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/Linux-v5.15/drivers/iio/light/
Dveml6070.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * veml6070.c - Support for Vishay VEML6070 UV A light sensor
5 * Copyright 2016 Peter Meerwald-Stadler <pmeerw@pmeerw.net>
7 * IIO driver for VEML6070 (7-bit I2C slave addresses 0x38 and 0x39)
29 #define VEML6070_COMMAND_SD BIT(0) /* shutdown mode when set */
45 mutex_lock(&data->lock); in veml6070_read()
47 /* disable shutdown */ in veml6070_read()
48 ret = i2c_smbus_write_byte(data->client1, in veml6070_read()
49 data->config & ~VEML6070_COMMAND_SD); in veml6070_read()
55 ret = i2c_smbus_read_byte(data->client2); /* read MSB, address 0x39 */ in veml6070_read()
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/Linux-v5.15/Documentation/devicetree/bindings/regulator/
Drichtek,rtq2134-regulator.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/regulator/richtek,rtq2134-regulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RTQ2134 is a multi-phase, programmable power management IC that
14 integrates with four high efficient, synchronous step-down converter cores.
17 https://www.richtek.com/assets/product_file/RTQ2134-QA/DSQ2134-QA-01.pdf
22 - richtek,rtq2134
31 "^buck[1-3]$":
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Dregulator.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Liam Girdwood <lgirdwood@gmail.com>
11 - Mark Brown <broonie@kernel.org>
14 regulator-name:
18 regulator-min-microvolt:
21 regulator-max-microvolt:
24 regulator-microvolt-offset:
27 regulator-min-microamp:
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/Linux-v5.15/arch/x86/platform/uv/
Duv_time.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright (c) 2009-2013 Silicon Graphics, Inc. All Rights Reserved.
12 #include <asm/uv/uv_mmrs.h>
13 #include <asm/uv/uv_hub.h>
14 #include <asm/uv/bios.h>
15 #include <asm/uv/uv.h>
38 .irq = -1,
92 /* Setup interrupt and return non-zero if early expiration occurred. */
101 uv_write_global_mmr64(pnode, UVH_INT_CMPB, -1L); in uv_setup_intr()
121 * Per-cpu timer tracking routines
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/Linux-v5.15/arch/ia64/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
67 The Itanium Processor Family is Intel's 64-bit successor to
68 the 32-bit X86 line. The IA-64 Linux project has a home
70 <linux-ia64@vger.kernel.org>.
127 Select your IA-64 processor type. The default is Itanium.
128 This choice is safe for all IA-64 systems, but may not perform
145 This lets you select the page size of the kernel. For best IA-64
147 IA-32 compatibility, a page size of 4KB should be selected (the vast
148 majority of IA-32 binaries work perfectly fine with a larger page
152 4KB For best IA-32 compatibility
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/Linux-v5.15/drivers/regulator/
Drtq2134-regulator.c1 // SPDX-License-Identifier: GPL-2.0+
80 (struct rtq2134_regulator_desc *)rdev->desc; in rtq2134_buck_set_mode()
88 return -EINVAL; in rtq2134_buck_set_mode()
90 val <<= ffs(desc->mode_mask) - 1; in rtq2134_buck_set_mode()
91 return regmap_update_bits(rdev->regmap, desc->mode_reg, desc->mode_mask, in rtq2134_buck_set_mode()
98 (struct rtq2134_regulator_desc *)rdev->desc; in rtq2134_buck_get_mode()
102 ret = regmap_read(rdev->regmap, desc->mode_reg, &mode); in rtq2134_buck_get_mode()
106 if (mode & desc->mode_mask) in rtq2134_buck_get_mode()
111 static int rtq2134_buck_set_suspend_voltage(struct regulator_dev *rdev, int uV) in rtq2134_buck_set_suspend_voltage() argument
114 (struct rtq2134_regulator_desc *)rdev->desc; in rtq2134_buck_set_suspend_voltage()
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Dvctrl-regulator.c1 // SPDX-License-Identifier: GPL-2.0-only
50 struct vctrl_voltage_range *ctrl = &vctrl->vrange.ctrl; in vctrl_calc_ctrl_voltage()
51 struct vctrl_voltage_range *out = &vctrl->vrange.out; in vctrl_calc_ctrl_voltage()
53 return ctrl->min_uV + in vctrl_calc_ctrl_voltage()
54 DIV_ROUND_CLOSEST_ULL((s64)(out_uV - out->min_uV) * in vctrl_calc_ctrl_voltage()
55 (ctrl->max_uV - ctrl->min_uV), in vctrl_calc_ctrl_voltage()
56 out->max_uV - out->min_uV); in vctrl_calc_ctrl_voltage()
61 struct vctrl_voltage_range *ctrl = &vctrl->vrange.ctrl; in vctrl_calc_output_voltage()
62 struct vctrl_voltage_range *out = &vctrl->vrange.out; in vctrl_calc_output_voltage()
69 if (ctrl_uV < ctrl->min_uV) in vctrl_calc_output_voltage()
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Dbd718x7-regulator.c1 // SPDX-License-Identifier: GPL-2.0
3 // bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver
9 #include <linux/mfd/rohm-bd718x7.h>
50 * controlled by software - or by PMIC internal HW state machine. Whether
51 * regulator should be under SW or HW control can be defined from device-tree.
