[PATCH v2] clocksource/drivers/fttmr010: fix invalid interrupt register access

Tao Ren taoren at fb.com
Wed Oct 10 16:50:02 AEDT 2018

On 10/7/18, 2:03 PM, "Linus Walleij" <linus.walleij at linaro.org> wrote:

>> TIMER_INTR_MASK register (Base Address of Timer + 0x38) is not designed
>> for masking interrupts on ast2500 chips, and it's not even listed in
>> ast2400 datasheet, so it's not safe to access TIMER_INTR_MASK on aspeed
>> chips.
>> Similarly, TIMER_INTR_STATE register (Base Address of Timer + 0x34) is
>> not interrupt status register on ast2400 and ast2500 chips. Although
>> there is no side effect to reset the register in fttmr010_common_init(),
>> it's just misleading to do so.
>> Besides, "count_down" is renamed to "is_aspeed" in "fttmr010" structure,
>> and more comments are added so the code is more readble.
>> Signed-off-by: Tao Ren <taoren at fb.com>
>> ---
>> Changes in v2:
>>   - "count_down" is renamed to "is_aspeed" in "fttmr010" structure.
>>   - more comments are added to make the code more readable.
>    Reviewed-by: Linus Walleij <linus.walleij at linaro.org>

Thanks for the review, Linus.

- Tao Ren

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