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Subject[GIT PULL] MMC fixes for 2.6.29-rc7
Linus, please pull from

git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc.git for-linus

to receive a fix for a regression on Marvell's CAFE controller.

drivers/mmc/host/sdhci-pci.c | 1 +
drivers/mmc/host/sdhci.c | 5 ++++-
drivers/mmc/host/sdhci.h | 2 ++
3 files changed, 7 insertions(+), 1 deletions(-)

Andres Salomon (1):
sdhci: Add NO_BUSY_IRQ quirk for Marvell CAFE host chip

Ben Dooks (1):
sdhci: Add quirk for controllers with no end-of-busy IRQ

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 8cff5f5..406da9a 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -107,6 +107,7 @@ static const struct sdhci_pci_fixes sdhci_ene_714 = {

static const struct sdhci_pci_fixes sdhci_cafe = {
.quirks = SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER |
+ SDHCI_QUIRK_NO_BUSY_IRQ |
SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
};

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index f52f305..accb592 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1291,8 +1291,11 @@ 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
+ else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ))
return;
+
+ /* The controller does not support the end-of-busy IRQ,
+ * fall through and take the SDHCI_INT_RESPONSE */
}

if (intmask & SDHCI_INT_RESPONSE)
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index ebb8365..43c37c6 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -208,6 +208,8 @@ struct sdhci_host {
#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1<<12)
/* Controller has an issue with buffer bits for small transfers */
#define SDHCI_QUIRK_BROKEN_SMALL_PIO (1<<13)
+/* Controller does not provide transfer-complete interrupt when not busy */
+#define SDHCI_QUIRK_NO_BUSY_IRQ (1<<14)

int irq; /* Device IRQ */
void __iomem * ioaddr; /* Mapped address */
--
-- Pierre Ossman

Linux kernel, MMC maintainer http://www.kernel.org
rdesktop, core developer http://www.rdesktop.org

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