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/openbmc/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dazoteq,iqs7211.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS7210A, IQS7211A and IQS7211E trackpad and touchscreen control-
14 lers employ projected-capacitance sensing and can track two contacts.
21 - azoteq,iqs7210a
22 - azoteq,iqs7211a
23 - azoteq,iqs7211e
28 irq-gpios:
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H A Dcolibri-vf50-ts.txt4 - compatible must be toradex,vf50-touchscreen
5 - io-channels: adc channels being used by the Colibri VF50 module
6 IIO ADC for Y-, X-, Y+, X+ connections
7 - xp-gpios: FET gate driver for input of X+
8 - xm-gpios: FET gate driver for input of X-
9 - yp-gpios: FET gate driver for input of Y+
10 - ym-gpios: FET gate driver for input of Y-
11 - interrupts: pen irq interrupt for touch detection, signal from X plate
12 - pinctrl-names: "idle", "default"
13 - pinctrl-0: pinctrl node for pen/touch detection, pinctrl must provide
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H A Dbrcm,iproc-touchscreen.txt4 - compatible: must be "brcm,iproc-touchscreen"
5 - ts_syscon: handler of syscon node defining physical base
9 - clocks: The clock provided by the SOC to driver the tsc
10 - clock-names: name for the clock
11 - interrupts: The touchscreen controller's interrupt
12 - address-cells: Specify the number of u32 entries needed in child nodes.
14 - size-cells: Specify number of u32 entries needed to specify child nodes size
18 - scanning_period: Time between scans. Each step is 1024 us. Valid 1-256.
19 - debounce_timeout: Each step is 512 us. Valid 0-255
20 - settling_timeout: The settling duration (in ms) is the amount of time
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/openbmc/linux/arch/powerpc/kernel/
H A Dcpu_setup_e500.S1 /* SPDX-License-Identifier: GPL-2.0-or-later */
17 #include <asm/nohash/mmu-e500.h>
18 #include <asm/asm-offsets.h>
27 mtspr SPRN_L1CSR1, r0 /* Enable I-Cache */
56 * FIXME - we haven't yet done testing to determine a reasonable default
67 /* Set Automatic PW20 Core Idle Count */
75 * FIXME - we haven't yet done testing to determine a reasonable default
82 /* Enable Altivec Idle */
86 /* Set Automatic AltiVec Idle Count */
98 /* Touch IVOR42 only if the CPU supports E.HV category */
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/openbmc/linux/drivers/input/touchscreen/
H A Dpixcir_i2c_ts.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2010-2011 Pixcir, Inc.
31 * idle: lower scan speed with automatic transition to active on touch
49 * level on touch: interrupt level asserted during touch
50 * pulse on touch: interrupt pulse asserted during touch
65 * struct pixcir_i2c_chip_data - chip related data
99 u8 touch; in pixcir_ts_parse() local
102 const struct pixcir_i2c_chip_data *chip = tsdata->chip; in pixcir_ts_parse()
106 i = chip->has_hw_ids ? 1 : 0; in pixcir_ts_parse()
107 readsize = 2 + tsdata->chip->max_fingers * (4 + i); in pixcir_ts_parse()
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H A Degalax_ts.c1 // SPDX-License-Identifier: GPL-2.0
3 * Driver for EETI eGalax Multiple Touch Controller
10 /* EETI eGalax serial touch screen controller is a I2C based multiple
11 * touch screen controller, it supports 5 point multiple touch. */
14 - auto idle mode support
41 /* Multiple Touch Mode */
67 struct input_dev *input_dev = ts->input_dev; in egalax_ts_interrupt()
68 struct i2c_client *client = ts->client; in egalax_ts_interrupt()
77 } while (ret == -EAGAIN && tries++ < EGALAX_MAX_TRIES); in egalax_ts_interrupt()
97 dev_dbg(&client->dev, "point invalid\n"); in egalax_ts_interrupt()
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H A Dcolibri-vf50-ts.c1 // SPDX-License-Identifier: GPL-2.0-or-later
25 #define DRIVER_NAME "colibri-vf50-ts"
27 #define VF_ADC_MAX ((1 << 12) - 1)
50 * Enables given plates and measures touch parameters using ADC
83 * Enable touch detection using falling edge detection on XM
88 gpiod_set_value(vf50_ts->gpio_ym, 1); in vf50_ts_enable_touch_detection()
91 * Let the platform mux to idle state in order to enable in vf50_ts_enable_touch_detection()
92 * Pull-Up on GPIO in vf50_ts_enable_touch_detection()
94 pinctrl_pm_select_idle_state(&vf50_ts->pdev->dev); in vf50_ts_enable_touch_detection()
96 /* Wait for the pull-up to be stable on high */ in vf50_ts_enable_touch_detection()
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H A Dzforce_ts.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2012-2013 MundoReader S.L.
