Hi Binbin,
On Thu, Feb 20, 2025 at 08:56:12PM +0800, Binbin Zhou wrote:
According to the chip manual, the I2C register access type of Loongson-2K2000/LS7A is "B", so we can only access registers in byte form (readb()/writeb()).
Although Loongson-2K0500/Loongson-2K1000 do not have similar constraints, register accesses in byte form also behave correctly.
Also, in hardware, the frequency division registers are defined as two separate registers (high 8-bit and low 8-bit), so we just access them directly as bytes.
Cc: stable@vger.kernel.org Fixes: 015e61f0bffd ("i2c: ls2x: Add driver for Loongson-2K/LS7A I2C controller") Co-developed-by: Hongliang Wang wanghongliang@loongson.cn Signed-off-by: Hongliang Wang wanghongliang@loongson.cn Signed-off-by: Binbin Zhou zhoubinbin@loongson.cn Reviewed-by: Andy Shevchenko andy@kernel.org
merged to i2c/i2c-host-fixes.
Thanks Andy for the review!
Andi