drivers/clk/qcom/dispcc-sdm845.c

/*
 * Copyright (c) 2017, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#define pr_fmt(fmt) "clk: %s: " fmt, __func__

#include <linux/kernel.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include <linux/reset-controller.h>

#include <dt-bindings/clock/qcom,dispcc-sdm845.h>

#include "common.h"
#include "clk-regmap.h"
#include "clk-pll.h"
#include "clk-rcg.h"
#include "clk-branch.h"
#include "reset.h"
#include "clk-alpha-pll.h"
#include "vdd-level-sdm845.h"
#include "clk-regmap-divider.h"

#define DISP_CC_MISC_CMD	0x8000

#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
#define F_SLEW(f, s, h, m, n, src_freq) { (f), (s), (2 * (h) - 1), (m), (n), \
					(src_freq) }

static DEFINE_VDD_REGULATORS(vdd_cx, VDD_CX_NUM, 1, vdd_corner);

enum {
	P_BI_TCXO,
	P_CORE_BI_PLL_TEST_SE,
	P_DISP_CC_PLL0_OUT_MAIN,
	P_DP_PHY_PLL_LINK_CLK,
	P_DP_PHY_PLL_VCO_DIV_CLK,
	P_DSI0_PHY_PLL_OUT_BYTECLK,
	P_DSI0_PHY_PLL_OUT_DSICLK,
	P_DSI1_PHY_PLL_OUT_BYTECLK,
	P_DSI1_PHY_PLL_OUT_DSICLK,
	P_GPLL0_OUT_MAIN,
	P_GPLL0_OUT_MAIN_DIV,
};

static const struct parent_map disp_cc_parent_map_0[] = {
	{ P_BI_TCXO, 0 },
	{ P_DSI0_PHY_PLL_OUT_BYTECLK, 1 },
	{ P_DSI1_PHY_PLL_OUT_BYTECLK, 2 },
	{ P_CORE_BI_PLL_TEST_SE, 7 },
};

static const char * const disp_cc_parent_names_0[] = {
	"bi_tcxo",
	"dsi0_phy_pll_out_byteclk",
	"dsi1_phy_pll_out_byteclk",
	"core_bi_pll_test_se",
};

static const struct parent_map disp_cc_parent_map_1[] = {
	{ P_BI_TCXO, 0 },
	{ P_DP_PHY_PLL_LINK_CLK, 1 },
	{ P_DP_PHY_PLL_VCO_DIV_CLK, 2 },
	{ P_CORE_BI_PLL_TEST_SE, 7 },
};

static const char * const disp_cc_parent_names_1[] = {
	"bi_tcxo",
	"dp_link_clk_divsel_ten",
	"dp_vco_divided_clk_src_mux",
	"core_bi_pll_test_se",
};

static const struct parent_map disp_cc_parent_map_2[] = {
	{ P_BI_TCXO, 0 },
	{ P_CORE_BI_PLL_TEST_SE, 7 },
};

static const char * const disp_cc_parent_names_2[] = {
	"bi_tcxo",
	"core_bi_pll_test_se",
};

static const struct parent_map disp_cc_parent_map_3[] = {
	{ P_BI_TCXO, 0 },
	{ P_DISP_CC_PLL0_OUT_MAIN, 1 },
	{ P_GPLL0_OUT_MAIN, 4 },
	{ P_GPLL0_OUT_MAIN_DIV, 5 },
	{ P_CORE_BI_PLL_TEST_SE, 7 },
};

static const char * const disp_cc_parent_names_3[] = {
	"bi_tcxo",
	"disp_cc_pll0",
	"gcc_disp_gpll0_clk_src",
	"gcc_disp_gpll0_div_clk_src",
	"core_bi_pll_test_se",
};

static const struct parent_map disp_cc_parent_map_4[] = {
	{ P_BI_TCXO, 0 },
	{ P_DSI0_PHY_PLL_OUT_DSICLK, 1 },
	{ P_DSI1_PHY_PLL_OUT_DSICLK, 2 },
	{ P_CORE_BI_PLL_TEST_SE, 7 },
};

