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Commit bbc17bb8 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branch 'pm-devfreq' 

* pm-devfreq:
  devfreq: rk3399_dmc: Don't use OPP structures outside of RCU locks
  devfreq: rk3399_dmc: Remove dangling rcu_read_unlock()
  devfreq: exynos: Don't use OPP structures outside of RCU locks
  PM / devfreq: rk3399_dmc: Use the resource-managed function to add devfreq dev
  PM / devfreq: correct comment typo.
  PM / devfreq: exynos-ppmu: Remove unused mutex from struct exynos_ppmu
  PM / devfreq: exynos-ppmu: ppmu_events array should not be NULL terminated
  PM / devfreq: exynos-ppmu: Fix module autoload
  PM / devfreq: rockchip-dfi: Fix module autoload
  PM / devfreq: exynos-nocp: Fix module autoload
  PM / devfreq: rk3399_dmc: Fix module autoload
parents 631ddaba e37d3508

drivers/devfreq/devfreq.c

+1 −1
Original line number Diff line number Diff line
@@ -850,7 +850,7 @@ int devfreq_add_governor(struct devfreq_governor *governor) 
EXPORT_SYMBOL(devfreq_add_governor);



/**

 * devfreq_remove_device() - Remove devfreq feature from a device.

 * devfreq_remove_governor() - Remove devfreq feature from a device.

 * @governor:	the devfreq governor to be removed

 */

int devfreq_remove_governor(struct devfreq_governor *governor)

drivers/devfreq/event/exynos-nocp.c

+1 −0
Original line number Diff line number Diff line
@@ -190,6 +190,7 @@ static const struct of_device_id exynos_nocp_id_match[] = { 
	{ .compatible = "samsung,exynos5420-nocp", },

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, exynos_nocp_id_match);



static struct regmap_config exynos_nocp_regmap_config = {

	.reg_bits = 32,

drivers/devfreq/event/exynos-ppmu.c

+1 −5
Original line number Diff line number Diff line
@@ -15,7 +15,6 @@ 
#include <linux/io.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/mutex.h>

#include <linux/of_address.h>

#include <linux/platform_device.h>

#include <linux/suspend.h>
@@ -34,7 +33,6 @@ struct exynos_ppmu { 
	unsigned int num_events;



	struct device *dev;

	struct mutex lock;



	struct exynos_ppmu_data ppmu;

};
@@ -90,8 +88,6 @@ struct __exynos_ppmu_events { 
	PPMU_EVENT(d1-cpu),

	PPMU_EVENT(d1-general),

	PPMU_EVENT(d1-rt),



	{ /* sentinel */ },

};



static int exynos_ppmu_find_ppmu_id(struct devfreq_event_dev *edev)
@@ -351,6 +347,7 @@ static const struct of_device_id exynos_ppmu_id_match[] = { 
	},

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, exynos_ppmu_id_match);



static struct devfreq_event_ops *exynos_bus_get_ops(struct device_node *np)

{
@@ -463,7 +460,6 @@ static int exynos_ppmu_probe(struct platform_device *pdev) 
	if (!info)

		return -ENOMEM;



	mutex_init(&info->lock);

	info->dev = &pdev->dev;



	/* Parse dt data to get resource */

drivers/devfreq/event/rockchip-dfi.c

+1 −0
Original line number Diff line number Diff line
@@ -188,6 +188,7 @@ static const struct of_device_id rockchip_dfi_id_match[] = { 
	{ .compatible = "rockchip,rk3399-dfi" },

	{ },

};

MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match);



static int rockchip_dfi_probe(struct platform_device *pdev)

