[PATCH 3/7] clk: renesas: rcar-gen3: Remove superfluous masking in cpg_z_clk_set_rate()
From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: 2021-03-26 12:03:31
Also in:
linux-renesas-soc
Subsystem:
common clk framework, renesas clock drivers, the rest · Maintainers:
Michael Turquette, Stephen Boyd, Geert Uytterhoeven, Linus Torvalds
Due to the clamping of mult, "(32 - mult) << __ffs(zclk->mask)" can never exceed the mask. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> --- drivers/clk/renesas/rcar-gen3-cpg.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/clk/renesas/rcar-gen3-cpg.c b/drivers/clk/renesas/rcar-gen3-cpg.c
index e5edf1b908411643..cf0d049aa8c78115 100644
--- a/drivers/clk/renesas/rcar-gen3-cpg.c
+++ b/drivers/clk/renesas/rcar-gen3-cpg.c@@ -104,8 +104,7 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate, if (readl(zclk->kick_reg) & CPG_FRQCRB_KICK) return -EBUSY; - cpg_reg_modify(zclk->reg, zclk->mask, - ((32 - mult) << __ffs(zclk->mask)) & zclk->mask); + cpg_reg_modify(zclk->reg, zclk->mask, (32 - mult) << __ffs(zclk->mask)); /* * Set KICK bit in FRQCRB to update hardware setting and wait for
--
2.25.1