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/linux/Documentation/devicetree/bindings/timer/
H A Dxlnx,xps-timer.yaml1 # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/timer/xlnx,xps-timer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Xilinx LogiCORE IP AXI Timer
10 - Sean Anderson <sean.anderson@seco.com>
15 const: xlnx,xps-timer-1.00.a
20 clock-names:
29 '#pwm-cells': true
31 xlnx,count-width:
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H A Dcdns,ttc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/timer/cdns,ttc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Cadence TTC - Triple Timer Counter
10 - Michal Simek <michal.simek@amd.com>
22 A list of 3 interrupts; one per timer channel.
27 power-domains:
30 timer-width:
33 Bit width of the timer, necessary if not 16.
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H A Dnxp,tpm-timer.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/timer/nxp,tpm-timer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NXP Low Power Timer/Pulse Width Modulation Module (TPM)
10 - Dong Aisheng <aisheng.dong@nxp.com>
13 The Timer/PWM Module (TPM) supports input capture, output compare,
18 the counter bus for the others, provided bit width is the same.
23 - const: fsl,imx7ulp-tpm
24 - items:
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/linux/drivers/pwm/
H A Dpwm-xilinx.c1 // SPDX-License-Identifier: GPL-2.0+
6 * - When changing both duty cycle and period, we may end up with one cycle
13 * - Cannot produce 100% duty cycle by configuring the TLRs. This might be
16 * - Only produces "normal" output.
17 * - Always produces low output if disabled.
20 #include <clocksource/timer-xilinx.h>
22 #include <linux/clk-provider.h>
37 WARN_ON(cycles < 2 || cycles - 2 > priv->max); in xilinx_timer_tlr_cycles()
40 return cycles - 2; in xilinx_timer_tlr_cycles()
41 return priv->max - cycles + 2; in xilinx_timer_tlr_cycles()
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H A Dpwm-dwc-core.c1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2018-2020 Intel Corporation
22 #include "pwm-dwc.h"
48 * Calculate width of low and high period in terms of input clock in __dwc_pwm_configure_timer()
52 tmp = DIV_ROUND_CLOSEST_ULL(state->duty_cycle, dwc->clk_ns); in __dwc_pwm_configure_timer()
54 return -ERANGE; in __dwc_pwm_configure_timer()
55 low = tmp - 1; in __dwc_pwm_configure_timer()
57 tmp = DIV_ROUND_CLOSEST_ULL(state->period - state->duty_cycle, in __dwc_pwm_configure_timer()
58 dwc->clk_ns); in __dwc_pwm_configure_timer()
60 return -ERANGE; in __dwc_pwm_configure_timer()
[all …]
/linux/drivers/clocksource/
H A Dtimer-sp804.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * linux/drivers/clocksource/timer-sp.c
5 * Copyright (C) 1999 - 2003 ARM Limited
24 #include "timer-sp.h"
26 /* Hisilicon 64-bit timer(a variant of ARM SP804) */
46 .width = 32,
57 .width = 64,
102 return ~readl_relaxed(sched_clkevt->value); in sp804_read()
115 return -EINVAL; in sp804_clocksource_and_sched_clock_init()
119 writel(0, clkevt->ctrl); in sp804_clocksource_and_sched_clock_init()
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H A Dtimer-stm32.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Inspired by time-efm32.c from Uwe Kleine-Koenig
23 #include "timer-of.h"
54 * stm32_timer_of_bits_set - set accessor helper
58 * Accessor helper to set the number of bits in the timer-of private
64 struct stm32_timer_private *pd = to->private_data; in stm32_timer_of_bits_set()
66 pd->bits = bits; in stm32_timer_of_bits_set()
70 * stm32_timer_of_bits_get - get accessor helper
73 * Accessor helper to get the number of bits in the timer-of private
80 struct stm32_timer_private *pd = to->private_data; in stm32_timer_of_bits_get()
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/linux/arch/riscv/boot/dts/canaan/
H A Dk210.dtsi1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2019-20 Sean Anderson <seanga2@gmail.com>
6 #include <dt-bindings/clock/k210-clk.h>
7 #include <dt-bindings/pinctrl/k210-fpioa.h>
8 #include <dt-bindings/reset/k210-rst.h>
12 * Although the K210 is a 64-bit CPU, the address bus is only 32-bits
15 #address-cells = <1>;
16 #size-cells = <1>;