{

drivers/devfreq/exynos-bus.c

+14 −15
Original line number Diff line number Diff line
@@ -35,7 +35,7 @@ struct exynos_bus { 
	unsigned int edev_count;

	struct mutex lock;



	struct dev_pm_opp *curr_opp;

	unsigned long curr_freq;



	struct regulator *regulator;

	struct clk *clk;
@@ -99,7 +99,7 @@ static int exynos_bus_target(struct device *dev, unsigned long *freq, u32 flags) 
{

	struct exynos_bus *bus = dev_get_drvdata(dev);

	struct dev_pm_opp *new_opp;

	unsigned long old_freq, new_freq, old_volt, new_volt, tol;

	unsigned long old_freq, new_freq, new_volt, tol;

	int ret = 0;



	/* Get new opp-bus instance according to new bus clock */
@@ -113,8 +113,7 @@ static int exynos_bus_target(struct device *dev, unsigned long *freq, u32 flags) 


	new_freq = dev_pm_opp_get_freq(new_opp);

	new_volt = dev_pm_opp_get_voltage(new_opp);

	old_freq = dev_pm_opp_get_freq(bus->curr_opp);

	old_volt = dev_pm_opp_get_voltage(bus->curr_opp);

	old_freq = bus->curr_freq;

	rcu_read_unlock();



	if (old_freq == new_freq)
@@ -146,7 +145,7 @@ static int exynos_bus_target(struct device *dev, unsigned long *freq, u32 flags) 
			goto out;

		}

	}

	bus->curr_opp = new_opp;

	bus->curr_freq = new_freq;



	dev_dbg(dev, "Set the frequency of bus (%lukHz -> %lukHz)\n",

			old_freq/1000, new_freq/1000);
@@ -163,9 +162,7 @@ static int exynos_bus_get_dev_status(struct device *dev, 
	struct devfreq_event_data edata;

	int ret;



	rcu_read_lock();

	stat->current_frequency = dev_pm_opp_get_freq(bus->curr_opp);

	rcu_read_unlock();

	stat->current_frequency = bus->curr_freq;



	ret = exynos_bus_get_event(bus, &edata);

	if (ret < 0) {
@@ -226,7 +223,7 @@ static int exynos_bus_passive_target(struct device *dev, unsigned long *freq, 
	}



	new_freq = dev_pm_opp_get_freq(new_opp);

	old_freq = dev_pm_opp_get_freq(bus->curr_opp);

	old_freq = bus->curr_freq;

	rcu_read_unlock();



	if (old_freq == new_freq)
@@ -242,7 +239,7 @@ static int exynos_bus_passive_target(struct device *dev, unsigned long *freq, 
	}



	*freq = new_freq;

	bus->curr_opp = new_opp;

	bus->curr_freq = new_freq;



	dev_dbg(dev, "Set the frequency of bus (%lukHz -> %lukHz)\n",

			old_freq/1000, new_freq/1000);
@@ -335,6 +332,7 @@ static int exynos_bus_parse_of(struct device_node *np, 
			      struct exynos_bus *bus)

{

	struct device *dev = bus->dev;

	struct dev_pm_opp *opp;

	unsigned long rate;

	int ret;
@@ -352,22 +350,23 @@ static int exynos_bus_parse_of(struct device_node *np, 
	}



	/* Get the freq and voltage from OPP table to scale the bus freq */

	rcu_read_lock();

	ret = dev_pm_opp_of_add_table(dev);

	if (ret < 0) {

		dev_err(dev, "failed to get OPP table\n");

		rcu_read_unlock();

		goto err_clk;

	}



	rate = clk_get_rate(bus->clk);

	bus->curr_opp = devfreq_recommended_opp(dev, &rate, 0);

	if (IS_ERR(bus->curr_opp)) {



	rcu_read_lock();

	opp = devfreq_recommended_opp(dev, &rate, 0);

	if (IS_ERR(opp)) {

		dev_err(dev, "failed to find dev_pm_opp\n");

		rcu_read_unlock();

		ret = PTR_ERR(bus->curr_opp);

		ret = PTR_ERR(opp);

		goto err_opp;

	}

	bus->curr_freq = dev_pm_opp_get_freq(opp);

	rcu_read_unlock();



	return 0;