| /Linux-v5.10/include/linux/ |
| D | lcd.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
5 * Copyright (C) 2003,2004 Hewlett-Packard Company
19 * lcd_device->ops_lock is an internal backlight lock protecting the ops
36 /* The maximum value for contrast (read-only) */
41 /* Get the LCD panel power status (0: full on, 1..3: controller
42 power on, flat panel power off, 4: full off), see FB_BLANK_XXX */
44 /* Enable or disable power to the LCD (0: on; 4: off, see FB_BLANK_XXX) */
45 int (*set_power)(struct lcd_device *, int power);
46 /* Get the current contrast setting (0-max_contrast) */
77 lcd power off and 1, lcd power on. */
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| D | clocksource.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
14 #include <linux/time.h>
34 * struct clocksource - hardware abstraction for a free running counter
35 * Provides mostly state-free accessors to the underlying hardware.
36 * This is the structure used for system time.
42 * @shift: Cycle to nanosecond divisor (power of two)
43 * @max_idle_ns: Maximum idle time permitted by the clocksource (nsecs)
45 * @archdata: Optional arch-specific data
54 * 1-99: Unfit for real use
56 * 100-199: Base level usability.
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| /Linux-v5.10/Documentation/devicetree/bindings/arm/tegra/ |
| D | nvidia,tegra20-pmc.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/arm/tegra/nvidia,tegra20-pmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Tegra Power Management Controller (PMC)
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jonathan Hunter <jonathanh@nvidia.com>
16 - nvidia,tegra20-pmc
17 - nvidia,tegra20-pmc
18 - nvidia,tegra30-pmc
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| /Linux-v5.10/Documentation/w1/slaves/ |
| D | w1_ds28e17.rst | 7 * Maxim DS28E17 1-Wire-to-I2C Master Bridge
19 -----------
30 SUBSYSTEM=="i2c-dev", KERNEL=="i2c-[0-9]*", ATTRS{name}=="w1-19-*", \
31 SYMLINK+="i2c-$attr{name}"
33 may be used to create stable /dev/i2c- entries based on the unique id of the
41 it is connected. The power-on default of the DS28E17 is 400kBaud, but
42 chips may come and go on the Onewire bus without being de-powered and
44 reconnected DS28E17 device on the Onewire bus, it will re-apply this
53 wait time for an I2C transfer. This is to account for I2C slave devices
55 needed timeout cannot be pre-calculated correctly. As the w1_ds28e17
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| /Linux-v5.10/arch/parisc/kernel/ |
| D | firmware.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * arch/parisc/kernel/firmware.c - safe PDC access routines
14 * Copyright 2003 Grant Grundler <grundler parisc-linux org>
15 * Copyright 2003,2004 Ryan Bradetich <rbrad@parisc-linux.org>
16 * Copyright 2004,2006 Thibaut VARENE <varenet@parisc-linux.org>
22 * - the name of the pdc wrapper should match one of the macros
24 * - don't use caps for random parts of the name
25 * - use the static PDC result buffers and "copyout" to structs
27 * - hold pdc_lock while in PDC or using static result buffers
28 * - use __pa() to convert virtual (kernel) pointers to physical
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| /Linux-v5.10/drivers/media/i2c/ |
| D | vs6624_regs.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * vs6624 - ST VS6624 CMOS image sensor registers
12 #define VS6624_MICRO_EN 0xC003 /* power enable for all MCU clock */
101 /* power management */
102 #define VS6624_TIME_TO_POWER_DOWN 0x0580 /* automatically transition time to stop mode */
110 #define VS6624_LIGHT_FREQ 0x0C80 /* AC frequency used for flicker free time */
123 #define VS6624_EXPO_TIME_NUM 0x1184 /* exposure time numerator */
124 #define VS6624_EXPO_TIME_DEN 0x1186 /* exposure time denominator */
125 #define VS6624_EXPO_TIME_MSB 0x1189 /* exposure time for the Manual Mode MSB */
126 #define VS6624_EXPO_TIME_LSB 0x118A /* exposure time for the Manual Mode LSB */
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| /Linux-v5.10/drivers/net/wireless/intel/iwlwifi/fw/api/ |
| D | soc.h | 8 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
9 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
10 * Copyright(c) 2012 - 2014, 2019 - 2020 Intel Corporation
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
31 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
32 * Copyright(c) 2012 - 2014, 2019 - 2020 Intel Corporation
76 * struct iwl_soc_configuration_cmd - Set device stabilization latency
81 * @latency: time for SOC to ensure stable power & XTAL
|
| /Linux-v5.10/Documentation/driver-api/usb/ |
| D | usb.rst | 1 .. _usb-hostside-api:
4 The Linux-USB Host Side API
18 That master/slave asymmetry was designed-in for a number of reasons, one
22 distributed auto-configuration since the pre-designated master node
29 measurement and improved power management introduced.
