| /linux/drivers/clk/tegra/ |
| H A D | clk-divider.c | 1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <linux/clk-provider.h>
14 #define pll_out_override(p) (BIT((p->shift - 6)))
15 #define div_mask(d) ((1 << (d->width)) - 1)
16 #define get_mul(d) (1 << d->frac_width)
21 static int get_div(struct tegra_clk_frac_div *divider, unsigned long rate, in get_div() argument
26 div = div_frac_get(rate, parent_rate, divider->width, in get_div()
27 divider->frac_width, divider->flags); in get_div()
38 struct tegra_clk_frac_div *divider = to_clk_frac_div(hw); in clk_frac_div_recalc_rate() local
43 reg = readl_relaxed(divider->reg); in clk_frac_div_recalc_rate()
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| H A D | clk.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
9 #include <linux/clk-provider.h>
73 * struct tegra_clk_sync_source - external clock source from codec
75 * @hw: handle between common and hardware-specific interfaces
95 * struct tegra_clk_frac_div - fractional divider clock
97 * @hw: handle between common and hardware-specific interfaces
98 * @reg: register containing divider
99 * @flags: hardware-specific flags
100 * @shift: shift to the divider bit field
101 * @width: width of the divider bit field
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| /linux/drivers/clk/imx/ |
| H A D | clk-composite-8m.c | 1 // SPDX-License-Identifier: GPL-2.0
6 #include <linux/clk-provider.h>
31 struct clk_divider *divider = to_clk_divider(hw); in imx8m_clk_composite_divider_recalc_rate() local
36 prediv_value = readl(divider->reg) >> divider->shift; in imx8m_clk_composite_divider_recalc_rate()
37 prediv_value &= clk_div_mask(divider->width); in imx8m_clk_composite_divider_recalc_rate()
40 NULL, divider->flags, in imx8m_clk_composite_divider_recalc_rate()
41 divider->width); in imx8m_clk_composite_divider_recalc_rate()
43 div_value = readl(divider->reg) >> PCG_DIV_SHIFT; in imx8m_clk_composite_divider_recalc_rate()
47 divider->flags, PCG_DIV_WIDTH); in imx8m_clk_composite_divider_recalc_rate()
56 int ret = -EINVAL; in imx8m_clk_composite_compute_dividers()
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| H A D | clk-divider-gate.c | 1 // SPDX-License-Identifier: GPL-2.0+
7 #include <linux/clk-provider.h>
15 struct clk_divider divider; member
23 return container_of(div, struct clk_divider_gate, divider); in to_clk_divider_gate()
32 val = readl(div->reg) >> div->shift; in clk_divider_gate_recalc_rate_ro()
33 val &= clk_div_mask(div->width); in clk_divider_gate_recalc_rate_ro()
37 return divider_recalc_rate(hw, parent_rate, val, div->table, in clk_divider_gate_recalc_rate_ro()
38 div->flags, div->width); in clk_divider_gate_recalc_rate_ro()
49 spin_lock_irqsave(div->lock, flags); in clk_divider_gate_recalc_rate()
52 val = div_gate->cached_val; in clk_divider_gate_recalc_rate()
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| H A D | clk-fixup-div.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 #include <linux/clk-provider.h>
12 #define div_mask(d) ((1 << (d->width)) - 1)
15 * struct clk_fixup_div - imx integer fixup divider clock
16 * @divider: the parent class
20 * The imx fixup divider clock is a subclass of basic clk_divider
24 struct clk_divider divider; member
31 struct clk_divider *divider = to_clk_divider(hw); in to_clk_fixup_div() local
33 return container_of(divider, struct clk_fixup_div, divider); in to_clk_fixup_div()
41 return fixup_div->ops->recalc_rate(&fixup_div->divider.hw, parent_rate); in clk_fixup_div_recalc_rate()
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| H A D | clk-composite-93.c | 1 // SPDX-License-Identifier: GPL-2.0+
8 #include <linux/clk-provider.h>
52 if (gate->lock) in imx93_clk_composite_gate_endisable()
53 spin_lock_irqsave(gate->lock, flags); in imx93_clk_composite_gate_endisable()
55 reg = readl(gate->reg); in imx93_clk_composite_gate_endisable()
58 reg &= ~BIT(gate->bit_idx); in imx93_clk_composite_gate_endisable()
60 reg |= BIT(gate->bit_idx); in imx93_clk_composite_gate_endisable()
62 writel(reg, gate->reg); in imx93_clk_composite_gate_endisable()
64 imx93_clk_composite_wait_ready(hw, gate->reg); in imx93_clk_composite_gate_endisable()
66 if (gate->lock) in imx93_clk_composite_gate_endisable()
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| /linux/drivers/clk/ |
| H A D | clk-milbeaut.c | 1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/clk-provider.h>
17 #define CLKSEL(n) (((n) - 1) * 4 + M10V_CLKSEL1)
20 #define M10V_PLL1DIV2 "pll1-2"
22 #define M10V_PLL2DIV2 "pll2-2"
24 #define M10V_PLL6DIV2 "pll6-2"
25 #define M10V_PLL6DIV3 "pll6-3"
27 #define M10V_PLL7DIV2 "pll7-2"
28 #define M10V_PLL7DIV5 "pll7-5"
31 #define M10V_PLL10DIV2 "pll10-2"
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| /linux/drivers/clk/hisilicon/ |
| H A D | clkdivider-hi6220.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Hisilicon hi6220 SoC divider clock driver
11 #include <linux/clk-provider.h>
19 #define div_mask(width) ((1 << (width)) - 1)
