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/kernel/linux/linux-4.19/Documentation/devicetree/bindings/mfd/
Dstm32-lptimer.txt1 STMicroelectronics STM32 Low-Power Timer
3 The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several
5 - PWM output (with programmable prescaler, configurable polarity)
6 - Quadrature encoder, counter
7 - Trigger source for STM32 ADC/DAC (LPTIM_OUT)
10 - compatible: Must be "st,stm32-lptimer".
11 - reg: Offset and length of the device's register set.
12 - clocks: Phandle to the clock used by the LP Timer module.
13 - clock-names: Must be "mux".
14 - #address-cells: Should be '<1>'.
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/kernel/linux/linux-4.19/Documentation/devicetree/bindings/pwm/
Dpwm-stm32-lp.txt1 STMicroelectronics STM32 Low-Power Timer PWM
3 STM32 Low-Power Timer provides single channel PWM.
5 Must be a sub-node of an STM32 Low-Power Timer device tree node.
6 See ../mfd/stm32-lptimer.txt for details about the parent node.
9 - compatible: Must be "st,stm32-pwm-lp".
10 - #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells
11 bindings defined in pwm.txt.
14 - pinctrl-names: Set to "default".
15 - pinctrl-0: Phandle pointing to pin configuration node for PWM.
19 compatible = "st,stm32-lptimer";
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/kernel/linux/linux-4.19/drivers/pwm/
Dpwm-stm32-lp.c1 // SPDX-License-Identifier: GPL-2.0
3 * STM32 Low-Power Timer PWM driver
9 * Inspired by Gerald Baeza's pwm-stm32 driver
13 #include <linux/mfd/stm32-lptimer.h>
17 #include <linux/pwm.h>
30 /* STM32 Low-Power Timer is preceded by a configurable power-of-2 prescaler */
33 static int stm32_pwm_lp_apply(struct pwm_chip *chip, struct pwm_device *pwm, in stm32_pwm_lp_apply() argument
43 pwm_get_state(pwm, &cstate); in stm32_pwm_lp_apply()
46 if (!state->enabled) { in stm32_pwm_lp_apply()
48 /* Disable LP timer */ in stm32_pwm_lp_apply()
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DKconfig1 menuconfig PWM config
2 bool "Pulse-Width Modulation (PWM) Support"
4 Generic Pulse-Width Modulation (PWM) support.
6 In Pulse-Width Modulation, a variation of the width of pulses
13 This framework provides a generic interface to PWM devices
15 to register and unregister a PWM chip, an abstraction of a PWM
16 controller, that supports one or more PWM devices. Client
17 drivers can request PWM devices and use the generic framework
20 This generic framework replaces the legacy PWM framework which
29 if PWM
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DMakefile1 # SPDX-License-Identifier: GPL-2.0
2 obj-$(CONFIG_PWM) += core.o
3 obj-$(CONFIG_PWM_SYSFS) += sysfs.o
4 obj-$(CONFIG_PWM_AB8500) += pwm-ab8500.o
5 obj-$(CONFIG_PWM_ATMEL) += pwm-atmel.o
6 obj-$(CONFIG_PWM_ATMEL_HLCDC_PWM) += pwm-atmel-hlcdc.o
7 obj-$(CONFIG_PWM_ATMEL_TCB) += pwm-atmel-tcb.o
8 obj-$(CONFIG_PWM_BCM_IPROC) += pwm-bcm-iproc.o
9 obj-$(CONFIG_PWM_BCM_KONA) += pwm-bcm-kona.o
10 obj-$(CONFIG_PWM_BCM2835) += pwm-bcm2835.o
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/kernel/linux/linux-5.10/drivers/pwm/
Dpwm-stm32-lp.c1 // SPDX-License-Identifier: GPL-2.0
3 * STM32 Low-Power Timer PWM driver
9 * Inspired by Gerald Baeza's pwm-stm32 driver
13 #include <linux/mfd/stm32-lptimer.h>
18 #include <linux/pwm.h>
31 /* STM32 Low-Power Timer is preceded by a configurable power-of-2 prescaler */
34 static int stm32_pwm_lp_apply(struct pwm_chip *chip, struct pwm_device *pwm, in stm32_pwm_lp_apply() argument
44 pwm_get_state(pwm, &cstate); in stm32_pwm_lp_apply()
47 if (!state->enabled) { in stm32_pwm_lp_apply()
49 /* Disable LP timer */ in stm32_pwm_lp_apply()
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DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
2 menuconfig PWM config
3 bool "Pulse-Width Modulation (PWM) Support"
