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/openbmc/linux/Documentation/devicetree/bindings/regulator/
H A Drichtek,rtq2208.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alina Yu <alina_yu@richtek.com>
14 multi-configurable synchronous buck converters and two LDOs.
16 Bucks support "regulator-allowed-modes" and "regulator-mode". The former defines the permitted
17 switching operation in normal mode; the latter defines the operation in suspend to RAM mode.
19 No matter the RTQ2208 is configured to normal or suspend to RAM mode, there are two switching
20 operation modes for all buck rails, automatic power saving mode (Auto mode) and forced continuous
25 0 - Auto mode for power saving, which reducing the switching frequency at light load condition
[all …]
H A Drichtek,rt5739.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Richtek RT5739 Step-Down Buck Converter
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RT5739 is a step-down switching buck converter that can deliver the
19 - $ref: regulator.yaml#
24 - richtek,rt5733
25 - richtek,rt5739
30 enable-gpios:
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/openbmc/linux/Documentation/devicetree/bindings/leds/backlight/
H A Dqcom-wled.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/qcom-wled.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bjorn Andersson <bjorn.andersson@linaro.org>
11 - Kiran Gunda <kgunda@codeaurora.org>
21 - qcom,pm8941-wled
22 - qcom,pmi8950-wled
23 - qcom,pmi8994-wled
24 - qcom,pmi8998-wled
[all …]
/openbmc/linux/drivers/soc/rockchip/
H A Dgrf.c1 // SPDX-License-Identifier: GPL-2.0-only
32 * Disable auto jtag/sdmmc switching that causes issues with the
33 * clock-framework and the mmc controllers making them unreliable.
35 { "jtag switching", RK3036_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 11) },
46 { "jtag switching", RK3128_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 8) },
57 { "jtag switching", RK3228_GRF_SOC_CON6, HIWORD_UPDATE(0, 1, 8) },
69 { "jtag switching", RK3288_GRF_SOC_CON0, HIWORD_UPDATE(0, 1, 12) },
81 { "jtag switching", RK3328_GRF_SOC_CON4, HIWORD_UPDATE(0, 1, 12) },
92 { "jtag switching", RK3368_GRF_SOC_CON15, HIWORD_UPDATE(0, 1, 13) },
103 { "jtag switching", RK3399_GRF_SOC_CON7, HIWORD_UPDATE(0, 1, 12) },
[all …]
/openbmc/linux/include/uapi/linux/
H A Dvt.h1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
7 * These constants are also useful for user-level apps (e.g., VC
28 #define VT_AUTO 0x00 /* auto vt switching */
29 #define VT_PROCESS 0x01 /* process controls switching */
62 #define VT_LOCKSWITCH 0x560B /* disallow vt switching */
63 #define VT_UNLOCKSWITCH 0x560C /* allow vt switching */
/openbmc/linux/Documentation/devicetree/bindings/extcon/
H A Dextcon-rt8973a.txt2 * Richtek RT8973A - Micro USB Switch device
7 speed USB operation. Also, RT8973A support 'auto-configuration' mode.
8 If auto-configuration mode is enabled, RT8973A would control internal h/w patch
9 for USB D-/D+ switching.
12 - compatible: Should be "richtek,rt8973a-muic"
13 - reg: Specifies the I2C slave address of the MUIC block. It should be 0x14
14 - interrupts: Interrupt specifiers for detection interrupt sources.
19 compatible = "richtek,rt8973a-muic";
20 interrupt-parent = <&gpx1>;
/openbmc/linux/arch/arc/include/asm/
H A Dentry-compact.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2014-15 Synopsys, Inc. (www.synopsys.com)
4 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
7 * Stack switching code can no longer reliably rely on the fact that
10 * it's prologue including stack switching from user mode
13 * -Zero Overhead Loop Context shd be cleared when entering IRQ/EXcp/Trap
20 * -Modified CALLEE_REG save/restore macros to handle the fact that
22 * - Defined Stack Switching Macro to be reused in all intr/excp hdlrs
23 * - Shaved off 11 instructions from RESTORE_ALL_INT1 by using the
32 #include <asm/asm-offsets.h>
[all …]
/openbmc/linux/Documentation/fb/
H A Dlxfb.rst17 * Most important: boot logo :-)
27 Switching modes is done using lxfb.mode_option=<resolution>... boot
37 XF68_FBDev should generally work fine, but it is non-accelerated.
49 <x>x<y>[-<bpp>][@<refresh>]
50 vram size of video ram (normally auto-detected)
51 vt_switch enable vt switching during suspend/resume. The vt
H A Dgxfb.rst16 * Most important: boot logo :-)
