| /Linux-v5.15/Documentation/devicetree/bindings/leds/backlight/ |
| D | lm3630a-backlight.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/lm3630a-backlight.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI LM3630A High-Efficiency Dual-String White LED
10 - Lee Jones <lee.jones@linaro.org>
11 - Daniel Thompson <daniel.thompson@linaro.org>
12 - Jingoo Han <jingoohan1@gmail.com>
15 The LM3630A is a current-mode boost converter which supplies the power and
26 '#address-cells':
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| /Linux-v5.15/arch/arm64/mm/ |
| D | init.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 1995-2005 Russell King
23 #include <linux/dma-direct.h>
24 #include <linux/dma-map-ops.h>
38 #include <asm/kernel-pgtable.h>
47 #include <asm/xen/swiotlb-xen.h>
55 s64 memstart_addr __ro_after_init = -1;
60 * and ZONE_DMA32. By default ZONE_DMA covers the 32-bit addressable memory
61 * unless restricted on specific platforms (e.g. 30-bit on Raspberry Pi 4).
62 * In such case, ZONE_DMA32 covers the rest of the 32-bit addressable memory,
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| /Linux-v5.15/Documentation/ABI/testing/ |
| D | sysfs-class-backlight-driver-lm3533 | 7 ALS-current-control mode (0, 1), where:
19 Enable ALS-current-control mode (0, 1).
28 What: /sys/class/backlight/<backlight>/linear
33 Set the brightness-mapping mode (0, 1), where:
36 0 exponential mode
37 1 linear mode
45 Set the PWM-input control mask (5 bits), where:
48 bit 5 PWM-input enabled in Zone 4
49 bit 4 PWM-input enabled in Zone 3
50 bit 3 PWM-input enabled in Zone 2
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| D | sysfs-class-led-driver-lm3533 | 7 ALS-current-control mode (1, 2), where:
19 Enable ALS-current-control mode (0, 1).
47 What: /sys/class/leds/<led>/linear
52 Set the brightness-mapping mode (0, 1), where:
55 0 exponential mode
56 1 linear mode
64 Set the PWM-input control mask (5 bits), where:
67 bit 5 PWM-input enabled in Zone 4
68 bit 4 PWM-input enabled in Zone 3
69 bit 3 PWM-input enabled in Zone 2
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| D | sysfs-class-backlight-lm3639 | 2 ------------------------------------------------------------------------------
7 Contact: dri-devel@lists.freedesktop.org
9 (WO) Write to the backlight mapping mode. The backlight current
10 can be mapped for either exponential (value "0") or linear
11 mapping modes (default).
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| /Linux-v5.15/drivers/gpu/drm/amd/display/amdgpu_dm/ |
| D | amdgpu_dm_color.c | 36 * - Input gamma LUT (de-normalized)
37 * - Input CSC (normalized)
38 * - Surface degamma LUT (normalized)
39 * - Surface CSC (normalized)
40 * - Surface regamma LUT (normalized)
41 * - Output CSC (normalized)
43 * But these aren't a direct mapping to DRM color properties. The current DRM
47 * Plane CTM -> Plane degamma -> Plane CTM -> Plane regamma -> Plane CTM
57 * support any CRTC props with correct blending with multiple planes - but we
62 * respective property is set to NULL. A linear DGM/RGM LUT should also
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| /Linux-v5.15/drivers/mtd/maps/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
2 menu "Mapping drivers for chip access"
7 bool "Support non-linear mappings of flash chips"
16 This provides a 'mapping' driver which allows the NOR Flash and
21 with config options or at run-time.
31 Setup a simple mapping via the Kconfig options. Normally the
38 hex "Physical start address of flash mapping"
48 hex "Physical length of flash mapping"
52 This is the total length of the mapping of the flash chips on
73 This provides a 'mapping' driver which allows the NOR Flash, ROM
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| /Linux-v5.15/include/linux/regulator/ |
| D | machine.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * machine.h -- SoC Regulator support, machine/board driver API.
