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clk: fractional-divider: Use bit operations consistently
Use BIT() where makes sense. This alings usage of bit operations in the same pieces of code. Moreover, strictly speaking by the letter of the C standard, left shift of 1 by 31 bits is UB (undefined behaviour), switching to BIT() addresses that as well. Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20240303120732.240355-1-andy.shevchenko@gmail.com Reviewed-by: Chen-Yu Tsai <wenst@chromium.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
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@ -140,8 +140,8 @@ void clk_fractional_divider_general_approximation(struct clk_hw *hw,
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}
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if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {
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max_m = 1 << fd->mwidth;
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max_n = 1 << fd->nwidth;
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max_m = BIT(fd->mwidth);
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max_n = BIT(fd->nwidth);
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} else {
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max_m = GENMASK(fd->mwidth - 1, 0);
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max_n = GENMASK(fd->nwidth - 1, 0);
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@ -182,8 +182,8 @@ static int clk_fd_set_rate(struct clk_hw *hw, unsigned long rate,
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u32 val;
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if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {
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max_m = 1 << fd->mwidth;
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max_n = 1 << fd->nwidth;
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max_m = BIT(fd->mwidth);
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max_n = BIT(fd->nwidth);
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} else {
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max_m = GENMASK(fd->mwidth - 1, 0);
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max_n = GENMASK(fd->nwidth - 1, 0);
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