| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * Copyright (c) 2020, The Linux Foundation. All rights reserved. |
| * Copyright (c) 2021, Linaro Ltd. |
| */ |
| |
| #include <linux/err.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/of_device.h> |
| #include <linux/of.h> |
| #include <linux/regmap.h> |
| |
| #include <dt-bindings/clock/qcom,dispcc-qcm2290.h> |
| |
| #include "clk-alpha-pll.h" |
| #include "clk-branch.h" |
| #include "clk-rcg.h" |
| #include "clk-regmap.h" |
| #include "clk-regmap-divider.h" |
| #include "common.h" |
| #include "gdsc.h" |
| #include "reset.h" |
| |
| enum { |
| P_BI_TCXO, |
| P_DISP_CC_PLL0_OUT_MAIN, |
| P_DSI0_PHY_PLL_OUT_BYTECLK, |
| P_DSI0_PHY_PLL_OUT_DSICLK, |
| P_GPLL0_OUT_MAIN, |
| P_SLEEP_CLK, |
| }; |
| |
| static const struct pll_vco spark_vco[] = { |
| { 500000000, 1000000000, 2 }, |
| }; |
| |
| /* 768MHz configuration */ |
| static const struct alpha_pll_config disp_cc_pll0_config = { |
| .l = 0x28, |
| .alpha = 0x0, |
| .alpha_en_mask = BIT(24), |
| .vco_val = 0x2 << 20, |
| .vco_mask = GENMASK(21, 20), |
| .main_output_mask = BIT(0), |
| .config_ctl_val = 0x4001055B, |
| }; |
| |
| static struct clk_alpha_pll disp_cc_pll0 = { |
| .offset = 0x0, |
| .vco_table = spark_vco, |
| .num_vco = ARRAY_SIZE(spark_vco), |
| .regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_DEFAULT], |
| .clkr = { |
| .hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_pll0", |
| .parent_data = &(const struct clk_parent_data){ |
| .fw_name = "bi_tcxo", |
| }, |
| .num_parents = 1, |
| .ops = &clk_alpha_pll_ops, |
| }, |
| }, |
| }; |
| |
| static const struct parent_map disp_cc_parent_map_0[] = { |
| { P_BI_TCXO, 0 }, |
| { P_DSI0_PHY_PLL_OUT_BYTECLK, 1 }, |
| }; |
| |
| static const struct clk_parent_data disp_cc_parent_data_0[] = { |
| { .fw_name = "bi_tcxo" }, |
| { .fw_name = "dsi0_phy_pll_out_byteclk" }, |
| }; |
| |
| static const struct parent_map disp_cc_parent_map_1[] = { |
| { P_BI_TCXO, 0 }, |
| }; |
| |
| static const struct clk_parent_data disp_cc_parent_data_1[] = { |
| { .fw_name = "bi_tcxo" }, |
| }; |
| |
| static const struct parent_map disp_cc_parent_map_2[] = { |
| { P_BI_TCXO, 0 }, |
| { P_GPLL0_OUT_MAIN, 4 }, |
| }; |
| |
| static const struct clk_parent_data disp_cc_parent_data_2[] = { |
| { .fw_name = "bi_tcxo_ao" }, |
| { .fw_name = "gcc_disp_gpll0_div_clk_src" }, |
| }; |
| |
| 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 }, |
| }; |
| |
| static const struct clk_parent_data disp_cc_parent_data_3[] = { |
| { .fw_name = "bi_tcxo" }, |
| { .hw = &disp_cc_pll0.clkr.hw }, |
| { .fw_name = "gcc_disp_gpll0_clk_src" }, |
| }; |
| |
| static const struct parent_map disp_cc_parent_map_4[] = { |
| { P_BI_TCXO, 0 }, |
| { P_DSI0_PHY_PLL_OUT_DSICLK, 1 }, |
| }; |
| |
| static const struct clk_parent_data disp_cc_parent_data_4[] = { |
| { .fw_name = "bi_tcxo" }, |
| { .fw_name = "dsi0_phy_pll_out_dsiclk" }, |
| }; |
| |
| static const struct parent_map disp_cc_parent_map_5[] = { |
| { P_SLEEP_CLK, 0 }, |
| }; |
| |
| static const struct clk_parent_data disp_cc_parent_data_5[] = { |
| { .fw_name = "sleep_clk" }, |
| }; |
| |
| static struct clk_rcg2 disp_cc_mdss_byte0_clk_src = { |
| .cmd_rcgr = 0x20a4, |
| .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_data = disp_cc_parent_data_0, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_0), |
| /* For set_rate and set_parent to succeed, parent(s) must be enabled */ |
| .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, |
| .ops = &clk_byte2_ops, |
| }, |
| }; |
| |
| static struct clk_regmap_div disp_cc_mdss_byte0_div_clk_src = { |
| .reg = 0x20bc, |
| .shift = 0, |
| .width = 2, |
| .clkr.hw.init = &(struct clk_init_data) { |
| .name = "disp_cc_mdss_byte0_div_clk_src", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_byte0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .ops = &clk_regmap_div_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_disp_cc_mdss_ahb_clk_src[] = { |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| F(37500000, P_GPLL0_OUT_MAIN, 8, 0, 0), |
| F(75000000, P_GPLL0_OUT_MAIN, 4, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 disp_cc_mdss_ahb_clk_src = { |
