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/linux/Documentation/devicetree/bindings/leds/
H A Dleds-pwm-multicolor.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-pwm-multicolor.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Multi-color LEDs connected to PWM
10 - Sven Schwermer <sven.schwermer@disruptive-technologies.com>
13 This driver combines several monochrome PWM LEDs into one multi-color
18 const: pwm-leds-multicolor
20 multi-led:
22 $ref: leds-class-multicolor.yaml#
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H A Dleds-class-multicolor.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-class-multicolor.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Davis <afd@ti.com>
13 Bindings for multi color LEDs show how to describe current outputs of
14 either integrated multi-color LED elements (like RGB, RGBW, RGBWA-UV
15 etc.) or standalone LEDs, to achieve logically grouped multi-color LED
16 modules. This is achieved by adding multi-led nodes layer to the
24 pattern: "^multi-led(@[0-9a-f])?$"
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H A Donnn,ncp5623.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ON Semiconductor NCP5623 multi-LED Driver
10 - Abdel Alkuor <alkuor@gmail.com>
14 https://www.onsemi.com/pdf/datasheet/ncp5623-d.pdf
19 - onnn,ncp5623
24 multi-led:
26 $ref: leds-class-multicolor.yaml#
30 "#address-cells":
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H A Dleds-lp50xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lp50xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Andrew Davis <afd@ti.com>
13 The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into
27 - ti,lp5009
28 - ti,lp5012
29 - ti,lp5018
30 - ti,lp5024
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H A Dleds-group-multicolor.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-group-multicolor.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Multi-color LED built with monochromatic LEDs
10 - Jean-Jacques Hiblot <jjhiblot@traphandler.com>
13 This driver combines several monochromatic LEDs into one multi-color
18 const: leds-group-multicolor
23 $ref: /schemas/types.yaml#/definitions/phandle-array
26 - leds
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H A Dkinetic,ktd202x.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - André Apitzsch <git@apitzsch.eu>
16 https://www.kinet-ic.com/uploads/KTD2026-7-04h.pdf
21 - kinetic,ktd2026
22 - kinetic,ktd2027
27 vin-supply:
30 vio-supply:
31 description: Regulator providing power for pull-up of the I/O lines.
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H A Dleds-mt6360.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-mt6360.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Gene Chen <gene_chen@richtek.com>
15 Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
16 and 4-channel RGB LED support Register/Flash/Breath Mode
20 const: mediatek,mt6360-led
22 "#address-cells":
25 "#size-cells":
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H A Dcznic,turris-omnia-leds.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/cznic,turris-omnia-leds.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Marek Behún <kabel@kernel.org>
20 const: cznic,turris-omnia-leds
26 "#address-cells":
29 "#size-cells":
33 "^multi-led@[0-9a-b]$":
35 $ref: leds-class-multicolor.yaml#
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H A Dleds-lp55xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lp55xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 Bindings for the TI/National Semiconductor LP55xx and LP8501 multi channel
27 - national,lp5521
28 - national,lp5523
29 - ti,lp55231
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H A Dmediatek,mt6370-indicator.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/mediatek,mt6370-indicator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alice Chen <alice_chen@richtek.com>
14 Add MT6370 LED driver include 4-channel RGB LED support Register/PWM/Breath Mode
18 const: mediatek,mt6370-indicator
20 "#address-cells":
23 "#size-cells":
27 "^multi-led@[0-3]$":
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/linux/arch/arm/boot/dts/ti/omap/
H A Domap3-echo.dts1 // SPDX-License-Identifier: GPL-2.0-only
5 /dts-v1/;
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/leds/common.h>
14 compatible = "amazon,omap3-echo", "ti,omap3630", "ti,omap3";
18 cpu0-supply = <&vdd1_reg>;
28 compatible = "regulator-fixed";
29 regulator-name = "vcc5v";
30 regulator-min-microvolt = <5000000>;
31 regulator-max-microvolt = <5000000>;
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/linux/drivers/leds/rgb/
H A Dleds-pwm-multicolor.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * PWM-based multi-color LED control
5 * Copyright 2022 Sven Schwermer <sven.schwermer@disruptive-technologies.com>
10 #include <linux/led-class-multicolor.h>
42 mutex_lock(&priv->lock); in led_pwm_mc_set()
44 for (i = 0; i < mc_cdev->num_colors; i++) { in led_pwm_mc_set()
45 duty = priv->leds[i].state.period; in led_pwm_mc_set()
46 duty *= mc_cdev->subled_info[i].brightness; in led_pwm_mc_set()
47 do_div(duty, cdev->max_brightness); in led_pwm_mc_set()
49 if (priv->leds[i].active_low) in led_pwm_mc_set()
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
6 tristate "LEDs group multi-color support"
11 different colors are physically grouped in a single multi-color LED
12 and driven by a controller that doesn't have multi-color support.
