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kernel_samsung_sm7125/drivers/clk/qcom/npucc-sm8150.c

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/*
* Copyright (c) 2017-2020, 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/delay.h>
#include <linux/reset-controller.h>
#include <dt-bindings/clock/qcom,npucc-sm8150.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.h"
#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
#define CRC_SID_FSM_CTRL 0x100c
#define CRC_SID_FSM_CTRL_SETTING 0x800000
#define CRC_MND_CFG 0x1010
#define CRC_MND_CFG_SETTING 0x15010
static DEFINE_VDD_REGULATORS(vdd_cx, VDD_NUM, 1, vdd_corner);
enum {
P_BI_TCXO,
P_CORE_BI_PLL_TEST_SE,
P_GPLL0_OUT_MAIN,
P_GPLL0_OUT_MAIN_DIV,
P_NPU_CC_PLL0_OUT_EVEN,
P_NPU_CC_PLL1_OUT_EVEN,
P_NPU_CC_CRC_DIV,
};
static const struct parent_map npu_cc_parent_map_0[] = {
{ P_BI_TCXO, 0 },
{ P_NPU_CC_PLL1_OUT_EVEN, 1 },
{ P_NPU_CC_PLL0_OUT_EVEN, 2 },
{ P_GPLL0_OUT_MAIN, 4 },
{ P_GPLL0_OUT_MAIN_DIV, 5 },
{ P_CORE_BI_PLL_TEST_SE, 7 },
};
static const char * const npu_cc_parent_names_0[] = {
"bi_tcxo",
"npu_cc_pll1_out_even",
"npu_cc_pll0_out_even",
"gcc_npu_gpll0_clk_src",
"gcc_npu_gpll0_div_clk_src",
"core_bi_pll_test_se",
};
static const struct parent_map npu_cc_parent_map_1[] = {
{ P_BI_TCXO, 0 },
{ P_NPU_CC_PLL1_OUT_EVEN, 1 },
{ P_NPU_CC_CRC_DIV, 2 },
{ P_GPLL0_OUT_MAIN, 4 },
{ P_GPLL0_OUT_MAIN_DIV, 5 },
{ P_CORE_BI_PLL_TEST_SE, 7 },
};
static const char * const npu_cc_parent_names_1[] = {
"bi_tcxo",
"npu_cc_pll1_out_even",
"npu_cc_crc_div",
"gcc_npu_gpll0_clk_src",
"gcc_npu_gpll0_div_clk_src",
"core_bi_pll_test_se",
};
static struct pll_vco trion_vco[] = {
{ 249600000, 2000000000, 0 },
};
static struct alpha_pll_config npu_cc_pll0_config = {
.l = 0x1F,
.alpha = 0x4000,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002267,
.config_ctl_hi1_val = 0x00000024,
.test_ctl_val = 0x00000000,
.test_ctl_hi_val = 0x00000002,
.test_ctl_hi1_val = 0x00000000,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x000000D0,
};
static struct alpha_pll_config npu_cc_pll0_config_sm8150_v2 = {
.l = 0x1F,
.alpha = 0x4000,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002267,
.config_ctl_hi1_val = 0x00000024,
.test_ctl_val = 0x00000000,
.test_ctl_hi_val = 0x00000000,
.test_ctl_hi1_val = 0x00000020,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x000000D0,
};
static struct clk_alpha_pll npu_cc_pll0 = {
.offset = 0x0,
.vco_table = trion_vco,
.num_vco = ARRAY_SIZE(trion_vco),
.type = TRION_PLL,
.config = &npu_cc_pll0_config,
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "npu_cc_pll0",
.parent_names = (const char *[]){ "bi_tcxo" },
.num_parents = 1,
.ops = &clk_trion_pll_ops,
.vdd_class = &vdd_cx,
.num_rate_max = VDD_NUM,
.rate_max = (unsigned long[VDD_NUM]) {
[VDD_MIN] = 615000000,
[VDD_LOW] = 1066000000,
[VDD_LOW_L1] = 1600000000,
[VDD_NOMINAL] = 2000000000},
},
},
};
static const struct clk_div_table post_div_table_trion_even[] = {
{ 0x0, 1 },
{ 0x1, 2 },
{ 0x3, 4 },
{ 0x7, 8 },
{ }
};
static struct clk_alpha_pll_postdiv npu_cc_pll0_out_even = {
.offset = 0x0,
.post_div_shift = 8,
.post_div_table = post_div_table_trion_even,
