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Message-ID: <eaf1d6f2-8a2d-d919-1f5c-57025c6e9235@amlogic.com>
Date: Tue, 10 Oct 2023 14:06:07 +0800
From: Xianwei Zhao <xianwei.zhao@...ogic.com>
To: Jerome Brunet <jbrunet@...libre.com>,
linux-arm-kernel@...ts.infradead.org,
linux-amlogic@...ts.infradead.org, linux-clk@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Neil Armstrong <neil.armstrong@...aro.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Kevin Hilman <khilman@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Subject: Re: [PATCH 3/4] clk: meson: C3: add support for the C3 SoC PLL clock
Hi Jerome,
Thanks for your advise, I will delete marco definition in next
version.
On 2023/10/3 20:55, Jerome Brunet wrote:
> [ EXTERNAL EMAIL ]
>
> On Thu 28 Sep 2023 at 14:34, Xianwei Zhao <xianwei.zhao@...ogic.com> wrote:
>
>> Add the C3 PLL clock controller driver for the Amlogic C3 SoC family.
>>
>> Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
>> ---
>> drivers/clk/meson/Kconfig | 12 +
>> drivers/clk/meson/Makefile | 1 +
>> drivers/clk/meson/c3-pll.c | 510 +++++++++++++++++++++++++++++++++++++
>> drivers/clk/meson/c3-pll.h | 35 +++
>> 4 files changed, 558 insertions(+)
>> create mode 100644 drivers/clk/meson/c3-pll.c
>> create mode 100644 drivers/clk/meson/c3-pll.h
>>
>> diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
>> index c5303e4c1604..76be4bbd2afb 100644
>> --- a/drivers/clk/meson/Kconfig
>> +++ b/drivers/clk/meson/Kconfig
>> @@ -128,6 +128,18 @@ config COMMON_CLK_A1_PERIPHERALS
>> device, A1 SoC Family. Say Y if you want A1 Peripherals clock
>> controller to work.
>>
>> +config COMMON_CLK_C3_PLL
>> + tristate "Amlogic C3 PLL clock controller"
>> + default y
>> + select COMMON_CLK_MESON_REGMAP
>> + select COMMON_CLK_MESON_PLL
>> + select COMMON_CLK_MESON_CLKC_UTILS
>> + help
>> + Support for the PLL clock controller on Amlogic C302X and C308L devices,
>> + AKA c3. Amlogic C302X and C308L devices include AW402, AW409 and AW419.
>> + Say Y if you want the board to work, because PLLs are the parent of most
>> + peripherals.
>> +
>> config COMMON_CLK_G12A
>> tristate "G12 and SM1 SoC clock controllers support"
>> depends on ARM64
>> diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
>> index 9ee4b954c896..4420af628b31 100644
>> --- a/drivers/clk/meson/Makefile
>> +++ b/drivers/clk/meson/Makefile
>> @@ -19,6 +19,7 @@ obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o
>> obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o
>> obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o
>> obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o
>> +obj-$(CONFIG_COMMON_CLK_C3_PLL) += c3-pll.o
>> obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o
>> obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o
>> obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o
>> diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c
>> new file mode 100644
>> index 000000000000..5244dc19ab6e
>> --- /dev/null
>> +++ b/drivers/clk/meson/c3-pll.c
>> @@ -0,0 +1,510 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Amlogic C3 PLL Controller Driver
>> + *
>> + * Copyright (c) 2023 Amlogic, inc.
>> + * Author: Chuan Liu <chuan.liu@...ogic.com>
>
> If Chuan is Author, shouldn't get his Signed-off-by ?
> Maybe Co-developed-by as well ?