static const char * const disp_cc_parent_names_4[] = {
	"bi_tcxo",
	"dsi0_phy_pll_out_dsiclk",
	"dsi1_phy_pll_out_dsiclk",
	"core_bi_pll_test_se",
};

static struct pll_vco fabia_vco[] = {
	{ 249600000, 2000000000, 0 },
	{ 125000000, 1000000000, 1 },
};

static const struct pll_config disp_cc_pll0_config = {
	.l = 0x15,
	.frac = 0x7c00,
};

static const struct pll_config disp_cc_pll0_config_v2 = {
	.l = 0x2c,
	.frac = 0xcaaa,
};

static struct clk_alpha_pll disp_cc_pll0 = {
	.offset = 0x0,
	.vco_table = fabia_vco,
	.num_vco = ARRAY_SIZE(fabia_vco),
	.type = FABIA_PLL,
	.clkr = {
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_pll0",
			.parent_names = (const char *[]){ "bi_tcxo" },
			.num_parents = 1,
			.ops = &clk_fabia_pll_ops,
			VDD_CX_FMAX_MAP4(
				MIN, 615000000,
				LOW, 1066000000,
				LOW_L1, 1600000000,
				NOMINAL, 2000000000),
		},
	},
};

static struct clk_rcg2 disp_cc_mdss_byte0_clk_src = {
	.cmd_rcgr = 0x20d0,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_0,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_byte0_clk_src",
		.parent_names = disp_cc_parent_names_0,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_byte2_ops,
		VDD_CX_FMAX_MAP5(
			MIN, 19200000,
			LOWER, 150000000,
			LOW, 240000000,
			LOW_L1, 262500000,
			NOMINAL, 358000000),
	},
};

static struct clk_rcg2 disp_cc_mdss_byte1_clk_src = {
	.cmd_rcgr = 0x20ec,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_0,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_byte1_clk_src",
		.parent_names = disp_cc_parent_names_0,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_byte2_ops,
		VDD_CX_FMAX_MAP5(
			MIN, 19200000,
			LOWER, 150000000,
			LOW, 240000000,
			LOW_L1, 262500000,
			NOMINAL, 358000000),
	},
};

static const struct freq_tbl ftbl_disp_cc_mdss_dp_aux_clk_src[] = {
	F(19200000, P_BI_TCXO, 1, 0, 0),
	{ }
};

static struct clk_rcg2 disp_cc_mdss_dp_aux_clk_src = {
	.cmd_rcgr = 0x219c,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_2,
	.freq_tbl = ftbl_disp_cc_mdss_dp_aux_clk_src,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_dp_aux_clk_src",
		.parent_names = disp_cc_parent_names_2,
		.num_parents = 2,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP1(
			MIN, 19200000),
	},
};

static const struct freq_tbl ftbl_disp_cc_mdss_dp_crypto_clk_src[] = {
	F( 108000, P_DP_PHY_PLL_LINK_CLK,   3,   0,   0),
	F( 180000, P_DP_PHY_PLL_LINK_CLK,   3,   0,   0),
	F( 360000, P_DP_PHY_PLL_LINK_CLK,   3,   0,   0),
	F( 540000, P_DP_PHY_PLL_LINK_CLK,   3,   0,   0),
	{ }
};

static struct clk_rcg2 disp_cc_mdss_dp_crypto_clk_src = {
	.cmd_rcgr = 0x2154,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_1,
	.freq_tbl = ftbl_disp_cc_mdss_dp_crypto_clk_src,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_dp_crypto_clk_src",
		.parent_names = disp_cc_parent_names_1,
		.num_parents = 4,
		.flags = CLK_GET_RATE_NOCACHE,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP5(
			MIN, 12800,
			LOWER, 108000,
			LOW, 180000,
			LOW_L1, 360000,
			NOMINAL, 540000),
	},
};

