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/linux/arch/mips/bcm63xx/
H A Dclk.c23 unsigned int rate; member
33 if (clk->set && (clk->usage++) == 0) in clk_enable_unlocked()
34 clk->set(clk, 1); in clk_enable_unlocked()
39 if (clk->set && (--clk->usage) == 0) in clk_disable_unlocked()
40 clk->set(clk, 0); in clk_disable_unlocked()
56 * Ethernet MAC "misc" clock: dma clocks and main clock on 6348
79 * Ethernet MAC clocks: only relevant on 6358, silently enable misc
80 * clocks
92 if (clk->id == 0) in enetx_set()
355 .rate = (50 * 1000 * 1000),
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/linux/drivers/clk/qcom/
H A Dipq-cmn-pll.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2024-2025 Qualcomm Innovation Center, Inc. All rights reserved.
7 * CMN PLL block expects the reference clock from on-board Wi-Fi block,
8 * and supplies fixed rate clocks as output to the networking hardware
13 * On the IPQ9574 SoC, there are three clocks with 50 MHZ and one clock
15 * and one clock with 353 MHZ to PPE. The other fixed rate output clocks
21 * clocks from CMN PLL on IPQ5424 are the same as IPQ9574.
23 * +---------+
25 * +--+---+--+
28 * +-------+---+------+
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H A Dcommon.c1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2013-2014, The Linux Foundation. All rights reserved.
10 #include <linux/clk-provider.h>
11 #include <linux/interconnect-clk.h>
13 #include <linux/reset-controller.h>
17 #include "clk-alpha-pll.h"
18 #include "clk-branch.h"
19 #include "clk-rcg.h"
20 #include "clk-regmap.h"
32 struct freq_tbl *qcom_find_freq(const struct freq_tbl *f, unsigned long rate) in qcom_find_freq() argument
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/linux/drivers/clk/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
59 Low-Noise JESD204B Compliant Clock Jitter Cleaner With Dual Loop PLLs
67 generators of audio clocks.
87 These multi-function devices have two fixed-rate oscillators, clocked at 32KHz each.
91 tristate "Raspberry Pi RP1-based clock support"
96 This multi-function device has 3 main PLLs and several clock
97 generators to drive the internal sub-peripherals.
106 multi-function device has one fixed-rate oscillator, clocked
113 This driver provides support for clocks that are controlled
123 This driver provides support for clocks that are controlled
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H A Dclk-ep93xx.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Based on a rewrite of arch/arm/mach-ep93xx/clock.c:
13 #include <linux/clk-provider.h>
20 #include <dt-bindings/clock/cirrus,ep9301-syscon.h>
94 struct clk_hw *fixed[EP93XX_FIXED_CLK_COUNT]; member
105 return container_of(clk, struct ep93xx_clk_priv, reg[clk->idx]); in ep93xx_priv_from()
110 struct ep93xx_regmap_adev *aux = priv->aux_dev; in ep93xx_clk_write()
112 aux->write(aux->map, aux->lock, reg, val); in ep93xx_clk_write()
121 regmap_read(priv->map, clk->reg, &val); in ep93xx_clk_is_enabled()
123 return !!(val & BIT(clk->bit_idx)); in ep93xx_clk_is_enabled()
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/linux/Documentation/devicetree/bindings/sound/
H A Dnvidia,tegra20-i2s.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/nvidia,tegra20-i2s.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
15 - Thierry Reding <treding@nvidia.com>
16 - Jon Hunter <jonathanh@nvidia.com>
20 const: nvidia,tegra20-i2s
28 reset-names:
34 clocks:
40 dma-names:
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H A Dnvidia,tegra20-spdif.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/sound/nvidia,tegra20-spdif.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
16 - Thierry Reding <treding@nvidia.com>
17 - Jon Hunter <jonathanh@nvidia.com>
20 - $ref: dai-common.yaml#
24 const: nvidia,tegra20-spdif
35 clocks:
38 clock-names:
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/linux/Documentation/devicetree/bindings/clock/
H A Dfixed-factor-clock.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/clock/fixed-factor-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Simple fixed factor rate clock sources
10 - Michael Turquette <mturquette@baylibre.com>
11 - Stephen Boyd <sboyd@kernel.org>
16 - description:
17 If the frequency is fixed, the preferred name is 'clock-<freq>' with
19 pattern: "^clock-([0-9]+|[0-9a-z-]+)$"
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H A Dsamsung,s5pv210-audss-clock.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/samsung,s5pv210-audss-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
12 - Sylwester Nawrocki <s.nawrocki@samsung.com>
13 - Tomasz Figa <tomasz.figa@gmail.com>
16 All available clocks are defined as preprocessor macros in
17 include/dt-bindings/clock/s5pv210-audss.h header.