.num_post_div = ARRAY_SIZE(post_div_table_trion_even),
.width = 4,
.clkr.hw.init = &(struct clk_init_data){
.name = "npu_cc_pll0_out_even",
.parent_names = (const char *[]){ "npu_cc_pll0" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_trion_pll_postdiv_ops,
},
};
static struct alpha_pll_config npu_cc_pll1_config = {
.l = 0x24,
.alpha = 0x7555,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002267,
.config_ctl_hi1_val = 0x00000024,
.test_ctl_val = 0x00000000,
.test_ctl_hi_val = 0x00000002,
.test_ctl_hi1_val = 0x00000000,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x000000D0,
};
static struct alpha_pll_config npu_cc_pll1_config_sm8150_v2 = {
.l = 0x29,
.alpha = 0xAAAA,
.config_ctl_val = 0x20485699,
.config_ctl_hi_val = 0x00002267,
.config_ctl_hi1_val = 0x00000024,
.test_ctl_val = 0x00000000,
.test_ctl_hi_val = 0x00000000,
.test_ctl_hi1_val = 0x00000020,
.user_ctl_val = 0x00000000,
.user_ctl_hi_val = 0x00000805,
.user_ctl_hi1_val = 0x000000D0,
};
static struct clk_alpha_pll npu_cc_pll1 = {
.offset = 0x400,
.vco_table = trion_vco,
.num_vco = ARRAY_SIZE(trion_vco),
.type = TRION_PLL,
.config = &npu_cc_pll1_config,
.clkr = {
.hw.init = &(struct clk_init_data){
.name = "npu_cc_pll1",
.parent_names = (const char *[]){ "bi_tcxo" },
.num_parents = 1,
.ops = &clk_trion_pll_ops,
.vdd_class = &vdd_cx,
.num_rate_max = VDD_NUM,
.rate_max = (unsigned long[VDD_NUM]) {
[VDD_MIN] = 615000000,
[VDD_LOW] = 1066000000,
[VDD_LOW_L1] = 1600000000,
[VDD_NOMINAL] = 2000000000},
},
},
};
static struct clk_alpha_pll_postdiv npu_cc_pll1_out_even = {
.offset = 0x400,
.post_div_shift = 8,
.post_div_table = post_div_table_trion_even,
.num_post_div = ARRAY_SIZE(post_div_table_trion_even),
.width = 4,
.clkr.hw.init = &(struct clk_init_data){
.name = "npu_cc_pll1_out_even",
.parent_names = (const char *[]){ "npu_cc_pll1" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_trion_pll_postdiv_ops,
},
};
static struct clk_fixed_factor npu_cc_crc_div = {
.mult = 1,
.div = 2,
.hw.init = &(struct clk_init_data){
.name = "npu_cc_crc_div",
.parent_names = (const char *[]){ "npu_cc_pll0_out_even" },
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_fixed_factor_ops,
},
};
static const struct freq_tbl ftbl_npu_cc_cal_dp_clk_src[] = {
F(19200000, P_BI_TCXO, 1, 0, 0),
F(300000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(350000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(400000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(600000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(715000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
{ }
};
static const struct freq_tbl ftbl_npu_cc_cal_dp_clk_src_sm8150_v2[] = {
F(125000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(300000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(400000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(487000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(652000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(811000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
F(908000000, P_NPU_CC_CRC_DIV, 1, 0, 0),
{ }
};
static struct clk_rcg2 npu_cc_cal_dp_clk_src = {
.cmd_rcgr = 0x1004,
.mnd_width = 0,