static const struct freq_tbl ftbl_disp_cc_mdss_dp_link_clk_src[] = {
	F( 162000, P_DP_PHY_PLL_LINK_CLK,   1,   0,   0),
	F( 270000, P_DP_PHY_PLL_LINK_CLK,   1,   0,   0),
	F( 540000, P_DP_PHY_PLL_LINK_CLK,   1,   0,   0),
	F( 810000, P_DP_PHY_PLL_LINK_CLK,   1,   0,   0),
	{ }
};

static struct clk_rcg2 disp_cc_mdss_dp_link_clk_src = {
	.cmd_rcgr = 0x2138,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_1,
	.freq_tbl = ftbl_disp_cc_mdss_dp_link_clk_src,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_dp_link_clk_src",
		.parent_names = disp_cc_parent_names_1,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP5(
			MIN, 19200,
			LOWER, 162000,
			LOW, 270000,
			LOW_L1, 540000,
			NOMINAL, 810000),
	},
};

static struct clk_rcg2 disp_cc_mdss_dp_pixel1_clk_src = {
	.cmd_rcgr = 0x2184,
	.mnd_width = 16,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_1,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_dp_pixel1_clk_src",
		.parent_names = disp_cc_parent_names_1,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_dp_ops,
		VDD_CX_FMAX_MAP4(
			MIN, 19200,
			LOWER, 202500,
			LOW, 296735,
			LOW_L1, 675000),
	},
};

static struct clk_rcg2 disp_cc_mdss_dp_pixel_clk_src = {
	.cmd_rcgr = 0x216c,
	.mnd_width = 16,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_1,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_dp_pixel_clk_src",
		.parent_names = disp_cc_parent_names_1,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_dp_ops,
		VDD_CX_FMAX_MAP4(
			MIN, 19200,
			LOWER, 202500,
			LOW, 296735,
			LOW_L1, 675000),
	},
};

static const struct freq_tbl ftbl_disp_cc_mdss_esc0_clk_src[] = {
	F(19200000, P_BI_TCXO, 1, 0, 0),
	{ }
};

static struct clk_rcg2 disp_cc_mdss_esc0_clk_src = {
	.cmd_rcgr = 0x2108,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_0,
	.freq_tbl = ftbl_disp_cc_mdss_esc0_clk_src,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_esc0_clk_src",
		.parent_names = disp_cc_parent_names_0,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP1(
			MIN, 19200000),
	},
};

static struct clk_rcg2 disp_cc_mdss_esc1_clk_src = {
	.cmd_rcgr = 0x2120,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_0,
	.freq_tbl = ftbl_disp_cc_mdss_esc0_clk_src,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_esc1_clk_src",
		.parent_names = disp_cc_parent_names_0,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP1(
			MIN, 19200000),
	},
};

static const struct freq_tbl ftbl_disp_cc_mdss_mdp_clk_src[] = {
	F(19200000, P_BI_TCXO, 1, 0, 0),
	F(85714286, P_GPLL0_OUT_MAIN, 7, 0, 0),
	F(100000000, P_GPLL0_OUT_MAIN, 6, 0, 0),
	F(150000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
	F(165000000, P_DISP_CC_PLL0_OUT_MAIN, 2.5, 0, 0),
	F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
	F(275000000, P_DISP_CC_PLL0_OUT_MAIN, 1.5, 0, 0),
	F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
	F(412500000, P_DISP_CC_PLL0_OUT_MAIN, 1, 0, 0),
	{ }
};

static const struct freq_tbl ftbl_disp_cc_mdss_mdp_clk_src_sdm845_v2[] = {
	F(19200000, P_BI_TCXO, 1, 0, 0),
	F(85714286, P_GPLL0_OUT_MAIN, 7, 0, 0),
	F(100000000, P_GPLL0_OUT_MAIN, 6, 0, 0),
	F(150000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
	F(171428571, P_GPLL0_OUT_MAIN, 3.5, 0, 0),
	F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
	F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
	F(344000000, P_DISP_CC_PLL0_OUT_MAIN, 2.5, 0, 0),
	F(430000000, P_DISP_CC_PLL0_OUT_MAIN, 2, 0, 0),
	{ }
};

