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Searched +full:bcm2835 +full:- +full:pwm (Results 1 – 15 of 15) sorted by relevance

/linux/Documentation/devicetree/bindings/pwm/
H A Dpwm-bcm2835.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/pwm/pwm-bcm2835.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: BCM2835 PWM controller (Raspberry Pi controller)
10 - Stefan Wahren <stefan.wahren@i2se.com>
13 - $ref: pwm.yaml#
17 const: brcm,bcm2835-pwm
25 "#pwm-cells":
29 - compatible
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/linux/Documentation/devicetree/bindings/arm/bcm/
H A Draspberrypi,bcm2835-firmware.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eric Anholt <eric@anholt.net>
11 - Stefan Wahren <wahrenst@gmx.net>
17 const: raspberrypi,bcm2835-firmware
20 - compatible
25 - const: raspberrypi,bcm2835-firmware
26 - const: simple-mfd
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/linux/arch/arm/boot/dts/broadcom/
H A Dbcm283x.dtsi1 #include <dt-bindings/pinctrl/bcm2835.h>
2 #include <dt-bindings/clock/bcm2835.h>
3 #include <dt-bindings/clock/bcm2835-aux.h>
4 #include <dt-bindings/gpio/gpio.h>
5 #include <dt-bindings/interrupt-controller/irq.h>
6 #include <dt-bindings/soc/bcm2835-pm.h>
8 /* firmware-provided startup stubs live here, where the secondary CPUs are
14 * bcm2835 and bcm2836 implementations, leaving the CPU configuration to
15 * bcm2835.dtsi and bcm2836.dtsi.
19 compatible = "brcm,bcm2835";
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H A Dbcm2711.dtsi1 // SPDX-License-Identifier: GPL-2.0
4 #include <dt-bindings/interrupt-controller/arm-gic.h>
5 #include <dt-bindings/soc/bcm2835-pm.h>
10 #address-cells = <2>;
11 #size-cells = <1>;
13 interrupt-parent = <&gicv2>;
16 compatible = "brcm,bcm2711-vc5";
20 clk_27MHz: clk-27M {
21 #clock-cells = <0>;
22 compatible = "fixed-clock";
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H A Dbcm2835-rpi-b.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9512.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
11 compatible = "raspberrypi,model-b", "brcm,bcm2835";
22 * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
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H A Dbcm2835-rpi-b-plus.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9514.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
11 compatible = "raspberrypi,model-b-plus", "brcm,bcm2835";
22 * Taken from Raspberry-Pi-B-Plus-V1.2-Schematics.pdf
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H A Dbcm2835-rpi-b-rev2.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-smsc9512.dtsi"
8 #include "bcm283x-rpi-usb-host.dtsi"
11 compatible = "raspberrypi,model-b-rev2", "brcm,bcm2835";
22 * Taken from Raspberry-Pi-Rev-2.0-Model-AB-Schematics.pdf
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H A Dbcm2835-rpi-a.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-usb-host.dtsi"
10 compatible = "raspberrypi,model-a", "brcm,bcm2835";
21 * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
28 gpio-line-names = "SDA0",
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H A Dbcm2835-rpi-a-plus.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
3 #include "bcm2835.dtsi"
4 #include "bcm2835-rpi.dtsi"
5 #include "bcm2835-rpi-common.dtsi"
6 #include "bcm283x-rpi-led-deprecated.dtsi"
7 #include "bcm283x-rpi-usb-host.dtsi"
10 compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";
27 gpio-line-names = "ID_SDA",
84 pinctrl-names = "default";
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/linux/drivers/pwm/
H A Dpwm-bcm2835.c1 // SPDX-License-Identifier: GPL-2.0
12 #include <linux/pwm.h>
17 #define PWM_MODE 0x80 /* set timer in PWM mode */
37 static int bcm2835_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm) in bcm2835_pwm_request() argument
42 value = readl(pc->base + PWM_CONTROL); in bcm2835_pwm_request()
43 value &= ~(PWM_CONTROL_MASK << PWM_CONTROL_SHIFT(pwm->hwpwm)); in bcm2835_pwm_request()
44 value |= (PWM_MODE << PWM_CONTROL_SHIFT(pwm->hwpwm)); in bcm2835_pwm_request()
45 writel(value, pc->base + PWM_CONTROL); in bcm2835_pwm_request()
50 static void bcm2835_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm) in bcm2835_pwm_free() argument
55 value = readl(pc->base + PWM_CONTROL); in bcm2835_pwm_free()
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H A 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
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H A DMakefile1 # SPDX-License-Identifier: GPL-2.0
2 obj-$(CONFIG_PWM) += core.o
3 obj-$(CONFIG_PWM_AB8500) += pwm-ab8500.o
4 obj-$(CONFIG_PWM_ADP5585) += pwm-adp5585.o
5 obj-$(CONFIG_PWM_APPLE) += pwm-apple.o
6 obj-$(CONFIG_PWM_ATMEL) += pwm-atmel.o
7 obj-$(CONFIG_PWM_ATMEL_HLCDC_PWM) += pwm-atmel-hlcdc.o
8 obj-$(CONFIG_PWM_ATMEL_TCB) += pwm-atmel-tcb.o
9 obj-$(CONFIG_PWM_AXI_PWMGEN) += pwm-axi-pwmgen.o
10 obj-$(CONFIG_PWM_BCM_IPROC) += pwm-bcm-iproc.o
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H A Dpwm-raspberrypi-poe.c1 // SPDX-License-Identifier: GPL-2.0
5 * https://www.raspberrypi.org/products/poe-hat/
8 * - No disable bit, so a disabled PWM is simulated by duty_cycle 0
9 * - Only normal polarity
10 * - Fixed 12.5 kHz period
18 #include <linux/pwm.h>
20 #include <soc/bcm2835/raspberrypi-firmware.h>
21 #include <dt-bindings/pwm/raspberrypi,firmware-poe-pwm.h>
59 return -EIO; in raspberrypi_pwm_set_property()
77 return -EIO; in raspberrypi_pwm_get_property()
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/linux/drivers/clk/bcm/
H A Dclk-bcm2835.c1 // SPDX-License-Identifier: GPL-2.0+
8 * DOC: BCM2835 CPRMAN (clock manager for the "audio" domain)
27 #include <linux/clk-provider.h>
38 #include <dt-bindings/clock/bcm2835.h>
45 # define CM_DIV_FRAC_MASK GENMASK(CM_DIV_FRAC_BITS - 1, 0)
253 # define A2W_PLL_FRAC_MASK ((1 << A2W_PLL_FRAC_BITS) - 1)
337 writel(CM_PASSWORD | val, cprman->regs + reg); in cprman_write()
342 return readl(cprman->regs + reg); in cprman_read()
355 spin_lock(&cprman->regs_lock); in bcm2835_measure_tcnt_mux()
372 dev_err(cprman->dev, "timeout waiting for OSCCOUNT\n"); in bcm2835_measure_tcnt_mux()
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/linux/
H A DMAINTAINERS5 ---------------------------------------------------
21 W: *Web-page* with status/info
23 B: URI for where to file *bugs*. A web-page with detailed bug
28 patches to the given subsystem. This is either an in-tree file,
29 or a URI. See Documentation/maintainer/maintainer-entry-profile.rst
46 N: [^a-z]tegra all files whose path contains tegra
64 ----------------
83 3WARE SAS/SATA-RAID SCSI DRIVERS (3W-XXXX, 3W-9XXX, 3W-SAS)
85 L: linux-scsi@vger.kernel.org
88 F: drivers/scsi/3w-*
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