[PATCH v1 0/7] i2c: busses: Introduce and use HZ_PER_GHZ

From: Andy Shevchenko

Date: Mon Jan 12 2026 - 08:49:12 EST


A few drivers for I²C host controllers use HZ_PER_GHZ in numeric form.
This is less readable and prone to subtle mistakes. Instead, introduce
a well defined constant and use it in the drivers. No functional change
implied except one case where 64-bit division replaced with 32-bit one.

Andy Shevchenko (7):
units: Add HZ_PER_GHZ
i2c: mlxbf: Use HZ_PER_GHZ constant instead of custom one
i2c: mt65xx: Use HZ_PER_GHZ constant instead of plain number
i2c: nomadik: Use HZ_PER_GHZ constant instead of plain number
i2c: rk3x: Use HZ_PER_GHZ constant instead of plain number
i2c: st: Use HZ_PER_GHZ constant instead of plain number
i2c: synquacer: Use HZ_PER_GHZ constant instead of plain number

drivers/i2c/busses/i2c-mlxbf.c | 5 ++---
drivers/i2c/busses/i2c-mt65xx.c | 11 ++++++-----
drivers/i2c/busses/i2c-nomadik.c | 7 ++++---
drivers/i2c/busses/i2c-rk3x.c | 12 ++++++------
drivers/i2c/busses/i2c-st.c | 3 ++-
drivers/i2c/busses/i2c-synquacer.c | 3 ++-
include/linux/units.h | 3 +++
7 files changed, 25 insertions(+), 19 deletions(-)

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2.50.1