static struct clk_rcg2 disp_cc_mdss_mdp_clk_src = {
	.cmd_rcgr = 0x2088,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_3,
	.freq_tbl = ftbl_disp_cc_mdss_mdp_clk_src,
	.enable_safe_config = true,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_mdp_clk_src",
		.parent_names = disp_cc_parent_names_3,
		.num_parents = 5,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP4(
			MIN, 19200000,
			LOWER, 165000000,
			LOW, 300000000,
			NOMINAL, 412500000),
	},
};

static struct clk_rcg2 disp_cc_mdss_pclk0_clk_src = {
	.cmd_rcgr = 0x2058,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_4,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_pclk0_clk_src",
		.parent_names = disp_cc_parent_names_4,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_pixel_ops,
		VDD_CX_FMAX_MAP5(
			MIN, 19200000,
			LOWER, 184000000,
			LOW, 295000000,
			LOW_L1, 350000000,
			NOMINAL, 571428571),
	},
};

static struct clk_rcg2 disp_cc_mdss_pclk1_clk_src = {
	.cmd_rcgr = 0x2070,
	.mnd_width = 8,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_4,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_pclk1_clk_src",
		.parent_names = disp_cc_parent_names_4,
		.num_parents = 4,
		.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
		.ops = &clk_pixel_ops,
		VDD_CX_FMAX_MAP5(
			MIN, 19200000,
			LOWER, 184000000,
			LOW, 295000000,
			LOW_L1, 350000000,
			NOMINAL, 571428571),
	},
};

static const struct freq_tbl ftbl_disp_cc_mdss_rot_clk_src[] = {
	F(19200000, P_BI_TCXO, 1, 0, 0),
	F(165000000, P_DISP_CC_PLL0_OUT_MAIN, 2.5, 0, 0),
	F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
	F(412500000, P_DISP_CC_PLL0_OUT_MAIN, 1, 0, 0),
	{ }
};

static const struct freq_tbl ftbl_disp_cc_mdss_rot_clk_src_sdm845_v2[] = {
	F(19200000, P_BI_TCXO, 1, 0, 0),
	F(171428571, P_GPLL0_OUT_MAIN, 3.5, 0, 0),
	F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
	F(344000000, P_DISP_CC_PLL0_OUT_MAIN, 2.5, 0, 0),
	F(430000000, P_DISP_CC_PLL0_OUT_MAIN, 2, 0, 0),
	{ }
};

static struct clk_rcg2 disp_cc_mdss_rot_clk_src = {
	.cmd_rcgr = 0x20a0,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_3,
	.freq_tbl = ftbl_disp_cc_mdss_rot_clk_src,
	.enable_safe_config = true,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_rot_clk_src",
		.parent_names = disp_cc_parent_names_3,
		.num_parents = 5,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP4(
			MIN, 19200000,
			LOWER, 165000000,
			LOW, 300000000,
			NOMINAL, 412500000),
	},
};

static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = {
	.cmd_rcgr = 0x20b8,
	.mnd_width = 0,
	.hid_width = 5,
	.parent_map = disp_cc_parent_map_2,
	.freq_tbl = ftbl_disp_cc_mdss_esc0_clk_src,
	.clkr.hw.init = &(struct clk_init_data){
		.name = "disp_cc_mdss_vsync_clk_src",
		.parent_names = disp_cc_parent_names_2,
		.num_parents = 2,
		.flags = CLK_SET_RATE_PARENT,
		.ops = &clk_rcg2_ops,
		VDD_CX_FMAX_MAP1(
			MIN, 19200000),
	},
};

