On 20/06/16 18:53, Kevin Hilman wrote:
Sudeep Holla <sudeep.ho...@arm.com> writes:

This patch hooks up the support for device power domain provided by
SCPI using the Linux generic power domain infrastructure.

Cc: "Rafael J. Wysocki" <r...@rjwysocki.net>
Cc: Kevin Hilman <khil...@kernel.org>
Cc: Ulf Hansson <ulf.hans...@linaro.org>
Cc: linux...@vger.kernel.org
Signed-off-by: Sudeep Holla <sudeep.ho...@arm.com>

[...]

+static int scpi_pd_power(struct scpi_pm_domain *pd, bool power_on)
+{
+       int ret;
+       enum scpi_power_domain_state state;
+
+       if (power_on)
+               state = SCPI_PD_STATE_ON;
+       else
+               state = SCPI_PD_STATE_OFF;
+
+       ret = pd->ops->device_set_power_state(pd->domain, state);

There should probably be some sanity checks here that these function
pointers are non-NULL.


Yes I agree. Since with the current scpi driver, if scpi_ops is
populated, it's all non-NULL I skipped the sanity check as the probe
will check for non-NULL scpi_ops.

However, with extension work by Neil I agree, we may have to revisit all
such callers.

--
Regards,
Sudeep

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