| /u-boot/doc/device-tree-bindings/pwm/ |
| A D | pwm.txt | 1 Specifying PWM information for devices
4 1) PWM user nodes
7 PWM users should specify a list of PWM devices that they want to use
12 pwm-phandle : phandle to PWM controller node
13 pwm-specifier : array of #pwm-cells specifying the given PWM
16 PWM properties should be named "pwms". The exact meaning of each pwms
43 pwm-specifier typically encodes the chip-relative PWM number and the PWM
48 - PWM_POLARITY_INVERTED: invert the PWM signal polarity
50 Example with optional PWM specifier for inverse polarity
57 2) PWM controller nodes
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| A D | pwm-sifive.txt | 1 SiFive PWM controller
3 Unlike most other PWM controllers, the SiFive PWM controller currently only
4 supports one period for all channels in the PWM. All PWMs need to run at
7 PWM RTL that corresponds to the IP block version numbers can be found
15 PWM v0 as integrated onto the SiFive FU540 chip, and "sifive,pwm0" for the
16 SiFive PWM v0 IP block with no chip integration tweaks.
18 - clocks: Should contain a clock identifier for the PWM's parent clock.
20 - interrupts: one interrupt per PWM channel
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| A D | tegra20-pwm.txt | 8 - #pwm-cells: On Tegra the number of cells used to specify a PWM is 2. The
9 first cell specifies the per-chip index of the PWM to use and the second
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| /u-boot/drivers/pwm/ |
| A D | Kconfig | 2 bool "Enable support for pulse-width modulation devices (PWM)"
13 bool "Enable support for the Exynos PWM"
22 bool "Enable support for i.MX27 and later PWM"
24 This PWM is found i.MX27 and later i.MX SoCs.
27 bool "Enable support for Amlogic Meson SoCs PWM"
34 bool "Enable support for MediaTek PWM"
41 bool "Enable support for the Rockchip PWM"
50 bool "Enable support for the sandbox PWM"
58 bool "Enable support for SiFive PWM"
64 bool "Enable support for the Tegra PWM"
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| /u-boot/doc/device-tree-bindings/timer/ |
| A D | atcpit100_timer.txt | 7 used as pulse width modulators (PWM) as well as simple timers.
14 One 16-bit PWM
15 One 16-bit timer and one 8-bit PWM
16 Two 8-bit timer and one 8-bit PWM
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| /u-boot/arch/arm/mach-mediatek/ |
| A D | Kconfig | 21 including UART, SPI, USB3.0, SD and MMC cards, NAND, SNFI, PWM, PCIe,
33 I2S, PCM, S/PDIF, UART, SPI, I2C, IR TX/RX, and PWM.
43 switch, USB3.0, PCIe, UART, SPI, I2C and PWM.
51 including UART, SPI, USB2.0 and OTG, SD and MMC cards, NAND, PWM,
60 including UART, SPI, USB2.0 and OTG, SD and MMC cards, NAND, PWM,
69 including UART, SPI, USB2.0 and OTG, SD and MMC cards, NAND, PWM,
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| /u-boot/arch/arm/dts/ |
| A D | sun50i-a64-pinephone-1.1.dts | 16 * PWM backlight circuit on this PinePhone revision was changed since
17 * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight
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| A D | sun50i-a64-pinephone-1.2.dts | 16 * PWM backlight circuit on this PinePhone revision was changed since 1.0,
17 * and the lowest PWM duty cycle that doesn't lead to backlight being off
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| A D | exynos5420-peach-pit.dts | 162 * [6]PWM function control by
163 * DPCD0040f[7], default is PWM
193 /* DPCD720 Select internal PWM */
196 * FFh for 100% PWM of brightness, 0h for 0%
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| A D | imx6ull-colibri.dtsi | 147 /* PWM <A> */
154 /* PWM <B> */
161 /* PWM <C> */
168 /* PWM <D> */
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| A D | twl6030.dtsi | 95 /* provides one PWM (id 0 for Charging indicator LED) */
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| A D | rk3399-nanopc-t4.dts | 59 * With 20KHz PWM and an EVERCOOL EC4007H12SA fan, these levels
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| A D | tegra20-colibri.dts | 123 /* PWM<A> */
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| A D | am335x-brxre1.dts | 322 &timer4 { /* used for PWM beeper */
328 &timer5 { /* used for PWM backlight */
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| /u-boot/arch/x86/include/asm/arch-apollolake/acpi/ |
| A D | lpss.asl | 9 /* LPIO1 PWM */
10 Device(PWM) {
12 Name (_DDN, "Intel(R) PWM Controller")
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| /u-boot/board/friendlyarm/ |
| A D | Kconfig | 13 bool "PWM"
15 This enables LCD-Backlight control via PWM.
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| /u-boot/doc/device-tree-bindings/video/ |
| A D | intel-gma.txt | 23 - intel,cpu-backlight : Value for CPU Backlight PWM
24 - intel,pch-backlight : Value for PCH Backlight PWM
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| /u-boot/drivers/bus/ |
| A D | Kconfig | 12 PWM Subsystem driver support for AM33xx SOC.
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| /u-boot/arch/arm/mach-tegra/tegra20/ |
| A D | pinmux.c | 303 PINP(GPU, PWM, UARTA, GMI, RSVD4, GPSLXAU),
322 PIN(SDC, PWM, TWC, SDIO3, SPI3),
323 PIN(SDD, UARTA, PWM, SDIO3, SPI3),
346 PIN(UCB, UARTC, PWM, GMI, RSVD4),
411 PINP(SDB, UARTA, PWM, SDIO3, SPI2, NONE),
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| /u-boot/doc/device-tree-bindings/video/bridge/ |
| A D | ps8622.txt | 13 - use-external-pwm: backlight will be controlled by an external PWM
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| /u-boot/drivers/timer/ |
| A D | atcpit100_timer.c | 46 #define PWM 4 macro
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| /u-boot/drivers/pinctrl/mscc/ |
| A D | pinctrl-ocelot.c | 109 MSCC_P(21, RECO_CLK1, PWM, NONE);
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| A D | pinctrl-luton.c | 82 MSCC_P(29, PWM, NONE, NONE);
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| A D | pinctrl-serval.c | 101 MSCC_P(5, PWM, NONE, NONE);
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| /u-boot/drivers/power/regulator/ |
| A D | Kconfig | 92 bool "Enable driver for PWM regulators"
95 Enable support for the PWM regulator functions which voltage are
96 controlled by PWM duty ratio. Some of Rockchip board using this kind
102 bool "Enable Driver for PWM regulators in SPL"
106 features for PWM regulators in SPL.
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