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Commit 7e535993 authored by Viresh Kumar's avatar Viresh Kumar
Browse files

OPP: Separate out custom OPP handler specific code 



Create a separate routine to take care of custom set_opp() handler
specific stuff.

Reviewed-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent 61d8e7c7

drivers/opp/core.c

+40 −27
Original line number Diff line number Diff line
@@ -635,6 +635,34 @@ static int _generic_set_opp_regulator(const struct opp_table *opp_table, 
	return ret;

}



static int _set_opp_custom(const struct opp_table *opp_table,

			   struct device *dev, unsigned long old_freq,

			   unsigned long freq,

			   struct dev_pm_opp_supply *old_supply,

			   struct dev_pm_opp_supply *new_supply)

{

	struct dev_pm_set_opp_data *data;

	int size;



	data = opp_table->set_opp_data;

	data->regulators = opp_table->regulators;

	data->regulator_count = opp_table->regulator_count;

	data->clk = opp_table->clk;

	data->dev = dev;



	data->old_opp.rate = old_freq;

	size = sizeof(*old_supply) * opp_table->regulator_count;

	if (IS_ERR(old_supply))

		memset(data->old_opp.supplies, 0, size);

	else

		memcpy(data->old_opp.supplies, old_supply, size);



	data->new_opp.rate = freq;

	memcpy(data->new_opp.supplies, new_supply, size);



	return opp_table->set_opp(data);

}



/**

 * dev_pm_opp_set_rate() - Configure new OPP based on frequency

 * @dev:	 device for which we do this operation
@@ -649,7 +677,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) 
	unsigned long freq, old_freq;

	struct dev_pm_opp *old_opp, *opp;

	struct clk *clk;

	int ret, size;

	int ret;



	if (unlikely(!target_freq)) {

		dev_err(dev, "%s: Invalid target frequency %lu\n", __func__,
@@ -702,8 +730,17 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) 
	dev_dbg(dev, "%s: switching OPP: %lu Hz --> %lu Hz\n", __func__,

		old_freq, freq);



	if (opp_table->set_opp) {

		ret = _set_opp_custom(opp_table, dev, old_freq, freq,

				      IS_ERR(old_opp) ? NULL : old_opp->supplies,

				      opp->supplies);

	} else if (opp_table->regulators) {

		ret = _generic_set_opp_regulator(opp_table, dev, old_freq, freq,

						 IS_ERR(old_opp) ? NULL : old_opp->supplies,

						 opp->supplies);

	} else {

		/* Only frequency scaling */

	if (!opp_table->regulators) {



		/*

		 * We don't support devices with both regulator and

		 * domain performance-state for now.
@@ -714,30 +751,6 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq) 
						      opp->pstate);

		else

			ret = _generic_set_opp_clk_only(dev, clk, old_freq, freq);

	} else if (!opp_table->set_opp) {

		ret = _generic_set_opp_regulator(opp_table, dev, old_freq, freq,

						 IS_ERR(old_opp) ? NULL : old_opp->supplies,

						 opp->supplies);

	} else {

		struct dev_pm_set_opp_data *data;



		data = opp_table->set_opp_data;

		data->regulators = opp_table->regulators;

		data->regulator_count = opp_table->regulator_count;

		data->clk = clk;

		data->dev = dev;



		data->old_opp.rate = old_freq;

		size = sizeof(*opp->supplies) * opp_table->regulator_count;

		if (IS_ERR(old_opp))

			memset(data->old_opp.supplies, 0, size);

		else

			memcpy(data->old_opp.supplies, old_opp->supplies, size);



		data->new_opp.rate = freq;

		memcpy(data->new_opp.supplies, opp->supplies, size);



		ret = opp_table->set_opp(data);

	}



	dev_pm_opp_put(opp);