From fac6a52fe9b14851d56b3c19c3d5a95790c46fac Mon Sep 17 00:00:00 2001 From: Matthieu CASTET Date: Thu, 14 Aug 2014 16:03:18 +0200 Subject: [PATCH] sdhci : recompute timeout_clk when needed 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 Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index bcad108..4cc2ff9 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -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) -- 2.7.4