linux-kernel - [PATCH v1 6/7] i2c: st: Use HZ_PER_GHZ constant instead of plain number

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Message-ID: <20260112134900.4142954-7-andriy.shevchenko@linux.intel.com>
Date: Mon, 12 Jan 2026 14:46:14 +0100
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Andi Shyti <andi@...da.it>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Qianfeng Rong <rongqianfeng@...o.com>,
	linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org
Cc: Khalil Blaiech <kblaiech@...dia.com>,
	Asmaa Mnebhi <asmaa@...dia.com>,
	Andi Shyti <andi.shyti@...nel.org>,
	Qii Wang <qii.wang@...iatek.com>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Linus Walleij <linusw@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Patrice Chotard <patrice.chotard@...s.st.com>,
	Ard Biesheuvel <ardb@...nel.org>
Subject: [PATCH v1 6/7] i2c: st: Use HZ_PER_GHZ constant instead of plain number

Use defined constant to avoid the possible mistakes and to provide
an additional information on the units.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
 drivers/i2c/busses/i2c-st.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c
index 97d70e667227..751ea421caaf 100644
--- a/drivers/i2c/busses/i2c-st.c
+++ b/drivers/i2c/busses/i2c-st.c
@@ -20,6 +20,7 @@
 #include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
+#include <linux/units.h>
 
 /* SSC registers */
 #define SSC_BRG				0x000
@@ -285,7 +286,7 @@ static void st_i2c_hw_config(struct st_i2c_dev *i2c_dev)
 	writel_relaxed(val, i2c_dev->base + SSC_CTL);
 
 	rate = clk_get_rate(i2c_dev->clk);
-	ns_per_clk = 1000000000 / rate;
+	ns_per_clk = HZ_PER_GHZ / rate;
 
 	/* Baudrate */
 	val = rate / (2 * t->rate);
-- 
2.50.1