>
>> + */
>> +
>> +#include <linux/clk-provider.h>
>> +#include <linux/of_device.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/clk.h>
>> +#include "clk-regmap.h"
>> +#include "clk-pll.h"
>> +#include "c3-pll.h"
>> +#include "meson-clkc-utils.h"
>> +#include <dt-bindings/clock/amlogic,c3-pll-clkc.h>
>> +
>> +#define MEMBER_REG_PARM(_member_name, _reg, _shift, _width) \
>> + ._member_name = { \
>> + .reg_off = _reg, \
>> + .shift = _shift, \
>> + .width = _width, \
>> +}
>> +
>> +#define __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, _ops, _pname, _pdata, _phw, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct meson_clk_pll_data){ \
>> + MEMBER_REG_PARM(en, \
>> + _en_reg, _en_shift, _en_width), \
>> + MEMBER_REG_PARM(m, \
>> + _m_reg, _m_shift, _m_width), \
>> + MEMBER_REG_PARM(frac, \
>> + _f_reg, _f_shift, _f_width), \
>> + MEMBER_REG_PARM(n, \
>> + _n_reg, _n_shift, _n_width), \
>> + MEMBER_REG_PARM(l, \
>> + _l_reg, _l_shift, _l_width), \
>> + MEMBER_REG_PARM(rst, \
>> + _r_reg, _r_shift, _r_width), \
>> + .range = _range, \
>> + .table = _table, \
>> + .init_regs = _init_reg, \
>> + .init_count = _init_reg_cnt, \
>> + .flags = _dflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) {_phw}, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \
>> + _ops, _pname, _pdata, _phw, _pnub, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct clk_regmap_mux_data){ \
>> + .offset = _reg, \
>> + .mask = _mask, \
>> + .shift = _shift, \
>> + .table = _table, \
>> + .flags = _dflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = _pnub, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \
>> + _ops, _pname, _pdata, _phw, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct clk_regmap_div_data){ \
>> + .offset = _reg, \
>> + .shift = _shift, \
>> + .width = _width, \
>> + .table = _table, \
>> + .flags = _dflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_GATE(_name, _reg, _bit, _gflags, \
>> + _ops, _pname, _pdata, _phw, _iflags) \
>> +static struct clk_regmap _name = { \
>> + .data = &(struct clk_regmap_gate_data){ \
>> + .offset = _reg, \
>> + .bit_idx = _bit, \
>> + .flags = _gflags, \
>> + }, \
>> + .hw.init = &(struct clk_init_data) { \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define __AML_CLK_FIXED_FACTOR(_name, _mult, _div, _ops, \
>> + _pname, _pdata, _phw, _iflags) \
>> + static struct clk_fixed_factor _name = { \
>> + .mult = _mult, \
>> + .div = _div, \
>> + .hw.init = &(struct clk_init_data){ \
>> + .name = #_name, \
>> + .ops = _ops, \
>> + .parent_names = _pname, \
>> + .parent_data = _pdata, \
>> + .parent_hws = (const struct clk_hw *[]) { _phw }, \
>> + .num_parents = 1, \
>> + .flags = _iflags, \
>> + }, \
>> +}
>> +
>> +#define AML_CLK_PLL_RW(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, _dflags,\
>> + _pdata, _iflags) \
>> + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, &meson_clk_pll_ops, \
>> + NULL, _pdata, NULL, _iflags)
>> +
