github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-11-06 21:58:01 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

clk: si521xx: simplify si521xx_diff_idx_to_reg_bit()

Browse Source 
Switch the function to using fns(), and get rid of the double for-loop.

Signed-off-by: Yury Norov <ynorov@nvidia.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
This commit is contained in:
Yury Norov 2026-09-25 15:38:58 -04:00 committed by Brian Masney
parent af384d6e05
commit f619355a6b
1 changed files with 18 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/clk/clk-si521xx.c
View File

@ -13,6 +13,7 @@
*/
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/bitrev.h>
#include <linux/clk-provider.h>
#include <linux/i2c.h>
@ -255,18 +256,24 @@ static void si521xx_diff_idx_to_reg_bit(const u16 chip_info, const int idx,
struct si_clk *clk)
{
unsigned long mask;
int oe, b, ctr = 0;
unsigned int bit;
int oe = 1;
for (oe = 1; oe <= 2; oe++) {
mask = bitrev8(SI521XX_OE_MAP_GET_OE(oe, chip_info));
for_each_set_bit(b, &mask, 8) {
if (ctr++ != idx)
continue;
clk->reg = SI521XX_REG_OE(oe);
clk->bit = 7 - b;
return;
}
}
mask = bitrev8(SI521XX_OE_MAP_GET_OE(1, chip_info));
bit = fns(mask, idx);
if (bit < 8)
goto out;
oe = 2;
bit = idx - hweight8(mask);
mask = bitrev8(SI521XX_OE_MAP_GET_OE(2, chip_info));
bit = fns(mask, bit);
if (bit >= 8)
return;
out:
clk->reg = SI521XX_REG_OE(oe);
clk->bit = 7 - bit;
}
static struct clk_hw *