171 строка
3.8 KiB
C
171 строка
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2019, Linaro Ltd.
|
|
*/
|
|
|
|
#include <linux/bitops.h>
|
|
#include <linux/err.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/module.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/pm_clock.h>
|
|
#include <linux/pm_runtime.h>
|
|
#include <linux/regmap.h>
|
|
|
|
#include <dt-bindings/clock/qcom,turingcc-qcs404.h>
|
|
|
|
#include "clk-regmap.h"
|
|
#include "clk-branch.h"
|
|
#include "common.h"
|
|
#include "reset.h"
|
|
|
|
static struct clk_branch turing_wrapper_aon_cbcr = {
|
|
.halt_reg = 0x5098,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0x5098,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(struct clk_init_data) {
|
|
.name = "turing_wrapper_aon_clk",
|
|
.ops = &clk_branch2_aon_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch turing_q6ss_ahbm_aon_cbcr = {
|
|
.halt_reg = 0x9000,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0x9000,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(struct clk_init_data) {
|
|
.name = "turing_q6ss_ahbm_aon_cbcr",
|
|
.ops = &clk_branch2_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch turing_q6ss_q6_axim_clk = {
|
|
.halt_reg = 0xb000,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0xb000,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(struct clk_init_data) {
|
|
.name = "turing_q6ss_q6_axim_clk",
|
|
.ops = &clk_branch2_aon_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch turing_q6ss_ahbs_aon_cbcr = {
|
|
.halt_reg = 0x10000,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0x10000,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(struct clk_init_data) {
|
|
.name = "turing_q6ss_ahbs_aon_clk",
|
|
.ops = &clk_branch2_aon_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_branch turing_wrapper_qos_ahbs_aon_cbcr = {
|
|
.halt_reg = 0x11014,
|
|
.halt_check = BRANCH_HALT,
|
|
.clkr = {
|
|
.enable_reg = 0x11014,
|
|
.enable_mask = BIT(0),
|
|
.hw.init = &(struct clk_init_data) {
|
|
.name = "turing_wrapper_qos_ahbs_aon_clk",
|
|
.ops = &clk_branch2_aon_ops,
|
|
},
|
|
},
|
|
};
|
|
|
|
static struct clk_regmap *turingcc_clocks[] = {
|
|
[TURING_WRAPPER_AON_CLK] = &turing_wrapper_aon_cbcr.clkr,
|
|
[TURING_Q6SS_AHBM_AON_CLK] = &turing_q6ss_ahbm_aon_cbcr.clkr,
|
|
[TURING_Q6SS_Q6_AXIM_CLK] = &turing_q6ss_q6_axim_clk.clkr,
|
|
[TURING_Q6SS_AHBS_AON_CLK] = &turing_q6ss_ahbs_aon_cbcr.clkr,
|
|
[TURING_WRAPPER_QOS_AHBS_AON_CLK] = &turing_wrapper_qos_ahbs_aon_cbcr.clkr,
|
|
};
|
|
|
|
static const struct regmap_config turingcc_regmap_config = {
|
|
.reg_bits = 32,
|
|
.reg_stride = 4,
|
|
.val_bits = 32,
|
|
.max_register = 0x30000,
|
|
.fast_io = true,
|
|
};
|
|
|
|
static const struct qcom_cc_desc turingcc_desc = {
|
|
.config = &turingcc_regmap_config,
|
|
.clks = turingcc_clocks,
|
|
.num_clks = ARRAY_SIZE(turingcc_clocks),
|
|
};
|
|
|
|
static int turingcc_probe(struct platform_device *pdev)
|
|
{
|
|
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;
|
|
}
|
|
|
|
ret = qcom_cc_probe(pdev, &turingcc_desc);
|
|
if (ret < 0)
|
|
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 turingcc_remove(struct platform_device *pdev)
|
|
{
|
|
pm_clk_destroy(&pdev->dev);
|
|
pm_runtime_disable(&pdev->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct dev_pm_ops turingcc_pm_ops = {
|
|
SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
|
|
};
|
|
|
|
static const struct of_device_id turingcc_match_table[] = {
|
|
{ .compatible = "qcom,qcs404-turingcc" },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(of, turingcc_match_table);
|
|
|
|
static struct platform_driver turingcc_driver = {
|
|
.probe = turingcc_probe,
|
|
.remove = turingcc_remove,
|
|
.driver = {
|
|
.name = "qcs404-turingcc",
|
|
.of_match_table = turingcc_match_table,
|
|
.pm = &turingcc_pm_ops,
|
|
},
|
|
};
|
|
|
|
module_platform_driver(turingcc_driver);
|
|
|
|
MODULE_DESCRIPTION("Qualcomm QCS404 Turing Clock Controller");
|
|
MODULE_LICENSE("GPL v2");
|