In general, SDHC hardware timeout cannot be avoided. Accordingly, the maximum timeout is specified to limit the maximum discard size. Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> --- drivers/mmc/host/sdhci.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 91d9892..f7e0434 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -2488,6 +2488,11 @@ int sdhci_add_host(struct sdhci_host *host) } else mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200; + if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK) + mmc->max_discard_to = (1 << 27) / (mmc->f_max / 1000); + else + mmc->max_discard_to = (1 << 27) / host->timeout_clk; + mmc->caps |= MMC_CAP_SDIO_IRQ | MMC_CAP_ERASE | MMC_CAP_CMD23; if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12) -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