37 USB Host-Side API Model
40 Host-side drivers for USB devices talk to the "usbcore" APIs. There are
41 two. One is intended for *general-purpose* drivers (exposed through
49 - USB supports four kinds of data transfers (control, bulk, interrupt,
54 - The device description model includes one or more "configurations"
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| /Linux-v5.10/Documentation/virt/kvm/ |
| D | timekeeping.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 Timekeeping Virtualization for X86-Based Architectures
23 time introduces a new set of challenges because it introduces a multiplexed
24 division of time beyond the control of the guest CPU.
32 information relevant to KVM and hardware-based virtualization.
41 2.1. i8254 - PIT
42 ----------------
46 channels which can be programmed to deliver periodic or one-shot interrupts.
53 The PIT uses I/O ports 0x40 - 0x43. Access to the 16-bit counters is done
59 -------------- ----------------
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| /Linux-v5.10/Documentation/process/ |
| D | 6.Followthrough.rst | 23 ----------------------
31 - If you have explained your patch well, reviewers will understand its
35 Many of the changes you may be asked to make - from coding style tweaks
36 to substantial rewrites - come from the understanding that Linux will
39 - Code review is hard work, and it is a relatively thankless occupation;
47 - Similarly, code reviewers are not trying to promote their employers'
57 from happening. When you get review comments on a patch, take the time to
68 agree with the reviewer, take some time to think things over again. It can
75 can help future reviewers avoid the questions which came up the first time
80 responded to the comments you got the time before, you're likely to find
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| D | embargoed-hardware-issues.rst | 7 -----
23 -------
31 Linux kernel security team (:ref:`Documentation/admin-guide/
34 The team can be contacted by email at <hardware-security@kernel.org>. This
43 - PGP: https://www.kernel.org/static/files/hardware-security.asc
44 - S/MIME: https://www.kernel.org/static/files/hardware-security.crt
55 - Linus Torvalds (Linux Foundation Fellow)
56 - Greg Kroah-Hartman (Linux Foundation Fellow)
57 - Thomas Gleixner (Linux Foundation Fellow)
59 Operation of mailing-lists
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| /Linux-v5.10/drivers/gpu/drm/pl111/ |
| D | pl111_display.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * (C) COPYRIGHT 2012-2013 ARM Limited. All rights reserved.
7 * Copyright (c) 2006-2008 Intel Corporation
15 #include <linux/dma-buf.h>
32 irq_stat = readl(priv->regs + CLCD_PL111_MIS); in pl111_irq()
38 drm_crtc_handle_vblank(&priv->pipe.crtc); in pl111_irq()
44 writel(irq_stat, priv->regs + CLCD_PL111_ICR); in pl111_irq()
53 struct drm_device *drm = pipe->crtc.dev; in pl111_mode_valid()
54 struct pl111_drm_dev_private *priv = drm->dev_private; in pl111_mode_valid()
55 u32 cpp = priv->variant->fb_bpp / 8; in pl111_mode_valid()
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|
| /Linux-v5.10/Documentation/driver-api/ |
| D | rfkill.rst | 2 rfkill - RF kill switch support
14 radiate any power.
