Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit ad656a6a authored by Viresh Kumar's avatar Viresh Kumar Committed by Rafael J. Wysocki
Browse files

PM / OPP: Add support for opp-suspend 



With "operating-points-v2" bindings, it's possible to specify the OPP to
which the device must be switched, before suspending.

This patch adds support for getting that information.

Reviewed-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Reviewed-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 06441658

drivers/base/power/opp.c

+11 −0
Original line number Original line Diff line number Diff line
@@ -133,6 +133,7 @@ struct device_opp { 
	struct device_node *np;

	struct device_node *np;

	unsigned long clock_latency_ns_max;

	unsigned long clock_latency_ns_max;

	bool shared_opp;

	bool shared_opp;

	struct dev_pm_opp *suspend_opp;

};

};





/*

/*
@@ -923,6 +924,16 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np) 
	if (ret)

	if (ret)

		goto free_opp;

		goto free_opp;





	/* OPP to select on device suspend */

	if (of_property_read_bool(np, "opp-suspend")) {

		if (dev_opp->suspend_opp)

			dev_warn(dev, "%s: Multiple suspend OPPs found (%lu %lu)\n",

				 __func__, dev_opp->suspend_opp->rate,

				 new_opp->rate);

		else

			dev_opp->suspend_opp = new_opp;

	}



	if (new_opp->clock_latency_ns > dev_opp->clock_latency_ns_max)

	if (new_opp->clock_latency_ns > dev_opp->clock_latency_ns_max)

		dev_opp->clock_latency_ns_max = new_opp->clock_latency_ns;

		dev_opp->clock_latency_ns_max = new_opp->clock_latency_ns;