>> +#define AML_CLK_PLL_RO(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, _pdata, _iflags) \
>> + __AML_CLK_PLL(_name, _en_reg, _en_shift, _en_width, \
>> + _m_reg, _m_shift, _m_width, \
>> + _f_reg, _f_shift, _f_width, \
>> + _n_reg, _n_shift, _n_width, \
>> + _l_reg, _l_shift, _l_width, \
>> + _r_reg, _r_shift, _r_width, \
>> + _init_reg, _init_reg_cnt, _range, _table, \
>> + _dflags, &meson_clk_pll_ro_ops, \
>> + NULL, _pdata, NULL, _iflags)
>> +
>> +#define AML_CLK_MUX_RW(_name, _reg, _mask, _shift, _table, _dflags, \
>> + _pdata, _iflags) \
>> + __AML_CLK_MUX(_name, _reg, _mask, _shift, _table, _dflags, \
>> + &clk_regmap_mux_ops, NULL, _pdata, NULL, \
>> + ARRAY_SIZE(_pdata), _iflags)
>> +
>> +#define AML_CLK_DIV_RW(_name, _reg, _shift, _width, _table, _dflags, \
>> + _phw, _iflags) \
>> + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \
>> + &clk_regmap_divider_ops, NULL, NULL, \
>> + _phw, _iflags)
>> +
>> +#define AML_CLK_DIV_RO(_name, _reg, _shift, _width, _table, _dflags, \
>> + _phw, _iflags) \
>> + __AML_CLK_DIV(_name, _reg, _shift, _width, _table, _dflags, \
>> + &clk_regmap_divider_ro_ops, NULL, NULL, \
>> + _phw, _iflags)
>> +
>> +#define AML_CLK_GATE_RW(_name, _reg, _bit, _dflags, _phw, _iflags) \
>> + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \
>> + &clk_regmap_gate_ops, NULL, NULL, _phw, \
>> + _iflags)
>> +
>> +#define AML_CLK_GATE_RO(_name, _reg, _bit, _dflags, _phw, _iflags) \
>> + __AML_CLK_GATE(_name, _reg, _bit, _dflags, \
>> + &clk_regmap_gate_ro_ops, NULL, NULL, _phw, \
>> + _iflags)
>> +
>> +#define AML_CLK_FIXED_FACTOR(_name, _mult, _div, _phw, _iflags) \
>> + __AML_CLK_FIXED_FACTOR(_name, _mult, _div, \
>> + &clk_fixed_factor_ops, NULL, NULL, \
>> + _phw, _iflags)
>> +
>
> I don't get why all these macro are needed ? I don't see a 10 instances
> of the very same clock that would justify this.
>
> It makes this driver borderline un-reviewable.
>
> Unless you can provide a very reason why it is better like this, please
> have a look a the a1 and s4 controllers and re-submit.
>
> Same goes for patch #4
>
>
>> +static const struct clk_parent_data pll_dco_parent = {
>> + .fw_name = "pll_in",
>> +};
>> +
>> +static const struct clk_parent_data mclk_pll_dco_parent = {
>> + .fw_name = "mclk_pll_in",
>> +};
>> +
>> +AML_CLK_PLL_RO(fixed_pll_dco, ANACTRL_FIXPLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_FIXPLL_CTRL0, 0, 8, /* m */
>> + 0, 0, 0, /* frac */
>> + ANACTRL_FIXPLL_CTRL0, 16, 5, /* n */
>> + ANACTRL_FIXPLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_FIXPLL_CTRL0, 29, 1, /* rst */
>> + NULL, 0, NULL, NULL, 0, &pll_dco_parent, 0);
>> +AML_CLK_DIV_RO(fixed_pll, ANACTRL_FIXPLL_CTRL0, 12, 3, NULL,