static struct clk_branch disp_cc_mdss_ahb_clk = {
	.halt_reg = 0x4004,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4004,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_ahb_clk",
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_axi_clk = {
	.halt_reg = 0x4008,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4008,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_axi_clk",
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_byte0_clk = {
	.halt_reg = 0x2028,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2028,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_byte0_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_byte0_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = {
	.reg = 0x20e8,
	.shift = 0,
	.width = 2,
	.clkr = {
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_byte0_div_clk_src",
			.parent_names = (const char *[]){
				"disp_cc_mdss_byte0_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_GET_RATE_NOCACHE,
			.ops = &clk_regmap_div_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_byte0_intf_clk = {
	.halt_reg = 0x202c,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x202c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_byte0_intf_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_byte0_div_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_byte1_clk = {
	.halt_reg = 0x2030,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2030,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_byte1_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_byte1_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_regmap_div disp_cc_mdss_byte1_div_clk_src = {
	.reg = 0x2104,
	.shift = 0,
	.width = 2,
	.clkr = {
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_byte1_div_clk_src",
			.parent_names = (const char *[]){
				"disp_cc_mdss_byte1_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_GET_RATE_NOCACHE,
			.ops = &clk_regmap_div_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_byte1_intf_clk = {
	.halt_reg = 0x2034,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2034,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_byte1_intf_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_byte1_div_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_dp_aux_clk = {
	.halt_reg = 0x2054,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2054,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_dp_aux_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_dp_aux_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_dp_crypto_clk = {
	.halt_reg = 0x2048,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2048,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_dp_crypto_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_dp_crypto_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_dp_link_clk = {
	.halt_reg = 0x2040,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2040,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_dp_link_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_dp_link_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

/* reset state of disp_cc_mdss_dp_link_div_clk_src divider is 0x3 (div 4) */
static struct clk_branch disp_cc_mdss_dp_link_intf_clk = {
	.halt_reg = 0x2044,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2044,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_dp_link_intf_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_dp_link_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_dp_pixel1_clk = {
	.halt_reg = 0x2050,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2050,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_dp_pixel1_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_dp_pixel1_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_dp_pixel_clk = {
	.halt_reg = 0x204c,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x204c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_dp_pixel_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_dp_pixel_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_esc0_clk = {
	.halt_reg = 0x2038,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2038,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_esc0_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_esc0_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_esc1_clk = {
	.halt_reg = 0x203c,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x203c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_esc1_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_esc1_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_mdp_clk = {
	.halt_reg = 0x200c,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x200c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_mdp_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_mdp_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_mdp_lut_clk = {
	.halt_reg = 0x201c,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x201c,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_mdp_lut_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_mdp_clk_src",
			},
			.num_parents = 1,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_pclk0_clk = {
	.halt_reg = 0x2004,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2004,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_pclk0_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_pclk0_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_pclk1_clk = {
	.halt_reg = 0x2008,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2008,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_pclk1_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_pclk1_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_qdss_at_clk = {
	.halt_reg = 0x4010,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4010,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_qdss_at_clk",
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_qdss_tsctr_div8_clk = {
	.halt_reg = 0x4014,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x4014,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_qdss_tsctr_div8_clk",
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_rot_clk = {
	.halt_reg = 0x2014,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2014,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_rot_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_rot_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_rscc_ahb_clk = {
	.halt_reg = 0x5004,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x5004,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_rscc_ahb_clk",
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_rscc_vsync_clk = {
	.halt_reg = 0x5008,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x5008,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_rscc_vsync_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_vsync_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_branch disp_cc_mdss_vsync_clk = {
	.halt_reg = 0x2024,
	.halt_check = BRANCH_HALT,
	.clkr = {
		.enable_reg = 0x2024,
		.enable_mask = BIT(0),
		.hw.init = &(struct clk_init_data){
			.name = "disp_cc_mdss_vsync_clk",
			.parent_names = (const char *[]){
				"disp_cc_mdss_vsync_clk_src",
			},
			.num_parents = 1,
			.flags = CLK_SET_RATE_PARENT,
			.ops = &clk_branch2_ops,
		},
	},
};