25 - hard block
26 read-only radio block that cannot be overridden by software
28 - soft block
34 admin-guide/kernel-parameters.rst.
43 * the deprecated rfkill-input module (an input layer handler, being
49 the system know about hardware-disabled states that may be implemented on
56 When the device is hard-blocked (either by a call to rfkill_set_hw_state()
77 core with the current state at resume time.
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|
| /Linux-v5.10/Documentation/devicetree/bindings/mmc/ |
| D | mmc-controller.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mmc/mmc-controller.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ulf Hansson <ulf.hansson@linaro.org>
25 "#address-cells":
30 "#size-cells":
37 broken-cd:
42 cd-gpios:
46 non-removable:
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|
| /Linux-v5.10/include/linux/input/ |
| D | adxl34x.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
58 * is an unsigned time value representing the maximum
59 * time that an event must be above the tap_threshold threshold
68 * is an unsigned time value representing the wait time
69 * from the detection of a tap event to the opening of the time
79 * is an unsigned time value representing the amount
80 * of time after the expiration of tap_latency during which a second
145 * is an unsigned time value representing the
146 * amount of time that acceleration must be below the value in
152 * result in the function appearing un-responsive if the
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|
| /Linux-v5.10/drivers/rtc/ |
| D | rtc-sirfsoc.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * SiRFSoC Real Time Clock interface for Linux
38 /* This macro is also defined in arch/arm/plat-sirfsoc/cpu.c */
48 /* Overflow for every 8 years extra time */
62 regmap_read(rtcdrv->regmap, rtcdrv->rtc_base + offset, &val); in sirfsoc_rtc_readl()
69 regmap_write(rtcdrv->regmap, rtcdrv->rtc_base + offset, val); in sirfsoc_rtc_writel()
80 spin_lock_irq(&rtcdrv->lock); in sirfsoc_rtc_read_alarm()
89 * 0->0xffffffff in sirfsoc_rtc_read_alarm()
93 rtc_time64_to_tm((rtcdrv->overflow_rtc + 1) in sirfsoc_rtc_read_alarm()
94 << (BITS_PER_LONG - RTC_SHIFT) in sirfsoc_rtc_read_alarm()
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|
| /Linux-v5.10/drivers/memory/samsung/ |
| D | exynos5422-dmc.c | 1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/devfreq-event.h>
100 * struct dmc_opp_table - Operating level desciption
112 * struct exynos5_dmc - main structure describing DMC device
127 * @timing_power: balues for timing power register, for each OPP
132 * @bypass_timing_power: value for timing power register for bypass
143 * @last_overflow_ts: time (in ns) of last overflow of each DREX
145 * @total: total time between devfreq events
195 __val = (t_val) << (timing)->bit_beg; \
219 TIMING_FIELD("tW2W-C2C", 14, 14),
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|
| /Linux-v5.10/lib/ |
| D | list_sort.c | 1 // SPDX-License-Identifier: GPL-2.0
15 * to chaining of merge() calls: null-terminated, no reserved or
25 /* if equal, take 'a' -- important for sort stability */ in merge()
28 tail = &a->next; in merge()
29 a = a->next; in merge()
36 tail = &b->next; in merge()
37 b = b->next; in merge()
48 * Combine final list merge with restoration of standard doubly-linked
51 * prev-link restoration pass, or maintaining the prev links
62 /* if equal, take 'a' -- important for sort stability */ in merge_final()
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|
| /Linux-v5.10/arch/arm64/boot/dts/rockchip/ |
| D | rk3399-gru-scarlet.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Google Gru-scarlet board device tree source
8 #include "rk3399-gru.dtsi"
11 /* Power tree */
14 pp1250_s3: pp1250-s3 {
15 compatible = "regulator-fixed";
16 regulator-name = "pp1250_s3";
19 regulator-always-on;
20 regulator-boot-on;
21 regulator-min-microvolt = <1250000>;
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|