102 * Note for next hacker - these PMICs have a register where the HW state can be
103 * read. If assuming RUN appears to be false in your use-case - you can
122 ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val); in bd71837_get_buck34_enable_hwctrl()
132 * is changed. Hence we return -EBUSY for these if voltage is changed
136 * enabled. But if voltage is increased the LDO power-good monitoring
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/Linux-v5.15/include/linux/mfd/samsung/
Dcore.h1 /* SPDX-License-Identifier: GPL-2.0+ */
27 /* Ramp delay in uV/us */
51 * struct sec_pmic_dev - s2m/s5m master device for sub-drivers
102 /* Whether or not manually set PWRHOLD to low during shutdown. */
109 * sec_regulator_data - regulator data
121 * sec_opmode_data - regulator operation mode data
134 * SEC_OPMODE_LOWPOWER Regulator is on in low-power mode
/Linux-v5.15/drivers/char/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
27 int "ttyprintk log level (1-7)"
40 Also read the Printing-HOWTO, available from
48 <file:Documentation/admin-guide/parport.rst>. The module will be called lp.
77 tristate "Support for user-space parallel port device drivers"
82 port, for instance deviceid (which displays Plug-and-Play device
86 It is safe to say N to this -- it is not needed for normal printing
87 or parallel port CD-ROM/disk support.
102 Also serves as a general-purpose serial device for data
131 If unsure, say M here to build it as a module called powernv-op-panel.
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/Linux-v5.15/drivers/mfd/
Dwm831x-core.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * wm831x-core.c -- Device access for Wolfson WM831x PMICs
29 /* Current settings - values are 2*2^(reg_val/4) microamps. These are
94 if (!wm831x->locked) in wm831x_reg_locked()
126 dev_vdbg(wm831x->dev, "Registers locked\n"); in wm831x_reg_lock()
128 mutex_lock(&wm831x->io_lock); in wm831x_reg_lock()
129 WARN_ON(wm831x->locked); in wm831x_reg_lock()
130 wm831x->locked = 1; in wm831x_reg_lock()
131 mutex_unlock(&wm831x->io_lock); in wm831x_reg_lock()
133 dev_err(wm831x->dev, "Failed to lock registers: %d\n", ret); in wm831x_reg_lock()
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/Linux-v5.15/drivers/power/supply/
Dsmb347-charger.c1 // SPDX-License-Identifier: GPL-2.0-only
23 #include <dt-bindings/power/summit,smb347-charger.h>
26 #define SMB3XX_SOFT_TEMP_COMPENSATE_DEFAULT -1
29 #define SMB3XX_TEMP_USE_DEFAULT -273
34 * reloaded from non-volatile registers after POR.
