[PATCH v2 07/12] watchdog: s3c2410: Implement a way to invert mask reg value

[Krzysztof Kozlowski]

On 31/10/2021 13:22, Sam Protsenko wrote:
> On new Exynos chips (like Exynos850) the MASK_WDT_RESET_REQUEST register
> is replaced with CLUSTERx_NONCPU_INT_EN, and its mask bit value meaning
> was reversed: for new register the bit value "1" means "Interrupt
> enabled", while for MASK_WDT_RESET_REQUEST register "1" means "Mask the
> interrupt" (i.e. "Interrupt disabled").
> 
> Introduce "mask_reset_inv" boolean field in driver data structure; when
> that field is "true", mask register handling function will invert the
> value before setting it to the register.
> 
> This commit doesn't bring any functional change to existing devices, but
> merely provides an infrastructure for upcoming chips support.
> 
> Signed-off-by: Sam Protsenko <semen.protsenko at linaro.org>
> ---
> Changes in v2:
>   - (none): it's a new patch
> 
>  drivers/watchdog/s3c2410_wdt.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at canonical.com>


Best regards,
Krzysztof