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sdhci: improve no card, no reset quirk 

The quirk was meant to just inhibit some resets, but ended up blocking
all of them. Fortunately, this was just what was needed. Change the
comment to reflect reality.

Also, this issue has just been observed on Samsung laptops, so reduce
the number of chips the quirk affects.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
hifive-unleashed-5.1
Pierre Ossman 2008-04-13 16:03:38 +02:00
parent 9d7c6eee52
commit 0b82684c3c
1 changed files with 10 additions and 2 deletions
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12
drivers/mmc/host/sdhci.c
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@ -41,7 +41,7 @@ static unsigned int debug_quirks = 0;
#define SDHCI_QUIRK_CLOCK_BEFORE_RESET (1<<0)
/* Controller has bad caps bits, but really supports DMA */
#define SDHCI_QUIRK_FORCE_DMA (1<<1)
/* Controller doesn't like some resets when there is no card inserted. */
/* Controller doesn't like to be reset when there is no card inserted. */
#define SDHCI_QUIRK_NO_CARD_NO_RESET (1<<2)
/* Controller doesn't like clearing the power reg before a change */
#define SDHCI_QUIRK_SINGLE_POWER_WRITE (1<<3)
@ -69,12 +69,20 @@ static const struct pci_device_id pci_ids[] __devinitdata = {
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = PCI_DEVICE_ID_RICOH_R5C822,
.subvendor = PCI_ANY_ID,
.subvendor = PCI_VENDOR_ID_SAMSUNG,
.subdevice = PCI_ANY_ID,
.driver_data = SDHCI_QUIRK_FORCE_DMA |
SDHCI_QUIRK_NO_CARD_NO_RESET,
},
{
.vendor = PCI_VENDOR_ID_RICOH,
.device = PCI_DEVICE_ID_RICOH_R5C822,
.subvendor = PCI_ANY_ID,
.subdevice = PCI_ANY_ID,
.driver_data = SDHCI_QUIRK_FORCE_DMA,
},
{
.vendor = PCI_VENDOR_ID_TI,
.device = PCI_DEVICE_ID_TI_XX21_XX11_SD,