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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018 MediaTek Inc.
* Author: Sean Wang <sean.wang@mediatek.com>
*
*/
#include <linux/clk-provider.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-gate.h"
#include <dt-bindings/clock/mt2701-clk.h>
#define GATE_G3D(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &g3d_cg_regs, _shift, &mtk_clk_gate_ops_setclr)
static const struct mtk_gate_regs g3d_cg_regs = {
.sta_ofs = 0x0,
.set_ofs = 0x4,
.clr_ofs = 0x8,
};
static const struct mtk_gate g3d_clks[] = {
GATE_G3D(CLK_G3DSYS_CORE, "g3d_core", "mfg_sel", 0),
};
static u16 rst_ofs[] = { 0xc, };
static const struct mtk_clk_rst_desc clk_rst_desc = {
.version = MTK_RST_SIMPLE,
.rst_bank_ofs = rst_ofs,
.rst_bank_nr = ARRAY_SIZE(rst_ofs),
};
static int clk_mt2701_g3dsys_init(struct platform_device *pdev)
{
struct clk_hw_onecell_data *clk_data;
struct device_node *node = pdev->dev.of_node;
int r;
clk_data = mtk_alloc_clk_data(CLK_G3DSYS_NR);
mtk_clk_register_gates(node, g3d_clks, ARRAY_SIZE(g3d_clks),
clk_data);
r = of_clk_add_hw_provider(node, of_clk_hw_onecell_get, clk_data);
if (r)
dev_err(&pdev->dev,
"could not register clock provider: %s: %d\n",
pdev->name, r);
mtk_register_reset_controller_with_dev(&pdev->dev, &clk_rst_desc);
return r;
}
static const struct of_device_id of_match_clk_mt2701_g3d[] = {
{
.compatible = "mediatek,mt2701-g3dsys",
.data = clk_mt2701_g3dsys_init,
}, {
/* sentinel */
}
};
static int clk_mt2701_g3d_probe(struct platform_device *pdev)
{
int (*clk_init)(struct platform_device *);
int r;
clk_init = of_device_get_match_data(&pdev->dev);
if (!clk_init)
return -EINVAL;
r = clk_init(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_mt2701_g3d_drv = {
.probe = clk_mt2701_g3d_probe,
.driver = {
.name = "clk-mt2701-g3d",
.of_match_table = of_match_clk_mt2701_g3d,
},
};
builtin_platform_driver(clk_mt2701_g3d_drv);
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