116 lines
2.4 KiB
C
116 lines
2.4 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2019 MediaTek Inc.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/clk-provider.h>
|
||
|
|
#include <linux/of_device.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
|
||
|
|
#include "clk-mtk.h"
|
||
|
|
#include "clk-gate.h"
|
||
|
|
|
||
|
|
#include <dt-bindings/clock/mt6877-clk.h>
|
||
|
|
|
||
|
|
#define MT_CCF_BRINGUP 1
|
||
|
|
|
||
|
|
/* Regular Number Definition */
|
||
|
|
#define INV_OFS -1
|
||
|
|
#define INV_BIT -1
|
||
|
|
|
||
|
|
/* get spm power status struct to register inside clk_data */
|
||
|
|
static struct pwr_status vde2_pwr_stat = GATE_PWR_STAT(0xEF0,
|
||
|
|
0xEF4, INV_OFS, BIT(12), BIT(12));
|
||
|
|
|
||
|
|
static const struct mtk_gate_regs vde2_cg_regs = {
|
||
|
|
.set_ofs = 0x0,
|
||
|
|
.clr_ofs = 0x4,
|
||
|
|
.sta_ofs = 0x0,
|
||
|
|
};
|
||
|
|
|
||
|
|
#define GATE_VDE2(_id, _name, _parent, _shift) { \
|
||
|
|
.id = _id, \
|
||
|
|
.name = _name, \
|
||
|
|
.parent_name = _parent, \
|
||
|
|
.regs = &vde2_cg_regs, \
|
||
|
|
.shift = _shift, \
|
||
|
|
.ops = &mtk_clk_gate_ops_setclr_inv, \
|
||
|
|
.pwr_stat = &vde2_pwr_stat, \
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct mtk_gate vde2_clks[] = {
|
||
|
|
GATE_VDE2(CLK_VDE2_VDEC_CKEN, "vde2_vdec_cken",
|
||
|
|
"vdec_ck"/* parent */, 0),
|
||
|
|
};
|
||
|
|
|
||
|
|
static int clk_mt6877_vde2_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_VDE2_NR_CLK);
|
||
|
|
|
||
|
|
mtk_clk_register_gates(node, vde2_clks, ARRAY_SIZE(vde2_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_mt6877_vde[] = {
|
||
|
|
{
|
||
|
|
.compatible = "mediatek,mt6877-vdecsys",
|
||
|
|
.data = clk_mt6877_vde2_probe,
|
||
|
|
}, {
|
||
|
|
/* sentinel */
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
static int clk_mt6877_vde_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
int (*clk_probe)(struct platform_device *pd);
|
||
|
|
int r;
|
||
|
|
|
||
|
|
clk_probe = of_device_get_match_data(&pdev->dev);
|
||
|
|
if (!clk_probe)
|
||
|
|
return -EINVAL;
|
||
|
|
|
||
|
|
r = clk_probe(pdev);
|
||
|
|
if (r)
|
||
|
|
dev_err(&pdev->dev,
|
||
|
|
"could not register clock provider: %s: %d\n",
|
||
|
|
pdev->name, r);
|
||
|
|
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct platform_driver clk_mt6877_vde_drv = {
|
||
|
|
.probe = clk_mt6877_vde_probe,
|
||
|
|
.driver = {
|
||
|
|
.name = "clk-mt6877-vde",
|
||
|
|
.of_match_table = of_match_clk_mt6877_vde,
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init clk_mt6877_vde_init(void)
|
||
|
|
{
|
||
|
|
return platform_driver_register(&clk_mt6877_vde_drv);
|
||
|
|
}
|
||
|
|
arch_initcall(clk_mt6877_vde_init);
|
||
|
|
|