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mmc: sdhci: Add quirk to disable HW timeout

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Add quirk to disable HW timeout if the requested timeout is more than the
maximum obtainable timeout.

Also, if the quirk is set and ->get_max_timeout_count() is not implemented,
max_busy_timeout is set to zero.

Based-on-patch-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Adrian Hunter
2018-04-27 17:17:15 +05:30
committed by Ulf Hansson
parent c16bc9a767
commit a999fd9392
2 changed files with 39 additions and 4 deletions
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5
drivers/mmc/host/sdhci.h
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@@ -437,6 +437,11 @@ struct sdhci_host {
#define SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN (1<<15)
/* Controller has CRC in 136 bit Command Response */
#define SDHCI_QUIRK2_RSP_136_HAS_CRC (1<<16)
/*
* Disable HW timeout if the requested timeout is more than the maximum
* obtainable timeout.
*/
#define SDHCI_QUIRK2_DISABLE_HW_TIMEOUT (1<<17)
int irq; /* Device IRQ */
void __iomem *ioaddr; /* Mapped address */