static struct clk_regmap *disp_cc_sdm845_clocks[] = {
	[DISP_CC_MDSS_AHB_CLK] = &disp_cc_mdss_ahb_clk.clkr,
	[DISP_CC_MDSS_AXI_CLK] = &disp_cc_mdss_axi_clk.clkr,
	[DISP_CC_MDSS_BYTE0_CLK] = &disp_cc_mdss_byte0_clk.clkr,
	[DISP_CC_MDSS_BYTE0_CLK_SRC] = &disp_cc_mdss_byte0_clk_src.clkr,
	[DISP_CC_MDSS_BYTE0_INTF_CLK] = &disp_cc_mdss_byte0_intf_clk.clkr,
	[DISP_CC_MDSS_BYTE0_DIV_CLK_SRC] =
					&disp_cc_mdss_byte0_div_clk_src.clkr,
	[DISP_CC_MDSS_BYTE1_CLK] = &disp_cc_mdss_byte1_clk.clkr,
	[DISP_CC_MDSS_BYTE1_CLK_SRC] = &disp_cc_mdss_byte1_clk_src.clkr,
	[DISP_CC_MDSS_BYTE1_INTF_CLK] = &disp_cc_mdss_byte1_intf_clk.clkr,
	[DISP_CC_MDSS_BYTE1_DIV_CLK_SRC] =
					&disp_cc_mdss_byte1_div_clk_src.clkr,
	[DISP_CC_MDSS_DP_AUX_CLK] = &disp_cc_mdss_dp_aux_clk.clkr,
	[DISP_CC_MDSS_DP_AUX_CLK_SRC] = &disp_cc_mdss_dp_aux_clk_src.clkr,
	[DISP_CC_MDSS_DP_CRYPTO_CLK] = &disp_cc_mdss_dp_crypto_clk.clkr,
	[DISP_CC_MDSS_DP_CRYPTO_CLK_SRC] =
					&disp_cc_mdss_dp_crypto_clk_src.clkr,
	[DISP_CC_MDSS_DP_LINK_CLK] = &disp_cc_mdss_dp_link_clk.clkr,
	[DISP_CC_MDSS_DP_LINK_CLK_SRC] = &disp_cc_mdss_dp_link_clk_src.clkr,
	[DISP_CC_MDSS_DP_LINK_INTF_CLK] = &disp_cc_mdss_dp_link_intf_clk.clkr,
	[DISP_CC_MDSS_DP_PIXEL1_CLK] = &disp_cc_mdss_dp_pixel1_clk.clkr,
	[DISP_CC_MDSS_DP_PIXEL1_CLK_SRC] =
					&disp_cc_mdss_dp_pixel1_clk_src.clkr,
	[DISP_CC_MDSS_DP_PIXEL_CLK] = &disp_cc_mdss_dp_pixel_clk.clkr,
	[DISP_CC_MDSS_DP_PIXEL_CLK_SRC] = &disp_cc_mdss_dp_pixel_clk_src.clkr,
	[DISP_CC_MDSS_ESC0_CLK] = &disp_cc_mdss_esc0_clk.clkr,
	[DISP_CC_MDSS_ESC0_CLK_SRC] = &disp_cc_mdss_esc0_clk_src.clkr,
	[DISP_CC_MDSS_ESC1_CLK] = &disp_cc_mdss_esc1_clk.clkr,
	[DISP_CC_MDSS_ESC1_CLK_SRC] = &disp_cc_mdss_esc1_clk_src.clkr,
	[DISP_CC_MDSS_MDP_CLK] = &disp_cc_mdss_mdp_clk.clkr,
	[DISP_CC_MDSS_MDP_CLK_SRC] = &disp_cc_mdss_mdp_clk_src.clkr,
	[DISP_CC_MDSS_MDP_LUT_CLK] = &disp_cc_mdss_mdp_lut_clk.clkr,
	[DISP_CC_MDSS_PCLK0_CLK] = &disp_cc_mdss_pclk0_clk.clkr,
	[DISP_CC_MDSS_PCLK0_CLK_SRC] = &disp_cc_mdss_pclk0_clk_src.clkr,
	[DISP_CC_MDSS_PCLK1_CLK] = &disp_cc_mdss_pclk1_clk.clkr,
	[DISP_CC_MDSS_PCLK1_CLK_SRC] = &disp_cc_mdss_pclk1_clk_src.clkr,
	[DISP_CC_MDSS_QDSS_AT_CLK] = &disp_cc_mdss_qdss_at_clk.clkr,
	[DISP_CC_MDSS_QDSS_TSCTR_DIV8_CLK] =
					&disp_cc_mdss_qdss_tsctr_div8_clk.clkr,
	[DISP_CC_MDSS_ROT_CLK] = &disp_cc_mdss_rot_clk.clkr,
	[DISP_CC_MDSS_ROT_CLK_SRC] = &disp_cc_mdss_rot_clk_src.clkr,
	[DISP_CC_MDSS_RSCC_AHB_CLK] = &disp_cc_mdss_rscc_ahb_clk.clkr,
	[DISP_CC_MDSS_RSCC_VSYNC_CLK] = &disp_cc_mdss_rscc_vsync_clk.clkr,
	[DISP_CC_MDSS_VSYNC_CLK] = &disp_cc_mdss_vsync_clk.clkr,
	[DISP_CC_MDSS_VSYNC_CLK_SRC] = &disp_cc_mdss_vsync_clk_src.clkr,
	[DISP_CC_PLL0] = &disp_cc_pll0.clkr,
};

