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i2c: rk3x: Use HZ_PER_GHZ constant instead of plain number

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

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260112134900.4142954-6-andriy.shevchenko@linux.intel.com
This commit is contained in:
Andy Shevchenko 2026-01-12 14:46:13 +01:00 • committed by Andi Shyti
parent f83aa45146
commit 65db3bf4f6
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1 changed files with 6 additions and 6 deletions
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12
drivers/i2c/busses/i2c-rk3x.c
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@ -19,6 +19,7 @@
#include <linux/of_irq.h>
#include <linux/spinlock.h>
#include <linux/clk.h>
#include <linux/units.h>
#include <linux/wait.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
@ -896,13 +897,12 @@ static void rk3x_i2c_adapt_div(struct rk3x_i2c *i2c, unsigned long clk_rate)
clk_disable(i2c->pclk);
t_low_ns = div_u64(((u64)calc.div_low + 1) * 8 * 1000000000, clk_rate);
t_high_ns = div_u64(((u64)calc.div_high + 1) * 8 * 1000000000,
clk_rate);
t_low_ns = div_u64(8ULL * HZ_PER_GHZ * (calc.div_low + 1), clk_rate);
t_high_ns = div_u64(8ULL * HZ_PER_GHZ * (calc.div_high + 1), clk_rate);
dev_dbg(i2c->dev,
"CLK %lukhz, Req %uns, Act low %lluns high %lluns\n",
clk_rate / 1000,
1000000000 / t->bus_freq_hz,
"CLK %lukHz, Req %luns, Act low %lluns high %lluns\n",
clk_rate / HZ_PER_KHZ,
HZ_PER_GHZ / t->bus_freq_hz,
t_low_ns, t_high_ns);
}