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980d7c8446
Add support for the graphics clock controller found on Milos (e.g. SM7635) based devices. Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Signed-off-by: Luca Weiss <luca.weiss@fairphone.com> Link: https://lore.kernel.org/r/20250715-sm7635-clocks-v3-9-18f9faac4984@fairphone.com Signed-off-by: Bjorn Andersson <andersson@kernel.org>
562 lines
14 KiB
C
562 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2023-2024, Qualcomm Innovation Center, Inc. All rights reserved.
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* Copyright (c) 2025, Luca Weiss <luca.weiss@fairphone.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <dt-bindings/clock/qcom,milos-gpucc.h>
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#include "clk-alpha-pll.h"
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#include "clk-branch.h"
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#include "clk-pll.h"
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#include "clk-rcg.h"
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#include "clk-regmap.h"
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#include "clk-regmap-divider.h"
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#include "clk-regmap-mux.h"
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#include "common.h"
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#include "gdsc.h"
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#include "reset.h"
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/* Need to match the order of clocks in DT binding */
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enum {
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DT_BI_TCXO,
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DT_GPLL0_OUT_MAIN,
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DT_GPLL0_OUT_MAIN_DIV,
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};
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enum {
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P_BI_TCXO,
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P_GPLL0_OUT_MAIN,
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P_GPLL0_OUT_MAIN_DIV,
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P_GPU_CC_PLL0_OUT_EVEN,
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P_GPU_CC_PLL0_OUT_MAIN,
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P_GPU_CC_PLL0_OUT_ODD,
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};
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static const struct pll_vco lucid_ole_vco[] = {
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{ 249600000, 2300000000, 0 },
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};
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/* 700.0 MHz Configuration */
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static const struct alpha_pll_config gpu_cc_pll0_config = {
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.l = 0x24,
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.alpha = 0x7555,
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.config_ctl_val = 0x20485699,
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.config_ctl_hi_val = 0x00182261,
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.config_ctl_hi1_val = 0x82aa299c,
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.test_ctl_val = 0x00000000,
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.test_ctl_hi_val = 0x00000003,
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.test_ctl_hi1_val = 0x00009000,
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.test_ctl_hi2_val = 0x00000034,
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.user_ctl_val = 0x00000400,
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.user_ctl_hi_val = 0x00000005,
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};
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static struct clk_alpha_pll gpu_cc_pll0 = {
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.offset = 0x0,
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.config = &gpu_cc_pll0_config,
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.vco_table = lucid_ole_vco,
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.num_vco = ARRAY_SIZE(lucid_ole_vco),
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.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
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.clkr = {
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_pll0",
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.parent_data = &(const struct clk_parent_data) {
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.index = DT_BI_TCXO,
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},
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.num_parents = 1,
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.ops = &clk_alpha_pll_lucid_evo_ops,
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},
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},
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};
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static const struct clk_div_table post_div_table_gpu_cc_pll0_out_even[] = {
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{ 0x1, 2 },
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{ }
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};
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static struct clk_alpha_pll_postdiv gpu_cc_pll0_out_even = {
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.offset = 0x0,
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.post_div_shift = 10,
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.post_div_table = post_div_table_gpu_cc_pll0_out_even,
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.num_post_div = ARRAY_SIZE(post_div_table_gpu_cc_pll0_out_even),
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.width = 4,
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.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_LUCID_OLE],
