| /linux/Documentation/devicetree/bindings/gpio/ |
| H A D | nxp,pcf8575.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: PCF857x-compatible I/O expanders
10 - Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
13 The PCF857x-compatible chips have "quasi-bidirectional" I/O lines that can be
14 driven high by a pull-up current source or driven low to ground. This
25 - maxim,max7328
26 - maxim,max7329
27 - nxp,pca8574
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| /linux/drivers/char/ipmi/ |
| H A D | ipmi_si_sm.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
5 * State machine interface for low-level IPMI system management
8 * BT interface) and the actual low-level state machine.
61 * return -2 if the state machine is not idle, -1 if the size
70 * -1 if the buffer is too small, zero if no transaction is
78 * receiving an interrupt (for a interrupt-driven interface).
79 * If interrupt driven, you should probably poll this
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| /linux/drivers/scsi/esas2r/ |
| H A D | esas2r_disc.c | 5 * Copyright (c) 2001-2013 ATTO Technology, Inc.
8 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
22 * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
41 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
43 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
85 struct esas2r_sas_nvram *nvr = a->nvram; in esas2r_disc_initialize()
89 clear_bit(AF_DISC_IN_PROG, &a->flags); in esas2r_disc_initialize()
90 clear_bit(AF2_DEV_SCAN, &a->flags2); in esas2r_disc_initialize()
91 clear_bit(AF2_DEV_CNT_OK, &a->flags2); in esas2r_disc_initialize()
93 a->disc_start_time = jiffies_to_msecs(jiffies); in esas2r_disc_initialize()
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| /linux/Documentation/admin-guide/ |
| H A D | parport.rst | 4 The ``parport`` code provides parallel-port support under Linux. This
16 port-sharing) and architecture-dependent (which deals with actually
28 architecture-dependent code with (for example)::
32 to tell the ``parport`` code that you want three PC-style ports, one at
34 auto-detected IRQ. Currently, PC-style (``parport_pc``), Sun ``bpp``,
43 --------
60 ------------------------
68 parport0: Printer, BJC-210 (Canon)
83 to add. Adding ``parport=0`` to the kernel command-line will disable
85 command-line will make ``parport`` use any IRQ lines or DMA channels that
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| /linux/Documentation/devicetree/bindings/pinctrl/ |
| H A D | pinctrl-st.txt | 3 Each multi-function pin is controlled, driven and routed through the
5 and multiple alternate functions(ALT1 - ALTx) that directly connect
9 Pull Up (PU) are driven by the related PIO block.
14 GPIO bank can have one of the two possible types of interrupt-wirings.
16 First type is via irqmux, single interrupt is used by multiple gpio banks. This
20 | |----> [gpio-bank (n) ]
21 | |----> [gpio-bank (n + 1)]
22 [irqN]-- | irq-mux |----> [gpio-bank (n + 2)]
23 | |----> [gpio-bank (... )]
24 |_________|----> [gpio-bank (n + 7)]
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| /linux/drivers/gpu/drm/amd/display/dc/gpio/ |
| H A D | hw_gpio.c | 2 * Copyright 2012-15 Advanced Micro Devices, Inc.
35 gpio->regs->field_name ## _shift, gpio->regs->field_name ## _mask
38 gpio->base.ctx
40 (gpio->regs->reg)
45 REG_GET(MASK_reg, MASK, &gpio->store.mask); in store_registers()
46 REG_GET(A_reg, A, &gpio->store.a); in store_registers()
47 REG_GET(EN_reg, EN, &gpio->store.en); in store_registers()
54 REG_UPDATE(MASK_reg, MASK, gpio->store.mask); in restore_registers()
55 REG_UPDATE(A_reg, A, gpio->store.a); in restore_registers()
56 REG_UPDATE(EN_reg, EN, gpio->store.en); in restore_registers()
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| /linux/drivers/gpu/drm/amd/amdgpu/ |
| H A D | amdgpu_irq.c | 30 * DOC: Interrupt Handling
32 * Interrupts generated within GPU hardware raise interrupt requests that are
34 * type of the interrupt and dispatching matching handlers. If handling an
35 * interrupt requires calling kernel functions that may sleep processing is
41 * For GPU interrupt sources that may be driven by another driver, IRQ domain
118 * amdgpu_irq_disable_all - disable *all* interrupts
130 spin_lock_irqsave(&adev->irq.lock, irqflags); in amdgpu_irq_disable_all()
132 if (!adev->irq.client[i].sources) in amdgpu_irq_disable_all()
136 struct amdgpu_irq_src *src = adev->irq.client[i].sources[j]; in amdgpu_irq_disable_all()
138 if (!src || !src->funcs->set || !src->num_types) in amdgpu_irq_disable_all()
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| /linux/Documentation/devicetree/bindings/sound/ |
