[PATCH v7 4/5] clk: meson: c3: add support for the C3 SoC PLL clock
Jerome Brunet
jbrunet at baylibre.com
Fri May 3 05:21:50 PDT 2024
On Wed 24 Apr 2024 at 13:09, Xianwei Zhao <xianwei.zhao at amlogic.com> wrote:
> Add the C3 PLL clock controller driver for the Amlogic C3 SoC family.
>
> Co-developed-by: Chuan Liu <chuan.liu at amlogic.com>
> Signed-off-by: Chuan Liu <chuan.liu at amlogic.com>
> Signed-off-by: Xianwei Zhao <xianwei.zhao at amlogic.com>
> ---
> drivers/clk/meson/Kconfig | 14 +
> drivers/clk/meson/Makefile | 1 +
> drivers/clk/meson/c3-pll.c | 747 +++++++++++++++++++++++++++++++++++++
> 3 files changed, 762 insertions(+)
> create mode 100644 drivers/clk/meson/c3-pll.c
>
> diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
> index 29ffd14d267b..9f975a980581 100644
> --- a/drivers/clk/meson/Kconfig
> +++ b/drivers/clk/meson/Kconfig
> @@ -128,6 +128,20 @@ 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"
> + depends on ARM64
> + depends on ARM_SCMI_PROTOCOL
> + depends on COMMON_CLK_SCMI
Same here. imply not depends.
And you it should really imply COMMON_CLK_SCMI only.
COMMON_CLK_SCMI already depends on ARM_SCMI_PROTOCOL, as it should.
> + 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. 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..c84fce1232bd
> --- /dev/null
> +++ b/drivers/clk/meson/c3-pll.c
> @@ -0,0 +1,747 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +/*
> + * Amlogic C3 PLL Controller Driver
> + *
> + * Copyright (c) 2023 Amlogic, inc.
> + * Author: Chuan Liu <chuan.liu at amlogic.com>
> + */
> +
> +#include <linux/clk-provider.h>
> +#include <linux/of_device.h>
> +#include <linux/platform_device.h>
> +#include "clk-regmap.h"
> +#include "clk-pll.h"
> +#include "meson-clkc-utils.h"
> +#include <dt-bindings/clock/amlogic,c3-pll-clkc.h>
> +
> +#define ANACTRL_FIXPLL_CTRL4 0x50
> +#define ANACTRL_GP0PLL_CTRL0 0x80
> +#define ANACTRL_GP0PLL_CTRL1 0x84
> +#define ANACTRL_GP0PLL_CTRL2 0x88
> +#define ANACTRL_GP0PLL_CTRL3 0x8c
> +#define ANACTRL_GP0PLL_CTRL4 0x90
> +#define ANACTRL_GP0PLL_CTRL5 0x94
> +#define ANACTRL_GP0PLL_CTRL6 0x98
> +#define ANACTRL_HIFIPLL_CTRL0 0x100
> +#define ANACTRL_HIFIPLL_CTRL1 0x104
> +#define ANACTRL_HIFIPLL_CTRL2 0x108
> +#define ANACTRL_HIFIPLL_CTRL3 0x10c
> +#define ANACTRL_HIFIPLL_CTRL4 0x110
> +#define ANACTRL_HIFIPLL_CTRL5 0x114
> +#define ANACTRL_HIFIPLL_CTRL6 0x118
> +#define ANACTRL_MPLL_CTRL0 0x180
> +#define ANACTRL_MPLL_CTRL1 0x184
> +#define ANACTRL_MPLL_CTRL2 0x188
> +#define ANACTRL_MPLL_CTRL3 0x18c
> +#define ANACTRL_MPLL_CTRL4 0x190
> +
> +static struct clk_regmap fclk_50m_en = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 0,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_50m_en",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_50m = {
> + .mult = 1,
> + .div = 40,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_50m",
> + .ops = &clk_fixed_factor_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_50m_en.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_div2_div = {
> + .mult = 1,
> + .div = 2,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div2_div",
> + .ops = &clk_fixed_factor_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap fclk_div2 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 24,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div2",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_div2_div.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_div2p5_div = {
> + .mult = 2,
> + .div = 5,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div2p5_div",
> + .ops = &clk_fixed_factor_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap fclk_div2p5 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 4,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div2p5",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_div2p5_div.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_div3_div = {
