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pinctrl: renesas: Simplify multiplication/shift logic

Message ID 31eaa3226c61ecf653e2b031307eea42a9a3d54e.1645460548.git.geert+renesas@glider.be
State Accepted
Commit 29af63443003afd41ce3b0e039ae97f0a09a87b8
Headers show
Series pinctrl: renesas: Simplify multiplication/shift logic | expand

Commit Message

Geert Uytterhoeven Feb. 21, 2022, 4:24 p.m. UTC 
"a * (1 << b)" == "a << b".

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
To be queued in renesas-pinctrl-for-v5.18.

 drivers/pinctrl/renesas/sh_pfc.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/pinctrl/renesas/sh_pfc.h b/drivers/pinctrl/renesas/sh_pfc.h
index 6b5836ea47de224c..da05eec97acc323c 100644
--- a/drivers/pinctrl/renesas/sh_pfc.h
+++ b/drivers/pinctrl/renesas/sh_pfc.h
@@ -132,9 +132,8 @@  struct pinmux_cfg_reg {
 	.reg = r, .reg_width = r_width,					\
 	.field_width = f_width + BUILD_BUG_ON_ZERO(r_width % f_width) +	\
 	BUILD_BUG_ON_ZERO(sizeof((const u16 []) { ids }) / sizeof(u16) != \
-			  (r_width / f_width) * (1 << f_width)),	\
-	.enum_ids = (const u16 [(r_width / f_width) * (1 << f_width)])	\
-		{ ids }
+			  (r_width / f_width) << f_width),		\
+	.enum_ids = (const u16 [(r_width / f_width) << f_width]) { ids }
 
 /*
  * Describe a config register consisting of several fields of different widths