| H A D | wlf,wm8994.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
11 - patches@opensource.cirrus.com
25 - wlf,wm1811
26 - wlf,wm8994
27 - wlf,wm8958
36 clock-names:
39 - const: MCLK1
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| /linux/Documentation/devicetree/bindings/net/ |
| H A D | cpsw.txt | 2 ------------------------------------------------------
5 - compatible : Should be one of the below:-
7 "ti,am335x-cpsw" for AM335x controllers
8 "ti,am4372-cpsw" for AM437x controllers
9 "ti,dra7-cpsw" for DRA7x controllers
10 - reg : physical base address and size of the cpsw
12 - interrupts : property with a value describing the interrupt
14 - cpdma_channels : Specifies number of channels in CPDMA
15 - ale_entries : Specifies No of entries ALE can hold
16 - bd_ram_size : Specifies internal descriptor RAM size
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| /linux/include/linux/ssb/ |
| H A D | ssb_driver_pci.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
15 #define SSB_PCICORE_CTL_RST 0x00000002 /* PCI_RESET driven out to pin */
17 #define SSB_PCICORE_CTL_CLK 0x00000008 /* Gate for clock driven out to pin */
26 #define SSB_PCICORE_ISTAT 0x0020 /* Interrupt status */
32 #define SSB_PCICORE_IMASK 0x0024 /* Interrupt mask */
122 return -ENODEV; in ssb_pcicore_plat_dev_init()
127 return -ENODEV; in ssb_pcicore_pcibios_map_irq()
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| /linux/Documentation/devicetree/bindings/timer/ |
| H A D | nxp,s32g2-stm.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/timer/nxp,s32g2-stm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Daniel Lezcano <daniel.lezcano@kernel.org>
14 software timing functions. STM includes a 32-bit count-up timer and four
15 32-bit compare channels with a separate interrupt source for each channel.
16 The timer is driven by the STM module clock divided by an 8-bit prescale
22 - const: nxp,s32g2-stm
23 - items:
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| /linux/Documentation/timers/ |
| H A D | highres.rst | 8 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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| /linux/Documentation/devicetree/bindings/misc/ |
| H A D | xlnx,sd-fec.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/misc/xlnx,sd-fec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Cvetic, Dragan <dragan.cvetic@amd.com>
11 - Erim, Salih <salih.erim@amd.com>
15 which provides high-throughput LDPC and Turbo Code implementations.
17 customer specified Quasi-cyclic (QC) codes. The Turbo decode functionality
23 const: xlnx,sd-fec-1.1
33 - description: Main processing clock for processing core
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| /linux/Documentation/devicetree/bindings/net/bluetooth/ |
| H A D | nxp,88w8987-bt.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/bluetooth/nxp,88w8987-bt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 This binding describes UART-attached NXP bluetooth chips. These chips
11 are dual-radio chips supporting WiFi and Bluetooth. The bluetooth
12 works on standard H4 protocol over 4-wire UART. The RTS and CTS lines
14 asserts break signal over UART-TX line to put the chip into power save
15 state. De-asserting break wakes up the BT chip.
18 - Neeraj Sanjay Kale <neeraj.sanjaykale@nxp.com>
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| /linux/Documentation/devicetree/bindings/interrupt-controller/ |
| H A D | ti,sci-intr.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/ti,sci-intr.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments K3 Interrupt Router
10 - Lokesh Vutla <lokeshvutla@ti.com>
13 - $ref: /schemas/arm/keystone/ti,k3-sci-common.yaml#
16 The Interrupt Router (INTR) module provides a mechanism to mux M
17 interrupt inputs to N interrupt outputs, where all M inputs are selectable
18 to be driven per N output. An Interrupt Router can either handle edge
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| /linux/Documentation/devicetree/bindings/display/imx/ |
| H A D | nxp,imx8mq-dcss.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/display/imx/nxp,imx8mq-dcss.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Laurentiu Palcu <laurentiu.palcu@nxp.com>
17 2.2) or MIPI-DSI. The DCSS is intended to support up to 4kp60 displays. HDR10
23 const: nxp,imx8mq-dcss
27 - description: DCSS base address and size, up to IRQ steer start
28 - description: DCSS BLKCTL base address and size
32 - description: Context loader completion and error interrupt
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| /linux/drivers/thermal/intel/ |
| H A D | intel_soc_dts_thermal.c | 1 // SPDX-License-Identifier: GPL-2.0-only
