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/linux/Documentation/devicetree/bindings/nvmem/layouts/
H A Dfixed-layout.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/layouts/fixed-layout.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVMEM layout for fixed NVMEM cells
10 Many NVMEM devices have hardcoded cells layout (offset and size of defined
13 This binding allows defining such NVMEM layout with its cells. It can be used
17 - Rafał Miłecki <rafal@milecki.pl>
21 const: fixed-layout
23 "#address-cells":
[all …]
H A Dnvmem-layout.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/layouts/nvmem-layout.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
11 - Michael Walle <michael@walle.cc>
12 - Miquel Raynal <miquel.raynal@bootlin.com>
18 perform their parsing. The nvmem-layout container is here to describe these.
21 - $ref: fixed-layout.yaml
22 - $ref: kontron,sl28-vpd.yaml
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H A Du-boot,env.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/nvmem/layouts/u-boot,env.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: U-Boot environment variables layout
10 U-Boot uses environment variables to store device parameters and
14 Data is stored using U-Boot specific formats (variant specific header and NUL
15 separated key-value pairs).
27 - Rafał Miłecki <rafal@milecki.pl>
32 - description: A standalone env data block
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/linux/drivers/nvmem/
H A Dlayouts.c1 // SPDX-License-Identifier: GPL-2.0
3 * NVMEM layout bus handling
10 #include <linux/dma-mapping.h>
11 #include <linux/nvmem-consumer.h>
12 #include <linux/nvmem-provider.h>
31 struct nvmem_layout_driver *drv = to_nvmem_layout_driver(dev->driver); in nvmem_layout_bus_probe()
32 struct nvmem_layout *layout = to_nvmem_layout_device(dev); in nvmem_layout_bus_probe() local
34 if (!drv->probe || !drv->remove) in nvmem_layout_bus_probe()
35 return -EINVAL; in nvmem_layout_bus_probe()
37 return drv->probe(layout); in nvmem_layout_bus_probe()
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/linux/arch/arm/boot/dts/ti/omap/
H A Dam335x-bone-common.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2012 Texas Instruments Incorporated - https://www.ti.com/
9 cpu0-supply = <&dcdc2_reg>;
19 stdout-path = &uart0;
23 pinctrl-names = "default";
24 pinctrl-0 = <&user_leds_s0>;
26 compatible = "gpio-leds";
31 linux,default-trigger = "heartbeat";
32 default-state = "off";
38 linux,default-trigger = "mmc0";
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/linux/include/linux/
H A Dnvmem-provider.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * Copyright (C) 2013 Maxime Ripard <maxime.ripard@free-electrons.com>
36 #define NVMEM_DEVID_NONE (-1)
37 #define NVMEM_DEVID_AUTO (-2)
40 * struct nvmem_keepout - NVMEM register keepout range.
53 * struct nvmem_cell_info - NVMEM cell description
78 * struct nvmem_config - NVMEM device configuration
84 * @cells: Optional array of pre-defined NVMEM cells.
86 * @add_legacy_fixed_of_cells: Read fixed NVMEM cells from old OF syntax.
92 * @read_only: Device is read-only.
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/linux/Documentation/devicetree/bindings/mtd/partitions/
H A Dlinux,ubi.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 physical flash device and spreads the I/O load (i.e wear-leveling)
16 - Daniel Golle <daniel@makrotopia.org>
19 - $ref: partition.yaml#
30 "^ubi-volume-.*$":
31 $ref: /schemas/mtd/partitions/ubi-volume.yaml#
36 - compatible
41 - |
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/linux/Documentation/devicetree/bindings/nvmem/
H A Dnvmem.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
23 "#address-cells":
26 "#size-cells":
29 read-only:
34 wp-gpios:
36 GPIO to which the write-protect pin of the chip is connected.
37 The write-protect GPIO is asserted, when it's driven high
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H A Dnvmem-deprecated-cells.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/nvmem-deprecated-cells.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NVMEM old syntax for fixed cells
10 - Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
13 Before introducing NVMEM layouts all NVMEM (fixed) cells were defined
14 as direct device subnodes. That syntax was replaced by "fixed-layout"
18 "@[0-9a-f]+(,[0-7])?$":
21 - $ref: layouts/fixed-cell.yaml
[all …]
H A Dxlnx,zynqmp-nvmem.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/nvmem/xlnx,zynqmp-nvmem.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
14 - Kalyani Akula <kalyani.akula@amd.com>
15 - Praveen Teja Kundanala <praveen.teja.kundanala@amd.com>
18 - $ref: nvmem.yaml#
22 const: xlnx,zynqmp-nvmem-fw
25 - compatible
30 - |
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H A Dapple,spmi-nvmem.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/nvmem/apple,spmi-nvmem.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 - Sasha Finkelstein <fnkl.kernel@gmail.com>
15 - $ref: nvmem.yaml#
20 - enum:
21 - apple,maverick-pmic
22 - apple,sera-pmic
23 - apple,stowe-pmic
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/linux/arch/arm64/boot/dts/renesas/
H A Dr8a779f4.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
3 * Device Tree Source for the R-Car S4-8 (R8A779F4) SoC
15 nvmem-layout {
16 compatible = "fixed-layout";
17 #address-cells = <1>;
18 #size-cells = <1>;
27 nvmem-cells = <&ufs_tune>;
28 nvmem-cell-names = "calibration";
/linux/arch/arm/boot/dts/broadcom/
H A Dbcm53016-meraki-mr32.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
6 * Copyright (C) 2018-2020 Christian Lamparter <chunkeey@gmail.com>
9 /dts-v1/;
12 #include "bcm5301x-nand-cs0-bch8.dtsi"
13 #include <dt-bindings/leds/common.h>
33 compatible = "gpio-leds";
39 panic-indicator;
49 compatible = "gpio-keys";
51 button-restart {
58 pwm-leds {
[all …]
H A Dbcm958625-meraki-mx6x-common.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
5 * Copyright (C) 2020-2021 Matthew Hagan <mnhagan88@gmail.com>
8 #include "bcm-nsp.dtsi"
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/input/input.h>
11 #include <dt-bindings/leds/common.h>
14 pwm-leds {
15 compatible = "pwm-leds";
17 led-1 {
21 max-brightness = <255>;
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6qdl-mba6a.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright 2013-2021 TQ-Systems GmbH
6 * Author: Markus Niebel <Markus.Niebel@tq-group.com>
10 pinctrl-names = "default";
11 pinctrl-0 = <&pinctrl_enet>, <&pinctrl_enet_fix>;
15 lm75: temperature-sensor@49 {
18 vs-supply = <&reg_mba6_3p3v>;
25 vcc-supply = <&reg_mba6_3p3v>;
27 nvmem-layout {
28 compatible = "fixed-layout";
[all …]
H A Dimx6qdl-mba6b.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright 2013-2021 TQ-Systems GmbH
6 * Author: Markus Niebel <Markus.Niebel@tq-group.com>
10 pinctrl-names = "default";
11 pinctrl-0 = <&pinctrl_enet>;
15 clock-frequency = <100000>;
16 pinctrl-names = "default", "gpio";
17 pinctrl-0 = <&pinctrl_i2c1>;
18 pinctrl-1 = <&pinctrl_i2c1_recovery>;
19 scl-gpios = <&gpio5 27 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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/linux/arch/arm64/boot/dts/mediatek/
H A Dmt7986a-acelink-ew-7886cax.dts1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
3 /dts-v1/;
4 #include <dt-bindings/input/input.h>
5 #include <dt-bindings/gpio/gpio.h>
6 #include <dt-bindings/leds/common.h>
11 compatible = "acelink,ew-7886cax", "mediatek,mt7986a";
12 model = "Acelink EW-7886CAX";
19 stdout-path = "serial0:115200n8";
28 compatible = "gpio-keys";
30 key-restart {
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/linux/arch/arm/boot/dts/qcom/
H A Dqcom-ipq4018-ap120c-ac.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
3 #include "qcom-ipq4019.dtsi"
4 #include <dt-bindings/gpio/gpio.h>
5 #include <dt-bindings/input/input.h>
8 model = "ALFA Network AP120C-AC";
9 compatible = "alfa-network,ap120c-ac", "qcom,ipq4018";
16 stdout-path = "serial0:115200n8";
20 compatible = "gpio-keys";
22 key-reset {
31 i2c0_pins: i2c0-state {
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/linux/arch/arm64/boot/dts/broadcom/bcmbca/
H A Dbcm4908-asus-gt-ac5300.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
3 #include <dt-bindings/gpio/gpio.h>
4 #include <dt-bindings/input/input.h>
5 #include <dt-bindings/leds/common.h>
10 compatible = "asus,gt-ac5300", "brcm,bcm4908", "brcm,bcmbca";
11 model = "Asus GT-AC5300";
18 gpio-keys-polled {
19 compatible = "gpio-keys-polled";
20 poll-interval = <100>;
22 key-wifi {
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/linux/Documentation/driver-api/
H A Dioctl.rst18 the ioctl system call. While this can be any 32-bit number that uniquely
22 ``include/uapi/asm-generic/ioctl.h`` provides four macros for defining
36 An 8-bit number, often a character literal, specific to a subsystem
37 or driver, and listed in Documentation/userspace-api/ioctl/ioctl-number.rst
40 An 8-bit number identifying the specific command, unique for a give
45 encodes the ``sizeof(data_type)`` value in a 13-bit or 14-bit integer,
74 handler returns either -ENOTTY or -ENOIOCTLCMD, which also results in
75 -ENOTTY being returned from the system call. Some subsystems return
76 -ENOSYS or -EINVAL here for historic reasons, but this is wrong.
