113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (c) 2019 MediaTek Inc.
|
|
*/
|
|
|
|
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include "clk-mtk.h"
|
|
#include "clk-gate.h"
|
|
|
|
#include <dt-bindings/clock/mt6853-clk.h>
|
|
|
|
#define MT_CLKMGR_MODULE_INIT 0
|
|
|
|
#define MT_CCF_BRINGUP 1
|
|
|
|
#define INV_OFS -1
|
|
|
|
/* get spm power status struct to register inside clk_data */
|
|
static struct pwr_status pwr_stat = GATE_PWR_STAT(INV_OFS, INV_OFS,
|
|
0x00b0, BIT(15), 0);
|
|
|
|
static const struct mtk_gate_regs imps_cg_regs = {
|
|
.set_ofs = 0xe08,
|
|
.clr_ofs = 0xe04,
|
|
.sta_ofs = 0xe00,
|
|
};
|
|
|
|
#define GATE_IMPS(_id, _name, _parent, _shift) { \
|
|
.id = _id, \
|
|
.name = _name, \
|
|
.parent_name = _parent, \
|
|
.regs = &imps_cg_regs, \
|
|
.shift = _shift, \
|
|
.ops = &mtk_clk_gate_ops_setclr, \
|
|
.pwr_stat = &pwr_stat, \
|
|
}
|
|
|
|
static const struct mtk_gate imps_clks[] = {
|
|
GATE_IMPS(CLK_IMPS_AP_CLOCK_RO_I2C5, "imps_ap_i2c5",
|
|
"i2c_pseudo"/* parent */, 0),
|
|
GATE_IMPS(CLK_IMPS_AP_CLOCK_RO_I2C7, "imps_ap_i2c7",
|
|
"i2c_pseudo"/* parent */, 1),
|
|
GATE_IMPS(CLK_IMPS_AP_CLOCK_RO_I2C8, "imps_ap_i2c8",
|
|
"i2c_pseudo"/* parent */, 2),
|
|
GATE_IMPS(CLK_IMPS_AP_CLOCK_RO_I2C9, "imps_ap_i2c9",
|
|
"i2c_pseudo"/* parent */, 3),
|
|
};
|
|
|
|
static int clk_mt6853_imps_probe(struct platform_device *pdev)
|
|
{
|
|
struct clk_onecell_data *clk_data;
|
|
int r;
|
|
struct device_node *node = pdev->dev.of_node;
|
|
|
|
#if MT_CCF_BRINGUP
|
|
pr_notice("%s init begin\n", __func__);
|
|
#endif
|
|
|
|
clk_data = mtk_alloc_clk_data(CLK_IMPS_NR_CLK);
|
|
|
|
mtk_clk_register_gates(node, imps_clks, ARRAY_SIZE(imps_clks),
|
|
clk_data);
|
|
|
|
r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
|
|
|
|
if (r)
|
|
pr_err("%s(): could not register clock provider: %d\n",
|
|
__func__, r);
|
|
|
|
#if MT_CCF_BRINGUP
|
|
pr_notice("%s init end\n", __func__);
|
|
#endif
|
|
|
|
return r;
|
|
}
|
|
|
|
static const struct of_device_id of_match_clk_mt6853_imps[] = {
|
|
{ .compatible = "mediatek,mt6853-imp_iic_wrap_s", },
|
|
{}
|
|
};
|
|
|
|
#if MT_CLKMGR_MODULE_INIT
|
|
|
|
static struct platform_driver clk_mt6853_imps_drv = {
|
|
.probe = clk_mt6853_imps_probe,
|
|
.driver = {
|
|
.name = "clk-mt6853-imps",
|
|
.of_match_table = of_match_clk_mt6853_imps,
|
|
},
|
|
};
|
|
|
|
builtin_platform_driver(clk_mt6853_imps_drv);
|
|
|
|
#else
|
|
|
|
static struct platform_driver clk_mt6853_imps_drv = {
|
|
.probe = clk_mt6853_imps_probe,
|
|
.driver = {
|
|
.name = "clk-mt6853-imps",
|
|
.of_match_table = of_match_clk_mt6853_imps,
|
|
},
|
|
};
|
|
static int __init clk_mt6853_imps_platform_init(void)
|
|
{
|
|
return platform_driver_register(&clk_mt6853_imps_drv);
|
|
}
|
|
arch_initcall(clk_mt6853_imps_platform_init);
|
|
|
|
#endif /* MT_CLKMGR_MODULE_INIT */
|