[PATCH] Subject: MMC: Enable DMA on Ricoh sdhci reader by default

Maxim Levitsky
2010-02-26T21:25:19Z

From: Vasily Khoruzhick <anarsoul@gmail.com>

This card reader doesn't advertise, however DMA works well.
Probably windows SDHCI driver assumes that all readers support DMA
and thus we see that bug.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
---
drivers/mmc/host/sdhci-pci.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 5c3a176..12f5b09 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -80,9 +80,6 @@ struct sdhci_pci_chip {

static int ricoh_probe(struct sdhci_pci_chip *chip)
{
- if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_IBM)
- chip->quirks |= SDHCI_QUIRK_CLOCK_BEFORE_RESET;
-
if (chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SAMSUNG ||
chip->pdev->subsystem_vendor == PCI_VENDOR_ID_SONY)
chip->quirks |= SDHCI_QUIRK_NO_CARD_NO_RESET;
@@ -92,7 +89,9 @@ static int ricoh_probe(struct sdhci_pci_chip *chip)

static const struct sdhci_pci_fixes sdhci_ricoh = {
.probe = ricoh_probe,
- .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR,
+ .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
+ SDHCI_QUIRK_FORCE_DMA |
+ SDHCI_QUIRK_CLOCK_BEFORE_RESET,
};

static const struct sdhci_pci_fixes sdhci_ene_712 = {
--
1.6.3.3