26 Switching modes is done using gxfb.mode_option=<resolution>... boot
36 XF68_FBDev should generally work fine, but it is non-accelerated.
48 <x>x<y>[-<bpp>][@<refresh>]
49 vram size of video ram (normally auto-detected)
50 vt_switch enable vt switching during suspend/resume. The vt
/openbmc/linux/Documentation/devicetree/bindings/usb/
H A Dusb251xb.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Microchip USB 2.0 Hi-Speed Hub Controller
10 - Richard Leitner <richard.leitner@skidata.com>
15 - microchip,usb2422
16 - microchip,usb2512b
17 - microchip,usb2512bi
18 - microchip,usb2513b
19 - microchip,usb2513bi
[all …]
/openbmc/linux/Documentation/admin-guide/hw-vuln/
H A Dspectre.rst1 .. SPDX-License-Identifier: GPL-2.0
14 -------------------
22 - Intel Core, Atom, Pentium, and Xeon processors
24 - AMD Phenom, EPYC, and Zen processors
26 - IBM POWER and zSeries processors
28 - Higher end ARM processors
30 - Apple CPUs
32 - Higher end MIPS CPUs
34 - Likely most other high performance CPUs. Contact your CPU vendor for details.
40 ------------
[all …]
/openbmc/linux/drivers/usb/host/
H A Duhci-hub.c1 // SPDX-License-Identifier: GPL-2.0
8 * (C) Copyright 1999-2002 Johannes Erdfelt, johannes@erdfelt.com
19 USB_DT_HUB, /* __u8 bDescriptorType; Hub-descriptor */
22 HUB_CHAR_INDV_PORT_OCPM, /* (per-port OC, no power switching) */
41 /* A port that either is connected or has a changed-bit set will prevent
48 for (port = 0; port < uhci->rh_numports; ++port) { in any_ports_active()
51 test_bit(port, &uhci->port_c_suspend)) in any_ports_active()
72 for (port = 0; port < uhci->rh_numports; ++port) { in get_hub_status_data()
74 test_bit(port, &uhci->port_c_suspend)) in get_hub_status_data()
104 if (test_bit(port, &uhci->resuming_ports)) in uhci_finish_suspend()
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/openbmc/u-boot/doc/
H A DREADME.kconfig1 Kconfig in U-Boot
4 This document describes the configuration infrastructure of U-Boot.
6 The conventional configuration was replaced by Kconfig at v2014.10-rc1 release.
10 ----------------------
18 -------------------------------
20 Here are some worth-mentioning configuration targets.
22 - silentoldconfig
25 include/configs/* as in Linux. In U-Boot, it also does the following
39 - defconfig
41 In U-Boot, "make defconfig" is a shorthand of "make sandbox_defconfig"
[all …]
/openbmc/u-boot/board/toradex/colibri_imx6/
H A Dpf0100.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2014-2016, Toradex AG
13 /* 7-bit I2C bus slave address */
32 /* Always ON, Auto Switching Mode, 5.0V */
/openbmc/u-boot/board/toradex/apalis_imx6/
H A Dpf0100.h1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * Copyright (C) 2014-2016, Toradex AG
13 /* 7-bit I2C bus slave address */
32 /* Always ON, Auto Switching Mode, 5.0V */
/openbmc/qemu/tests/qemu-iotests/
H A D1872 # group: rw auto
4 # Test switching between read-only and read-write
49 echo "Start from read-only"
52 $QEMU_IO -r -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
53 $QEMU_IO -r -c 'reopen -w' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
54 $QEMU_IO -r -c 'reopen -w' -c 'reopen -r' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
57 echo "Start from read-write"
60 $QEMU_IO -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
61 $QEMU_IO -c 'reopen -r' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
62 $QEMU_IO -c 'reopen -r' -c 'reopen -w' -c 'write 0 64k' $TEST_IMG | _filter_qemu_io
[all …]
/openbmc/linux/arch/x86/kernel/cpu/
H A Dbugs.c1 // SPDX-License-Identifier: GPL-2.0
6 * - Rafael R. Reilova (moved everything from head.S),
8 * - Channing Corn (tests & fixes),
9 * - Andrew D. Balsa (code cleanup).
20 #include <asm/spec-ctrl.h>
24 #include <asm/processor-flags.h>
29 #include <asm/intel-family.h>
54 /* The base value of the SPEC_CTRL MSR without task-specific bits set */
58 /* The current value of the SPEC_CTRL MSR with task-specific bits set */
98 * When KERNEL_IBRS this MSR is written on return-to-user, unless in update_spec_ctrl_cond()
[all …]
/openbmc/linux/Documentation/hwmon/
H A Dmax20730.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
12 Addresses scanned: -
20 Addresses scanned: -
28 Addresses scanned: -
36 Addresses scanned: -
40 Author: Guenter Roeck <linux@roeck-us.net>
44 -----------
47 Integrated, Step-Down Switching Regulators with PMBus support.
54 -----------
56 This driver does not auto-detect devices. You will have to instantiate the
[all …]
H A Df71882fg.rst103 This is the 64-pin variant of the F71889FG, they have the
119 -----------
133 ----------
136 interface as documented in sysfs-interface, without any exceptions.
