On Sat, Apr 1, 2017 at 2:27 AM, Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> wrote:
> This patch adds API's to read/write/update PMC GC registers.
> PMC dependent devices like iTCO_WDT, Telemetry has requirement
iTCO_wdt
> to acces GCR registers. These API's can be used for this
> purpose.
> --- a/drivers/platform/x86/intel_pmc_ipc.c
> +++ b/drivers/platform/x86/intel_pmc_ipc.c
> +static inline int is_gcr_valid(u32 offset)
Pointer to ipcdev should be a parameter to this function.
> +{
> + if (!ipcdev.has_gcr_regs)
> + return -EACCES;
> +
> + if (offset > PLAT_RESOURCE_GCR_SIZE)
> + return -EINVAL;
> +
> + return 0;
> +}
> +/**
> + * intel_pmc_gcr_update() - Update PMC GCR register bits
> + * @offset: offset of GCR register from GCR address base
> + * @mask: bit mask for update operation
> + * @val: update value
> + *
> + * Updates the bits of given GCR register as specified by
> + * mask and val
-> * @mask and @val.
You would need to refresh how to use kernel doc.
> + *
> + * Return: negative value on error or 0 on success.
> + */
With Best Regards,
Andy Shevchenko
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