.hid_width = 5,
.parent_map = npu_cc_parent_map_1,
.freq_tbl = ftbl_npu_cc_cal_dp_clk_src,
.enable_safe_config = true,
.clkr.hw.init = &(struct clk_init_data){
.name = "npu_cc_cal_dp_clk_src",
.parent_names = npu_cc_parent_names_1,
.num_parents = 6,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_ops,
.vdd_class = &vdd_cx,
.num_rate_max = VDD_NUM,
.rate_max = (unsigned long[VDD_NUM]) {
[VDD_MIN] = 9600000,
[VDD_LOWER] = 300000000,
[VDD_LOW] = 350000000,
[VDD_LOW_L1] = 400000000,
[VDD_NOMINAL] = 600000000,
[VDD_HIGH] = 715000000},
},
};
static const struct freq_tbl ftbl_npu_cc_npu_core_clk_src[] = {
F(19200000, P_BI_TCXO, 1, 0, 0),
F(100000000, P_GPLL0_OUT_MAIN, 6, 0, 0),
F(150000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
F(200000000, P_GPLL0_OUT_MAIN, 3, 0, 0),
F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
F(350000000, P_NPU_CC_PLL1_OUT_EVEN, 2, 0, 0),
{ }
};
static const struct freq_tbl ftbl_npu_cc_npu_core_clk_src_sm8150_v2[] = {
F(60000000, P_GPLL0_OUT_MAIN_DIV, 5, 0, 0),
F(100000000, P_GPLL0_OUT_MAIN, 6, 0, 0),
F(150000000, P_GPLL0_OUT_MAIN, 4, 0, 0),
F(200000000, P_NPU_CC_PLL1_OUT_EVEN, 4, 0, 0),
F(300000000, P_GPLL0_OUT_MAIN, 2, 0, 0),
F(400000000, P_NPU_CC_PLL1_OUT_EVEN, 2, 0, 0),
{ }
};
static struct clk_rcg2 npu_cc_npu_core_clk_src = {
.cmd_rcgr = 0x1030,
.mnd_width = 0,
.hid_width = 5,
.parent_map = npu_cc_parent_map_0,
.freq_tbl = ftbl_npu_cc_npu_core_clk_src,
.enable_safe_config = true,
.clkr.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_core_clk_src",
.parent_names = npu_cc_parent_names_0,
.num_parents = 6,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_rcg2_ops,
.vdd_class = &vdd_cx,
.num_rate_max = VDD_NUM,
.rate_max = (unsigned long[VDD_NUM]) {
[VDD_MIN] = 19200000,
[VDD_LOWER] = 100000000,
[VDD_LOW] = 150000000,
[VDD_LOW_L1] = 200000000,
[VDD_NOMINAL] = 300000000,
[VDD_HIGH] = 350000000},
},
};
static struct clk_branch npu_cc_armwic_core_clk = {
.halt_reg = 0x1058,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1058,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_armwic_core_clk",
.parent_names = (const char *[]){
"npu_cc_npu_core_clk_src",
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_bto_core_clk = {
.halt_reg = 0x1090,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1090,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_bto_core_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_bwmon_clk = {
.halt_reg = 0x1088,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1088,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_bwmon_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_cal_dp_cdc_clk = {
.halt_reg = 0x1068,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1068,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_cal_dp_cdc_clk",
.parent_names = (const char *[]){
"npu_cc_cal_dp_clk_src",
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_cal_dp_clk = {
.halt_reg = 0x101c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x101c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_cal_dp_clk",
.parent_names = (const char *[]){
"npu_cc_cal_dp_clk_src",
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_comp_noc_axi_clk = {