| .cmd_rcgr = 0x2154, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = disp_cc_parent_map_2, |
| .freq_tbl = ftbl_disp_cc_mdss_ahb_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_ahb_clk_src", |
| .parent_data = disp_cc_parent_data_2, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_2), |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }; |
| |
| 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 = 0x20c0, |
| .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_data = disp_cc_parent_data_0, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_0), |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_disp_cc_mdss_mdp_clk_src[] = { |
| F(19200000, P_BI_TCXO, 1, 0, 0), |
| F(192000000, P_DISP_CC_PLL0_OUT_MAIN, 4, 0, 0), |
| F(256000000, P_DISP_CC_PLL0_OUT_MAIN, 3, 0, 0), |
| F(307200000, P_DISP_CC_PLL0_OUT_MAIN, 2.5, 0, 0), |
| F(384000000, P_DISP_CC_PLL0_OUT_MAIN, 2, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 disp_cc_mdss_mdp_clk_src = { |
| .cmd_rcgr = 0x2074, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = disp_cc_parent_map_3, |
| .freq_tbl = ftbl_disp_cc_mdss_mdp_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_mdp_clk_src", |
| .parent_data = disp_cc_parent_data_3, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_3), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }; |
| |
| static struct clk_rcg2 disp_cc_mdss_pclk0_clk_src = { |
| .cmd_rcgr = 0x205c, |
| .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_data = disp_cc_parent_data_4, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_4), |
| /* For set_rate and set_parent to succeed, parent(s) must be enabled */ |
| .flags = CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE, |
| .ops = &clk_pixel_ops, |
| }, |
| }; |
| |
| static struct clk_rcg2 disp_cc_mdss_vsync_clk_src = { |
| .cmd_rcgr = 0x208c, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = disp_cc_parent_map_1, |
| .freq_tbl = ftbl_disp_cc_mdss_esc0_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_vsync_clk_src", |
| .parent_data = disp_cc_parent_data_1, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_1), |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_rcg2_shared_ops, |
| }, |
| }; |
| |
| static const struct freq_tbl ftbl_disp_cc_sleep_clk_src[] = { |
| F(32764, P_SLEEP_CLK, 1, 0, 0), |
| { } |
| }; |
| |
| static struct clk_rcg2 disp_cc_sleep_clk_src = { |
| .cmd_rcgr = 0x6050, |
| .mnd_width = 0, |
| .hid_width = 5, |
| .parent_map = disp_cc_parent_map_5, |
| .freq_tbl = ftbl_disp_cc_sleep_clk_src, |
| .clkr.hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_sleep_clk_src", |
| .parent_data = disp_cc_parent_data_5, |
| .num_parents = ARRAY_SIZE(disp_cc_parent_data_5), |
| .ops = &clk_rcg2_ops, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_ahb_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_ahb_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_ahb_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_byte0_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_byte0_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_byte0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_byte0_intf_clk = { |
| .halt_reg = 0x2020, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x2020, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_byte0_intf_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_byte0_div_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_esc0_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_esc0_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_esc0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_mdp_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_mdp_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_mdp_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_mdp_lut_clk = { |
| .halt_reg = 0x2010, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x2010, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_mdp_lut_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_mdp_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_non_gdsc_ahb_clk = { |
| .halt_reg = 0x4004, |