28 * MODE: Regulator operating mode can be changed by software on this
31 * DRMS: Dynamic Regulator Mode Switching is enabled for this regulator.
32 * BYPASS: Regulator can be put into bypass mode
43 * operations in suspend mode
44 * DO_NOTHING_IN_SUSPEND - the default value
45 * DISABLE_IN_SUSPEND - turn off regulator in suspend states
46 * ENABLE_IN_SUSPEND - keep regulator on in suspend states
60 * struct regulator_state - regulator state during low power system states
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| D | driver.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * driver.h -- SoC Regulator driver support.
62 * struct regulator_ops - regulator operations.
75 * return -ENOTRECOVERABLE if regulator can't be read at
78 * regulator; return -ENOTRECOVERABLE if regulator can't
85 * @set_current_limit: Configure a limit for a current-limited regulator.
87 * @get_current_limit: Get the configured limit for a current-limited regulator.
94 * REGULATOR_SEVERITY_ERR should indicate that over-current situation is
112 * @set_mode: Set the configured operating mode for the regulator.
113 * @get_mode: Get the configured operating mode for the regulator.
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| /Linux-v5.15/include/uapi/drm/ |
| D | drm_fourcc.h | 39 * further describe the buffer's format - for example tiling or compression.
42 * ----------------
56 * vendor-namespaced, and as such the relationship between a fourcc code and a
58 * may preserve meaning - such as number of planes - from the fourcc code,
64 * a modifier: a buffer may match a 64-pixel aligned modifier and a 32-pixel
76 * - Kernel and user-space drivers: for drivers it's important that modifiers
80 * - Higher-level programs interfacing with KMS/GBM/EGL/Vulkan/etc: these users
180 * IEEE 754-2008 binary16 half-precision float
190 * RGBA format with 10-bit components packed in 64-bit per pixel, with 6 bits
204 …10 fourcc_code('V', 'U', '3', '0') /* Y followed by U then V, 10:10:10. Non-linear modifier only */
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| /Linux-v5.15/arch/powerpc/kernel/ |
| D | setup_64.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
61 #include <asm/code-patching.h>
66 #include <asm/feature-fixups.h>
70 #include <asm/asm-prototypes.h>
100 * If we boot via kdump on a non-primary thread, in setup_tlb_core_data()
107 paca_ptrs[cpu]->tcd_ptr = &paca_ptrs[first]->tcd; in setup_tlb_core_data()
111 * or e6500 tablewalk mode, or else TLB handlers in setup_tlb_core_data()
127 /* Look for ibm,smt-enabled OF option */
154 smt_option = of_get_property(dn, "ibm,smt-enabled", in check_smt_enabled()
169 /* Look for smt-enabled= cmdline option */
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| /Linux-v5.15/include/linux/ |
| D | resctrl.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
19 * enum resctrl_conf_type - The type of configuration.
33 * struct resctrl_staged_config - parsed configuration to be applied
43 * struct rdt_domain - group of CPUs sharing a resctrl resource
54 * @plr: pseudo-locked region (if any) associated with domain
73 * struct resctrl_cache - Cache allocation related data
93 * enum membw_throttle_mode - System's memory bandwidth throttling mode
107 * struct resctrl_membw - Memory bandwidth allocation related data
110 * @delay_linear: True if memory B/W delay is in linear scale
111 * @arch_needs_linear: True if we can't configure non-linear resources
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| D | led-lm3530.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2011 ST-Ericsson SA.
9 * based on leds-lm3530.c by Dan Murphy <D.Murphy@motorola.com>
82 * @mode: mode of operation i.e. Manual, ALS or PWM
83 * @als_input_mode: select source of ALS input - ALS1/2 or average
85 * @pwm_pol_hi: PWM input polarity - active high/active low
87 * @brt_ramp_law: brightness mapping mode - exponential/linear
94 * @brt_val: brightness value (0-127)
95 * @pwm_data: PWM control functions (only valid when the mode is PWM)
98 enum lm3530_mode mode; member
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| /Linux-v5.15/drivers/md/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
30 Software RAID mini-HOWTO, available from
45 a several-second delay in the boot time due to various
51 tristate "Linear (append) mode (deprecated)"
55 use the so-called linear mode, i.e. it will combine the hard disk
59 will be called linear.