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H A Dsamsung,s5pv210-clock.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/samsung,s5pv210-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
12 - Sylwester Nawrocki <s.nawrocki@samsung.com>
13 - Tomasz Figa <tomasz.figa@gmail.com>
16 Expected external clocks, defined in DTS as fixed-rate clocks with a matching
18 - "xxti" - external crystal oscillator connected to XXTI and XXTO pins of
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H A Dcanaan,k210-clk.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/canaan,k210-clk.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Damien Le Moal <dlemoal@kernel.org>
13 Canaan Kendryte K210 SoC clocks driver bindings. The clock
18 - dt-bindings/clock/k210-clk.h
22 const: canaan,k210-clk
24 clocks:
27 Phandle of the SoC 26MHz fixed-rate oscillator clock.
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H A Dsamsung,exynos5410-clock.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/clock/samsung,exynos5410-clock.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Chanwoo Choi <cw00.choi@samsung.com>
11 - Krzysztof Kozlowski <krzk@kernel.org>
12 - Sylwester Nawrocki <s.nawrocki@samsung.com>
13 - Tomasz Figa <tomasz.figa@gmail.com>
16 Expected external clocks, defined in DTS as fixed-rate clocks with a matching
18 - "fin_pll" - PLL input clock from XXTI
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H A Drenesas,9series.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Renesas 9-series I2C PCIe clock generators
10 The Renesas 9-series are I2C PCIe clock generators providing
11 from 1 to 20 output clocks.
16 - 9FGV0241:
17 0 -- DIF0
18 1 -- DIF1
19 - 9FGV0441:
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H A Dbaikal,bt1-ccu-pll.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/clock/baikal,bt1-ccu-pll.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Baikal-T1 Clock Control Unit PLL
11 - Serge Semin <fancer.lancer@gmail.com>
14 Clocks Control Unit is the core of Baikal-T1 SoC System Controller
16 connected with an external fixed rate oscillator, which signal is transformed
17 into clocks of various frequencies and then propagated to either individual
18 IP-blocks or to groups of blocks (clock domains). The transformation is done
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/linux/drivers/clk/davinci/
H A Dpll.c1 // SPDX-License-Identifier: GPL-2.0
7 * Based on arch/arm/mach-davinci/clock.c
8 * Copyright (C) 2006-2007 Texas Instruments.