.halt_reg = 0x106c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x106c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_comp_noc_axi_clk",
.parent_names = (const char *[]){
"gcc_npu_axi_clk",
},
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_conf_noc_ahb_clk = {
.halt_reg = 0x1074,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1074,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_conf_noc_ahb_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_npu_core_apb_clk = {
.halt_reg = 0x1080,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1080,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_core_apb_clk",
.parent_names = (const char *[]){
"qdss_qmp_clk",
},
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_npu_core_atb_clk = {
.halt_reg = 0x1078,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1078,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_core_atb_clk",
.parent_names = (const char *[]){
"gcc_npu_at_clk",
},
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_npu_core_clk = {
.halt_reg = 0x1048,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1048,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_core_clk",
.parent_names = (const char *[]){
"npu_cc_npu_core_clk_src",
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_npu_core_cti_clk = {
.halt_reg = 0x107c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x107c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_core_cti_clk",
.parent_names = (const char *[]){
"gcc_npu_trig_clk",
},
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_npu_cpc_clk = {
.halt_reg = 0x1050,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1050,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_cpc_clk",
.parent_names = (const char *[]){
"npu_cc_npu_core_clk_src",
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_npu_cpc_timer_clk = {
.halt_reg = 0x105c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x105c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_npu_cpc_timer_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_perf_cnt_clk = {
.halt_reg = 0x108c,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x108c,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_perf_cnt_clk",
.parent_names = (const char *[]){
"npu_cc_cal_dp_clk_src",
},
.num_parents = 1,
.flags = CLK_SET_RATE_PARENT,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_qtimer_core_clk = {
.halt_reg = 0x1060,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1060,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_qtimer_core_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_sleep_clk = {
.halt_reg = 0x1064,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1064,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_sleep_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch npu_cc_xo_clk = {
.halt_reg = 0x3020,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x3020,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "npu_cc_xo_clk",
.flags = CLK_IS_CRITICAL,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_regmap *npu_cc_sm8150_clocks[] = {