79 -ENOIOCTLCMD in order to use the fallback conversion into native
[all …]
/linux/drivers/md/dm-vdo/indexer/
H A Dgeometry.c1 // SPDX-License-Identifier: GPL-2.0-only
13 #include "memory-alloc.h"
16 #include "delta-index.h"
20 * An index volume is divided into a fixed number of fixed-size chapters, each consisting of a
21 * fixed number of fixed-size pages. The volume layout is defined by two constants and four
22 * parameters. The constants are that index records are 32 bytes long (16-byte block name plus
23 * 16-byte metadata) and that open chapter index hash slots are one byte long. The four parameters
26 * derive the rest of the layout and other index properties.
45 * as many chapters as the corresponding non-sparse volume, which provides 10 times the
47 * non-sparse volume with the same memory footprint.
[all …]
/linux/Documentation/devicetree/bindings/mfd/
H A Dmaxim,max77759.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Maxim Integrated MAX77759 PMIC for USB Type-C applications
10 - André Draszik <andre.draszik@linaro.org>
14 Management IC for USB Type-C applications.
17 Type-C Port Controller (TCPC), NVMEM, and a GPIO expander.
26 interrupt-controller: true
28 "#interrupt-cells":
35 $ref: /schemas/gpio/maxim,max77759-gpio.yaml
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/linux/drivers/gpu/drm/imagination/
H A Dpvr_rogue_fwif_stream.h1 /* SPDX-License-Identifier: GPL-2.0-only OR MIT */
12 * A command stream has the following layout :
13 * - A 64-bit header containing:
16 * - The main stream data.
17 * - The extension stream (optional), which is composed of:
21 * The main stream provides the base command data. This has a fixed layout based on the features
51 * Stream extension header - Geometry 0
60 * Stream extension header - Fragment 0
70 * Stream extension header - Compute 0
/linux/drivers/gpu/drm/nouveau/dispnv50/
H A Dwndwc57e.c35 struct nvif_push *push = &wndw->wndw.push; in wndwc57e_image_set()
42 NVVAL(NVC57E, SET_PRESENT_CONTROL, MIN_PRESENT_INTERVAL, asyw->image.interval) | in wndwc57e_image_set()
43 NVVAL(NVC57E, SET_PRESENT_CONTROL, BEGIN_MODE, asyw->image.mode) | in wndwc57e_image_set()
47 NVVAL(NVC57E, SET_SIZE, WIDTH, asyw->image.w) | in wndwc57e_image_set()
48 NVVAL(NVC57E, SET_SIZE, HEIGHT, asyw->image.h), in wndwc57e_image_set()
51 NVVAL(NVC57E, SET_STORAGE, BLOCK_HEIGHT, asyw->image.blockh) | in wndwc57e_image_set()
52 NVVAL(NVC57E, SET_STORAGE, MEMORY_LAYOUT, asyw->image.layout), in wndwc57e_image_set()
55 NVVAL(NVC57E, SET_PARAMS, FORMAT, asyw->image.format) | in wndwc57e_image_set()
61 NVVAL(NVC57E, SET_PLANAR_STORAGE, PITCH, asyw->image.blocks[0]) | in wndwc57e_image_set()
62 NVVAL(NVC57E, SET_PLANAR_STORAGE, PITCH, asyw->image.pitch[0] >> 6)); in wndwc57e_image_set()
[all …]
/linux/Documentation/arch/arm/
H A Dmemory.rst2 Kernel Memory Layout on ARM Linux
9 This document describes the virtual memory layout which the Linux
39 in proc-xscale.S to flush the whole data
53 ff800000 ffbfffff Permanent, fixed read-only mapping of the
59 VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space.
68 PAGE_OFFSET high_memory-1 Kernel direct-mapped RAM region.
72 PKMAP_BASE PAGE_OFFSET-1 Permanent kernel mappings
76 MODULES_VADDR MODULES_END-1 Kernel module space
80 TASK_SIZE MODULES_VADDR-1 KASAn shadow memory when KASan is in use.
85 00001000 TASK_SIZE-1 User space mappings
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