15 will be called leds-group-multicolor.
27 will be called leds-ktd202x.
38 will be called leds-ncp5623.
41 tristate "PWM driven multi-color LED Support"
48 will be called leds-pwm-multicolor.
63 If compiled as a module, the module will be named leds-qcom-lpg.
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/linux/arch/arm/boot/dts/marvell/
H A Darmada-385-turris-omnia.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
5 * Copyright (C) 2016 Uwe Kleine-König <uwe@kleine-koenig.org>
8 * Schematic available at https://www.turris.cz/doc/_media/rtrom01-schema.pdf
11 /dts-v1/;
13 #include <dt-bindings/gpio/gpio.h>
14 #include <dt-bindings/input/input.h>
15 #include <dt-bindings/leds/common.h>
16 #include "armada-385.dtsi"
20 compatible = "cznic,turris-omnia", "marvell,armada385", "marvell,armada380";
23 stdout-path = &uart0;
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/linux/drivers/staging/media/atomisp/pci/isp/kernels/macc/macc1_5/
H A Dia_css_macc1_5_types.h1 /* SPDX-License-Identifier: GPL-2.0 */
20 * CSS-API header file for Multi-Axis Color Conversion algorithm parameters.
23 /* Multi-Axis Color Conversion configuration
33 /* Multi-Axes Color Correction (MACC) table.
49 * OutU = (data00 * InU + data01 * InV) >> (13 - exp)
50 * OutV = (data10 * InU + data11 * InV) >> (13 - exp)
53 * OutU = (4096 * InU + 0 * InV) >> (13 - 1)
54 * OutV = ( 0 * InU + 4096 * InV) >> (13 - 1)
59 MACC1_5: s[macc_config.exp].[13-macc_config.exp], [-8192,8191]
64 /* Multi-Axes Color Correction (MACC) configuration.
/linux/Documentation/devicetree/bindings/display/panel/
H A Dpanel-simple.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/display/panel/panel-simple.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Sam Ravnborg <sam@ravnborg.org>
15 requires only a single power-supply.
23 - $ref: panel-common.yaml#
24 - $ref: ../lvds-data-mapping.yaml#
32 # Ampire AM-1280800N3TZQW-T00H 10.1" WQVGA TFT LCD panel
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/linux/arch/powerpc/boot/dts/
H A Dturris1x.dts1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright 2013 - 2022 CZ.NIC z.s.p.o. (http://www.nic.cz/)
8 * and available at: https://docs.turris.cz/hw/turris-1x/turris-1x/
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/leds/common.h>
14 /include/ "fsl/p2020si-pre.dtsi"
41 gpio-controller@18 {
45 #gpio-cells = <2>;
46 gpio-controller;
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/linux/Documentation/gpu/amdgpu/display/
H A Dmpo-overview.rst6 'Documentation/gpu/amdgpu/display/dcn-overview.rst'.
10 fixed-function hardware in the display controller rather than using graphics or
12 the graphics/compute pipelines can be put into low-power states. In summary,
15 * Decreased GPU and CPU workload - no composition shaders needed, no extra
17 * Plane independent page flips - No need to be tied to global compositor
18 page-flip present rate, reduced latency, independent timing.
20 .. note:: Keep in mind that MPO is all about power-saving; if you want to learn
21 more about power-save in the display context, check the link:
22 `Power <https://gitlab.freedesktop.org/pq/color-and-hdr/-/blob/main/doc/power.rst>`__.
26 (modesetting, page-flipping, etc) - drmModeAtomicCommit. To query hardware
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/linux/drivers/staging/media/atomisp/pci/isp/kernels/macc/macc_1.0/
H A Dia_css_macc_types.h1 /* SPDX-License-Identifier: GPL-2.0 */
20 * CSS-API header file for Multi-Axis Color Correction (MACC) parameters.
29 /* Multi-Axis Color Correction (MACC) table.