>> + CLK_DIVIDER_POWER_OF_TWO, &fixed_pll_dco.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div40_div, 1, 40, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div40, ANACTRL_FIXPLL_CTRL4, 0, 0, &fclk_div40_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div2_div, 1, 2, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div2, ANACTRL_FIXPLL_CTRL4, 24, 0, &fclk_div2_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div2p5_div, 2, 5, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div2p5, ANACTRL_FIXPLL_CTRL4, 4, 0, &fclk_div2p5_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div3_div, 1, 3, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div3, ANACTRL_FIXPLL_CTRL4, 20, 0, &fclk_div3_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div4_div, 1, 4, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div4, ANACTRL_FIXPLL_CTRL4, 21, 0, &fclk_div4_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div5_div, 1, 5, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div5, ANACTRL_FIXPLL_CTRL4, 22, 0, &fclk_div5_div.hw, 0);
>> +AML_CLK_FIXED_FACTOR(fclk_div7_div, 1, 7, &fixed_pll.hw, 0);
>> +AML_CLK_GATE_RO(fclk_div7, ANACTRL_FIXPLL_CTRL4, 23, 0, &fclk_div7_div.hw, 0);
>> +
>> +static const struct reg_sequence c3_gp0_init_regs[] = {
>> + { .reg = ANACTRL_GP0PLL_CTRL1, .def = 0x0 },
>> + { .reg = ANACTRL_GP0PLL_CTRL2, .def = 0x0 },
>> + { .reg = ANACTRL_GP0PLL_CTRL3, .def = 0x48681c00 },
>> + { .reg = ANACTRL_GP0PLL_CTRL4, .def = 0x88770290 },
>> + { .reg = ANACTRL_GP0PLL_CTRL5, .def = 0x3927200a },
>> + { .reg = ANACTRL_GP0PLL_CTRL6, .def = 0x56540000, .delay_us = 10 },
>> + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x080304fa },
>> + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0x380304fa, .delay_us = 10 },
>> + { .reg = ANACTRL_GP0PLL_CTRL0, .def = 0X180304fa }
>> +};
>> +
>> +static const struct pll_params_table c3_gp0_pll_params_table[] = {
>> + PLL_PARAMS(150, 1), /* DCO = 3600M */
>> + PLL_PARAMS(130, 1), /* DCO = 3120M */
>> + PLL_PARAMS(192, 1), /* DCO = 4608M */
>> + PLL_PARAMS(125, 1), /* DCO = 3000M */
>> + { /* sentinel */ }
>> +};
>> +
>> +/* The maximum frequency divider supports is 32, not 128(2^7) */
>> +static const struct clk_div_table c3_gp0_pll_od_table[] = {
>> + { 0, 1 },
>> + { 1, 2 },
>> + { 2, 4 },
>> + { 3, 8 },
>> + { 4, 16 },
>> + { 5, 32 },
>> + { /* sentinel */ }
>> +};
>> +
>> +AML_CLK_PLL_RW(gp0_pll_dco, ANACTRL_GP0PLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_GP0PLL_CTRL0, 0, 9, /* m */
>> + ANACTRL_GP0PLL_CTRL1, 0, 19, /* frac */
>> + ANACTRL_GP0PLL_CTRL0, 10, 5, /* n */
>> + ANACTRL_GP0PLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_GP0PLL_CTRL0, 29, 1, /* rst */
>> + c3_gp0_init_regs, ARRAY_SIZE(c3_gp0_init_regs),
>> + NULL, c3_gp0_pll_params_table, 0,
>> + &pll_dco_parent, 0);
>> +AML_CLK_DIV_RW(gp0_pll, ANACTRL_GP0PLL_CTRL0, 16, 3,
>> + c3_gp0_pll_od_table, 0,
>> + &gp0_pll_dco.hw, CLK_SET_RATE_PARENT);
>> +
>> +static const struct reg_sequence c3_hifi_init_regs[] = {
>> + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x08010496 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x38010496 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x0000ce40 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00000000 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x6a285c00 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x3927200a },