136 * struct smb347_charger - smb347 charger instance
148 * @max_charge_voltage: maximum voltage (in uV) the battery can be charged
149 * @pre_charge_current: current (in uA) to use in pre-charging phase
152 * @pre_to_fast_voltage: voltage (in uV) treshold used for transitioning to
153 * pre-charge to fast charge mode
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Drt9455_charger.c1 // SPDX-License-Identifier: GPL-2.0-or-later
22 #define RT9455_DRIVER_NAME "rt9455-charger"
166 #define GET_MASK(fid) (BIT(rt9455_reg_fields[fid].msb + 1) - \
170 * Each array initialised below shows the possible real-world values for a
172 * ascending order. The index of each real-world value represents the value
184 /* REG02[7:2] (VOREG) in uV */
200 /* REG02[7:2] (Boost output voltage) in uV */
212 /* REG07[3:0] (VMREG) in uV */
223 /* REG05[1:0] (MIVR) in uV */
264 for (i = 0; i < tbl_size - 1; i++) in rt9455_find_idx()
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Dbq24190_charger.c1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <linux/extcon-provider.h>
32 #define BQ24190_REG_POC 0x01 /* Power-On Configuration */
56 #define BQ24190_REG_PCTCC 0x03 /* Pre-charge/Termination Current Cntl */
180 * The tables below provide a 2-way mapping for the value that goes in
181 * the register field and the real-world value that it represents.
183 * number at that index in the array is the real-world value that it
204 /* REG04[7:2] (VREG) in uV */
223 * 'val'. The index range returned is 0 to 'tbl_size' - 1. Assumes that
235 return i - 1; in bq24190_find_idx()
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/Linux-v5.15/arch/arm/boot/dts/
Dam335x-shc.dts1 // SPDX-License-Identifier: GPL-2.0
8 /dts-v1/;
11 #include <dt-bindings/input/input.h>
15 compatible = "ti,am335x-shc", "ti,am335x-bone", "ti,am33xx";
29 operating-points = <
30 /* kHz uV */
34 voltage-tolerance = <2>; /* 2 percentage */
35 cpu0-supply = <&dcdc2_reg>;
40 compatible = "gpio-keys";
46 debounce-interval = <1000>;
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Dexynos3250-rinato.dts1 // SPDX-License-Identifier: GPL-2.0
12 /dts-v1/;
14 #include "exynos4412-ppmu-common.dtsi"
15 #include <dt-bindings/input/input.h>
16 #include <dt-bindings/gpio/gpio.h>
17 #include <dt-bindings/clock/samsung,s2mps11.h>
28 stdout-path = &serial_1;
37 compatible = "samsung,secure-firmware";
41 gpio-keys {
42 compatible = "gpio-keys";
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Dexynos4412-midas.dtsi1 // SPDX-License-Identifier: GPL-2.0
12 /dts-v1/;
14 #include "exynos4412-ppmu-common.dtsi"
15 #include <dt-bindings/gpio/gpio.h>
16 #include <dt-bindings/input/input.h>
17 #include <dt-bindings/interrupt-controller/irq.h>
18 #include <dt-bindings/clock/maxim,max77686.h>
19 #include <dt-bindings/pinctrl/samsung.h>
30 stdout-path = &serial_2;
34 compatible = "samsung,secure-firmware";
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Dimx6qdl-zii-rdu2.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 * Copyright (C) 2016-2017 Zodiac Inflight Innovations
6 #include <dt-bindings/gpio/gpio.h>
7 #include <dt-bindings/sound/fsl-imx-audmux.h>
11 stdout-path = &uart1;
15 mdio-gpio0 = &mdio1;
20 compatible = "virtual,mdio-gpio";
21 #address-cells = <1>;
22 #size-cells = <0>;
23 pinctrl-names = "default";
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/Linux-v5.15/arch/arm64/boot/dts/exynos/
Dexynos5433-tm2-common.dtsi1 // SPDX-License-Identifier: GPL-2.0
11 /dts-v1/;
13 #include <dt-bindings/clock/samsung,s2mps11.h>
14 #include <dt-bindings/gpio/gpio.h>
15 #include <dt-bindings/input/input.h>
16 #include <dt-bindings/interrupt-controller/irq.h>
17 #include <dt-bindings/sound/samsung-i2s.h>
48 stdout-path = &serial_1;
56 gpio-keys {
57 compatible = "gpio-keys";
