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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2020, The Linux Foundation. All rights reserved.
*/
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/pm_clock.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <dt-bindings/clock/qcom,mss-sc7180.h>
#include "clk-regmap.h"
#include "clk-branch.h"
#include "common.h"
static struct clk_branch mss_axi_nav_clk = {
.halt_reg = 0x20bc,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x20bc,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "mss_axi_nav_clk",
.parent_data = &(const struct clk_parent_data){
.fw_name = "gcc_mss_nav_axi",
},
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
};
static struct clk_branch mss_axi_crypto_clk = {
.halt_reg = 0x20cc,
.halt_check = BRANCH_HALT,
.clkr = {
.enable_reg = 0x20cc,
.enable_mask = BIT(0),
.hw.init = &(struct clk_init_data){
.name = "mss_axi_crypto_clk",
.parent_data = &(const struct clk_parent_data){
.fw_name = "gcc_mss_mfab_axis",
},
.num_parents = 1,
.ops = &clk_branch2_ops,
},
},
};
static const struct regmap_config mss_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.fast_io = true,
.max_register = 0x41aa0cc,
};
static struct clk_regmap *mss_sc7180_clocks[] = {
[MSS_AXI_CRYPTO_CLK] = &mss_axi_crypto_clk.clkr,
[MSS_AXI_NAV_CLK] = &mss_axi_nav_clk.clkr,
};
static const struct qcom_cc_desc mss_sc7180_desc = {
.config = &mss_regmap_config,
.clks = mss_sc7180_clocks,
.num_clks = ARRAY_SIZE(mss_sc7180_clocks),
};
static int mss_sc7180_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, "cfg_ahb");
if (ret < 0) {
dev_err(&pdev->dev, "failed to acquire iface clock\n");
goto destroy_pm_clk;
}
ret = qcom_cc_probe(pdev, &mss_sc7180_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 mss_sc7180_remove(struct platform_device *pdev)
{
pm_clk_destroy(&pdev->dev);
pm_runtime_disable(&pdev->dev);
return 0;
}
static const struct dev_pm_ops mss_sc7180_pm_ops = {
SET_RUNTIME_PM_OPS(pm_clk_suspend, pm_clk_resume, NULL)
};
static const struct of_device_id mss_sc7180_match_table[] = {
{ .compatible = "qcom,sc7180-mss" },
{ }
};
MODULE_DEVICE_TABLE(of, mss_sc7180_match_table);
static struct platform_driver mss_sc7180_driver = {
.probe = mss_sc7180_probe,
.remove = mss_sc7180_remove,
.driver = {
.name = "sc7180-mss",
.of_match_table = mss_sc7180_match_table,
.pm = &mss_sc7180_pm_ops,
},
};
static int __init mss_sc7180_init(void)
{
return platform_driver_register(&mss_sc7180_driver);
}
subsys_initcall(mss_sc7180_init);
static void __exit mss_sc7180_exit(void)
{
platform_driver_unregister(&mss_sc7180_driver);
}
module_exit(mss_sc7180_exit);
MODULE_DESCRIPTION("QTI MSS SC7180 Driver");
MODULE_LICENSE("GPL v2");
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