> + .mult = 1,
> + .div = 3,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div3_div",
> + .ops = &clk_fixed_factor_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap fclk_div3 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 20,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div3",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_div3_div.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_div4_div = {
> + .mult = 1,
> + .div = 4,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div4_div",
> + .ops = &clk_fixed_factor_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap fclk_div4 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 21,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div4",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_div4_div.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_div5_div = {
> + .mult = 1,
> + .div = 5,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div5_div",
> + .ops = &clk_fixed_factor_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap fclk_div5 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 22,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div5",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_div5_div.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_fixed_factor fclk_div7_div = {
> + .mult = 1,
> + .div = 7,
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div7_div",
> + .ops = &clk_fixed_factor_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "fix"
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap fclk_div7 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_FIXPLL_CTRL4,
> + .bit_idx = 23,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "fclk_div7",
> + .ops = &clk_regmap_gate_ro_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &fclk_div7_div.hw
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static const struct reg_sequence c3_gp0_init_regs[] = {
> + { .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 },
> +};
> +
> +static const struct pll_mult_range c3_gp0_pll_mult_range = {
> + .min = 125,
> + .max = 250,
> +};
> +
> +static struct clk_regmap gp0_pll_dco = {
> + .data = &(struct meson_clk_pll_data) {
> + .en = {
> + .reg_off = ANACTRL_GP0PLL_CTRL0,
> + .shift = 28,
> + .width = 1,
> + },
> + .m = {
> + .reg_off = ANACTRL_GP0PLL_CTRL0,
> + .shift = 0,
> + .width = 9,
> + },
> + .frac = {
> + .reg_off = ANACTRL_GP0PLL_CTRL1,
> + .shift = 0,
> + .width = 19,
> + },
> + .n = {
> + .reg_off = ANACTRL_GP0PLL_CTRL0,
> + .shift = 10,
> + .width = 5,
> + },
> + .l = {
> + .reg_off = ANACTRL_GP0PLL_CTRL0,
> + .shift = 31,
> + .width = 1,
> + },
> + .rst = {
> + .reg_off = ANACTRL_GP0PLL_CTRL0,
> + .shift = 29,
> + .width = 1,
> + },
> + .range = &c3_gp0_pll_mult_range,
> + .init_regs = c3_gp0_init_regs,
> + .init_count = ARRAY_SIZE(c3_gp0_init_regs),
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "gp0_pll_dco",
> + .ops = &meson_clk_pll_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "top",
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +/* 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 */ }
> +};
> +
> +static struct clk_regmap gp0_pll = {
> + .data = &(struct clk_regmap_div_data) {
> + .offset = ANACTRL_GP0PLL_CTRL0,
> + .shift = 16,
> + .width = 3,
> + .table = c3_gp0_pll_od_table,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "gp0_pll",
> + .ops = &clk_regmap_divider_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &gp0_pll_dco.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static const struct reg_sequence c3_hifi_init_regs[] = {
> + { .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x0 },
> + { .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x6a285c00 },
> + { .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 },
