xref: /linux/drivers/clk/qcom/cambistmclkcc-sm8750.c (revision c17ee635fd3a482b2ad2bf5e269755c2eae5f25e)

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
 */

#include <linux/clk-provider.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>

#include <dt-bindings/clock/qcom,sm8750-cambistmclkcc.h>

#include "clk-alpha-pll.h"
#include "clk-branch.h"
#include "clk-rcg.h"
#include "clk-regmap.h"
#include "common.h"
#include "reset.h"

enum {
	DT_IFACE,
	DT_BI_TCXO,
	DT_BI_TCXO_AO,
	DT_SLEEP_CLK,
};

enum {
	P_BI_TCXO,
	P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN,
	P_CAM_BIST_MCLK_CC_PLL0_OUT_MAIN,
	P_SLEEP_CLK,
};

static const struct pll_vco rivian_elu_vco[] = {
	{ 833000000, 1125000000, 0 },
	{ 777000000, 1062000000, 1 },
};

/* 960.0 MHz Configuration */
static const struct alpha_pll_config cam_bist_mclk_cc_pll0_config = {
	.l = 0x32,
	.alpha = 0x0,
	.config_ctl_val = 0x12000000,
	.config_ctl_hi_val = 0x00890263,
	.config_ctl_hi1_val = 0x1af04237,
	.config_ctl_hi2_val = 0x00000000,
};

static struct clk_alpha_pll cam_bist_mclk_cc_pll0 = {
	.offset = 0x0,
	.config = &cam_bist_mclk_cc_pll0_config,
	.vco_table = rivian_elu_vco,
	.num_vco = ARRAY_SIZE(rivian_elu_vco),
	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_RIVIAN_ELU],
	.clkr = {
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_pll0",
			.parent_data = &(const struct clk_parent_data) {
				.index = DT_BI_TCXO,
			},
			.num_parents = 1,
			.ops = &clk_alpha_pll_rivian_elu_ops,
		},
	},
};

static const struct parent_map cam_bist_mclk_cc_parent_map_0[] = {
	{ P_BI_TCXO, 0 },
	{ P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN, 3 },
	{ P_CAM_BIST_MCLK_CC_PLL0_OUT_MAIN, 5 },
};

static const struct clk_parent_data cam_bist_mclk_cc_parent_data_0[] = {
	{ .index = DT_BI_TCXO },
	{ .hw = &cam_bist_mclk_cc_pll0.clkr.hw },
	{ .hw = &cam_bist_mclk_cc_pll0.clkr.hw },
};

static const struct parent_map cam_bist_mclk_cc_parent_map_1[] = {
	{ P_SLEEP_CLK, 0 },
};

static const struct clk_parent_data cam_bist_mclk_cc_parent_data_1[] = {
	{ .index = DT_SLEEP_CLK },
};

static const struct freq_tbl ftbl_cam_bist_mclk_cc_mclk0_clk_src[] = {
	F(12000000, P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN, 10, 1, 8),
	F(19200000, P_BI_TCXO, 1, 0, 0),
	F(24000000, P_CAM_BIST_MCLK_CC_PLL0_OUT_EVEN, 10, 1, 4),
	F(68571429, P_CAM_BIST_MCLK_CC_PLL0_OUT_MAIN, 14, 0, 0),
	{ }
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk0_clk_src = {
	.cmd_rcgr = 0x4000,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk0_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk1_clk_src = {
	.cmd_rcgr = 0x401c,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk1_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk2_clk_src = {
	.cmd_rcgr = 0x4038,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk2_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk3_clk_src = {
	.cmd_rcgr = 0x4054,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk3_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk4_clk_src = {
	.cmd_rcgr = 0x4070,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk4_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk5_clk_src = {
	.cmd_rcgr = 0x408c,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk5_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk6_clk_src = {
	.cmd_rcgr = 0x40a8,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk6_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_rcg2 cam_bist_mclk_cc_mclk7_clk_src = {
	.cmd_rcgr = 0x40c4,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_0,
	.freq_tbl = ftbl_cam_bist_mclk_cc_mclk0_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_mclk7_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_0,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_0),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static const struct freq_tbl ftbl_cam_bist_mclk_cc_sleep_clk_src[] = {
	F(32000, P_SLEEP_CLK, 1, 0, 0),
	{ }
};