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.clkr.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_pll0_out_even",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_pll0.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_alpha_pll_postdiv_lucid_ole_ops,
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},
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};
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static const struct parent_map gpu_cc_parent_map_0[] = {
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{ P_BI_TCXO, 0 },
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{ P_GPLL0_OUT_MAIN, 5 },
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{ P_GPLL0_OUT_MAIN_DIV, 6 },
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};
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static const struct clk_parent_data gpu_cc_parent_data_0[] = {
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{ .index = DT_BI_TCXO },
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{ .index = DT_GPLL0_OUT_MAIN },
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{ .index = DT_GPLL0_OUT_MAIN_DIV },
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};
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static const struct parent_map gpu_cc_parent_map_1[] = {
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{ P_BI_TCXO, 0 },
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{ P_GPU_CC_PLL0_OUT_MAIN, 1 },
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{ P_GPU_CC_PLL0_OUT_EVEN, 2 },
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{ P_GPU_CC_PLL0_OUT_ODD, 3 },
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{ P_GPLL0_OUT_MAIN, 5 },
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{ P_GPLL0_OUT_MAIN_DIV, 6 },
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};
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static const struct clk_parent_data gpu_cc_parent_data_1[] = {
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{ .index = DT_BI_TCXO },
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{ .hw = &gpu_cc_pll0.clkr.hw },
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{ .hw = &gpu_cc_pll0_out_even.clkr.hw },
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{ .hw = &gpu_cc_pll0.clkr.hw },
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{ .index = DT_GPLL0_OUT_MAIN },
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{ .index = DT_GPLL0_OUT_MAIN_DIV },
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};
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static const struct freq_tbl ftbl_gpu_cc_ff_clk_src[] = {
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F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
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{ }
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};
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static struct clk_rcg2 gpu_cc_ff_clk_src = {
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.cmd_rcgr = 0x9474,
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.mnd_width = 0,
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.hid_width = 5,
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.parent_map = gpu_cc_parent_map_0,
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.freq_tbl = ftbl_gpu_cc_ff_clk_src,
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.clkr.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_ff_clk_src",
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.parent_data = gpu_cc_parent_data_0,
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.num_parents = ARRAY_SIZE(gpu_cc_parent_data_0),
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_rcg2_shared_ops,
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},
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};
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static const struct freq_tbl ftbl_gpu_cc_gmu_clk_src[] = {
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F(19200000, P_BI_TCXO, 1, 0, 0),
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F(350000000, P_GPU_CC_PLL0_OUT_EVEN, 1, 0, 0),
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F(650000000, P_GPU_CC_PLL0_OUT_EVEN, 1, 0, 0),
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F(687500000, P_GPU_CC_PLL0_OUT_EVEN, 1, 0, 0),
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{ }
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};
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static struct clk_rcg2 gpu_cc_gmu_clk_src = {
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.cmd_rcgr = 0x9318,
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.mnd_width = 0,
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.hid_width = 5,
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.parent_map = gpu_cc_parent_map_1,
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.freq_tbl = ftbl_gpu_cc_gmu_clk_src,
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.clkr.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_gmu_clk_src",
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.parent_data = gpu_cc_parent_data_1,
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.num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_rcg2_shared_ops,
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},
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};
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static const struct freq_tbl ftbl_gpu_cc_hub_clk_src[] = {
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F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
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F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
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F(400000000, P_GPLL0_OUT_MAIN, 1.5, 0, 0),
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{ }
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};
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static struct clk_rcg2 gpu_cc_hub_clk_src = {
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.cmd_rcgr = 0x93ec,
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.mnd_width = 0,
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.hid_width = 5,