5 Generic Pulse-Width Modulation (PWM) support.
7 In Pulse-Width Modulation, a variation of the width of pulses
14 This framework provides a generic interface to PWM devices
16 to register and unregister a PWM chip, an abstraction of a PWM
17 controller, that supports one or more PWM devices. Client
18 drivers can request PWM devices and use the generic framework
21 This generic framework replaces the legacy PWM framework which
[all …]
DMakefile1 # SPDX-License-Identifier: GPL-2.0
2 obj-$(CONFIG_PWM) += core.o
3 obj-$(CONFIG_PWM_SYSFS) += sysfs.o
4 obj-$(CONFIG_PWM_AB8500) += pwm-ab8500.o
5 obj-$(CONFIG_PWM_ATMEL) += pwm-atmel.o
6 obj-$(CONFIG_PWM_ATMEL_HLCDC_PWM) += pwm-atmel-hlcdc.o
7 obj-$(CONFIG_PWM_ATMEL_TCB) += pwm-atmel-tcb.o
8 obj-$(CONFIG_PWM_BCM_IPROC) += pwm-bcm-iproc.o
9 obj-$(CONFIG_PWM_BCM_KONA) += pwm-bcm-kona.o
10 obj-$(CONFIG_PWM_BCM2835) += pwm-bcm2835.o
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/mfd/
Dst,stm32-lptimer.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mfd/st,stm32-lptimer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 Low-Power Timers bindings
10 The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several
12 - PWM output (with programmable prescaler, configurable polarity)
13 - Trigger source for STM32 ADC/DAC (LPTIM_OUT)
14 - Several counter modes:
15 - quadrature encoder to detect angular position and direction of rotary
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/kernel/linux/linux-4.19/arch/arm/boot/dts/
Dstm32h743.dtsi2 * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
4 * This file is dual-licensed: you can use it either under the terms
44 #include "armv7-m.dtsi"
45 #include <dt-bindings/clock/stm32h7-clks.h>
46 #include <dt-bindings/mfd/stm32h7-rcc.h>
47 #include <dt-bindings/interrupt-controller/irq.h>
51 clk_hse: clk-hse {
52 #clock-cells = <0>;
53 compatible = "fixed-clock";
54 clock-frequency = <0>;
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Dstm32mp157c.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) STMicroelectronics 2017 - All Rights Reserved
6 #include <dt-bindings/interrupt-controller/arm-gic.h>
7 #include <dt-bindings/clock/stm32mp1-clks.h>
8 #include <dt-bindings/reset/stm32mp1-resets.h>
11 #address-cells = <1>;
12 #size-cells = <1>;
15 #address-cells = <1>;
16 #size-cells = <0>;
19 compatible = "arm,cortex-a7";
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/kernel/linux/linux-5.10/arch/arm/boot/dts/
Dstm32h743.dtsi2 * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
4 * This file is dual-licensed: you can use it either under the terms
43 #include "armv7-m.dtsi"
44 #include <dt-bindings/clock/stm32h7-clks.h>
45 #include <dt-bindings/mfd/stm32h7-rcc.h>
46 #include <dt-bindings/interrupt-controller/irq.h>
49 #address-cells = <1>;
50 #size-cells = <1>;
53 clk_hse: clk-hse {
54 #clock-cells = <0>;
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Dstm32mp151.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) STMicroelectronics 2017 - All Rights Reserved
6 #include <dt-bindings/interrupt-controller/arm-gic.h>
7 #include <dt-bindings/clock/stm32mp1-clks.h>
8 #include <dt-bindings/reset/stm32mp1-resets.h>
11 #address-cells = <1>;
12 #size-cells = <1>;
15 #address-cells = <1>;
16 #size-cells = <0>;
19 compatible = "arm,cortex-a7";
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/kernel/linux/linux-4.19/
DMAINTAINERS28 'diff -u' to make the patch easy to merge. Be prepared to get your
38 See Documentation/process/coding-style.rst for guidance here.
44 See Documentation/process/submitting-patches.rst for details.
55 include a Signed-off-by: line. The current version of this
57 Documentation/process/submitting-patches.rst.
68 that the bug would present a short-term risk to other users if it
84 W: Web-page with status/info
85 B: URI for where to file bugs. A web-page with detailed bug
109 N: [^a-z]tegra all files whose path contains the word tegra
137 -----------------------------------
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/kernel/linux/linux-5.10/
DMAINTAINERS9 -------------------------
30 ``diff -u`` to make the patch easy to merge. Be prepared to get your
40 See Documentation/process/coding-style.rst for guidance here.
46 See Documentation/process/submitting-patches.rst for details.
57 include a Signed-off-by: line. The current version of this
59 Documentation/process/submitting-patches.rst.
70 that the bug would present a short-term risk to other users if it
76 Documentation/admin-guide/security-bugs.rst for details.
81 ---------------------------------------------------
97 W: *Web-page* with status/info
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