| .halt_check = BRANCH_HALT_VOTED, |
| .clkr = { |
| .enable_reg = 0x4004, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_non_gdsc_ahb_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_ahb_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .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_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_pclk0_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_mdss_vsync_clk = { |
| .halt_reg = 0x2018, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x2018, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_mdss_vsync_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_mdss_vsync_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static struct clk_branch disp_cc_sleep_clk = { |
| .halt_reg = 0x6068, |
| .halt_check = BRANCH_HALT, |
| .clkr = { |
| .enable_reg = 0x6068, |
| .enable_mask = BIT(0), |
| .hw.init = &(struct clk_init_data){ |
| .name = "disp_cc_sleep_clk", |
| .parent_hws = (const struct clk_hw*[]){ |
| &disp_cc_sleep_clk_src.clkr.hw, |
| }, |
| .num_parents = 1, |
| .flags = CLK_SET_RATE_PARENT, |
| .ops = &clk_branch2_ops, |
| }, |
| }, |
| }; |
| |
| static const struct qcom_reset_map disp_cc_qcm2290_resets[] = { |
| [DISP_CC_MDSS_CORE_BCR] = { 0x2000 }, |
| }; |
| |
| static struct gdsc mdss_gdsc = { |
| .gdscr = 0x3000, |
| .pd = { |
| .name = "mdss_gdsc", |
| }, |
| .pwrsts = PWRSTS_OFF_ON, |
| .flags = HW_CTRL, |
| }; |
| |
| static struct gdsc *disp_cc_qcm2290_gdscs[] = { |
| [MDSS_GDSC] = &mdss_gdsc, |
| }; |
| |
| static struct clk_regmap *disp_cc_qcm2290_clocks[] = { |
| [DISP_CC_MDSS_AHB_CLK] = &disp_cc_mdss_ahb_clk.clkr, |
| [DISP_CC_MDSS_AHB_CLK_SRC] = &disp_cc_mdss_ahb_clk_src.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_DIV_CLK_SRC] = &disp_cc_mdss_byte0_div_clk_src.clkr, |
| [DISP_CC_MDSS_BYTE0_INTF_CLK] = &disp_cc_mdss_byte0_intf_clk.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_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_NON_GDSC_AHB_CLK] = &disp_cc_mdss_non_gdsc_ahb_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_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, |
| [DISP_CC_SLEEP_CLK] = &disp_cc_sleep_clk.clkr, |
| [DISP_CC_SLEEP_CLK_SRC] = &disp_cc_sleep_clk_src.clkr, |
| }; |
| |
| static const struct regmap_config disp_cc_qcm2290_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_qcm2290_desc = { |
| .config = &disp_cc_qcm2290_regmap_config, |
| .clks = disp_cc_qcm2290_clocks, |
| .num_clks = ARRAY_SIZE(disp_cc_qcm2290_clocks), |
| .gdscs = disp_cc_qcm2290_gdscs, |
| .num_gdscs = ARRAY_SIZE(disp_cc_qcm2290_gdscs), |
| .resets = disp_cc_qcm2290_resets, |
| .num_resets = ARRAY_SIZE(disp_cc_qcm2290_resets), |
| }; |
| |
| static const struct of_device_id disp_cc_qcm2290_match_table[] = { |
| { .compatible = "qcom,qcm2290-dispcc" }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(of, disp_cc_qcm2290_match_table); |
| |
| static int disp_cc_qcm2290_probe(struct platform_device *pdev) |
| { |
| struct regmap *regmap; |
| int ret; |
| |
| regmap = qcom_cc_map(pdev, &disp_cc_qcm2290_desc); |
| if (IS_ERR(regmap)) |
| return PTR_ERR(regmap); |
| |
| clk_alpha_pll_configure(&disp_cc_pll0, regmap, &disp_cc_pll0_config); |
| |
| /* Keep DISP_CC_XO_CLK always-ON */ |
| regmap_update_bits(regmap, 0x604c, BIT(0), BIT(0)); |
| |
| ret = qcom_cc_really_probe(pdev, &disp_cc_qcm2290_desc, regmap); |
| if (ret) { |
| dev_err(&pdev->dev, "Failed to register DISP CC clocks\n"); |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static struct platform_driver disp_cc_qcm2290_driver = { |
| .probe = disp_cc_qcm2290_probe, |
| .driver = { |
| .name = "dispcc-qcm2290", |
| .of_match_table = disp_cc_qcm2290_match_table, |
| }, |
| }; |
| |
| static int __init disp_cc_qcm2290_init(void) |
| { |
| return platform_driver_register(&disp_cc_qcm2290_driver); |
| } |
| subsys_initcall(disp_cc_qcm2290_init); |
| |
| static void __exit disp_cc_qcm2290_exit(void) |
| { |
| platform_driver_unregister(&disp_cc_qcm2290_driver); |
| } |
| module_exit(disp_cc_qcm2290_exit); |
| |
| MODULE_DESCRIPTION("QTI DISP_CC qcm2290 Driver"); |
| MODULE_LICENSE("GPL v2"); |