>> + { .reg = ANACTRL_HIFIPLL_CTRL6, .def = 0x56540000, .delay_us = 50 },
>> + { .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x18010496, .delay_us = 20 },
>> +};
>> +
>> +static const struct pll_params_table c3_hifi_pll_params_table[] = {
>> + PLL_PARAMS(150, 1), /* DCO = 3600M */
>> + PLL_PARAMS(130, 1), /* DCO = 3120M */
>> + PLL_PARAMS(192, 1), /* DCO = 4608M */
>> + PLL_PARAMS(125, 1), /* DCO = 3000M */
>> + { /* sentinel */ }
>> +};
>> +
>> +AML_CLK_PLL_RW(hifi_pll_dco, ANACTRL_HIFIPLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_HIFIPLL_CTRL0, 0, 8, /* m */
>> + ANACTRL_HIFIPLL_CTRL1, 0, 19, /* frac */
>> + ANACTRL_HIFIPLL_CTRL0, 10, 5, /* n */
>> + ANACTRL_HIFIPLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_HIFIPLL_CTRL0, 29, 1, /* rst */
>> + c3_hifi_init_regs, ARRAY_SIZE(c3_hifi_init_regs),
>> + NULL, c3_hifi_pll_params_table, 0,
>> + &pll_dco_parent, 0);
>> +AML_CLK_DIV_RW(hifi_pll, ANACTRL_HIFIPLL_CTRL0, 16, 2,
>> + NULL, CLK_DIVIDER_POWER_OF_TWO,
>> + &hifi_pll_dco.hw, CLK_SET_RATE_PARENT);
>> +
>> +static const struct reg_sequence c3_mclk_init_regs[] = {
>> + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x20011063 },
>> + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x30011063 },
>> + { .reg = ANACTRL_MPLL_CTRL1, .def = 0x1420500f },
>> + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023041 },
>> + { .reg = ANACTRL_MPLL_CTRL3, .def = 0x18180000 },
>> + { .reg = ANACTRL_MPLL_CTRL0, .def = 0x10011063 },
>> + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023001 }
>> +};
>> +
>> +static const struct pll_params_table c3_mclk_pll_params_table[] = {
>> + PLL_PARAMS(99, 1), /* VCO = 2376M */
>> + { /* sentinel */ }
>> +};
>> +
>> +static const struct clk_div_table c3_mpll_od_table[] = {
>> + { 0, 1 },
>> + { 1, 2 },
>> + { 2, 4 },
>> + { 3, 8 },
>> + { 4, 16 },
>> + { /* sentinel */ }
>> +};
>> +
>> +AML_CLK_PLL_RW(mclk_pll_dco, ANACTRL_MPLL_CTRL0, 28, 1, /* en */
>> + ANACTRL_MPLL_CTRL0, 0, 8, /* m */
>> + 0, 0, 0, /* frac */
>> + ANACTRL_MPLL_CTRL0, 16, 5, /* n */
>> + ANACTRL_MPLL_CTRL0, 31, 1, /* lock */
>> + ANACTRL_MPLL_CTRL0, 29, 1, /* rst */
>> + c3_mclk_init_regs, ARRAY_SIZE(c3_mclk_init_regs),
>> + NULL, c3_mclk_pll_params_table, 0,
>> + &mclk_pll_dco_parent, 0);
>> +AML_CLK_DIV_RW(mclk_pll, ANACTRL_MPLL_CTRL0, 12, 3,
>> + c3_mpll_od_table, 0,
>> + &mclk_pll_dco.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_DIV_RW(mclk_pll_clk, ANACTRL_MPLL_CTRL4, 16, 5, NULL,
>> + CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
>> + &mclk_pll.hw, CLK_SET_RATE_PARENT);
>> +
>> +static const struct clk_parent_data mclk_parent[] = {
>> + { .hw = &mclk_pll_clk.hw },
>> + { .fw_name = "mclk_pll_in" },
>> + { .hw = &fclk_div40.hw }
>> +};
>> +
>> +AML_CLK_MUX_RW(mclk0_sel, ANACTRL_MPLL_CTRL4, 0x3, 4, NULL, 0,
>> + mclk_parent, 0);
