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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018, The Linux Foundation. All rights reserved.
*/
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_clock.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,q6sstopcc-qcs404.h>
#include "clk-regmap.h"
#include "clk-branch.h"
#include "common.h"
#include "reset.h"
static struct clk_branch lcc_ahbfabric_cbc_clk = {
.halt_reg = 0x1b004,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x1b004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "lcc_ahbfabric_cbc_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch lcc_q6ss_ahbs_cbc_clk = {
.halt_reg = 0x22000,
.halt_check = BRANCH_VOTED,
.clkr = {
.enable_reg = 0x22000,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "lcc_q6ss_ahbs_cbc_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch lcc_q6ss_tcm_slave_cbc_clk = {
.halt_reg = 0x1c000,
.halt_check = BRANCH_VOTED,
.clkr = {
.enable_reg = 0x1c000,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "lcc_q6ss_tcm_slave_cbc_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch lcc_q6ss_ahbm_cbc_clk = {
.halt_reg = 0x22004,
.halt_check = BRANCH_VOTED,
.clkr = {
.enable_reg = 0x22004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "lcc_q6ss_ahbm_cbc_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch lcc_q6ss_axim_cbc_clk = {
.halt_reg = 0x1c004,
.halt_check = BRANCH_VOTED,
.clkr = {
.enable_reg = 0x1c004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "lcc_q6ss_axim_cbc_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch lcc_q6ss_bcr_sleep_clk = {
.halt_reg = 0x6004,
.halt_check = BRANCH_VOTED,
.clkr = {
.enable_reg = 0x6004,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "lcc_q6ss_bcr_sleep_clk",
.ops = &clk_branch2_ops,
},
},
};
/* TCSR clock */
static struct clk_branch tcsr_lcc_csr_cbcr_clk = {
.halt_reg = 0x8008,
.halt_check = BRANCH_VOTED,
.clkr = {
.enable_reg = 0x8008,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "tcsr_lcc_csr_cbcr_clk",
.ops = &clk_branch2_ops,
},
},
};
static struct regmap_config q6sstop_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.fast_io = true,
};
static struct clk_regmap *q6sstop_qcs404_clocks[] = {
[LCC_AHBFABRIC_CBC_CLK] = &lcc_ahbfabric_cbc_clk.clkr,
[LCC_Q6SS_AHBS_CBC_CLK] = &lcc_q6ss_ahbs_cbc_clk.clkr,
[LCC_Q6SS_TCM_SLAVE_CBC_CLK] = &lcc_q6ss_tcm_slave_cbc_clk.clkr,
[LCC_Q6SS_AHBM_CBC_CLK] = &lcc_q6ss_ahbm_cbc_clk.clkr,
[LCC_Q6SS_AXIM_CBC_CLK] = &lcc_q6ss_axim_cbc_clk.clkr,
[LCC_Q6SS_BCR_SLEEP_CLK] = &lcc_q6ss_bcr_sleep_clk.clkr,
};
static const struct qcom_reset_map q6sstop_qcs404_resets[] = {
[Q6SSTOP_BCR_RESET] = { 0x6000 },
};
static const struct qcom_cc_desc q6sstop_qcs404_desc = {
.config = &q6sstop_regmap_config,
.clks = q6sstop_qcs404_clocks,
.num_clks = ARRAY_SIZE(q6sstop_qcs404_clocks),
.resets = q6sstop_qcs404_resets,
.num_resets = ARRAY_SIZE(q6sstop_qcs404_resets),
};
static struct clk_regmap *tcsr_qcs404_clocks[] = {
[TCSR_Q6SS_LCC_CBCR_CLK] = &tcsr_lcc_csr_cbcr_clk.clkr,
};
static const struct qcom_cc_desc tcsr_qcs404_desc = {
.config = &q6sstop_regmap_config,
.clks = tcsr_qcs404_clocks,
.num_clks = ARRAY_SIZE(tcsr_qcs404_clocks),
};
static const struct of_device_id q6sstopcc_qcs404_match_table[] = {
{ .compatible = "qcom,qcs404-q6sstopcc" },
{ }
};
MODULE_DEVICE_TABLE(of, q6sstopcc_qcs404_match_table);
static int q6sstopcc_qcs404_probe(struct platform_device *pdev)
{
const struct qcom_cc_desc *desc;
int ret;
pm_runtime_enable(&pdev->dev);
ret = pm_clk_create(&pdev->dev);
if (ret)
goto disable_pm_runtime;
ret = pm_clk_add(&pdev->dev, NULL);
if (ret < 0) {
dev_err(&pdev->dev, "failed to acquire iface clock\n");
goto destroy_pm_clk;
}
q6sstop_regmap_config.name = "q6sstop_tcsr";
desc = &tcsr_qcs404_desc;
ret = qcom_cc_probe_by_index(pdev, 1, desc);
if (ret)
goto destroy_pm_clk;
q6sstop_regmap_config.name = "q6sstop_cc";
desc = &q6sstop_qcs404_desc;
ret = qcom_cc_probe_by_index(pdev, 0, desc);
if (ret)
goto destroy_pm_clk;
return 0;
destroy_pm_clk:
pm_clk_destroy(&pdev->dev);
disable_pm_runtime:
pm_runtime_disable(&pdev->dev);
return ret;
}
static int q6sstopcc_qcs404_remove(struct platform_device *pdev)
{
pm_clk_destroy(&pdev->dev);
pm_runtime_disable(&pdev->dev);
return 0;
}
static const struct dev_pm_ops q6sstopcc_pm_ops = {
SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
};
static struct platform_driver q6sstopcc_qcs404_driver = {
.probe = q6sstopcc_qcs404_probe,
.remove = q6sstopcc_qcs404_remove,
.driver = {
.name = "qcs404-q6sstopcc",
.of_match_table = q6sstopcc_qcs404_match_table,
.pm = &q6sstopcc_pm_ops,
},
};
module_platform_driver(q6sstopcc_qcs404_driver);
MODULE_DESCRIPTION("QTI QCS404 Q6SSTOP Clock Controller Driver");
MODULE_LICENSE("GPL v2");
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