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Date: Thu, 9 Jul 2020 14:57:06 -0500 From: Eddie James <eajames@...ux.ibm.com> To: linux-clk@...r.kernel.org Cc: linux-kernel@...r.kernel.org, linux-aspeed@...ts.ozlabs.org, linux-mmc@...r.kernel.org, andrew@...id.au, joel@....id.au, ulf.hansson@...aro.org, adrian.hunter@...el.com, sboyd@...nel.org, mturquette@...libre.com, eajames@...ux.ibm.com Subject: [PATCH 2/2] mmc: sdhci-of-aspeed: Fix clock divider calculation When calculating the clock divider, start dividing at 2 instead of 1. The divider is divided by two at the end of the calculation, so starting at 1 may result in a divider of 0, which shouldn't happen. Signed-off-by: Eddie James <eajames@...ux.ibm.com> --- drivers/mmc/host/sdhci-of-aspeed.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c index 56912e30c47e..a1bcc0f4ba9e 100644 --- a/drivers/mmc/host/sdhci-of-aspeed.c +++ b/drivers/mmc/host/sdhci-of-aspeed.c @@ -68,7 +68,7 @@ static void aspeed_sdhci_set_clock(struct sdhci_host *host, unsigned int clock) if (WARN_ON(clock > host->max_clk)) clock = host->max_clk; - for (div = 1; div < 256; div *= 2) { + for (div = 2; div < 256; div *= 2) { if ((parent / div) <= clock) break; } -- 2.24.0
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