62 * Notifications are sent by the touch controller without
64 * touch indications
99 * @access_mutex serialize i2c-access, to keep multipart reads together
137 struct i2c_client *client = ts->client; in zforce_command()
141 dev_dbg(&client->dev, "%s: 0x%x\n", __func__, cmd); in zforce_command()
147 mutex_lock(&ts->access_mutex); in zforce_command()
149 mutex_unlock(&ts->access_mutex); in zforce_command()
151 dev_err(&client->dev, "i2c send data request error: %d\n", ret); in zforce_command()
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H A Dti_am335x_tsc.c2 * TI Touch Screen driver
4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
35 #define MAX_12BIT ((1 << 12) - 1)
64 return readl(ts->mfd_tscadc->tscadc_base + reg); in titsc_readl()
70 writel(val, tsc->mfd_tscadc->tscadc_base + reg); in titsc_writel()
84 analog_line[i] = (ts_dev->config_inp[i] & 0xF0) >> 4; in titsc_config_wires()
85 wire_order[i] = ts_dev->config_inp[i] & 0x0F; in titsc_config_wires()
87 return -EINVAL; in titsc_config_wires()
89 return -EINVAL; in titsc_config_wires()
100 return -EINVAL; in titsc_config_wires()
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H A Diqs7211.c1 // SPDX-License-Identifier: GPL-2.0-or-later
52 * The following delay is used during instances that must wait for the open-
124 .name = "event-prox",
131 .name = "event-touch",
138 .name = "event-tap",
145 .name = "event-hold",
152 .name = "event-swipe-x-neg",
159 .name = "event-swipe-x-pos",
166 .name = "event-swipe-y-pos",
173 .name = "event-swipe-y-neg",
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/openbmc/linux/arch/arm/boot/dts/st/
H A Dstm32mp157a-icore-stm32mp1-ctouch2.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
8 /dts-v1/;
10 #include "stm32mp157a-icore-stm32mp1.dtsi"
11 #include "stm32mp15-pinctrl.dtsi"
12 #include "stm32mp15xxaa-pinctrl.dtsi"
13 #include <dt-bindings/gpio/gpio.h>
16 model = "Engicam i.Core STM32MP1 C.TOUCH 2.0";
17 compatible = "engicam,icore-stm32mp1-ctouch2",
18 "engicam,icore-stm32mp1", "st,stm32mp157";
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H A Dstm32mp157a-icore-stm32mp1-ctouch2-of10.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (c) STMicroelectronics 2019 - All Rights Reserved
8 /dts-v1/;
10 #include "stm32mp157a-icore-stm32mp1.dtsi"
11 #include "stm32mp15-pinctrl.dtsi"
12 #include "stm32mp15xxaa-pinctrl.dtsi"
13 #include <dt-bindings/gpio/gpio.h>
16 model = "Engicam i.Core STM32MP1 C.TOUCH 2.0 10.1\" Open Frame";
17 compatible = "engicam,icore-stm32mp1-ctouch2-of10",
18 "engicam,icore-stm32mp1", "st,stm32mp157";
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H A Dstm32mp157c-phycore-stm32mp15-som.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) 2022-2023 Steffen Trumtrar <kernel@pengutronix.de>
4 * Copyright (C) Phytec GmbH 2019-2020 - All Rights Reserved
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/leds/common.h>
13 #include <dt-bindings/leds/leds-pca9532.h>
14 #include <dt-bindings/mfd/st,stpmic1.h>
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/openbmc/linux/drivers/input/mouse/
H A Dcyapa_gen3.c9 * Copyright (C) 2011-2015 Cypress Semiconductor, Inc.
