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authorAdrian Hunter <adrian.hunter@intel.com>2014-09-24 10:27:27 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2014-10-03 14:18:17 +0200
commit615413979487a1e25a3b76abbaa316280ca19d26 (patch)
treeac3e964bfd380f9bfe01b7c353fa64e9d0a6925f /drivers/mmc
parent89168b48991537bec2573b3b6a8841df74465b12 (diff)
mmc: sdhci: Add quirk for always getting TC with stop cmd
Add a quirk for a host controller that always sets a Transfer Complete interrupt status for the stop command even when a busy response is not indicated. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/sdhci.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index cbd433712756..a932f70bcc51 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2225,7 +2225,7 @@ static void sdhci_tuning_timer(unsigned long data)
* *
\*****************************************************************************/
-static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
+static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *mask)
{
BUG_ON(intmask == 0);
@@ -2272,6 +2272,9 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask)
/* The controller does not support the end-of-busy IRQ,
* fall through and take the SDHCI_INT_RESPONSE */
+ } else if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) &&
+ host->cmd->opcode == MMC_STOP_TRANSMISSION && !host->data) {
+ *mask &= ~SDHCI_INT_DATA_END;
}
if (intmask & SDHCI_INT_RESPONSE)
@@ -2481,7 +2484,8 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id)
}
if (intmask & SDHCI_INT_CMD_MASK)
- sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK);
+ sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK,
+ &intmask);
if (intmask & SDHCI_INT_DATA_MASK)
sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);