11 #include <linux/interrupt.h>
13 #include <asm/intel-family.h>
23 /* IRQ 86 is a fixed APIC interrupt for BYT DTS Aux threshold notifications */
51 return -ENODEV; in intel_soc_thermal_init()
61 soc_dts_thres_gsi = (int)match_cpu->driver_data; in intel_soc_thermal_init()
86 * interrupt driven. in intel_soc_thermal_init()
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| /linux/arch/arm64/boot/dts/marvell/ |
| H A D | armada-ap80x.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
9 #include <dt-bindings/thermal/thermal.h>
11 /dts-v1/;
14 #address-cells = <2>;
15 #size-cells = <2>;
25 compatible = "arm,psci-0.2";
29 reserved-memory {
30 #address-cells = <2>;
31 #size-cells = <2>;
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| /linux/Documentation/devicetree/bindings/spi/ |
| H A D | renesas,rspi.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Geert Uytterhoeven <geert+renesas@glider.be>
15 - items:
16 - enum:
17 - renesas,rspi-sh7757 # SH7757
18 - const: renesas,rspi # Legacy SH
20 - items:
21 - enum:
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| /linux/arch/arm64/boot/dts/amlogic/ |
| H A D | meson-gxm-s912-libretech-pc.dts | 1 // SPDX-License-Identifier: GPL-2.0
7 /dts-v1/;
9 #include "meson-gxm.dtsi"
10 #include "meson-gx-libretech-pc.dtsi"
13 compatible = "libretech,aml-s912-pc", "amlogic,s912",
14 "amlogic,meson-gxm";
15 model = "Libre Computer AML-S912-PC";
17 typec2_vbus: regulator-typec2-vbus {
18 compatible = "regulator-fixed";
19 regulator-name = "TYPEC2_VBUS";
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| /linux/Documentation/i2c/ |
| H A D | gpio-fault-injection.rst | 7 which is driven by the I2C bus master driver under test. The GPIO fault
12 'i2c-fault-injector' subdirectory in the Kernel debugfs filesystem, usually
14 driven I2C bus. Each subdirectory will contain files to trigger the fault
15 injection. They will be described now along with their intended use-cases.
21 -----
31 -----
56 --------------------------
68 -----------------------
90 bus arbitration against another master in a multi-master setup.
93 ------------------
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| /linux/drivers/iio/imu/ |
| H A D | adis_trigger.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
9 #include <linux/interrupt.h>
31 unsigned long direction = adis->irq_flag & IRQF_TRIGGER_MASK; in adis_validate_irq_flag()
33 /* We cannot mask the interrupt so ensure it's not enabled at request */ in adis_validate_irq_flag()
34 if (adis->data->unmasked_drdy) in adis_validate_irq_flag()
35 adis->irq_flag |= IRQF_NO_AUTOEN; in adis_validate_irq_flag()
39 * IMU devices with FIFO support have the watermark pin level driven in adis_validate_irq_flag()
46 adis->irq_flag |= IRQF_TRIGGER_RISING; in adis_validate_irq_flag()
49 direction != IRQF_TRIGGER_FALLING && !adis->data->has_fifo) { in adis_validate_irq_flag()
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| /linux/arch/arm/plat-orion/ |
| H A D | time.c | 2 * arch/arm/plat-orion/time.c
10 * Timer 0 is used as free-running clocksource, while timer 1 is
17 #include <linux/interrupt.h>
47 * SoC-specific data.
80 return -ETIME; in orion_clkevt_next_event()
85 * Clear and enable clockevent timer interrupt. in orion_clkevt_next_event()
121 /* Disable timer interrupt */ in orion_clkevt_shutdown()
125 /* ACK pending timer interrupt */ in orion_clkevt_shutdown()
141 writel(ticks_per_jiffy - 1, timer_base + TIMER1_RELOAD_OFF); in orion_clkevt_set_periodic()
142 writel(ticks_per_jiffy - 1, timer_base + TIMER1_VAL_OFF); in orion_clkevt_set_periodic()
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| /linux/arch/arm/mach-pxa/ |
| H A D | gumstix.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * arch/arm/mach-pxa/include/mach/gumstix.h
8 /* BTRESET - Reset line to Bluetooth module, active low signal. */
14 GPIOn - Input from MAX823 (or equiv), normalizing USB +5V into a clean
15 interrupt signal for determining cable presence. On the gumstix F,
18 /* GPIOx - Connects to USB D+ and used as a pull-up after GPIOn
19 has detected a cable insertion; driven low otherwise. */
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| /linux/arch/arm64/boot/dts/rockchip/ |
| H A D | rk3326-anbernic-rg351m.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 /dts-v1/;
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/input/input.h>
11 #include <dt-bindings/leds/common.h>
12 #include <dt-bindings/pinctrl/rockchip.h>
21 stdout-path = "serial2:115200n8";
25 compatible = "pwm-backlight";
26 power-supply = <&vcc_bl>;
31 * LED is a tri-state. Driven high it is red, driven low it is
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