| /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/soc/rockchip/ |
| H A D | power_domain.txt | 1 * Rockchip Power Domains
3 Rockchip processors include support for multiple power domains which can be
4 powered up/down by software based on different application scenes to save power.
6 Required properties for power domain controller:
7 - compatible: Should be one of the following.
8 "rockchip,px30-power-controller" - for PX30 SoCs.
9 "rockchip,rv1126-power-controller" - for RV1126 SoCs
10 "rockchip,rk1808-power-controller" - for RK1808 SoCs
11 "rockchip,rk3036-power-controller" - for RK3036 SoCs.
12 "rockchip,rk3066-power-controller" - for RK3066 SoCs.
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| /OK3568_Linux_fs/u-boot/include/ |
| H A D | power-domain.h | 4 * SPDX-License-Identifier: GPL-2.0
11 * A power domain is a portion of an SoC or chip that is powered by a
12 * switchable source of power. In many cases, software has control over the
13 * power domain, and can turn the power source on or off. This is typically
14 * done to save power by powering off unused devices, or to enable software
16 * drivers to turn power domains on and off.
18 * A driver that implements UCLASS_POWER_DOMAIN is a power domain controller or
19 * provider. A controller will often implement multiple separate power domains,
21 * power-domain-uclass.h describes the interface which power domain controllers
24 * Depending on the power domain controller hardware, changing the state of a
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| H A D | power-domain-uclass.h | 4 * SPDX-License-Identifier: GPL-2.0
10 /* See power-domain.h for background documentation. */
12 #include <power-domain.h>
17 * struct power_domain_ops - The functions that a power domain controller driver
22 * of_xlate - Translate a client's device-tree (OF) power domain
25 * The power domain core calls this function as the first step in
28 * If this function pointer is set to NULL, the power domain core will
29 * use a default implementation, which assumes #power-domain-cells =
30 * <1>, and that the DT cell contains a simple integer power domain ID.
32 * At present, the power domain API solely supports device-tree. If
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| /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/power/ |
| H A D | power-domain.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/power-domain.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rafael J. Wysocki <rjw@rjwysocki.net>
11 - Kevin Hilman <khilman@kernel.org>
12 - Ulf Hansson <ulf.hansson@linaro.org>
16 used for power gating of selected IP blocks for power saving by reduced leakage
19 This device tree binding can be used to bind PM domain consumer devices with
20 their PM domains provided by PM domain providers. A PM domain provider can be
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| H A D | power_domain.txt | 4 used for power gating of selected IP blocks for power saving by reduced leakage
7 This device tree binding can be used to bind PM domain consumer devices with
8 their PM domains provided by PM domain providers. A PM domain provider can be
11 phandle arguments (so called PM domain specifiers) of length specified by the
12 #power-domain-cells property in the PM domain provider node.
14 ==PM domain providers==
16 See power-domain.yaml.
18 ==PM domain consumers==
21 - power-domains : A list of PM domain specifiers, as defined by bindings of
22 the power controller that is the PM domain provider.
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| H A D | fsl,imx-gpcv2.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale i.MX General Power Controller v2
10 - Andrey Smirnov <andrew.smirnov@gmail.com>
13 The i.MX7S/D General Power Control (GPC) block contains Power Gating
14 Control (PGC) for various power domains.
16 Power domains contained within GPC node are generic power domain
18 Documentation/devicetree/bindings/power/power-domain.yaml, which are
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| H A D | renesas,sysc-rmobile.txt | 1 DT bindings for the Renesas R-Mobile System Controller
5 The R-Mobile System Controller provides the following functions:
6 - Boot mode management,
7 - Reset generation,
8 - Power management.
11 - compatible: Should be "renesas,sysc-<soctype>", "renesas,sysc-rmobile" as
14 - "renesas,sysc-r8a73a4" (R-Mobile APE6)
15 - "renesas,sysc-r8a7740" (R-Mobile A1)
16 - "renesas,sysc-sh73a0" (SH-Mobile AG5)
17 - reg: Two address start and address range blocks for the device:
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| H A D | fsl,imx-gpc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/power/fsl,imx-gpc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale i.MX General Power Controller
10 - Philipp Zabel <p.zabel@pengutronix.de>
13 The i.MX6 General Power Control (GPC) block contains DVFS load tracking
14 counters and Power Gating Control (PGC).
16 The power domains are generic power domain providers as documented in
17 Documentation/devicetree/bindings/power/power-domain.yaml. They are
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| H A D | pd-samsung.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/pd-samsung.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Samsung Exynos SoC Power Domains
10 - Krzysztof Kozlowski <krzk@kernel.org>
13 Exynos processors include support for multiple power domains which are used
14 to gate power to one or more peripherals on the processor.
