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wdt: dw: Switch to using fls for log2
log_2_n_round_up is only found in arm. fls performs the same job and is generic. Signed-off-by: Sean Anderson <seanga2@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
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@ -9,7 +9,6 @@
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#include <reset.h>
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#include <wdt.h>
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#include <asm/io.h>
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#include <asm/utils.h>
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#include <linux/bitops.h>
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#define DW_WDT_CR 0x00
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@ -35,7 +34,7 @@ static int designware_wdt_settimeout(void __iomem *base, unsigned int clk_khz,
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signed int i;
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/* calculate the timeout range value */
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i = log_2_n_round_up(timeout * clk_khz) - 16;
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i = fls(timeout * clk_khz - 1) - 16;
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i = clamp(i, 0, 15);
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writel(i | (i << 4), base + DW_WDT_TORR);
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