> + { .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x3927200a },
> + { .reg = ANACTRL_HIFIPLL_CTRL6, .def = 0x56540000 },
> +};
> +
> +static struct clk_regmap hifi_pll_dco = {
> + .data = &(struct meson_clk_pll_data) {
> + .en = {
> + .reg_off = ANACTRL_HIFIPLL_CTRL0,
> + .shift = 28,
> + .width = 1,
> + },
> + .m = {
> + .reg_off = ANACTRL_HIFIPLL_CTRL0,
> + .shift = 0,
> + .width = 8,
> + },
> + .frac = {
> + .reg_off = ANACTRL_HIFIPLL_CTRL1,
> + .shift = 0,
> + .width = 19,
> + },
> + .n = {
> + .reg_off = ANACTRL_HIFIPLL_CTRL0,
> + .shift = 10,
> + .width = 5,
> + },
> + .l = {
> + .reg_off = ANACTRL_HIFIPLL_CTRL0,
> + .shift = 31,
> + .width = 1,
> + },
> + .rst = {
> + .reg_off = ANACTRL_HIFIPLL_CTRL0,
> + .shift = 29,
> + .width = 1,
> + },
> + .range = &c3_gp0_pll_mult_range,
> + .init_regs = c3_hifi_init_regs,
> + .init_count = ARRAY_SIZE(c3_hifi_init_regs),
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "hifi_pll_dco",
> + .ops = &meson_clk_pll_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "top",
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static struct clk_regmap hifi_pll = {
> + .data = &(struct clk_regmap_div_data) {
> + .offset = ANACTRL_HIFIPLL_CTRL0,
> + .shift = 16,
> + .width = 2,
> + .flags = CLK_DIVIDER_POWER_OF_TWO,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "hifi_pll",
> + .ops = &clk_regmap_divider_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &hifi_pll_dco.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static const struct reg_sequence c3_mclk_init_regs[] = {
> + { .reg = ANACTRL_MPLL_CTRL1, .def = 0x1420500f },
> + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023041 },
> + { .reg = ANACTRL_MPLL_CTRL3, .def = 0x18180000 },
> + { .reg = ANACTRL_MPLL_CTRL2, .def = 0x00023001 }
> +};
> +
> +static const struct pll_mult_range c3_mclk_pll_mult_range = {
> + .min = 67,
> + .max = 133,
> +};
> +
> +static struct clk_regmap mclk_pll_dco = {
> + .data = &(struct meson_clk_pll_data) {
> + .en = {
> + .reg_off = ANACTRL_MPLL_CTRL0,
> + .shift = 28,
> + .width = 1,
> + },
> + .m = {
> + .reg_off = ANACTRL_MPLL_CTRL0,
> + .shift = 0,
> + .width = 8,
> + },
> + .n = {
> + .reg_off = ANACTRL_MPLL_CTRL0,
> + .shift = 16,
> + .width = 5,
> + },
> + .l = {
> + .reg_off = ANACTRL_MPLL_CTRL0,
> + .shift = 31,
> + .width = 1,
> + },
> + .rst = {
> + .reg_off = ANACTRL_MPLL_CTRL0,
> + .shift = 29,
> + .width = 1,
> + },
> + .range = &c3_mclk_pll_mult_range,
> + .init_regs = c3_mclk_init_regs,
> + .init_count = ARRAY_SIZE(c3_mclk_init_regs),
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk_pll_dco",
> + .ops = &meson_clk_pll_ops,
> + .parent_data = &(const struct clk_parent_data) {
> + .fw_name = "mclk",
> + },
> + .num_parents = 1,
> + },
> +};
> +
> +static const struct clk_div_table c3_mpll_od_table[] = {
> + { 0, 1 },
> + { 1, 2 },
> + { 2, 4 },
> + { 3, 8 },
> + { 4, 16 },
> + { /* sentinel */ }
> +};
> +
> +static struct clk_regmap mclk_pll_od = {
> + .data = &(struct clk_regmap_div_data) {
> + .offset = ANACTRL_MPLL_CTRL0,
> + .shift = 12,
> + .width = 3,
> + .table = c3_mpll_od_table,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk_pll_od",
> + .ops = &clk_regmap_divider_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk_pll_dco.hw },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +/* both value 0 and 1 gives divide the input rate by one */
> +static struct clk_regmap mclk_pll = {
> + .data = &(struct clk_regmap_div_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .shift = 16,
> + .width = 5,
> + .flags = CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk_pll",
> + .ops = &clk_regmap_divider_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk_pll_od.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static const struct clk_parent_data mclk_parent[] = {
> + { .hw = &mclk_pll.hw },
> + { .fw_name = "mclk" },
