Commit fef20d9b authored Jul 22, 2019 by Ram Prakash Gupta

mmc: sdhci: Use max timeout and skip timeout calculation



Several data-timeout issues were seen, most of which were
due to the card taking a longer time to respond. This patch
increases the timeout of the controller to 0xF i.e. max
possible.

Change-Id: I54c095cdfff55b444c94e7188df8859727cb9675
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Ram Prakash Gupta <rampraka@codeaurora.org>

parent 7c1061b2

drivers/mmc/host/sdhci.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -894,6 +894,12 @@ static u8 sdhci_calc_timeout(struct sdhci_host host, struct mmc_command cmd,
		if (!data && !cmd->busy_timeout)
		return 0xE;

		/* During initialization, don't use max timeout as the clock is slow */
		if ((host->quirks2 & SDHCI_QUIRK2_USE_RESERVED_MAX_TIMEOUT) &&
		(host->clock > 400000)) {
		return 0xF;
		}

		/* timeout in us */
		target_timeout = sdhci_target_timeout(host, cmd, data);