diff options
| author | Eddie James <eajames@linux.ibm.com> | 2020-07-09 14:57:06 -0500 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-07-13 12:17:34 +0200 |
| commit | ebd4050c6144b38098d8eed34df461e5e3fa82a9 (patch) | |
| tree | 18acf4eab9daa29a97dd407fb2d043a93476a485 /drivers/mmc/host/sdhci-of-aspeed.c | |
| parent | 11ba468877bb23f28956a35e896356252d63c983 (diff) | |
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@linux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Joel Stanley <joel@jms.id.au>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200709195706.12741-3-eajames@linux.ibm.com
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci-of-aspeed.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-aspeed.c | 2 |
1 files changed, 1 insertions, 1 deletions
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; } |