10 * Copyright (C) 2011-2012 Google, Inc.
60 * Used in register 0x00, bit1-0, DeviceStatus field.
88 * bit 7 - 4: high 4 bits of x position value
89 * bit 3 - 0: high 4 bits of y position value
95 /* id range is 1 - 15. It is incremented with every new touch. */
101 * bit 0 - 1: device status
102 * bit 3 - 2: power mode
103 * bit 6 - 4: reserved
108 * bit 7 - 4: number of fingers currently touching pad
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/openbmc/linux/tools/testing/selftests/kvm/
H A Daccess_tracking_perf_test.c1 // SPDX-License-Identifier: GPL-2.0
10 * however the clear_young notifier can be triggered by marking a pages as idle
15 * vCPUs that each touch every page in disjoint regions of memory. Performance
58 /* Mark the vCPU's memory idle in page_idle. */
93 #define PAGEMAP_PFN_MASK ((1ULL << 55) - 1)
129 int vcpu_idx = vcpu_args->vcpu_idx; in mark_vcpu_memory_idle()
130 uint64_t base_gva = vcpu_args->gva; in mark_vcpu_memory_idle()
131 uint64_t pages = vcpu_args->pages; in mark_vcpu_memory_idle()
138 /* If vCPUs are using an overlapping region, let vCPU 0 mark it idle. */ in mark_vcpu_memory_idle()
174 * Check that at least 90% of memory has been marked idle (the rest in mark_vcpu_memory_idle()
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/openbmc/linux/Documentation/devicetree/bindings/mfd/
H A Dst,stmpe.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
15 - Linus Walleij <linus.walleij@linaro.org>
18 - $ref: /schemas/spi/spi-peripheral-props.yaml#
23 - st,stmpe601
24 - st,stmpe801
25 - st,stmpe811
26 - st,stmpe1600
27 - st,stmpe1601
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/openbmc/linux/Documentation/timers/
H A Dhighres.rst8 https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf
11 http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf
23 - hrtimer base infrastructure
24 - timeofday and clock source management
25 - clock event management
26 - high resolution timer functionality
27 - dynamic ticks
31 ---------------------------
40 - time ordered enqueueing into a rb-tree
41 - independent of ticks (the processing is based on nanoseconds)
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/openbmc/linux/arch/arm64/boot/dts/rockchip/
H A Drk3399-gru.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
5 * Copyright 2016-2017 Google, Inc
8 #include <dt-bindings/input/input.h>
10 #include "rk3399-op1-opp.dtsi"
19 stdout-path = "serial2:115200n8";
28 * - Rails that only connect to the EC (or devices that the EC talks to)
30 * - Rails _are_ included if the rails go to the AP even if the AP
39 * - The EC controls the enable and the EC always enables a rail as
41 * - The rails are actually connected to each other by a jumper and
46 ppvar_sys: ppvar-sys {
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/openbmc/linux/block/
H A Dbfq-wf2q.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Hierarchical Budget Worst-case Fair Weighted Fair Queueing
4 * (B-WF2Q+): hierarchical scheduling algorithm by which the BFQ I/O
9 #include "bfq-iosched.h"
12 * bfq_gt - compare two timestamps.
20 return (s64)(a - b) > 0; in bfq_gt()
25 struct rb_node *node = tree->rb_node; in bfq_root_active_entity()
34 return bfqq ? bfqq->ioprio_class - 1 : in bfq_class_idx()
35 BFQ_DEFAULT_GRP_CLASS - 1; in bfq_class_idx()
40 return bfqd->busy_queues[0] + bfqd->busy_queues[1] + in bfq_tot_busy_queues()
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/openbmc/linux/drivers/gpu/drm/i915/gt/
H A Dintel_engine_pm.c1 // SPDX-License-Identifier: MIT
22 struct drm_i915_private *i915 = engine->i915; in intel_gsc_idle_msg_enable()
24 if (MEDIA_VER(i915) >= 13 && engine->id == GSC0) { in intel_gsc_idle_msg_enable()
25 intel_uncore_write(engine->gt->uncore, in intel_gsc_idle_msg_enable()
29 intel_uncore_write(engine->gt->uncore, in intel_gsc_idle_msg_enable()
40 if (ce->state) { in dbg_poison_ce()
41 struct drm_i915_gem_object *obj = ce->state->obj; in dbg_poison_ce()
42 int type = intel_gt_coherent_map_type(ce->engine->gt, obj, true); in dbg_poison_ce()
50 memset(map, CONTEXT_REDZONE, obj->base.size); in dbg_poison_ce()
66 intel_gt_pm_get(engine->gt); in __engine_unpark()
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/openbmc/linux/Documentation/arch/x86/x86_64/
