sdhci : recompute timeout_clk when needed (fac6a52f) · Commits · 戴 / test

when SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK is set, timeout_clk is sdclk. We need to update it when we change sdclk in sdhci_set_clock. This allow to have a more precisse timeout and max_busy_timeout. This can help for command that need a big busy wait (erase, ...). Signed-off-by:

Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by:

Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci.c

+7 −1

Original line number	Diff line number	Diff line
		@@ -1192,8 +1192,14 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
		}

		clock_set:
		if (real_div)
		if (real_div) {
		host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div;
		if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK) {
		host->timeout_clk = host->mmc->actual_clock / 1000;
		host->mmc->max_busy_timeout =
		(1 << 27) / host->timeout_clk;
		}
		}

		clk \|= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT;
		clk \|= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN)

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