64 tristate "RAID-0 (striping) mode"
68 use the so-called raid0 mode, i.e. it will combine the hard disk
74 Software-RAID mini-HOWTO, available from
84 tristate "RAID-1 (mirroring) mode"
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| /Linux-v5.15/Documentation/virt/kvm/ |
| D | mmu.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 - correctness:
18 - security:
21 - performance:
23 - scaling:
25 - hardware:
27 - integration:
31 - dirty tracking:
33 and framebuffer-based displays
34 - footprint:
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| /Linux-v5.15/arch/x86/kernel/ |
| D | head32.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * linux/arch/i386/kernel/head32.c -- prepare to run common code
63 * Mappings are created both at virtual address 0 (identity mapping)
66 * In PAE mode initial_page_table is statically defined to contain
68 * entries). The identity mapping is handled by pointing two PGD entries
77 #define __pa(x) ((unsigned long)(x) - PAGE_OFFSET) in mk_early_pgtbl_32()
81 /* Enough space to fit pagetables for the low memory linear map */ in mk_early_pgtbl_32()
|
| /Linux-v5.15/Documentation/dev-tools/ |
| D | kasan.rst | 5 --------
8 designed to find out-of-bound and use-after-free bugs. KASAN has three modes:
11 2. software tag-based KASAN (similar to userspace HWASan),
12 3. hardware tag-based KASAN (based on hardware memory tagging).
15 Software tag-based KASAN can be used for dogfood testing as it has a lower
16 memory overhead that allows using it with real workloads. Hardware tag-based
18 used in production. Either as an in-field memory bug detector or as a security
21 Software KASAN modes (#1 and #2) use compile-time instrumentation to insert
27 out-of-bounds accesses for global variables is only supported since Clang 11.
29 Software tag-based KASAN mode is only supported in Clang.
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| /Linux-v5.15/drivers/gpu/drm/etnaviv/ |
| D | etnaviv_mmu.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2015-2018 Etnaviv Project
6 #include <linux/dma-mapping.h>
29 unmapped_page = context->global->ops->unmap(context, iova, in etnaviv_context_unmap()
51 return -EINVAL; in etnaviv_context_map()
55 ret = context->global->ops->map(context, iova, paddr, pgsize, in etnaviv_context_map()
62 size -= pgsize; in etnaviv_context_map()
65 /* unroll mapping in case something went wrong */ in etnaviv_context_map()
67 etnaviv_context_unmap(context, orig_iova, orig_size - size); in etnaviv_context_map()
80 return -EINVAL; in etnaviv_iommu_map()
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| /Linux-v5.15/arch/x86/include/asm/xen/ |
| D | interface.h | 2 * arch-x86_32.h
24 * Copyright (c) 2004-2006, K A Fraser
104 #define MACH2PHYS_NR_ENTRIES ((MACH2PHYS_VIRT_END-MACH2PHYS_VIRT_START)>>__MACH2PHYS_SHIFT)
106 /* Maximum number of virtual CPUs in multi-processor guests. */
114 * start of the GDT because some stupid OSes export hard-coded selector values
115 * in their ABI. These hard-coded values are always near the start of the GDT,
135 #define TI_GET_DPL(_ti) ((_ti)->flags & 3)
136 #define TI_GET_IF(_ti) ((_ti)->flags & 4)
137 #define TI_SET_DPL(_ti, _dpl) ((_ti)->flags |= (_dpl))
138 #define TI_SET_IF(_ti, _if) ((_ti)->flags |= ((!!(_if))<<2))
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| /Linux-v5.15/arch/alpha/include/asm/ |
| D | core_irongate.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
9 * IRONGATE is the internal name for the AMD-751 K7 core logic chipset
10 * which provides memory controller and PCI access for NAUTILUS-based
21 * The 21264 supports, and internally recognizes, a 44-bit physical
30 * through the routines given is 32-bit.