17 compatible = "canaan,kendryte-k210";
21 * Since this is a non-ratified draft specification, the kernel does not
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/linux/arch/m68k/include/asm/
H A DMC68328.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* include/asm-m68knommu/MC68328.h: '328 control registers
8 * Based on include/asm-m68knommu/MC68332.h
26 * 0xFFFFF0xx -- System Control
36 #define SCR_WDTH8 0x01 /* 8-Bit Width Select */
39 #define SCR_BETEN 0x10 /* Bus-Error Time-Out Enable */
42 #define SCR_BETO 0x80 /* Bus-Error TimeOut */
52 * 0xFFFFF1xx -- Chip-Select logic
58 * 0xFFFFF2xx -- Phase Locked Loop (PLL) & Power Control
76 #define GRPBASE_GBA_MASK 0xfff0 /* Group Base Address (bits 31-20) */
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H A DMC68EZ328.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* include/asm-m68knommu/MC68EZ328.h: 'EZ328 control registers
8 * Based on include/asm-m68knommu/MC68332.h
27 * 0xFFFFF0xx -- System Control
37 #define SCR_WDTH8 0x01 /* 8-Bit Width Select */
40 #define SCR_BETEN 0x10 /* Bus-Error Time-Out Enable */
43 #define SCR_BETO 0x80 /* Bus-Error TimeOut */
53 * 0xFFFFF1xx -- Chip-Select logic
84 #define CSA_EN 0x0001 /* Chip-Select Enable */
85 #define CSA_SIZ_MASK 0x000e /* Chip-Select Size */
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H A DMC68VZ328.h1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* include/asm-m68knommu/MC68VZ328.h: 'VZ328 control registers
5 * Copyright (c) 2000-2001 Lineo Inc. <www.lineo.com>
6 * Copyright (c) 2000-2001 Lineo Canada Corp. <www.lineo.ca>
9 * Based on include/asm-m68knommu/MC68332.h
29 * 0xFFFFF0xx -- System Control
39 #define SCR_WDTH8 0x01 /* 8-Bit Width Select */
42 #define SCR_BETEN 0x10 /* Bus-Error Time-Out Enable */
45 #define SCR_BETO 0x80 /* Bus-Error TimeOut */
55 * 0xFFFFF1xx -- Chip-Select logic
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/linux/arch/arm/boot/dts/microchip/
H A Dat91-sam9_l9260.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91-sam9_l9260.dts - Device Tree file for Olimex SAM9-L9260 board
7 /dts-v1/;
11 model = "Olimex sam9-l9260";
12 compatible = "olimex,sam9-l9260", "atmel,at91sam9260", "atmel,at91sam9";
15 stdout-path = "serial0:115200n8";
24 clock-frequency = <32768>;
28 clock-frequency = <18432000>;
34 tcb0: timer@fffa0000 {
35 timer@0 {
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H A Dat91sam9260ek.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 /dts-v1/;
10 #include <dt-bindings/input/input.h>
17 stdout-path = &dbgu;
26 clock-frequency = <32768>;
30 clock-frequency = <18432000>;
36 tcb0: timer@fffa0000 {
37 timer@0 {
38 compatible = "atmel,tcb-timer";
42 timer@2 {
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H A Dat91sam9m10g45ek.dts1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91sam9m10g45ek.dts - Device Tree file for AT91SAM9M10G45-EK board
8 /dts-v1/;
10 #include <dt-bindings/pwm/pwm.h>
13 model = "Atmel AT91SAM9M10G45-EK";
18 stdout-path = "serial0:115200n8";
27 clock-frequency = <32768>;
31 clock-frequency = <12000000>;
41 tcb0: timer@fff7c000 {
42 timer@0 {
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H A Dsama5d3xcm.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * sama5d3xcm.dtsi - Device Tree Include file for SAMA5D3x CPU Module
14 stdout-path = "serial0:115200n8";
23 clock-frequency = <32768>;
27 clock-frequency = <12000000>;
34 cs-gpios = <&pioD 13 0>, <0>, <0>, <0>;
37 tcb0: timer@f0010000 {
38 timer@0 {
39 compatible = "atmel,tcb-timer";
43 timer@1 {
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H A Dpm9g45.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * pm9g45.dts - Device Tree file for Ronetix pm9g45 board
5 * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
7 /dts-v1/;
24 clock-frequency = <32768>;
28 clock-frequency = <12000000>;
40 pinctrl_nand_rb: nand-rb-0 {
47 pinctrl_board_mmc: mmc0-board {
54 tcb0: timer@fff7c000 {
55 timer@0 {
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H A Dat91-qil_a9260.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * at91-qil_a9260.dts - Device Tree file for Calao QIL A9260 board