22 * struct hi6220_clk_divider - divider clock for hi6220
24 * @hw: handle between common and hardware-specific interfaces
25 * @reg: register containing divider
26 * @shift: shift to the divider bit field
27 * @width: width of the divider bit field
28 * @mask: mask for setting divider rate
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| /linux/drivers/clk/rockchip/ |
| H A D | clk-half-divider.c | 1 // SPDX-License-Identifier: GPL-2.0
6 #include <linux/clk-provider.h>
11 #define div_mask(width) ((1 << (width)) - 1)
17 return abs(rate - now) < abs(rate - best); in _is_best_half_div()
25 struct clk_divider *divider = to_clk_divider(hw); in clk_half_divider_recalc_rate() local
28 val = readl(divider->reg) >> divider->shift; in clk_half_divider_recalc_rate()
29 val &= div_mask(divider->width); in clk_half_divider_recalc_rate()
54 bestdiv = (bestdiv - 3) / 2; in clk_half_divider_bestdiv()
60 * The maximum divider we can use without overflowing in clk_half_divider_bestdiv()
70 * parent rate, so return the divider immediately. in clk_half_divider_bestdiv()
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| /linux/drivers/clk/mxs/ |
| H A D | clk-div.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 #include <linux/clk-provider.h>
12 * struct clk_div - mxs integer divider clock
13 * @divider: the parent class
16 * @busy: busy bit shift
18 * The mxs divider clock is a subclass of basic clk_divider with an
22 struct clk_divider divider; member
30 struct clk_divider *divider = to_clk_divider(hw); in to_clk_div() local
32 return container_of(divider, struct clk_div, divider); in to_clk_div()
40 return div->ops->recalc_rate(&div->divider.hw, parent_rate); in clk_div_recalc_rate()
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| H A D | clk-frac.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 #include <linux/clk-provider.h>
13 * struct clk_frac - mxs fractional divider clock
14 * @hw: clk_hw for the fractional divider clock
16 * @shift: the divider bit shift
17 * @width: the divider bit width
18 * @busy: busy bit shift
20 * The clock is an adjustable fractional divider with a busy bit to wait
21 * when the divider is adjusted.
26 u8 shift; member
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| /linux/Documentation/devicetree/bindings/clock/ |
| H A D | keystone-pll.txt | 2 a divider and a post divider. The additional PLL IPs like ARMPLL, DDRPLL
9 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
12 - #clock-cells : from common clock binding; shall be set to 0.
13 - compatible : shall be "ti,keystone,main-pll-clock" or "ti,keystone,pll-clock"
14 - clocks : parent clock phandle
15 - reg - pll control0 and pll multiplier registers
16 - reg-names : control, multiplier and post-divider. The multiplier and
17 post-divider registers are applicable only for main pll clock
18 - fixed-postdiv : fixed post divider value. If absent, use clkod register bits
23 #clock-cells = <0>;
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| /linux/arch/arm/boot/dts/ti/omap/ |
| H A D | omap44xx-clocks.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only
9 #clock-cells = <0>;
10 compatible = "fixed-clock";
11 clock-output-names = "extalt_clkin_ck";
12 clock-frequency = <59000000>;
16 #clock-cells = <0>;
17 compatible = "fixed-clock";
18 clock-output-names = "pad_clks_src_ck";
19 clock-frequency = <12000000>;
23 #clock-cells = <0>;
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| H A D | omap54xx-clocks.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only
9 #clock-cells = <0>;
10 compatible = "fixed-clock";
11 clock-output-names = "pad_clks_src_ck";
12 clock-frequency = <12000000>;
16 #clock-cells = <0>;
17 compatible = "ti,gate-clock";
18 clock-output-names = "pad_clks_ck";
20 ti,bit-shift = <8>;
25 #clock-cells = <0>;
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| H A D | am43xx-clocks.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only
8 sys_clkin_ck: clock-sys-clkin-31@40 {
9 #clock-cells = <0>;
10 compatible = "ti,mux-clock";
11 clock-output-names = "sys_clkin_ck";
13 ti,bit-shift = <31>;
17 crystal_freq_sel_ck: clock-crystal-freq-sel-29@40 {
18 #clock-cells = <0>;
19 compatible = "ti,mux-clock";
20 clock-output-names = "crystal_freq_sel_ck";
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| /linux/drivers/clk/ti/ |
| H A D | divider.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * TI Divider Clock
7 * Tero Kristo <t-kristo@ti.com>
10 #include <linux/clk-provider.h>
26 for (clkt = table; clkt->div; clkt++) in _get_table_div()
27 if (clkt->val == val) in _get_table_div()
28 return clkt->div; in _get_table_div()
32 static void _setup_mask(struct clk_omap_divider *divider) in _setup_mask() argument
38 if (divider->table) { in _setup_mask()
41 for (clkt = divider->table; clkt->div; clkt++) in _setup_mask()
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| /linux/drivers/clk/keystone/ |