38 igcsr32 dev_vendor; /* 0x00 - device ID, vendor ID */
39 igcsr32 stat_cmd; /* 0x04 - status, command */
40 igcsr32 class; /* 0x08 - class code, rev ID */
41 igcsr32 latency; /* 0x0C - header type, PCI latency */
42 igcsr32 bar0; /* 0x10 - BAR0 - AGP */
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| /Linux-v5.15/arch/powerpc/mm/ |
| D | mem.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
9 * PPC44x/36-bit changes by Matt Porter (mporter@mvista.com)
18 #include <linux/dma-direct.h>
60 return -ENODEV; in create_section_mapping()
65 return -ENODEV; in remove_section_mapping()
76 params->pgprot); in arch_create_linear_mapping()
79 pr_warn("Unable to create linear mapping for 0x%llx..0x%llx: %d\n", in arch_create_linear_mapping()
81 return -EFAULT; in arch_create_linear_mapping()
97 pr_warn("Unable to remove linear mapping for 0x%llx..0x%llx: %d\n", in arch_remove_linear_mapping()
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| /Linux-v5.15/arch/powerpc/include/asm/ |
| D | kvm_host.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
51 /* PPC-specific vcpu->requests bit members */
72 /* Physical Address Mask - allowed range of real mode RAM access */
210 * The reverse mapping array has one entry for each HPTE,
212 * (including the guest physical address of the mapping),
213 * plus forward and backward pointers in a doubly-linked ring
215 * ring are 32-bit HPTE indexes, to save space.
254 /* Host virtual (linear mapping) address of guest HPT */
256 /* Array of reverse mapping entries for each guest HPTE */
274 unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
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| /Linux-v5.15/mm/ |
| D | memremap.c | 1 // SPDX-License-Identifier: GPL-2.0
21 * constraints on the alignment and size of the mapping (namespace).
24 * the minimum mapping granularity of memremap_pages() is 16MB.
30 * reconfigured into a mode that requires SUBSECTION_SIZE alignment.
46 if (pgmap->type == MEMORY_DEVICE_PRIVATE || in devmap_managed_enable_put()
47 pgmap->type == MEMORY_DEVICE_FS_DAX) in devmap_managed_enable_put()
53 if (pgmap->type == MEMORY_DEVICE_PRIVATE || in devmap_managed_enable_get()
54 pgmap->type == MEMORY_DEVICE_FS_DAX) in devmap_managed_enable_get()
68 xa_store_range(&pgmap_array, PHYS_PFN(range->start), PHYS_PFN(range->end), in pgmap_array_delete()
75 struct range *range = &pgmap->ranges[range_id]; in pfn_first()
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| /Linux-v5.15/drivers/pinctrl/intel/ |
| D | pinctrl-intel.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
26 * struct intel_pingroup - Description about group of pins
30 * @mode: Native mode in which the group is muxed out @pins. Used if @modes
32 * @modes: If not %NULL this will hold mode for each pin in @pins
38 unsigned short mode; member
43 * struct intel_function - Description about a function
55 * struct intel_padgroup - Hardware pad group information
74 * enum - Special treatment for GPIO base in pad group
77 * @INTEL_GPIO_BASE_NOMAP: no GPIO mapping should be created
81 INTEL_GPIO_BASE_ZERO = -2,
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| /Linux-v5.15/arch/arm64/include/asm/ |
| D | kvm_mmu.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2012,2013 - ARM Ltd
20 * Instead, give the HYP mode its own VA region at a fixed offset from
29 * and that half of that space (VA_BITS - 1) is used for the linear
30 * mapping, we can also limit the EL2 space to (VA_BITS - 1).
33 * top or the bottom half of that space to shadow the kernel's linear
34 * mapping?". As we need to idmap the trampoline page, this is
41 * if (T & BIT(VA_BITS - 1))
44 * HYP_VA_MIN = 1 << (VA_BITS - 1)
45 * HYP_VA_MAX = HYP_VA_MIN + (1 << (VA_BITS - 1)) - 1
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