static struct clk_rcg2 cam_bist_mclk_cc_sleep_clk_src = {
	.cmd_rcgr = 0x40e0,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = cam_bist_mclk_cc_parent_map_1,
	.freq_tbl = ftbl_cam_bist_mclk_cc_sleep_clk_src,
	.clkr.hw.init = &(const struct clk_init_data) {
		.name = "cam_bist_mclk_cc_sleep_clk_src",
		.parent_data = cam_bist_mclk_cc_parent_data_1,
		.num_parents = ARRAY_SIZE(cam_bist_mclk_cc_parent_data_1),
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_shared_ops,
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk0_clk = {
	.halt_reg = 0x4018,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4018,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk0_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk0_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk1_clk = {
	.halt_reg = 0x4034,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4034,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk1_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk1_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk2_clk = {
	.halt_reg = 0x4050,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4050,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk2_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk2_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk3_clk = {
	.halt_reg = 0x406c,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x406c,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk3_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk3_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk4_clk = {
	.halt_reg = 0x4088,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4088,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk4_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk4_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk5_clk = {
	.halt_reg = 0x40a4,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x40a4,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk5_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk5_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk6_clk = {
	.halt_reg = 0x40c0,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x40c0,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk6_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk6_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch cam_bist_mclk_cc_mclk7_clk = {
	.halt_reg = 0x40dc,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x40dc,
		.enable_mask = BIT(0),
		.hw.init = &(const struct clk_init_data) {
			.name = "cam_bist_mclk_cc_mclk7_clk",
			.parent_hws = (const struct clk_hw*[]) {
				&cam_bist_mclk_cc_mclk7_clk_src.clkr.hw,
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_regmap *cam_bist_mclk_cc_sm8750_clocks[] = {
	[CAM_BIST_MCLK_CC_MCLK0_CLK] = &cam_bist_mclk_cc_mclk0_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK0_CLK_SRC] = &cam_bist_mclk_cc_mclk0_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK1_CLK] = &cam_bist_mclk_cc_mclk1_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK1_CLK_SRC] = &cam_bist_mclk_cc_mclk1_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK2_CLK] = &cam_bist_mclk_cc_mclk2_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK2_CLK_SRC] = &cam_bist_mclk_cc_mclk2_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK3_CLK] = &cam_bist_mclk_cc_mclk3_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK3_CLK_SRC] = &cam_bist_mclk_cc_mclk3_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK4_CLK] = &cam_bist_mclk_cc_mclk4_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK4_CLK_SRC] = &cam_bist_mclk_cc_mclk4_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK5_CLK] = &cam_bist_mclk_cc_mclk5_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK5_CLK_SRC] = &cam_bist_mclk_cc_mclk5_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK6_CLK] = &cam_bist_mclk_cc_mclk6_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK6_CLK_SRC] = &cam_bist_mclk_cc_mclk6_clk_src.clkr,
	[CAM_BIST_MCLK_CC_MCLK7_CLK] = &cam_bist_mclk_cc_mclk7_clk.clkr,
	[CAM_BIST_MCLK_CC_MCLK7_CLK_SRC] = &cam_bist_mclk_cc_mclk7_clk_src.clkr,
	[CAM_BIST_MCLK_CC_PLL0] = &cam_bist_mclk_cc_pll0.clkr,
	[CAM_BIST_MCLK_CC_SLEEP_CLK_SRC] = &cam_bist_mclk_cc_sleep_clk_src.clkr,
};

static struct clk_alpha_pll *cam_bist_mclk_cc_sm8750_plls[] = {
	&cam_bist_mclk_cc_pll0,
};

static u32 cam_bist_mclk_cc_sm8750_critical_cbcrs[] = {
	0x40f8, /* CAM_BIST_MCLK_CC_SLEEP_CLK */
};

static const struct regmap_config cam_bist_mclk_cc_sm8750_regmap_config = {
	.reg_bits = 32,
	.reg_stride = 4,
	.val_bits = 32,
	.max_register = 0x5010,
	.fast_io = true,
};

static struct qcom_cc_driver_data cam_bist_mclk_cc_sm8750_driver_data = {
	.alpha_plls = cam_bist_mclk_cc_sm8750_plls,
	.num_alpha_plls = ARRAY_SIZE(cam_bist_mclk_cc_sm8750_plls),
	.clk_cbcrs = cam_bist_mclk_cc_sm8750_critical_cbcrs,
	.num_clk_cbcrs = ARRAY_SIZE(cam_bist_mclk_cc_sm8750_critical_cbcrs),
};

static const struct qcom_cc_desc cam_bist_mclk_cc_sm8750_desc = {
	.config = &cam_bist_mclk_cc_sm8750_regmap_config,
	.clks = cam_bist_mclk_cc_sm8750_clocks,
	.num_clks = ARRAY_SIZE(cam_bist_mclk_cc_sm8750_clocks),
	.use_rpm = true,
	.driver_data = &cam_bist_mclk_cc_sm8750_driver_data,
};

static const struct of_device_id cam_bist_mclk_cc_sm8750_match_table[] = {
	{ .compatible = "qcom,sm8750-cambistmclkcc" },
	{ }
};
MODULE_DEVICE_TABLE(of, cam_bist_mclk_cc_sm8750_match_table);

static int cam_bist_mclk_cc_sm8750_probe(struct platform_device *pdev)
{
	return qcom_cc_probe(pdev, &cam_bist_mclk_cc_sm8750_desc);
}

static struct platform_driver cam_bist_mclk_cc_sm8750_driver = {
	.probe = cam_bist_mclk_cc_sm8750_probe,
	.driver = {
		.name = "cambistmclkcc-sm8750",
		.of_match_table = cam_bist_mclk_cc_sm8750_match_table,
	},
};

module_platform_driver(cam_bist_mclk_cc_sm8750_driver);

MODULE_DESCRIPTION("QTI CAMBISTMCLKCC SM8750 Driver");
MODULE_LICENSE("GPL");