45 * OutU = (data00 * InU + data01 * InV) >> (13 - exp)
46 * OutV = (data10 * InU + data11 * InV) >> (13 - exp)
49 * OutU = (4096 * InU + 0 * InV) >> (13 - 1)
50 * OutV = ( 0 * InU + 4096 * InV) >> (13 - 1)
56 MACC1: s2.13, [-65536,65535]
59 MACC2: s[macc_config.exp].[13-macc_config.exp], [-8192,8191]
H A Dia_css_macc_table.host.c1 // SPDX-License-Identifier: GPL-2.0
20 /* Multi-Axes Color Correction table for ISP1.
37 /* Multi-Axes Color Correction table for ISP2.
/linux/tools/power/pm-graph/
H A DREADME8 pm-graph: suspend/resume/boot timing analysis tools
11 …Home Page: https://www.intel.com/content/www/us/en/developer/topic-technology/open/pm-graph/overvi…
13 Report bugs/issues at bugzilla.kernel.org Tools/pm-graph
14 - https://bugzilla.kernel.org/buglist.cgi?component=pm-graph&product=Tools
17 - Getting Started:
20 - Feature Summary:
21 https://www.intel.com/content/www/us/en/developer/topic-technology/open/pm-graph/features.html
23 - upstream version in git:
24 git clone https://github.com/intel/pm-graph/
27 - Overview
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/linux/drivers/media/platform/qcom/venus/
H A Dhfi_cmds.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2012-2016, The Linux Foundation. All rights reserved.
16 pkt->hdr.size = sizeof(*pkt); in pkt_sys_init()
17 pkt->hdr.pkt_type = HFI_CMD_SYS_INIT; in pkt_sys_init()
18 pkt->arch_type = arch_type; in pkt_sys_init()
23 pkt->hdr.size = sizeof(*pkt); in pkt_sys_pc_prep()
24 pkt->hdr.pkt_type = HFI_CMD_SYS_PC_PREP; in pkt_sys_pc_prep()
29 struct hfi_enable *hfi = (struct hfi_enable *)&pkt->data[1]; in pkt_sys_idle_indicator()
31 pkt->hdr.size = struct_size(pkt, data, 1) + sizeof(*hfi); in pkt_sys_idle_indicator()
32 pkt->hdr.pkt_type = HFI_CMD_SYS_SET_PROPERTY; in pkt_sys_idle_indicator()
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/linux/arch/arm/boot/dts/aspeed/
H A Daspeed-bmc-facebook-fuji.dts1 // SPDX-License-Identifier: GPL-2.0+
4 /dts-v1/;
6 #include <dt-bindings/leds/common.h>
7 #include "ast2600-facebook-netbmc-common.dtsi"
11 compatible = "facebook,fuji-bmc", "aspeed,ast2600";
15 * PCA9548 (2-0070) provides 8 channels connecting to
28 * PCA9548 (8-0070) provides 8 channels connecting to
41 * PCA9548 (11-0077) provides 8 channels connecting to
54 * PCA9548 (24-0071) provides 8 channels connecting to
55 * PDB-Left.
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/linux/Documentation/sphinx-static/
H A Dcustom.css1 /* SPDX-License-Identifier: GPL-2.0 */
7 div.body h1 { font-size: 180%; }
8 div.body h2 { font-size: 150%; }
9 div.body h3 { font-size: 130%; }
10 div.body h4 { font-size: 110%; }
13 div.toctree-wrapper p.caption[role=heading] { font-size: 150%; }
18 div.sphinxsidebar { font-size: inherit;
19 max-height: 100%;
20 overflow-y: auto; }
30 margin-bottom: 20px;
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/linux/arch/arm/boot/dts/st/
H A Dstm32mp157c-lxa-tac-gen2.dts1 // SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-3-Clause)
3 * Copyright (C) 2020 STMicroelectronics - All Rights Reserved
8 /dts-v1/;
11 #include "stm32mp15xc-lxa-tac.dtsi"
15 compatible = "lxa,stm32mp157c-tac-gen2", "oct,stm32mp15xx-osd32", "st,stm32mp157";
18 compatible = "pwm-backlight";
19 power-supply = <&v3v3>;
21 brightness-levels = <0 31 63 95 127 159 191 223 255>;
22 default-brightness-level = <7>;
26 reg_iobus_12v: regulator-iobus-12v {
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