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.parent_map = gpu_cc_parent_map_1,
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.freq_tbl = ftbl_gpu_cc_hub_clk_src,
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.clkr.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_hub_clk_src",
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.parent_data = gpu_cc_parent_data_1,
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.num_parents = ARRAY_SIZE(gpu_cc_parent_data_1),
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_rcg2_shared_ops,
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},
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};
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static struct clk_regmap_div gpu_cc_hub_div_clk_src = {
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.reg = 0x942c,
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.shift = 0,
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.width = 4,
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.clkr.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_hub_div_clk_src",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_hub_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_regmap_div_ro_ops,
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},
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};
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static struct clk_branch gpu_cc_ahb_clk = {
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.halt_reg = 0x90bc,
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.halt_check = BRANCH_HALT_DELAY,
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.clkr = {
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.enable_reg = 0x90bc,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_ahb_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_hub_div_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_cx_accu_shift_clk = {
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.halt_reg = 0x910c,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x910c,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_cx_accu_shift_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_cx_ff_clk = {
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.halt_reg = 0x90ec,
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.halt_check = BRANCH_HALT,
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.clkr = {
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.enable_reg = 0x90ec,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_cx_ff_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_ff_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_cx_gmu_clk = {
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.halt_reg = 0x90d4,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x90d4,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_cx_gmu_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_gmu_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_aon_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_cxo_clk = {
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.halt_reg = 0x90e4,
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.halt_check = BRANCH_HALT,
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.clkr = {
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.enable_reg = 0x90e4,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_cxo_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_dpm_clk = {
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.halt_reg = 0x9110,
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.halt_check = BRANCH_HALT,
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.clkr = {
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.enable_reg = 0x9110,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_dpm_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_freq_measure_clk = {
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.halt_reg = 0x900c,
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.halt_check = BRANCH_HALT,
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.clkr = {
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.enable_reg = 0x900c,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_freq_measure_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_gx_accu_shift_clk = {
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.halt_reg = 0x9070,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x9070,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_gx_accu_shift_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_gx_acd_ahb_ff_clk = {
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.halt_reg = 0x9068,
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.halt_check = BRANCH_HALT,
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.clkr = {
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.enable_reg = 0x9068,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_gx_acd_ahb_ff_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_ff_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_gx_gmu_clk = {
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.halt_reg = 0x9060,
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.halt_check = BRANCH_HALT,
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.clkr = {
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.enable_reg = 0x9060,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_gx_gmu_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_gmu_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_gx_rcg_ahb_ff_clk = {
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.halt_reg = 0x906c,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x906c,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_gx_rcg_ahb_ff_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_ff_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_hlos1_vote_gpu_smmu_clk = {
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.halt_reg = 0x7000,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x7000,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_hlos1_vote_gpu_smmu_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_hub_aon_clk = {
