diff mbox series

[5.10.y-cip,12/24] clk: renesas: rzg2l: Simplify multiplication/shift logic

Message ID 20220802110850.1496057-13-biju.das.jz@bp.renesas.com (mailing list archive)
State Accepted
Delegated to: Pavel Machek
Headers show
Series Add RZ/{G2LC, V2L} support | expand

Commit Message

Biju Das Aug. 2, 2022, 11:08 a.m. UTC 
From: Geert Uytterhoeven <geert+renesas@glider.be>

commit 29db30c45f07c929c86c40a5b85f18b69c89c638 upstream.

"a * (1 << b)" == "a << b".

No change in generated code.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/71e1cf2e30fb2d7966fc8ec6bab23eb7e24aa1c4.1645460687.git.geert+renesas@glider.be
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
 drivers/clk/renesas/rzg2l-cpg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c
index b3a1533970e5..f626d2704477 100644
--- a/drivers/clk/renesas/rzg2l-cpg.c
+++ b/drivers/clk/renesas/rzg2l-cpg.c
@@ -289,7 +289,7 @@  static unsigned long rzg2l_cpg_pll_clk_recalc_rate(struct clk_hw *hw,
 	val1 = readl(priv->base + GET_REG_SAMPLL_CLK1(pll_clk->conf));
 	val2 = readl(priv->base + GET_REG_SAMPLL_CLK2(pll_clk->conf));
 	mult = MDIV(val1) + KDIV(val1) / 65536;
-	div = PDIV(val1) * (1 << SDIV(val2));
+	div = PDIV(val1) << SDIV(val2);
 
 	return DIV_ROUND_CLOSEST_ULL((u64)parent_rate * mult, div);
 }