17 - $ref: power-domain.yaml#
22 - samsung,exynos4210-pd
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| H A D | amlogic,meson-gx-pwrc.txt | 1 Amlogic Meson Power Controller
4 The Amlogic Meson SoCs embeds an internal Power domain controller.
6 VPU Power Domain
7 ----------------
9 The Video Processing Unit power domain is controlled by this power controller,
10 but the domain requires some external resources to meet the correct power
12 The bindings must respect the power domain bindings as described in the file
13 power-domain.yaml
16 ---------------------
19 - compatible: should be one of the following :
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| /OK3568_Linux_fs/u-boot/drivers/power/io-domain/ |
| H A D | rockchip-io-domain.su | |
| /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/soc/mediatek/ |
| H A D | scpsys.txt | 4 The System Control Processor System (SCPSYS) has several power management
7 The System Power Manager (SPM) inside the SCPSYS is for the MTCMOS power
8 domain control.
10 The driver implements the Generic PM domain bindings described in
11 power/power-domain.yaml. It provides the power domains defined in
12 - include/dt-bindings/power/mt8173-power.h
13 - include/dt-bindings/power/mt6797-power.h
14 - include/dt-bindings/power/mt6765-power.h
15 - include/dt-bindings/power/mt2701-power.h
16 - include/dt-bindings/power/mt2712-power.h
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| /OK3568_Linux_fs/kernel/Documentation/power/regulator/ |
| H A D | overview.rst | 11 The intention is to allow systems to dynamically control regulator power output
12 in order to save power and prolong battery life. This applies to both voltage
26 - Regulator
27 - Electronic device that supplies power to other devices.
31 Input Voltage -> Regulator -> Output Voltage
34 - PMIC
35 - Power Management IC. An IC that contains numerous
39 - Consumer
40 - Electronic device that is supplied power by a regulator.
41 Consumers can be classified into two types:-
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| /OK3568_Linux_fs/kernel/drivers/base/power/ |
| H A D | common.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/common.c - Common device power management code.
15 #include "power.h"
18 * dev_pm_get_subsys_data - Create or refcount power.subsys_data for device.
21 * If power.subsys_data is NULL, point it to a new object, otherwise increment
31 return -ENOMEM; in dev_pm_get_subsys_data()
33 spin_lock_irq(&dev->power.lock); in dev_pm_get_subsys_data()
35 if (dev->power.subsys_data) { in dev_pm_get_subsys_data()
36 dev->power.subsys_data->refcount++; in dev_pm_get_subsys_data()
38 spin_lock_init(&psd->lock); in dev_pm_get_subsys_data()
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| H A D | domain.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/domain.c - Common code related to device power domains.
26 #include "power.h"
35 __routine = genpd->dev_ops.callback; \
54 mutex_lock(&genpd->mlock); in genpd_lock_mtx()
60 mutex_lock_nested(&genpd->mlock, depth); in genpd_lock_nested_mtx()
65 return mutex_lock_interruptible(&genpd->mlock); in genpd_lock_interruptible_mtx()
70 return mutex_unlock(&genpd->mlock); in genpd_unlock_mtx()
81 __acquires(&genpd->slock) in genpd_lock_spin()
85 spin_lock_irqsave(&genpd->slock, flags); in genpd_lock_spin()
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| /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/arm/ |
| H A D | psci.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Power State Coordination Interface (PSCI)
10 - Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
14 ARM DEN 0022A ("Power State Coordination Interface System Software on ARM
15 processors") can be used by Linux to initiate various CPU-centric power
25 r0 => 32-bit Function ID / return value
26 {r1 - r3} => Parameters
31 [2] Power State Coordination Interface (PSCI) specification
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| /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/soc/ti/ |
| H A D | sci-pm-domain.txt | 1 Texas Instruments TI-SCI Generic Power Domain
2 ---------------------------------------------
7 controller happens through a protocol known as TI-SCI [1].
11 PM Domain Node
13 The PM domain node represents the global PM domain managed by the PMMC, which
14 in this case is the implementation as documented by the generic PM domain
15 bindings in Documentation/devicetree/bindings/power/power-domain.yaml. Because
20 --------------------
21 - compatible: should be "ti,sci-pm-domain"
22 - #power-domain-cells: Can be one of the following:
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| /OK3568_Linux_fs/u-boot/drivers/power/domain/ |
| H A D | Kconfig | 1 menu "Power Domain Support"
4 bool "Enable power domain support using Driver Model"
7 Enable support for the power domain driver class. Many SoCs allow
8 power to be applied to or removed from portions of the SoC (power
9 domains). This may be used to save power. This API provides the
10 means to control such power management hardware.
13 bool "Enable the BCM6328 power domain driver"
16 Enable support for manipulating BCM6345 power domains via MMIO
20 bool "Enable the sandbox power domain test driver"
23 Enable support for a test power domain driver implementation, which
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| /OK3568_Linux_fs/kernel/drivers/gpu/drm/i915/display/ |
| H A D | intel_display_power.h | 1 /* SPDX-License-Identifier: MIT */
88 * IDs used to look up power wells. Power wells accessed directly bypassing
89 * the power domains framework must be assigned a unique ID. The rest of power
128 * interrupts located on the well). Called after the 0->1 refcount
135 * the 1->0 refcount transition.
