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clk: fractional-divider: Use bit operations consistently

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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>
This commit is contained in:
Andy Shevchenko 2024-03-03 14:07:32 +02:00 committed by Stephen Boyd
parent 6e3f07f9df
commit c1ab111e62
1 changed files with 4 additions and 4 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

8
drivers/clk/clk-fractional-divider.c
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@ -140,8 +140,8 @@ void clk_fractional_divider_general_approximation(struct clk_hw *hw,
} }
if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) { if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {
max_m = 1 << fd->mwidth; max_m = BIT(fd->mwidth);
max_n = 1 << fd->nwidth; max_n = BIT(fd->nwidth);
} else { } else {
max_m = GENMASK(fd->mwidth - 1, 0); max_m = GENMASK(fd->mwidth - 1, 0);
max_n = GENMASK(fd->nwidth - 1, 0); max_n = GENMASK(fd->nwidth - 1, 0);
@ -182,8 +182,8 @@ static int clk_fd_set_rate(struct clk_hw *hw, unsigned long rate,
u32 val; u32 val;
if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) { if (fd->flags & CLK_FRAC_DIVIDER_ZERO_BASED) {
max_m = 1 << fd->mwidth; max_m = BIT(fd->mwidth);
max_n = 1 << fd->nwidth; max_n = BIT(fd->nwidth);
} else { } else {
max_m = GENMASK(fd->mwidth - 1, 0); max_m = GENMASK(fd->mwidth - 1, 0);
max_n = GENMASK(fd->nwidth - 1, 0); max_n = GENMASK(fd->nwidth - 1, 0);