>> +AML_CLK_GATE_RW(mclk0_sel_out, ANACTRL_MPLL_CTRL4, 1, 0,
>> + &mclk0_sel.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_DIV_RW(mclk0_div, ANACTRL_MPLL_CTRL4, 2, 1, NULL, 0,
>> + &mclk0_sel_out.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_GATE_RW(mclk0, ANACTRL_MPLL_CTRL4, 0, 0,
>> + &mclk0_div.hw, CLK_SET_RATE_PARENT);
>> +
>> +AML_CLK_MUX_RW(mclk1_sel, ANACTRL_MPLL_CTRL4, 0x3, 12, NULL, 0,
>> + mclk_parent, 0);
>> +AML_CLK_GATE_RW(mclk1_sel_out, ANACTRL_MPLL_CTRL4, 9, 0,
>> + &mclk1_sel.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_DIV_RW(mclk1_div, ANACTRL_MPLL_CTRL4, 10, 1, NULL, 0,
>> + &mclk1_sel_out.hw, CLK_SET_RATE_PARENT);
>> +AML_CLK_GATE_RW(mclk1, ANACTRL_MPLL_CTRL4, 8, 0,
>> + &mclk1_div.hw, CLK_SET_RATE_PARENT);
>> +
>> +static struct clk_hw *c3_pll_hw_clks[] = {
>> + [CLKID_FIXED_PLL_DCO] = &fixed_pll_dco.hw,
>> + [CLKID_FIXED_PLL] = &fixed_pll.hw,
>> + [CLKID_FCLK_DIV40_DIV] = &fclk_div40_div.hw,
>> + [CLKID_FCLK_DIV40] = &fclk_div40.hw,
>> + [CLKID_FCLK_DIV2_DIV] = &fclk_div2_div.hw,
>> + [CLKID_FCLK_DIV2] = &fclk_div2.hw,
>> + [CLKID_FCLK_DIV2P5_DIV] = &fclk_div2p5_div.hw,
>> + [CLKID_FCLK_DIV2P5] = &fclk_div2p5.hw,
>> + [CLKID_FCLK_DIV3_DIV] = &fclk_div3_div.hw,
>> + [CLKID_FCLK_DIV3] = &fclk_div3.hw,
>> + [CLKID_FCLK_DIV4_DIV] = &fclk_div4_div.hw,
>> + [CLKID_FCLK_DIV4] = &fclk_div4.hw,
>> + [CLKID_FCLK_DIV5_DIV] = &fclk_div5_div.hw,
>> + [CLKID_FCLK_DIV5] = &fclk_div5.hw,
>> + [CLKID_FCLK_DIV7_DIV] = &fclk_div7_div.hw,
>> + [CLKID_FCLK_DIV7] = &fclk_div7.hw,
>> + [CLKID_GP0_PLL_DCO] = &gp0_pll_dco.hw,
>> + [CLKID_GP0_PLL] = &gp0_pll.hw,
>> + [CLKID_HIFI_PLL_DCO] = &hifi_pll_dco.hw,
>> + [CLKID_HIFI_PLL] = &hifi_pll.hw,
>> + [CLKID_MCLK_PLL_DCO] = &mclk_pll_dco.hw,
>> + [CLKID_MCLK_PLL] = &mclk_pll.hw,
>> + [CLKID_MCLK_PLL_CLK] = &mclk_pll_clk.hw,
>> + [CLKID_MCLK0_SEL] = &mclk0_sel.hw,
>> + [CLKID_MCLK0_SEL_OUT] = &mclk0_sel_out.hw,
>> + [CLKID_MCLK0_DIV] = &mclk0_div.hw,
>> + [CLKID_MCLK0] = &mclk0.hw,
>> + [CLKID_MCLK1_SEL] = &mclk1_sel.hw,
>> + [CLKID_MCLK1_SEL_OUT] = &mclk1_sel_out.hw,
>> + [CLKID_MCLK1_DIV] = &mclk1_div.hw,
>> + [CLKID_MCLK1] = &mclk1.hw
>> +};
>> +
>> +/* Convenience table to populate regmap in .probe */
>> +static struct clk_regmap *const c3_pll_clk_regmaps[] = {
>> + &fixed_pll_dco,
>> + &fixed_pll,
>> + &fclk_div40,
>> + &fclk_div2,
>> + &fclk_div2p5,
>> + &fclk_div3,
>> + &fclk_div4,
>> + &fclk_div5,
>> + &fclk_div7,
>> + &gp0_pll_dco,
>> + &gp0_pll,
>> + &hifi_pll_dco,
>> + &hifi_pll,
>> + &mclk_pll_dco,
>> + &mclk_pll,
>> + &mclk_pll_clk,
>> + &mclk0_sel,
>> + &mclk0_sel_out,
>> + &mclk0_div,
>> + &mclk0,
>> + &mclk1_sel,
>> + &mclk1_sel_out,
>> + &mclk1_div,
>> + &mclk1,
>> +};
>> +
>> +static struct regmap_config clkc_regmap_config = {
>> + .reg_bits = 32,
>> + .val_bits = 32,
>> + .reg_stride = 4,
>> +};
>> +
>> +static struct meson_clk_hw_data c3_pll_clks = {
>> + .hws = c3_pll_hw_clks,
>> + .num = ARRAY_SIZE(c3_pll_hw_clks),
>> +};
>> +
