diff options
Diffstat (limited to 'drivers/clk/qcom/dispcc-qcm2290.c')
| -rw-r--r-- | drivers/clk/qcom/dispcc-qcm2290.c | 555 |
1 files changed, 555 insertions, 0 deletions
diff --git a/drivers/clk/qcom/dispcc-qcm2290.c b/drivers/clk/qcom/dispcc-qcm2290.c new file mode 100644 index 0000000000..9206f0eed4 --- /dev/null +++ b/drivers/clk/qcom/dispcc-qcm2290.c @@ -0,0 +1,555 @@ +// 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.h> +#include <linux/platform_device.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_BI_TCXO_AO, + P_DISP_CC_PLL0_OUT_MAIN, + P_DSI0_PHY_PLL_OUT_BYTECLK, + P_DSI0_PHY_PLL_OUT_DSICLK, + P_GPLL0_OUT_DIV, + 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_AO, 0 }, + { P_GPLL0_OUT_DIV, 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_AO, 1, 0, 0), + F(37500000, P_GPLL0_OUT_DIV, 8, 0, 0), + F(75000000, P_GPLL0_OUT_DIV, 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"); |