On 08.04.2021 21:50, Krzysztof Kozlowski wrote:

The Special Function Registers on all Exynos SoC, including ARM64, are
32-bit wide, so entire driver uses matching functions like readl() or
writel().  On 64-bit ARM using unsigned long for register masks:
1. makes little sense as immediately after bitwise operation it will be
   cast to 32-bit value when calling writel(),
2. is actually error-prone because it might promote other operands to
   64-bit.

Addresses-Coverity: Unintentional integer overflow
Signed-off-by: Krzysztof Kozlowski <redacted>

Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>

---

Not tested on ARM64.

I have tested it on exynos5433/tm2e and didn't notice any issues
as we could expect. 
The patch looks good to me, however I would personally use u32
rather than "unsigned int", like in other places for the register
value variables.

--
Regards, 
Sylwester

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