intmask & SDHCI_INT_DATA_END) {
sdhci_finish_command(host);
return;