>> +static int aml_c3_pll_probe(struct platform_device *pdev)
>> +{
>> + struct device *dev = &pdev->dev;
>> + struct regmap *regmap;
>> + void __iomem *base;
>> + int clkid, ret, i;
>> +
>> + base = devm_platform_ioremap_resource(pdev, 0);
>> + if (IS_ERR(base))
>> + return PTR_ERR(base);
>> +
>> + regmap = devm_regmap_init_mmio(dev, base, &clkc_regmap_config);
>> + if (IS_ERR(regmap))
>> + return PTR_ERR(regmap);
>> +
>> + /* Populate regmap for the regmap backed clocks */
>> + for (i = 0; i < ARRAY_SIZE(c3_pll_clk_regmaps); i++)
>> + c3_pll_clk_regmaps[i]->map = regmap;
>> +
>> + for (clkid = 0; clkid < c3_pll_clks.num; clkid++) {
>> + /* array might be sparse */
>> + if (!c3_pll_clks.hws[clkid])
>> + continue;
>> +
>> + ret = devm_clk_hw_register(dev, c3_pll_clks.hws[clkid]);
>> + if (ret) {
>> + dev_err(dev, "Clock registration failed\n");
>> + return ret;
>> + }
>> + }
>> +
>> + return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get,
>> + &c3_pll_clks);
>> +}
>> +
>> +static const struct of_device_id c3_pll_clkc_match_table[] = {
>> + {
>> + .compatible = "amlogic,c3-pll-clkc",
>> + },
>> + {}
>> +};
>> +MODULE_DEVICE_TABLE(of, c3_pll_clkc_match_table);
>> +
>> +static struct platform_driver c3_pll_driver = {
>> + .probe = aml_c3_pll_probe,
>> + .driver = {
>> + .name = "c3-pll-clkc",
>> + .of_match_table = c3_pll_clkc_match_table,
>> + },
>> +};
>> +
>> +module_platform_driver(c3_pll_driver);
>> +MODULE_AUTHOR("Chuan Liu <chuan.liu@...ogic.com>");
>> +MODULE_LICENSE("GPL");
>> diff --git a/drivers/clk/meson/c3-pll.h b/drivers/clk/meson/c3-pll.h
>> new file mode 100644
>> index 000000000000..92a08196a46f
>> --- /dev/null
>> +++ b/drivers/clk/meson/c3-pll.h
>> @@ -0,0 +1,35 @@
>> +/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
>> +/*
>> + * Copyright (c) 2023 Amlogic, inc.
>> + * Author: Chuan Liu <chuan.liu@...ogic.com>
>> + */
>> +
>> +#ifndef __AML_C3_PLL_H__
>> +#define __AML_C3_PLL_H__
>> +
>> +#define ANACTRL_FIXPLL_CTRL0 0x0040
>> +#define ANACTRL_FIXPLL_CTRL4 0x0050
>> +#define ANACTRL_GP0PLL_CTRL0 0x0080
>> +#define ANACTRL_GP0PLL_CTRL1 0x0084
>> +#define ANACTRL_GP0PLL_CTRL2 0x0088
>> +#define ANACTRL_GP0PLL_CTRL3 0x008c
>> +#define ANACTRL_GP0PLL_CTRL4 0x0090
>> +#define ANACTRL_GP0PLL_CTRL5 0x0094
>> +#define ANACTRL_GP0PLL_CTRL6 0x0098
>> +#define ANACTRL_GP0PLL_STS 0x009c
>> +#define ANACTRL_HIFIPLL_CTRL0 0x0100
>> +#define ANACTRL_HIFIPLL_CTRL1 0x0104
>> +#define ANACTRL_HIFIPLL_CTRL2 0x0108
>> +#define ANACTRL_HIFIPLL_CTRL3 0x010c
>> +#define ANACTRL_HIFIPLL_CTRL4 0x0110
>> +#define ANACTRL_HIFIPLL_CTRL5 0x0114
>> +#define ANACTRL_HIFIPLL_CTRL6 0x0118
>> +#define ANACTRL_HIFIPLL_STS 0x011c
>> +#define ANACTRL_MPLL_CTRL0 0x0180
>> +#define ANACTRL_MPLL_CTRL1 0x0184
>> +#define ANACTRL_MPLL_CTRL2 0x0188
>> +#define ANACTRL_MPLL_CTRL3 0x018c
>> +#define ANACTRL_MPLL_CTRL4 0x0190
>> +#define ANACTRL_MPLL_STS 0x01a4
>> +
>> +#endif /* __AML_C3_PLL_H__ */
>
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