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/Linux-v5.15/Documentation/networking/
Dpacket_mmap.rst1 .. SPDX-License-Identifier: GPL-2.0
22 - Ulisses Alonso Camaró <uaca@i.hate.spam.alumni.uv.es>
23 - Johann Baudy
67 [setup] socket() -------> creation of the capture socket
68 setsockopt() ---> allocation of the circular buffer (ring)
70 mmap() ---------> mapping of the allocated buffer to the
73 [capture] poll() ---------> to wait for incoming packets
75 [shutdown] close() --------> destruction of the capture socket and
88 supported and a link level pseudo-header is provided
107 [setup] socket() -------> creation of the transmission socket
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/Linux-v5.15/drivers/gpu/drm/tegra/
Ddc.c1 // SPDX-License-Identifier: GPL-2.0-only
37 stats->frames = 0; in tegra_dc_stats_reset()
38 stats->vblank = 0; in tegra_dc_stats_reset()
39 stats->underflow = 0; in tegra_dc_stats_reset()
40 stats->overflow = 0; in tegra_dc_stats_reset()
59 offset = 0x000 + (offset - 0x500); in tegra_plane_offset()
60 return plane->offset + offset; in tegra_plane_offset()
64 offset = 0x180 + (offset - 0x700); in tegra_plane_offset()
65 return plane->offset + offset; in tegra_plane_offset()
69 offset = 0x1c0 + (offset - 0x800); in tegra_plane_offset()
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/Linux-v5.15/Documentation/admin-guide/
Dkernel-parameters.txt5 force -- enable ACPI if default was off
6 on -- enable ACPI but allow fallback to DT [arm64]
7 off -- disable ACPI if default was on
8 noirq -- do not use ACPI for IRQ routing
9 strict -- Be less tolerant of platforms that are not
11 rsdt -- prefer RSDT over (default) XSDT
12 copy_dsdt -- copy DSDT to memory
26 If set to vendor, prefer vendor-specific driver
58 Documentation/firmware-guide/acpi/debug.rst for more information about
116 Format: <byte> or <bitmap-list>
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/Linux-v5.15/drivers/media/pci/bt8xx/
Dbttv-driver.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 bttv - Bt848 frame grabber driver
6 Copyright (C) 1996,97,98 Ralph Metzler <rjkm@thp.uni-koeln.de>
7 & Marcus Metzler <mocm@thp.uni-koeln.de>
8 (c) 1999-2002 Gerd Knorr <kraxel@bytesex.org>
14 (c) 2005-2006 Nickolay V. Shmyrev <nshmyrev@yandex.ru>
38 #include <media/v4l2-common.h>
39 #include <media/v4l2-ioctl.h>
40 #include <media/v4l2-event.h>
42 #include <media/drv-intf/msp3400.h>
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/Linux-v5.15/net/ceph/
Dosd_client.c1 // SPDX-License-Identifier: GPL-2.0
71 WARN_ON(!rwsem_is_locked(&osdc->lock)); in verify_osdc_locked()
75 WARN_ON(!rwsem_is_wrlocked(&osdc->lock)); in verify_osdc_wrlocked()
79 struct ceph_osd_client *osdc = osd->o_osdc; in verify_osd_locked()
81 WARN_ON(!(mutex_is_locked(&osd->lock) && in verify_osd_locked()
82 rwsem_is_locked(&osdc->lock)) && in verify_osd_locked()
83 !rwsem_is_wrlocked(&osdc->lock)); in verify_osd_locked()
87 WARN_ON(!mutex_is_locked(&lreq->lock)); in verify_lreq_locked()
116 orig_len - *plen, off, *plen); in calc_layout()
126 osd_data->type = CEPH_OSD_DATA_TYPE_NONE; in ceph_osd_data_init()
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/Linux-v5.15/
DMAINTAINERS9 -------------------------
30 ``diff -u`` to make the patch easy to merge. Be prepared to get your
40 See Documentation/process/coding-style.rst for guidance here.
46 See Documentation/process/submitting-patches.rst for details.
57 include a Signed-off-by: line. The current version of this
59 Documentation/process/submitting-patches.rst.
70 that the bug would present a short-term risk to other users if it
76 Documentation/admin-guide/security-bugs.rst for details.
81 ---------------------------------------------------
97 W: *Web-page* with status/info
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