static const struct qcom_reset_map disp_cc_sdm845_resets[] = {
	[DISP_CC_MDSS_RSCC_BCR] = { 0x5000 },
};

static const struct regmap_config disp_cc_sdm845_regmap_config = {
	.reg_bits	= 32,
	.reg_stride	= 4,
	.val_bits	= 32,
	.max_register	= 0x10000,
	.fast_io	= true,
};

static const struct qcom_cc_desc disp_cc_sdm845_desc = {
	.config = &disp_cc_sdm845_regmap_config,
	.clks = disp_cc_sdm845_clocks,
	.num_clks = ARRAY_SIZE(disp_cc_sdm845_clocks),
	.resets = disp_cc_sdm845_resets,
	.num_resets = ARRAY_SIZE(disp_cc_sdm845_resets),
};

static const struct of_device_id disp_cc_sdm845_match_table[] = {
	{ .compatible = "qcom,dispcc-sdm845" },
	{ .compatible = "qcom,dispcc-sdm845-v2" },
	{ }
};
MODULE_DEVICE_TABLE(of, disp_cc_sdm845_match_table);

static void disp_cc_sdm845_fixup_sdm845v2(struct regmap *regmap)
{
	clk_fabia_pll_configure(&disp_cc_pll0, regmap,
					&disp_cc_pll0_config_v2);
	disp_cc_mdss_byte0_clk_src.clkr.hw.init->rate_max[VDD_CX_LOWER] =
		180000000;
	disp_cc_mdss_byte0_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW] =
		275000000;
	disp_cc_mdss_byte0_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW_L1] =
		358000000;
	disp_cc_mdss_byte1_clk_src.clkr.hw.init->rate_max[VDD_CX_LOWER] =
		180000000;
	disp_cc_mdss_byte1_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW] =
		275000000;
	disp_cc_mdss_byte1_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW_L1] =
		358000000;
	disp_cc_mdss_dp_pixel1_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW] =
		337500000;
	disp_cc_mdss_dp_pixel_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW] =
		337500000;
	disp_cc_mdss_mdp_clk_src.freq_tbl =
		ftbl_disp_cc_mdss_mdp_clk_src_sdm845_v2;
	disp_cc_mdss_mdp_clk_src.clkr.hw.init->rate_max[VDD_CX_LOWER] =
		171428571;
	disp_cc_mdss_mdp_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW_L1] =
		344000000;
	disp_cc_mdss_mdp_clk_src.clkr.hw.init->rate_max[VDD_CX_NOMINAL] =
		430000000;
	disp_cc_mdss_pclk0_clk_src.clkr.hw.init->rate_max[VDD_CX_LOWER] =
		280000000;
	disp_cc_mdss_pclk0_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW] =
		430000000;
	disp_cc_mdss_pclk1_clk_src.clkr.hw.init->rate_max[VDD_CX_LOWER] =
		280000000;
	disp_cc_mdss_pclk1_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW] =
		430000000;