5 * Copyright (C) 2011-2013 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
7 /dts-v1/;
11 compatible = "calao,qil-a9260", "atmel,at91sam9260", "atmel,at91sam9";
23 clock-frequency = <32768>;
27 clock-frequency = <12000000>;
33 tcb0: timer@fffa0000 {
34 timer@0 {
35 compatible = "atmel,tcb-timer";
[all …]
H A Dat91-cosino.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * at91-cosino.dtsi - Device Tree file for Cosino core module
5 * Copyright (C) 2013 - Rodolfo Giometti <giometti@linux.it>
29 clock-frequency = <32768>;
33 clock-frequency = <12000000>;
39 atmel,adc-ts-wires = <4>;
40 atmel,adc-ts-pressure-threshold = <10000>;
49 pinctrl-0 = <&pinctrl_ebi_addr_nand
51 pinctrl-names = "default";
54 nand-controller {
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H A Danimeo_ip.dts1 // SPDX-License-Identifier: GPL-2.0-only
3 * animeo_ip.dts - Device Tree file for Somfy Animeo IP Boards
5 * Copyright (C) 2011-2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
8 /dts-v1/;
13 compatible = "somfy,animeo-ip", "atmel,at91sam9260", "atmel,at91sam9";
26 stdout-path = &usart2;
35 clock-frequency = <32768>;
39 clock-frequency = <18432000>;
45 tcb0: timer@fffa0000 {
46 timer@0 {
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/linux/Documentation/devicetree/bindings/mmc/
H A Dsnps,dwcmshc-sdhci.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/mmc/snps,dwcmshc-sdhci.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Ulf Hansson <ulf.hansson@linaro.org>
11 - Jisheng Zhang <Jisheng.Zhang@synaptics.com>
16 - items:
17 - enum:
18 - rockchip,rk3528-dwcmshc
19 - rockchip,rk3562-dwcmshc
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/linux/tools/testing/selftests/kvm/arm64/
H A Darch_timer_edge_cases.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * arch_timer_edge_cases.c - Tests the aarch64 timer IRQ functionality.
5 * The test validates some edge cases related to the arch-timer:
6 * - timers above the max TVAL value.
7 * - timers in the past
8 * - moving counters ahead and behind pending timers.
9 * - reprograming timers.
10 * - timers fired multiple times.
11 * - masking/unmasking using the timer control mask.
25 /* Depends on counter width. */
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/linux/arch/arm64/boot/dts/altera/
H A Dsocfpga_stratix10.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
6 /dts-v1/;
7 #include <dt-bindings/reset/altr,rst-mgr-s10.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/clock/stratix10-clock.h>
12 compatible = "altr,socfpga-stratix10";
13 #address-cells = <2>;
14 #size-cells = <2>;
16 reserved-memory {
17 #address-cells = <2>;
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/linux/arch/arm64/boot/dts/intel/
H A Dsocfpga_agilex.dtsi1 // SPDX-License-Identifier: GPL-2.0
6 /dts-v1/;
7 #include <dt-bindings/reset/altr,rst-mgr-s10.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/interrupt-controller/arm-gic.h>
10 #include <dt-bindings/clock/agilex-clock.h>
13 compatible = "intel,socfpga-agilex";
14 #address-cells = <2>;
15 #size-cells = <2>;
17 reserved-memory {
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H A Dkeembay-soc.dtsi1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
8 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 interrupt-parent = <&gic>;
12 #address-cells = <2>;
13 #size-cells = <2>;
16 #address-cells = <1>;
17 #size-cells = <0>;
20 compatible = "arm,cortex-a53";
23 enable-method = "psci";
27 compatible = "arm,cortex-a53";
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/linux/drivers/media/i2c/cx25840/
H A Dcx25840-ir.c1 // SPDX-License-Identifier: GPL-2.0-or-later
13 #include <media/drv-intf/cx25840.h>
14 #include <media/rc-core.h>
16 #include "cx25840-core.h"
117 return state ? state->ir_state : NULL; in to_ir_state()
135 d--; in count_to_clock_divider()
193 * FIFO register pulse width count computations
199 * the pulse width counter as read from the FIFO. The two lsb's are in clock_divider_to_resolution()
212 * The 2 lsb's of the pulse width timer count are not readable, hence in pulse_width_count_to_ns()
231 * The 2 lsb's of the pulse width timer count are not accessible, hence
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