151 /* Power well structure for haswell */
156 /* unique identifier for this power well */
159 * Arbitraty data associated with this power well. Platform and power
165 * request/status flag index in the PUNIT power well
176 * request/status flag index in the power well
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| /OK3568_Linux_fs/kernel/include/linux/ |
| H A D | energy_model.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
14 * em_perf_state - Performance state of a performance domain
16 * @power: The power consumed at this level, in milli-watts (by 1 CPU or
17 by a registered device). It can be a total power: static and
20 * energy calculation. Equal to: power * max_frequency / frequency
24 unsigned long power; member
29 * em_perf_domain - Performance domain
32 * @milliwatts: Flag indicating the power values are in milli-Watts
34 * @cpus: Cpumask covering the CPUs of the domain. It's here
39 * In case of CPU device, a "performance domain" represents a group of CPUs
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| /OK3568_Linux_fs/kernel/drivers/gpu/arm/mali400/mali/common/ |
| H A D | mali_pm.c | 2 * Copyright (C) 2011-2017 ARM Limited. All rights reserved.
8 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
32 /* lock protecting power state (including pm_domains) */
35 /* the wanted domain mask (protected by pm_lock_state) */
38 /* used to deferring the actual power changes */
41 /* lock protecting power change execution */
49 * This can be different from pmu_mask_current right after GPU power on
59 /* The relative core power cost */
77 * for GPU will not power off by runtime */
122 * We have a Mali PMU, set the correct domain in mali_pm_initialize()
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| /OK3568_Linux_fs/kernel/drivers/soc/imx/ |
| H A D | gpc.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2015-2017 Pengutronix, Lucas Stach <kernel@pengutronix.de>
4 * Copyright 2011-2013 Freescale Semiconductor, Inc.
65 /* Read ISO and ISO2SW power down delays */ in imx6_pm_domain_power_off()
66 regmap_read(pd->regmap, pd->reg_offs + GPC_PGC_PDNSCR_OFFS, &val); in imx6_pm_domain_power_off()
70 /* Gate off domain when powered down */ in imx6_pm_domain_power_off()
71 regmap_update_bits(pd->regmap, pd->reg_offs + GPC_PGC_CTRL_OFFS, in imx6_pm_domain_power_off()
74 /* Request GPC to power down domain */ in imx6_pm_domain_power_off()
75 val = BIT(pd->cntr_pdn_bit); in imx6_pm_domain_power_off()
76 regmap_update_bits(pd->regmap, GPC_CNTR, val, val); in imx6_pm_domain_power_off()
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| /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/clock/ti/davinci/ |
| H A D | psc.txt | 1 Binding for TI DaVinci Power Sleep Controller (PSC)
3 The PSC provides power management, clock gating and reset functionality. It is
7 - compatible: shall be one of:
8 - "ti,da850-psc0" for PSC0 on DA850/OMAP-L138/AM18XX
9 - "ti,da850-psc1" for PSC1 on DA850/OMAP-L138/AM18XX
10 - reg: physical base address and size of the controller's register area
11 - #clock-cells: from common clock binding; shall be set to 1
12 - #power-domain-cells: from generic power domain binding; shall be set to 1.
13 - clocks: phandles to clocks corresponding to the clock-names property
14 - clock-names: list of parent clock names - depends on compatible value
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| /OK3568_Linux_fs/kernel/include/dt-bindings/power/ |
| H A D | qcom-rpmpd.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
7 /* SDM845 Power Domain Indexes */
18 /* SM8150 Power Domain Indexes */
31 /* SM8250 Power Domain Indexes */
43 /* SC7180 Power Domain Indexes */
53 /* SDM845 Power Domain performance levels */
67 /* MSM8976 Power Domain Indexes */
75 /* MSM8996 Power Domain Indexes */
84 /* MSM8998 Power Domain Indexes */
96 /* QCS404 Power Domains */
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| /OK3568_Linux_fs/kernel/drivers/soc/bcm/ |
| H A D | raspberrypi-power.c | 1 // SPDX-License-Identifier: GPL-2.0
13 #include <dt-bindings/power/raspberrypi-power.h>
14 #include <soc/bcm2835/raspberrypi-firmware.h>
17 * Firmware indices for the old power domains interface. Only a few
24 u32 domain; member
43 u32 domain; member
48 * Asks the firmware to enable or disable power on a specific power
49 * domain.
55 packet.domain = rpi_domain->domain; in rpi_firmware_set_power()
57 return rpi_firmware_property(rpi_domain->fw, in rpi_firmware_set_power()
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