140 -----------
142 Both PWM (pulse-width modulation) and DC fan speed control methods are
149 vica versa. So the temperature zone trip points 1-4 (or 1-2) go from high temp
154 voltage) mode, where 0-100% duty cycle (0-100% of 12V) is specified. And RPM
156 gets specified as 0-100% of the fan#_full_speed file.
158 Since both modes work in a 0-100% (mapped to 0-255) scale, there isn't a
[all …]
/openbmc/linux/drivers/net/wireless/ralink/rt2x00/
H A Drt2400pci.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
25 * Default offset is required for RSSI <-> dBm conversion.
153 * CSR11: Back-off control register.
154 * CWMIN: CWmin. Default cwmin is 31 (2^5 - 1).
155 * CWMAX: CWmax. Default cwmax is 1023 (2^10 - 1).
189 * TSF_COUNT: Enable tsf auto counting.
190 * TSF_SYNC: Tsf sync, 0: disable, 1: infra, 2: ad-hoc/master mode.
192 * TCFP: Enable tcfp & cfp / cp switching.
193 * TATIMW: Enable tatimw & atim window switching.
[all …]
/openbmc/linux/sound/pci/hda/
H A Dhda_generic.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Generic BIOS auto-parser helper functions for HD-audio
16 /* table entry for multi-io paths */
18 hda_nid_t pin; /* multi-io widget pin NID */
20 unsigned int ctl_in; /* cached input-pin control value */
25 * For output, stored in the order of DAC -> ... -> pin,
26 * for input, pin -> ... -> ADC.
30 * multi[] indicates whether it's a selector widget with multi-connectors
56 /* mic/line-in auto switching entry */
62 int idx; /* imux index, -1 = invalid */
[all …]
/openbmc/linux/Documentation/devicetree/bindings/net/
H A Dti,k3-am654-cpsw-nuss.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/ti,k3-am654-cpsw-nuss.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Grygorii Strashko <grygorii.strashko@ti.com>
11 - Sekhar Nori <nsekhar@ti.com>
17 (two external) and provides Ethernet packet communication and switching.
22 Complex (UDMA-P) controller.
35 VLAN support, 802.1Q compliant, Auto add port VLAN for untagged frames on
36 ingress, Auto VLAN removal on egress and auto pad to minimum frame size.
[all …]
/openbmc/u-boot/arch/arm/cpu/arm926ejs/mxs/
H A Dspl_power_init.c1 // SPDX-License-Identifier: GPL-2.0+
12 #include <asm/arch/imx-regs.h>
24 * mxs_power_clock2xtal() - Switch CPU core clock source to 24MHz XTAL
35 debug("SPL: Switching CPU clock to 24MHz XTAL\n"); in mxs_power_clock2xtal()
39 &clkctrl_regs->hw_clkctrl_clkseq_set); in mxs_power_clock2xtal()
43 * mxs_power_clock2pll() - Switch CPU core clock source to PLL
46 * to PLL. This can only be called once the PLL has re-locked and once
54 debug("SPL: Switching CPU core clock source to PLL\n"); in mxs_power_clock2pll()
63 setbits_le32(&clkctrl_regs->hw_clkctrl_pll0ctrl0, in mxs_power_clock2pll()
71 setbits_le32(&clkctrl_regs->hw_clkctrl_clkseq, in mxs_power_clock2pll()
[all …]
/openbmc/linux/Documentation/sound/hd-audio/
H A Dnotes.rst2 More Notes on HD-Audio Driver
11 HD-audio is the new standard on-board audio component on modern PCs
12 after AC97. Although Linux has been supporting HD-audio since long
15 This document explains the brief trouble-shooting and debugging
16 methods for the HD-audio hardware.
18 The HD-audio component consists of two parts: the controller chip and
19 the codec chips on the HD-audio bus. Linux provides a single driver
20 for all controllers, snd-hda-intel. Although the driver name contains
21 a word of a well-known hardware vendor, it's not specific to it but for
22 all controller chips by other companies. Since the HD-audio
[all …]
/openbmc/linux/Documentation/driver-api/driver-model/
H A Doverview.rst16 bus-specific drivers for bridges and devices by consolidating a set of data
19 Traditional driver models implemented some sort of tree-like structure
33 on an x86-compatible system can work within this paradigm. Of course,
43 and sometimes by the device-specific drivers.
60 they're doing when switching between the bus driver and the global driver,
93 The auto-mounting of sysfs is typically accomplished by an entry similar to
98 or something similar in the /lib/init/fstab file on Debian-based systems::
104 # mount -t sysfs sysfs /sys
107 This directory may be populated at each layer of discovery - the global layer,
110 The global layer currently creates two files - 'name' and 'power'. The
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