| /Linux-v5.10/drivers/mmc/host/ |
| D | sdhci-of-arasan.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2011 - 2012 Michal Simek <monstr@monstr.eu>
9 * Based on sdhci-of-esdhc.c
18 #include <linux/clk-provider.h>
25 #include <linux/firmware/xlnx-zynqmp.h>
28 #include "sdhci-pltfm.h"
55 * On some SoCs the syscon area has a feature where the upper 16-bits of
56 * each 32-bit register act as a write mask for the lower 16-bits. This allows
64 * struct sdhci_arasan_soc_ctl_field - Field used in sdhci_arasan_soc_ctl_map
68 * @shift: Bit offset within @reg of this field (or -1 if not avail)
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|
| /Linux-v5.10/Documentation/admin-guide/ |
| D | xfs.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 on the SGI IRIX platform. It is completely multi-threaded, can
15 for further details. This implementation is on-disk compatible
25 Sets the buffered I/O end-of-file preallocation size when
28 through to 1GiB, inclusive, in power-of-2 increments.
30 The default behaviour is for dynamic end-of-file
40 on-disk. When the new form is used for the first time when
42 attributes) the on-disk superblock feature bit field will be
45 The default behaviour is determined by the on-disk feature
116 Set the number of in-memory log buffers. Valid numbers
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|
| /Linux-v5.10/Documentation/networking/device_drivers/wifi/intel/ |
| D | ipw2200.rst | 1 .. SPDX-License-Identifier: GPL-2.0
11 - Intel(R) PRO/Wireless 2200BG Network Connection
12 - Intel(R) PRO/Wireless 2915ABG Network Connection
20 Copyright |copy| 2004-2006, Intel Corporation
37 2. Ad-Hoc Networking
65 parameters include, without limitation, RF power, spectrum usage,
78 the warranty and/or issues arising from regulatory non-compliance, and
83 modules, and accordingly, condition system-level regulatory approval
86 non-compliant.
113 -------------------------
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|
| /Linux-v5.10/Documentation/driver-api/pm/ |
| D | devices.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 Device Power Management Basics
10 :Copyright: |copy| 2010-2011 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.
17 Most of the code in Linux is device drivers, so most of the Linux power
18 management (PM) code is also driver-specific. Most drivers will do very
22 This writeup gives an overview of how drivers interact with system-wide
23 power management goals, emphasizing the models and interfaces that are
25 background for the domain-specific work you'd do with any specific driver.
28 Two Models for Device Power Management
31 Drivers will use one or both of these models to put devices into low-power
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|
| /Linux-v5.10/Documentation/userspace-api/ |
| D | unshare.rst | 10 ----------
14 --------
26 -----------
35 power of implementing threads in this manner comes not only from
37 outside the confinement of all-or-nothing shared resources of legacy
38 threads. On Linux, at the time of thread creation using the clone system
44 shared at the time of their creation. unshare() was conceptualized by
45 Al Viro in the August of 2000, on the Linux-Kernel mailing list, as part
53 -----------
59 even non-threaded applications if they have a need to disassociate
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| /Linux-v5.10/arch/x86/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
4 bool "64-bit kernel" if "$(ARCH)" = "x86"
7 Say yes to build a 64-bit kernel - formerly known as x86_64
8 Say no to build a 32-bit kernel - formerly known as i386
13 # Options that are inherently 32-bit kernel only:
25 # Options that are inherently 64-bit kernel only:
49 # ported to 32-bit as well. )
252 default "elf32-i386" if X86_32
253 default "elf64-x86-64" if X86_64
375 default $(success,$(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC)) if 64BIT
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|
