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Commit 3513ac74 authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branches 'pm-avs', 'pm-clk', 'pm-devfreq' and 'pm-sleep' 

* pm-avs:
  PM / AVS: rockchip-io: add io selectors and supplies for rk3399

* pm-clk:
  PM / clk: Add support for obtaining clocks from device-tree

* pm-devfreq:
  PM / devfreq: Spelling s/frequnecy/frequency/

* pm-sleep:
  ACPI / PM: Runtime resume devices when waking from hibernate
  PM / sleep: Clear pm_suspend_global_flags upon hibernate
parents 33068b61 f447671b 02113ba9 027b6934 fbda4b38

Documentation/devicetree/bindings/power/rockchip-io-domain.txt

+11 −0
Original line number Diff line number Diff line
@@ -35,6 +35,8 @@ Required properties: 
  - "rockchip,rk3288-io-voltage-domain" for rk3288

  - "rockchip,rk3368-io-voltage-domain" for rk3368

  - "rockchip,rk3368-pmu-io-voltage-domain" for rk3368 pmu-domains

  - "rockchip,rk3399-io-voltage-domain" for rk3399

  - "rockchip,rk3399-pmu-io-voltage-domain" for rk3399 pmu-domains

- rockchip,grf: phandle to the syscon managing the "general register files"
@@ -79,6 +81,15 @@ Possible supplies for rk3368 pmu-domains: 
- pmu-supply:    The supply connected to PMUIO_VDD.

- vop-supply:    The supply connected to LCDC_VDD.



Possible supplies for rk3399:

- bt656-supply:  The supply connected to APIO2_VDD.

- audio-supply:  The supply connected to APIO5_VDD.

- sdmmc-supply:  The supply connected to SDMMC0_VDD.

- gpio1830       The supply connected to APIO4_VDD.



Possible supplies for rk3399 pmu-domains:

- pmu1830-supply:The supply connected to PMUIO2_VDD.



Example:



	io-domains {

drivers/acpi/sleep.c

+1 −0
Original line number Diff line number Diff line
@@ -748,6 +748,7 @@ static int acpi_hibernation_enter(void) 


static void acpi_hibernation_leave(void)

{

	pm_set_resume_via_firmware();

	/*

	 * If ACPI is not enabled by the BIOS and the boot kernel, we need to

	 * enable it here.

drivers/base/power/clock_ops.c

+89 −0
Original line number Diff line number Diff line
@@ -137,6 +137,62 @@ int pm_clk_add_clk(struct device *dev, struct clk *clk) 
	return __pm_clk_add(dev, NULL, clk);

}





/**

 * of_pm_clk_add_clks - Start using device clock(s) for power management.

 * @dev: Device whose clock(s) is going to be used for power management.

 *

 * Add a series of clocks described in the 'clocks' device-tree node for

 * a device to the list of clocks used for the power management of @dev.

 * On success, returns the number of clocks added. Returns a negative

 * error code if there are no clocks in the device node for the device

 * or if adding a clock fails.

 */

int of_pm_clk_add_clks(struct device *dev)

{

	struct clk **clks;

	unsigned int i, count;

	int ret;



	if (!dev || !dev->of_node)

		return -EINVAL;



	count = of_count_phandle_with_args(dev->of_node, "clocks",

					   "#clock-cells");

	if (count == 0)

		return -ENODEV;



	clks = kcalloc(count, sizeof(*clks), GFP_KERNEL);

	if (!clks)

		return -ENOMEM;



	for (i = 0; i < count; i++) {

		clks[i] = of_clk_get(dev->of_node, i);

		if (IS_ERR(clks[i])) {

			ret = PTR_ERR(clks[i]);

			goto error;

		}



		ret = pm_clk_add_clk(dev, clks[i]);

		if (ret) {

			clk_put(clks[i]);

			goto error;

		}

	}



	kfree(clks);



	return i;



error:

	while (i--)

		pm_clk_remove_clk(dev, clks[i]);



	kfree(clks);



	return ret;

}



/**

 * __pm_clk_remove - Destroy PM clock entry.

 * @ce: PM clock entry to destroy.
@@ -197,6 +253,39 @@ void pm_clk_remove(struct device *dev, const char *con_id) 
	__pm_clk_remove(ce);

}



/**

 * pm_clk_remove_clk - Stop using a device clock for power management.

 * @dev: Device whose clock should not be used for PM any more.