H A Dboot-options.rst1 .. SPDX-License-Identifier: GPL-2.0
39 Do not opt-in to Local MCE delivery. Use legacy method
55 Don't overwrite the bios-set CMCI threshold. This boot option
62 Force-enable recoverable machine check code paths
73 Use IO-APIC. Default
76 Don't use the IO-APIC.
85 See Documentation/arch/x86/i386/IO-APIC.rst
91 Don't check the IO-APIC timer. This can work around
107 Idle loop
110 idle=poll
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/openbmc/linux/kernel/sched/
H A Dcputime.c1 // SPDX-License-Identifier: GPL-2.0-only
20 * task when irq is in progress while we read rq->clock. That is a worthy
40 u64 *cpustat = kcpustat_this_cpu->cpustat; in irqtime_account_delta()
42 u64_stats_update_begin(&irqtime->sync); in irqtime_account_delta()
44 irqtime->total += delta; in irqtime_account_delta()
45 irqtime->tick_delta += delta; in irqtime_account_delta()
46 u64_stats_update_end(&irqtime->sync); in irqtime_account_delta()
64 delta = sched_clock_cpu(cpu) - irqtime->irq_start_time; in irqtime_account_irq()
65 irqtime->irq_start_time += delta; in irqtime_account_irq()
66 pc = irq_count() - offset; in irqtime_account_irq()
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/openbmc/linux/Documentation/admin-guide/mm/
H A Dpagemap.rst12 physical frame each virtual page is mapped to. It contains one 64-bit
16 * Bits 0-54 page frame number (PFN) if present
17 * Bits 0-4 swap type if swapped
18 * Bits 5-54 swap offset if swapped
19 * Bit 55 pte is soft-dirty (see
20 Documentation/admin-guide/mm/soft-dirty.rst)
22 * Bit 57 pte is uffd-wp write-protected (since 5.13) (see
23 Documentation/admin-guide/mm/userfaultfd.rst)
24 * Bits 58-60 zero
25 * Bit 61 page is file-page or shared-anon (since 3.5)
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/openbmc/linux/tools/testing/selftests/rcutorture/bin/
H A Dkvm-remote.sh2 # SPDX-License-Identifier: GPL-2.0+
6 # Usage: kvm-remote.sh "systems" [ <kvm.sh args> ]
7 # kvm-remote.sh "systems" /path/to/old/run [ <kvm-again.sh args> ]
16 if ! test -d tools/testing/selftests/rcutorture/bin
18 echo $scriptname must be run from top-level directory of kernel source tree.
29 if test -z "$systems"
37 # T: /tmp/kvm-remote.sh.NNNNNN where "NNNNNN" is set by mktemp
38 # resdir: /tmp/kvm-remote.sh.NNNNNN/res
39 # rundir: /tmp/kvm-remote.sh.NNNNNN/res/$ds ("-remote" suffix)
43 # TD: kvm-remote.sh.NNNNNN
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/openbmc/linux/drivers/input/misc/
H A Dad714x.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2009-2011 Analog Devices Inc.
67 enum ad714x_device_state { IDLE, JITTER, ACTIVE, SPACE }; enumerator
132 mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1); in ad714x_use_com_int()
134 ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1); in ad714x_use_com_int()
136 ad714x->write(ad714x, STG_COM_INT_EN_REG, data); in ad714x_use_com_int()
138 ad714x->read(ad714x, STG_HIGH_INT_EN_REG, &data, 1); in ad714x_use_com_int()
140 ad714x->write(ad714x, STG_HIGH_INT_EN_REG, data); in ad714x_use_com_int()
149 mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1); in ad714x_use_thr_int()
151 ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1); in ad714x_use_thr_int()
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