[NPU_CC_ARMWIC_CORE_CLK] = &npu_cc_armwic_core_clk.clkr,
[NPU_CC_BTO_CORE_CLK] = &npu_cc_bto_core_clk.clkr,
[NPU_CC_BWMON_CLK] = &npu_cc_bwmon_clk.clkr,
[NPU_CC_CAL_DP_CDC_CLK] = &npu_cc_cal_dp_cdc_clk.clkr,
[NPU_CC_CAL_DP_CLK] = &npu_cc_cal_dp_clk.clkr,
[NPU_CC_CAL_DP_CLK_SRC] = &npu_cc_cal_dp_clk_src.clkr,
[NPU_CC_COMP_NOC_AXI_CLK] = &npu_cc_comp_noc_axi_clk.clkr,
[NPU_CC_CONF_NOC_AHB_CLK] = &npu_cc_conf_noc_ahb_clk.clkr,
[NPU_CC_NPU_CORE_APB_CLK] = &npu_cc_npu_core_apb_clk.clkr,
[NPU_CC_NPU_CORE_ATB_CLK] = &npu_cc_npu_core_atb_clk.clkr,
[NPU_CC_NPU_CORE_CLK] = &npu_cc_npu_core_clk.clkr,
[NPU_CC_NPU_CORE_CLK_SRC] = &npu_cc_npu_core_clk_src.clkr,
[NPU_CC_NPU_CORE_CTI_CLK] = &npu_cc_npu_core_cti_clk.clkr,
[NPU_CC_NPU_CPC_CLK] = &npu_cc_npu_cpc_clk.clkr,
[NPU_CC_NPU_CPC_TIMER_CLK] = &npu_cc_npu_cpc_timer_clk.clkr,
[NPU_CC_PERF_CNT_CLK] = &npu_cc_perf_cnt_clk.clkr,
[NPU_CC_PLL0] = &npu_cc_pll0.clkr,
[NPU_CC_PLL0_OUT_EVEN] = &npu_cc_pll0_out_even.clkr,
[NPU_CC_PLL1] = &npu_cc_pll1.clkr,
[NPU_CC_PLL1_OUT_EVEN] = &npu_cc_pll1_out_even.clkr,
[NPU_CC_QTIMER_CORE_CLK] = &npu_cc_qtimer_core_clk.clkr,
[NPU_CC_SLEEP_CLK] = &npu_cc_sleep_clk.clkr,
[NPU_CC_XO_CLK] = &npu_cc_xo_clk.clkr,
};
static const struct qcom_reset_map npu_cc_sm8150_resets[] = {
[NPU_CC_CAL_DP_BCR] = { 0x1000 },
[NPU_CC_NPU_CORE_BCR] = { 0x1024 },
};
static const struct regmap_config npu_cc_sm8150_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0x8000,
.fast_io = true,
};
static const struct qcom_cc_desc npu_cc_sm8150_desc = {
.config = &npu_cc_sm8150_regmap_config,
.clks = npu_cc_sm8150_clocks,
.num_clks = ARRAY_SIZE(npu_cc_sm8150_clocks),
.resets = npu_cc_sm8150_resets,
.num_resets = ARRAY_SIZE(npu_cc_sm8150_resets),
};
static struct clk_regmap *npucc_sm8150_critical_clocks[] = {
&npu_cc_xo_clk.clkr,
};
static const struct qcom_cc_critical_desc npucc_sm8150_critical_desc = {
.clks = npucc_sm8150_critical_clocks,
.num_clks = ARRAY_SIZE(npucc_sm8150_critical_clocks),
};
static const struct of_device_id npu_cc_sm8150_match_table[] = {
{ .compatible = "qcom,npucc-sm8150" },
{ .compatible = "qcom,npucc-sm8150-v2" },
{ .compatible = "qcom,npucc-sa8155" },
{ .compatible = "qcom,npucc-sa8155-v2" },
{ }
};
MODULE_DEVICE_TABLE(of, npu_cc_sm8150_match_table);
static int npucc_sa8150_resume(struct device *dev)
{
return qcom_cc_enable_critical_clks(&npucc_sm8150_critical_desc);
}
static const struct dev_pm_ops npucc_sa8150_pm_ops = {
.restore_early = npucc_sa8150_resume,
};
static void npu_cc_sm8150_fixup_sm8150v2(struct regmap *regmap)
{
npu_cc_pll0.config = &npu_cc_pll0_config_sm8150_v2;
npu_cc_pll1.config = &npu_cc_pll1_config_sm8150_v2;
npu_cc_cal_dp_clk_src.freq_tbl = ftbl_npu_cc_cal_dp_clk_src_sm8150_v2;
npu_cc_cal_dp_clk_src.clkr.hw.init->rate_max[VDD_MIN] = 0;
npu_cc_cal_dp_clk_src.clkr.hw.init->rate_max[VDD_LOW] = 400000000;
npu_cc_cal_dp_clk_src.clkr.hw.init->rate_max[VDD_LOW_L1] = 487000000;
npu_cc_cal_dp_clk_src.clkr.hw.init->rate_max[VDD_NOMINAL] = 652000000;
npu_cc_cal_dp_clk_src.clkr.hw.init->rate_max[VDD_HIGH] = 811000000;
npu_cc_cal_dp_clk_src.clkr.hw.init->rate_max[VDD_HIGH_L1] = 908000000;
npu_cc_npu_core_clk_src.freq_tbl =
ftbl_npu_cc_npu_core_clk_src_sm8150_v2;