9 * Copyright (C) 2008-2009 Deep Root Systems, LLC
12 #include <linux/clk-provider.h>
78 * OMAP-L138 system reference guide recommends a wait for 4 OSCIN/CLKIN
85 /* From OMAP-L138 datasheet table 6-4. Units are micro seconds */
89 * From OMAP-L138 datasheet table 6-4; assuming prediv = 1, sqrt(pllm) = 4
95 * struct davinci_pll_clk - Main PLL clock (aka PLLOUT)
117 unsigned long rate = parent_rate; in davinci_pll_recalc_rate() local
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/linux/drivers/clk/sunxi/
H A Dclk-sunxi.c1 // SPDX-License-Identifier: GPL-2.0-or-later
9 #include <linux/clk-provider.h>
14 #include <linux/reset-controller.h>
19 #include "clk-factors.h"
23 /* Maximum number of parents our clocks have */
27 * sun4i_get_pll1_factors() - calculates n, k, m, p factors for PLL1
28 * PLL1 rate is calculated as follows
29 * rate = (parent_rate * n * (k + 1) >> p) / (m + 1);
38 div = req->rate / 6000000; in sun4i_get_pll1_factors()
39 req->rate = 6000000 * div; in sun4i_get_pll1_factors()
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/linux/Documentation/devicetree/bindings/net/
H A Dqcom,ipq4019-mdio.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/net/qcom,ipq4019-mdio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Robert Marko <robert.marko@sartura.hr>
15 - enum:
16 - qcom,ipq4019-mdio
17 - qcom,ipq5018-mdio
19 - items:
20 - enum:
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/linux/drivers/clk/imgtec/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
7 Enable this to support the system & CPU clocks on the MIPS Boston
9 fixed rate clocks whose rate is determined by reading a platform
/linux/drivers/clk/bcm/
H A Dclk-kona.h1 /* SPDX-License-Identifier: GPL-2.0-only */
16 #include <linux/clk-provider.h>
24 #define BAD_CLK_NAME ((const char *)-1)
33 #define FLAG_SET(obj, type, flag) ((obj)->flags |= FLAG(type, flag))
34 #define FLAG_CLEAR(obj, type, flag) ((obj)->flags &= ~(FLAG(type, flag)))
35 #define FLAG_FLIP(obj, type, flag) ((obj)->flags ^= FLAG(type, flag))
36 #define FLAG_TEST(obj, type, flag) (!!((obj)->flags & FLAG(type, flag)))
40 #define ccu_policy_exists(ccu_policy) ((ccu_policy)->enable.offset != 0)
44 #define policy_exists(policy) ((policy)->offset != 0)
55 #define hyst_exists(hyst) ((hyst)->offset != 0)
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/linux/include/dt-bindings/clock/
H A Dstratix10-clock.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 /* fixed rate clocks */
15 /* fixed factor clocks */
21 /* PLL clocks */
26 /* Periph clocks */
61 /* Gate clocks */
H A Dagilex-clock.h1 /* SPDX-License-Identifier: GPL-2.0 */
9 /* fixed rate clocks */
16 /* PLL clocks */
31 /* fixed factor clocks */
45 /* Gate clocks */
H A Dintel,agilex5-clkmgr.h1 /* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
9 /* fixed rate clocks */
15 /* PLL clocks */
33 /* fixed factor clocks */
47 /* Gate clocks */
/linux/arch/arm/boot/dts/ti/omap/
H A Dam33xx-clocks.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
8 sys_clkin_ck: clock-sys-clkin-22@40 {
9 #clock-cells = <0>;
10 compatible = "ti,mux-clock";
11 clock-output-names = "sys_clkin_ck";
12 clocks = <&virt_19200000_ck>, <&virt_24000000_ck>, <&virt_25000000_ck>, <&virt_26000000_ck>;
13 ti,bit-shift = <22>;
17 adc_tsc_fck: clock-adc-tsc-fck {
18 #clock-cells = <0>;
19 compatible = "fixed-factor-clock";
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H A Domap3xxx-clocks.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
9 #clock-cells = <0>;
10 compatible = "fixed-clock";
11 clock-frequency = <16800000>;
15 #clock-cells = <0>;
16 compatible = "ti,mux-clock";
17 …clocks = <&virt_12m_ck>, <&virt_13m_ck>, <&virt_19200000_ck>, <&virt_26000000_ck>, <&virt_38_4m_ck…
22 #clock-cells = <0>;
23 compatible = "ti,divider-clock";
24 clocks = <&osc_sys_ck>;
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H A Domap36xx-am35xx-omap3430es2plus-clocks.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
9 #clock-cells = <0>;
10 compatible = "fixed-factor-clock";
11 clocks = <&corex2_fck>;
12 clock-mult = <1>;
13 clock-div = <3>;
17 #clock-cells = <0>;
18 compatible = "fixed-factor-clock";
19 clocks = <&corex2_fck>;
20 clock-mult = <1>;
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