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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/pwm/
Dpwm-sifive.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/pwm/pwm-sifive.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: SiFive PWM controller
11 - Yash Shah <yash.shah@sifive.com>
12 - Sagar Kadam <sagar.kadam@sifive.com>
13 - Paul Walmsley <paul.walmsley@sifive.com>
16 Unlike most other PWM controllers, the SiFive PWM controller currently
17 only supports one period for all channels in the PWM. All PWMs need to
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/kernel/linux/linux-5.10/arch/riscv/boot/dts/sifive/
Dfu540-c000.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /* Copyright (c) 2018-2019 SiFive, Inc */
4 /dts-v1/;
6 #include <dt-bindings/clock/sifive-fu540-prci.h>
9 #address-cells = <2>;
10 #size-cells = <2>;
11 compatible = "sifive,fu540-c000", "sifive,fu540";
23 #address-cells = <1>;
24 #size-cells = <0>;
28 i-cache-block-size = <64>;
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Dhifive-unleashed-a00.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
2 /* Copyright (c) 2018-2019 SiFive, Inc */
4 #include "fu540-c000.dtsi"
5 #include <dt-bindings/gpio/gpio.h>
6 #include <dt-bindings/leds/common.h>
7 #include <dt-bindings/pwm/pwm.h>
13 #address-cells = <2>;
14 #size-cells = <2>;
16 compatible = "sifive,hifive-unleashed-a00", "sifive,fu540-c000";
19 stdout-path = "serial0";
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/kernel/linux/linux-5.10/drivers/pwm/
Dpwm-sifive.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2017-2018 SiFive
4 * For SiFive's PWM IP block documentation please refer Chapter 14 of
5 * Reference Manual : https://static.dev.sifive.com/FU540-C000-v1.0.pdf
8 * - When changing both duty cycle and period, we cannot prevent in
11 * - The hardware cannot generate a 100% duty cycle.
12 * - The hardware generates only inverted output.
18 #include <linux/pwm.h>
59 static int pwm_sifive_request(struct pwm_chip *chip, struct pwm_device *pwm) in pwm_sifive_request() argument
63 mutex_lock(&ddata->lock); in pwm_sifive_request()
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/kernel/linux/linux-5.10/drivers/tty/serial/
Dsifive.c1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (C) 2018-2019 SiFive
18 * - drivers/tty/serial/pxa.c
19 * - drivers/tty/serial/amba-pl011.c
20 * - drivers/tty/serial/uartlite.c
21 * - drivers/tty/serial/omap-serial.c
22 * - drivers/pwm/pwm-sifive.c
25 * - Chapter 19 "Universal Asynchronous Receiver/Transmitter (UART)" of
26 * SiFive FE310-G000 v2p3
27 * - The tree/master/src/main/scala/devices/uart directory of
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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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