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.halt_reg = 0x93e8,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x93e8,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_hub_aon_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_hub_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_aon_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_hub_cx_int_clk = {
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.halt_reg = 0x90e8,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x90e8,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_hub_cx_int_clk",
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.parent_hws = (const struct clk_hw*[]) {
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&gpu_cc_hub_clk_src.clkr.hw,
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},
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.num_parents = 1,
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.flags = CLK_SET_RATE_PARENT,
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.ops = &clk_branch2_aon_ops,
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},
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},
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};
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static struct clk_branch gpu_cc_memnoc_gfx_clk = {
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.halt_reg = 0x90f4,
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.halt_check = BRANCH_HALT_VOTED,
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.clkr = {
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.enable_reg = 0x90f4,
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.enable_mask = BIT(0),
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.hw.init = &(const struct clk_init_data) {
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.name = "gpu_cc_memnoc_gfx_clk",
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.ops = &clk_branch2_ops,
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},
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},
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};
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static struct gdsc gpu_cc_cx_gdsc = {
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.gdscr = 0x9080,
|
|
.gds_hw_ctrl = 0x9094,
|
|
.en_rest_wait_val = 0x2,
|
|
.en_few_wait_val = 0x2,
|
|
.clk_dis_wait_val = 0x8,
|
|
.pd = {
|
|
.name = "gpu_cc_cx_gdsc",
|
|
},
|
|
.pwrsts = PWRSTS_OFF_ON,
|
|
.flags = RETAIN_FF_ENABLE | VOTABLE,
|
|
};
|
|
|
|
static struct clk_regmap *gpu_cc_milos_clocks[] = {
|
|
[GPU_CC_AHB_CLK] = &gpu_cc_ahb_clk.clkr,
|
|
[GPU_CC_CX_ACCU_SHIFT_CLK] = &gpu_cc_cx_accu_shift_clk.clkr,
|
|
[GPU_CC_CX_FF_CLK] = &gpu_cc_cx_ff_clk.clkr,
|
|
[GPU_CC_CX_GMU_CLK] = &gpu_cc_cx_gmu_clk.clkr,
|
|
[GPU_CC_CXO_CLK] = &gpu_cc_cxo_clk.clkr,
|
|
[GPU_CC_DPM_CLK] = &gpu_cc_dpm_clk.clkr,
|
|
[GPU_CC_FF_CLK_SRC] = &gpu_cc_ff_clk_src.clkr,
|
|
[GPU_CC_FREQ_MEASURE_CLK] = &gpu_cc_freq_measure_clk.clkr,
|
|
[GPU_CC_GMU_CLK_SRC] = &gpu_cc_gmu_clk_src.clkr,
|
|
[GPU_CC_GX_ACCU_SHIFT_CLK] = &gpu_cc_gx_accu_shift_clk.clkr,
|
|
[GPU_CC_GX_ACD_AHB_FF_CLK] = &gpu_cc_gx_acd_ahb_ff_clk.clkr,
|
|
[GPU_CC_GX_GMU_CLK] = &gpu_cc_gx_gmu_clk.clkr,
|
|
[GPU_CC_GX_RCG_AHB_FF_CLK] = &gpu_cc_gx_rcg_ahb_ff_clk.clkr,
|
|
[GPU_CC_HLOS1_VOTE_GPU_SMMU_CLK] = &gpu_cc_hlos1_vote_gpu_smmu_clk.clkr,
|
|
[GPU_CC_HUB_AON_CLK] = &gpu_cc_hub_aon_clk.clkr,
|
|
[GPU_CC_HUB_CLK_SRC] = &gpu_cc_hub_clk_src.clkr,
|
|
[GPU_CC_HUB_CX_INT_CLK] = &gpu_cc_hub_cx_int_clk.clkr,
|
|
[GPU_CC_HUB_DIV_CLK_SRC] = &gpu_cc_hub_div_clk_src.clkr,
|
|
[GPU_CC_MEMNOC_GFX_CLK] = &gpu_cc_memnoc_gfx_clk.clkr,
|
|
[GPU_CC_PLL0] = &gpu_cc_pll0.clkr,
|
|
[GPU_CC_PLL0_OUT_EVEN] = &gpu_cc_pll0_out_even.clkr,
|
|
};
|
|
|
|
static struct gdsc *gpu_cc_milos_gdscs[] = {
|
|
[GPU_CC_CX_GDSC] = &gpu_cc_cx_gdsc,
|
|
};
|
|
|
|
static const struct qcom_reset_map gpu_cc_milos_resets[] = {
|
|
[GPU_CC_CB_BCR] = { 0x93a0 },
|
|
[GPU_CC_CX_BCR] = { 0x907c },
|
|
[GPU_CC_FAST_HUB_BCR] = { 0x93e4 },
|
|
[GPU_CC_FF_BCR] = { 0x9470 },
|
|
[GPU_CC_GMU_BCR] = { 0x9314 },
|
|
[GPU_CC_GX_BCR] = { 0x905c },
|
|
[GPU_CC_RBCPR_BCR] = { 0x91e0 },
|
|
[GPU_CC_XO_BCR] = { 0x9000 },
|
|
};
|
|
|
|
static struct clk_alpha_pll *gpu_cc_milos_plls[] = {
|
|
&gpu_cc_pll0,
|
|
};
|
|
|
|
static u32 gpu_cc_milos_critical_cbcrs[] = {
|
|
0x93a4, /* GPU_CC_CB_CLK */
|
|
0x9008, /* GPU_CC_CXO_AON_CLK */
|
|
0x9010, /* GPU_CC_DEMET_CLK */
|
|
0x9064, /* GPU_CC_GX_AHB_FF_CLK */
|
|
0x93a8, /* GPU_CC_RSCC_HUB_AON_CLK */
|
|
0x9004, /* GPU_CC_RSCC_XO_AON_CLK */
|
|
0x90cc, /* GPU_CC_SLEEP_CLK */
|
|
};
|
|
|
|
static const struct regmap_config gpu_cc_milos_regmap_config = {
|
|
.reg_bits = 32,
|
|
.reg_stride = 4,
|
|
.val_bits = 32,
|
|
.max_register = 0x95e8,
|
|
.fast_io = true,
|
|
};
|
|
|
|
static struct qcom_cc_driver_data gpu_cc_milos_driver_data = {
|
|
.alpha_plls = gpu_cc_milos_plls,
|
|
.num_alpha_plls = ARRAY_SIZE(gpu_cc_milos_plls),
|
|
.clk_cbcrs = gpu_cc_milos_critical_cbcrs,
|
|
.num_clk_cbcrs = ARRAY_SIZE(gpu_cc_milos_critical_cbcrs),
|
|
};
|
|
|
|
static const struct qcom_cc_desc gpu_cc_milos_desc = {
|
|
.config = &gpu_cc_milos_regmap_config,
|
|
.clks = gpu_cc_milos_clocks,
|
|
.num_clks = ARRAY_SIZE(gpu_cc_milos_clocks),
|
|
.resets = gpu_cc_milos_resets,
|
|
.num_resets = ARRAY_SIZE(gpu_cc_milos_resets),
|
|
.gdscs = gpu_cc_milos_gdscs,
|
|
.num_gdscs = ARRAY_SIZE(gpu_cc_milos_gdscs),
|
|
.use_rpm = true,
|
|
.driver_data = &gpu_cc_milos_driver_data,
|
|
};
|
|
|
|
static const struct of_device_id gpu_cc_milos_match_table[] = {
|
|
{ .compatible = "qcom,milos-gpucc" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, gpu_cc_milos_match_table);
|
|
|
|
static int gpu_cc_milos_probe(struct platform_device *pdev)
|
|
{
|
|
return qcom_cc_probe(pdev, &gpu_cc_milos_desc);
|
|
}
|
|
|
|
static struct platform_driver gpu_cc_milos_driver = {
|
|
.probe = gpu_cc_milos_probe,
|
|
.driver = {
|
|
.name = "gpu_cc-milos",
|
|
.of_match_table = gpu_cc_milos_match_table,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(gpu_cc_milos_driver);
|
|
|
|
MODULE_DESCRIPTION("QTI GPU_CC Milos Driver");
|
|
MODULE_LICENSE("GPL");
|