npu_cc_npu_core_clk_src.clkr.hw.init->rate_max[VDD_MIN] = 0;
npu_cc_npu_core_clk_src.clkr.hw.init->rate_max[VDD_HIGH] = 400000000;
}
static int npu_cc_sm8150_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,npucc-sm8150-v2") ||
!strcmp(compat, "qcom,npucc-sa8155-v2"))
npu_cc_sm8150_fixup_sm8150v2(regmap);
if (!strcmp(compat, "qcom,npucc-sa8155") ||
!strcmp(compat, "qcom,npucc-sa8155-v2"))
pdev->dev.driver->pm = &npucc_sa8150_pm_ops;
return 0;
}
struct regulator *vdd_gdsc;
static int enable_npu_crc(struct regmap *regmap)
{
int ret = 0;
/* Set npu_cc_cal_cp_clk to the lowest supported frequency */
clk_set_rate(npu_cc_cal_dp_clk.clkr.hw.clk,
clk_round_rate(npu_cc_cal_dp_clk_src.clkr.hw.clk, 1));
/* Turn on the NPU GDSC */
ret = regulator_enable(vdd_gdsc);
if (ret) {
pr_err("Failed to enable the NPU GDSC during CRC sequence\n");
return ret;
}
/* Enable npu_cc_cal_cp_clk */
ret = clk_prepare_enable(npu_cc_cal_dp_clk.clkr.hw.clk);
if (ret) {
pr_err("Failed to enable npu_cc_cal_dp_clk during CRC sequence\n");
return ret;
}
/* Enable MND RC */
regmap_write(regmap, CRC_MND_CFG, CRC_MND_CFG_SETTING);
regmap_write(regmap, CRC_SID_FSM_CTRL, CRC_SID_FSM_CTRL_SETTING);
/* Wait for 16 cycles before continuing */
udelay(1);
/* Disable npu_cc_cal_cp_clk */
clk_disable_unprepare(npu_cc_cal_dp_clk.clkr.hw.clk);
/* Turn off the NPU GDSC */
regulator_disable(vdd_gdsc);
return ret;
}
static int npu_cc_sm8150_probe(struct platform_device *pdev)
{
struct regmap *regmap;
int ret = 0;
regmap = qcom_cc_map(pdev, &npu_cc_sm8150_desc);
if (IS_ERR(regmap)) {
pr_err("Failed to map the npu 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]);
}
vdd_gdsc = devm_regulator_get(&pdev->dev, "vdd_gdsc");
if (IS_ERR(vdd_gdsc)) {
if (!(PTR_ERR(vdd_gdsc) == -EPROBE_DEFER))
dev_err(&pdev->dev,
"Unable to get vdd_gdsc regulator\n");
return PTR_ERR(vdd_gdsc);
}
ret = npu_cc_sm8150_fixup(pdev, regmap);
if (ret)
return ret;
clk_trion_pll_configure(&npu_cc_pll0, regmap, npu_cc_pll0.config);
clk_trion_pll_configure(&npu_cc_pll1, regmap, npu_cc_pll1.config);
/* Register the fixed factor clock for CRC divide */
ret = devm_clk_hw_register(&pdev->dev, &npu_cc_crc_div.hw);
if (ret) {
dev_err(&pdev->dev, "Failed to register CRC divide clock\n");
return ret;
}
ret = qcom_cc_really_probe(pdev, &npu_cc_sm8150_desc, regmap);
if (ret) {
dev_err(&pdev->dev, "Failed to register NPU CC clocks\n");
return ret;
}
ret = enable_npu_crc(regmap);
if (ret) {
dev_err(&pdev->dev, "Failed to enable CRC for NPU cal RCG\n");
return ret;
}
dev_info(&pdev->dev, "Registered NPU CC clocks\n");
return ret;
}
static struct platform_driver npu_cc_sm8150_driver = {
.probe = npu_cc_sm8150_probe,
.driver = {
.name = "npu_cc-sm8150",
.of_match_table = npu_cc_sm8150_match_table,
},
};
static int __init npu_cc_sm8150_init(void)
{
return platform_driver_register(&npu_cc_sm8150_driver);
}
subsys_initcall(npu_cc_sm8150_init);
static void __exit npu_cc_sm8150_exit(void)
{
platform_driver_unregister(&npu_cc_sm8150_driver);
}
module_exit(npu_cc_sm8150_exit);
MODULE_DESCRIPTION("QTI NPU_CC SM8150 Driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:npu_cc-sm8150");