 * @clk: Clock pointer

 *

 * Remove the clock pointed to by @clk from the list of clocks used for

 * the power management of @dev.

 */

void pm_clk_remove_clk(struct device *dev, struct clk *clk)

{

	struct pm_subsys_data *psd = dev_to_psd(dev);

	struct pm_clock_entry *ce;



	if (!psd || !clk)

		return;



	spin_lock_irq(&psd->lock);



	list_for_each_entry(ce, &psd->clock_list, node) {

		if (clk == ce->clk)

			goto remove;

	}



	spin_unlock_irq(&psd->lock);

	return;



 remove:

	list_del(&ce->node);

	spin_unlock_irq(&psd->lock);



	__pm_clk_remove(ce);

}



/**

 * pm_clk_init - Initialize a device's list of power management clocks.

 * @dev: Device to initialize the list of PM clocks for.

drivers/devfreq/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -61,7 +61,7 @@ config DEVFREQ_GOV_USERSPACE 
	  Sets the frequency at the user specified one.

	  This governor returns the user configured frequency if there

	  has been an input to /sys/devices/.../power/devfreq_set_freq.

	  Otherwise, the governor does not change the frequnecy

	  Otherwise, the governor does not change the frequency

	  given at the initialization.



comment "DEVFREQ Drivers"

drivers/power/avs/rockchip-io-domain.c

100644 → 100755
+58 −0
Original line number Diff line number Diff line
@@ -47,6 +47,10 @@ 
#define RK3368_SOC_CON15_FLASH0		BIT(14)

#define RK3368_SOC_FLASH_SUPPLY_NUM	2



#define RK3399_PMUGRF_CON0		0x180

#define RK3399_PMUGRF_CON0_VSEL		BIT(8)

#define RK3399_PMUGRF_VSEL_SUPPLY_NUM	9



struct rockchip_iodomain;



/**
@@ -181,6 +185,25 @@ static void rk3368_iodomain_init(struct rockchip_iodomain *iod) 
		dev_warn(iod->dev, "couldn't update flash0 ctrl\n");

}



static void rk3399_pmu_iodomain_init(struct rockchip_iodomain *iod)

{

	int ret;

	u32 val;



	/* if no pmu io supply we should leave things alone */

	if (!iod->supplies[RK3399_PMUGRF_VSEL_SUPPLY_NUM].reg)

		return;



	/*

	 * set pmu io iodomain to also use this framework

	 * instead of a special gpio.

	 */

	val = RK3399_PMUGRF_CON0_VSEL | (RK3399_PMUGRF_CON0_VSEL << 16);

	ret = regmap_write(iod->grf, RK3399_PMUGRF_CON0, val);

	if (ret < 0)

		dev_warn(iod->dev, "couldn't update pmu io iodomain ctrl\n");

}



/*

 * On the rk3188 the io-domains are handled by a shared register with the

 * lower 8 bits being still being continuing drive-strength settings.
@@ -252,6 +275,33 @@ static const struct rockchip_iodomain_soc_data soc_data_rk3368_pmu = { 
	},

};



static const struct rockchip_iodomain_soc_data soc_data_rk3399 = {

	.grf_offset = 0xe640,

	.supply_names = {

		"bt656",		/* APIO2_VDD */

		"audio",		/* APIO5_VDD */

		"sdmmc",		/* SDMMC0_VDD */

		"gpio1830",		/* APIO4_VDD */

	},

};



static const struct rockchip_iodomain_soc_data soc_data_rk3399_pmu = {

	.grf_offset = 0x180,

	.supply_names = {

		NULL,

		NULL,

		NULL,

		NULL,

		NULL,

		NULL,

		NULL,

		NULL,

		NULL,

		"pmu1830",		/* PMUIO2_VDD */

	},

	.init = rk3399_pmu_iodomain_init,

};



static const struct of_device_id rockchip_iodomain_match[] = {

	{

		.compatible = "rockchip,rk3188-io-voltage-domain",
@@ -269,6 +319,14 @@ static const struct of_device_id rockchip_iodomain_match[] = { 
		.compatible = "rockchip,rk3368-pmu-io-voltage-domain",

		.data = (void *)&soc_data_rk3368_pmu

	},

	{

		.compatible = "rockchip,rk3399-io-voltage-domain",

		.data = (void *)&soc_data_rk3399

	},

	{

		.compatible = "rockchip,rk3399-pmu-io-voltage-domain",

		.data = (void *)&soc_data_rk3399_pmu

	},

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(of, rockchip_iodomain_match);