	disp_cc_mdss_rot_clk_src.freq_tbl =
		ftbl_disp_cc_mdss_rot_clk_src_sdm845_v2;
	disp_cc_mdss_rot_clk_src.clkr.hw.init->rate_max[VDD_CX_LOWER] =
		171428571;
	disp_cc_mdss_rot_clk_src.clkr.hw.init->rate_max[VDD_CX_LOW_L1] =
		344000000;
	disp_cc_mdss_rot_clk_src.clkr.hw.init->rate_max[VDD_CX_NOMINAL] =
		430000000;
}

static int disp_cc_sdm845_fixup(struct platform_device *pdev,
						struct regmap *regmap)
{
	const char *compat = NULL;
	int compatlen = 0;

	compat = of_get_property(pdev->dev.of_node, "compatible", &compatlen);
	if (!compat || (compatlen <= 0))
		return -EINVAL;

	if (!strcmp(compat, "qcom,dispcc-sdm845-v2"))
		disp_cc_sdm845_fixup_sdm845v2(regmap);

	return 0;
}

static int disp_cc_sdm845_probe(struct platform_device *pdev)
{
	struct regmap *regmap;
	int ret = 0;

	regmap = qcom_cc_map(pdev, &disp_cc_sdm845_desc);
	if (IS_ERR(regmap)) {
		pr_err("Failed to map the Display CC registers\n");
		return PTR_ERR(regmap);
	}

	vdd_cx.regulator[0] = devm_regulator_get(&pdev->dev, "vdd_cx");
	if (IS_ERR(vdd_cx.regulator[0])) {
		if (!(PTR_ERR(vdd_cx.regulator[0]) == -EPROBE_DEFER))
			dev_err(&pdev->dev,
				"Unable to get vdd_cx regulator\n");
		return PTR_ERR(vdd_cx.regulator[0]);
	}

	clk_fabia_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config);

	/* Enable clock gating for DSI and MDP clocks */
	regmap_update_bits(regmap, DISP_CC_MISC_CMD, 0x7f0, 0x7f0);

	ret = disp_cc_sdm845_fixup(pdev, regmap);
	if (ret)
		return ret;

	ret = qcom_cc_really_probe(pdev, &disp_cc_sdm845_desc, regmap);
	if (ret) {
		dev_err(&pdev->dev, "Failed to register Display CC clocks\n");
		return ret;
	}

	dev_info(&pdev->dev, "Registered Display CC clocks\n");
	return ret;
}

static struct platform_driver disp_cc_sdm845_driver = {
	.probe		= disp_cc_sdm845_probe,
	.driver		= {
		.name	= "disp_cc-sdm845",
		.of_match_table = disp_cc_sdm845_match_table,
	},
};

static int __init disp_cc_sdm845_init(void)
{
	return platform_driver_register(&disp_cc_sdm845_driver);
}
subsys_initcall(disp_cc_sdm845_init);

static void __exit disp_cc_sdm845_exit(void)
{
	platform_driver_unregister(&disp_cc_sdm845_driver);
}
module_exit(disp_cc_sdm845_exit);

MODULE_DESCRIPTION("QTI DISP_CC SDM845 Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:disp_cc-sdm845");