| H A D | pll.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Murali Karicheri <m-karicheri2@ti.com>
9 #include <linux/clk-provider.h>
26 * struct clk_pll_data - pll data structure
28 * register of pll controller, else it is in the pll_ctrl0((bit 11-6)
36 * @pllod: PLL register map address for post divider bits
40 * @pllm_upper_shift: multiplier upper shift
41 * @plld_mask: divider mask
42 * @clkod_mask: output divider mask
43 * @clkod_shift: output divider shift
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| /linux/drivers/clk/xilinx/ |
| H A D | clk-xlnx-clock-wizard.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2013 - 2021 Xilinx
14 #include <linux/clk-provider.h>
88 /* Divider limits, from UG572 Table 3-4 for Ultrascale+ */
112 #define div_mask(width) ((1 << (width)) - 1)
114 /* Extract divider instance from clock hardware instance */
125 * struct clk_wzrd - Clock wizard private data structure
148 * struct clk_wzrd_divider - clock divider specific to clk_wzrd
150 * @hw: handle between common and hardware-specific interfaces
151 * @base: base address of register containing the divider
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| /linux/drivers/clk/meson/ |
| H A D | clk-regmap.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
11 #include <linux/clk-provider.h>
15 * struct clk_regmap - regmap backed clock
17 * @hw: handle between common and hardware-specific interfaces
39 * struct clk_regmap_gate_data - regmap backed gate specific data
43 * @flags: hardware-specific flags
57 return (struct clk_regmap_gate_data *)clk->data; in clk_get_regmap_gate_data()
64 * struct clk_regmap_div_data - regmap backed adjustable divider specific data
66 * @offset: offset of the register controlling the divider
67 * @shift: shift to the divider bit field
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| /linux/drivers/clk/bcm/ |
| H A D | clk-kona.h | 1 /* 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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| H A D | clk-kona.c | 1 // SPDX-License-Identifier: GPL-2.0-only
7 #include "clk-kona.h"
12 #include <linux/clk-provider.h>
28 /* Produces a mask of set bits covering a range of a 32-bit value */
29 static inline u32 bitfield_mask(u32 shift, u32 width) in bitfield_mask() argument
31 return ((1 << width) - 1) << shift; in bitfield_mask()
35 static inline u32 bitfield_extract(u32 reg_val, u32 shift, u32 width) in bitfield_extract() argument
37 return (reg_val & bitfield_mask(shift, width)) >> shift; in bitfield_extract()
41 static inline u32 bitfield_replace(u32 reg_val, u32 shift, u32 width, u32 val) in bitfield_replace() argument
43 u32 mask = bitfield_mask(shift, width); in bitfield_replace()
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| /linux/drivers/clk/sprd/ |
| H A D | div.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 // Spreadtrum divider clock driver
14 * struct sprd_div_internal - Internal divider description
15 * @shift: Bit offset of the divider in its register
16 * @width: Width of the divider field in its register
18 * That structure represents a single divider, and is meant to be
24 u8 shift; member
31 .shift = _shift, \
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| /linux/drivers/clk/renesas/ |
| H A D | rzv2h-cpg.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
15 * struct pll - Structure for PLL configuration
43 * struct ddiv - Structure for dynamic switching divider
46 * @shift: position of the divider bit
47 * @width: width of the divider
49 * @no_rmw: flag to indicate if the register is read-modify-write
54 unsigned int shift:4; member
61 * On RZ/V2H(P), the dynamic divider clock supports up to 19 monitor bits,
63 * `0x1f` to indicate that monitor bits are not supported for static divider
71 .shift = _shift, \
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| /linux/drivers/clk/sunxi-ng/ |
| H A D | ccu_phase.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Maxime Ripard <maxime.ripard@free-electrons.com>
7 #include <linux/clk-provider.h>
22 reg = readl(phase->common.base + phase->common.reg); in ccu_phase_get_phase()
23 delay = (reg >> phase->shift); in ccu_phase_get_phase()
24 delay &= (1 << phase->width) - 1; in ccu_phase_get_phase()
32 return -EINVAL; in ccu_phase_get_phase()
37 return -EINVAL; in ccu_phase_get_phase()
42 return -EINVAL; in ccu_phase_get_phase()
47 return -EINVAL; in ccu_phase_get_phase()
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| /linux/drivers/clk/sunxi/ |
| H A D | clk-sunxi.c | 1 // 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"
27 * sun4i_get_pll1_factors() - calculates n, k, m, p factors for PLL1
38 div = req->rate / 6000000; in sun4i_get_pll1_factors()
39 req->rate = 6000000 * div; in sun4i_get_pll1_factors()
42 req->m = 0; in sun4i_get_pll1_factors()
45 if (req->rate >= 768000000 || req->rate == 42000000 || in sun4i_get_pll1_factors()
46 req->rate == 54000000) in sun4i_get_pll1_factors()
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