> + { .hw = &fclk_50m.hw }
> +};
> +
> +static struct clk_regmap mclk0_sel = {
> + .data = &(struct clk_regmap_mux_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .mask = 0x3,
> + .shift = 4,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk0_sel",
> + .ops = &clk_regmap_mux_ops,
> + .parent_data = mclk_parent,
> + .num_parents = ARRAY_SIZE(mclk_parent),
> + },
> +};
> +
> +static struct clk_regmap mclk0_div_en = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .bit_idx = 1,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk0_div_en",
> + .ops = &clk_regmap_gate_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk0_sel.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static struct clk_regmap mclk0_div = {
> + .data = &(struct clk_regmap_div_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .shift = 2,
> + .width = 1,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk0_div",
> + .ops = &clk_regmap_divider_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk0_div_en.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static struct clk_regmap mclk0 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .bit_idx = 0,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk0",
> + .ops = &clk_regmap_gate_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk0_div.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static struct clk_regmap mclk1_sel = {
> + .data = &(struct clk_regmap_mux_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .mask = 0x3,
> + .shift = 12,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk1_sel",
> + .ops = &clk_regmap_mux_ops,
> + .parent_data = mclk_parent,
> + .num_parents = ARRAY_SIZE(mclk_parent),
> + },
> +};
> +
> +static struct clk_regmap mclk1_div_en = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .bit_idx = 9,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk1_div_en",
> + .ops = &clk_regmap_gate_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk1_sel.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static struct clk_regmap mclk1_div = {
> + .data = &(struct clk_regmap_div_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .shift = 10,
> + .width = 1,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk1_div",
> + .ops = &clk_regmap_divider_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk1_div_en.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static struct clk_regmap mclk1 = {
> + .data = &(struct clk_regmap_gate_data) {
> + .offset = ANACTRL_MPLL_CTRL4,
> + .bit_idx = 8,
> + },
> + .hw.init = &(struct clk_init_data) {
> + .name = "mclk1",
> + .ops = &clk_regmap_gate_ops,
> + .parent_hws = (const struct clk_hw *[]) {
> + &mclk1_div.hw
> + },
> + .num_parents = 1,
> + .flags = CLK_SET_RATE_PARENT,
> + },
> +};
> +
> +static struct clk_hw *c3_pll_hw_clks[] = {
> + [CLKID_FCLK_50M_EN] = &fclk_50m_en.hw,
> + [CLKID_FCLK_50M] = &fclk_50m.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_OD] = &mclk_pll_od.hw,
> + [CLKID_MCLK_PLL] = &mclk_pll.hw,
> + [CLKID_MCLK0_SEL] = &mclk0_sel.hw,
> + [CLKID_MCLK0_SEL_EN] = &mclk0_div_en.hw,
> + [CLKID_MCLK0_DIV] = &mclk0_div.hw,
> + [CLKID_MCLK0] = &mclk0.hw,
> + [CLKID_MCLK1_SEL] = &mclk1_sel.hw,
> + [CLKID_MCLK1_SEL_EN] = &mclk1_div_en.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[] = {
> + &fclk_50m_en,
> + &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_od,
> + &mclk_pll,
> + &mclk0_sel,
> + &mclk0_div_en,
> + &mclk0_div,
> + &mclk0,
> + &mclk1_sel,
> + &mclk1_div_en,
> + &mclk1_div,
> + &mclk1,
> +};
> +
> +static struct regmap_config clkc_regmap_config = {
> + .reg_bits = 32,
> + .val_bits = 32,
> + .reg_stride = 4,
> + .max_register = ANACTRL_MPLL_CTRL4,
> +};
> +
> +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 at amlogic.com>");
> +MODULE_LICENSE("GPL");
--
Jerome
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