From: Wenchao Chen Date: Wed, 14 Sep 2022 06:37:02 +0000 (+0800) Subject: mmc: sdhci-sprd: Fix the limitation of div X-Git-Tag: v6.6.17~6497^2~14 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d252e9b1073a12fee68fc9a626a83035cd03cf70;p=platform%2Fkernel%2Flinux-rpi.git mmc: sdhci-sprd: Fix the limitation of div Because the bit field size of the divider coefficient register is 1023, it is limited before returning the value. Signed-off-by: Wenchao Chen Link: https://lore.kernel.org/r/20220914063702.20283-1-wenchao.chen666@gmail.com Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sdhci-sprd.c b/drivers/mmc/host/sdhci-sprd.c index f33e934..46c55ab 100644 --- a/drivers/mmc/host/sdhci-sprd.c +++ b/drivers/mmc/host/sdhci-sprd.c @@ -205,14 +205,14 @@ static inline u32 sdhci_sprd_calc_div(u32 base_clk, u32 clk) if ((base_clk / div) > (clk * 2)) div++; - if (div > SDHCI_SPRD_CLK_MAX_DIV) - div = SDHCI_SPRD_CLK_MAX_DIV; - if (div % 2) div = (div + 1) / 2; else div = div / 2; + if (div > SDHCI_SPRD_CLK_MAX_DIV) + div = SDHCI_SPRD_CLK_MAX_DIV; + return div; }