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/* Copyright (c) 2017 MediaTek Inc.
* Author: Kevin Chen <kevin-cw.chen@mediatek.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include <dt-bindings/clock/mt6797-clk.h>
#include "clk-mtk.h"
#include "clk-gate.h"
static const struct mtk_gate_regs img_cg_regs = {
.set_ofs = 0x0004,
.clr_ofs = 0x0008,
.sta_ofs = 0x0000,
};
#define GATE_IMG(_id, _name, _parent, _shift) { \
.id = _id, \
.name = _name, \
.parent_name = _parent, \
.regs = &img_cg_regs, \
.shift = _shift, \
.ops = &mtk_clk_gate_ops_setclr, \
}
static const struct mtk_gate img_clks[] = {
GATE_IMG(CLK_IMG_FDVT, "img_fdvt", "mm_sel", 11),
GATE_IMG(CLK_IMG_DPE, "img_dpe", "mm_sel", 10),
GATE_IMG(CLK_IMG_DIP, "img_dip", "mm_sel", 6),
GATE_IMG(CLK_IMG_LARB6, "img_larb6", "mm_sel", 0),
};
static const struct of_device_id of_match_clk_mt6797_img[] = {
{ .compatible = "mediatek,mt6797-imgsys", },
{}
};
static int clk_mt6797_img_probe(struct platform_device *pdev)
{
struct clk_onecell_data *clk_data;
int r;
struct device_node *node = pdev->dev.of_node;
clk_data = mtk_alloc_clk_data(CLK_IMG_NR);
mtk_clk_register_gates(node, img_clks, ARRAY_SIZE(img_clks),
clk_data);
r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
if (r)
dev_err(&pdev->dev,
"could not register clock provider: %s: %d\n",
pdev->name, r);
return r;
}
static struct platform_driver clk_mt6797_img_drv = {
.probe = clk_mt6797_img_probe,
.driver = {
.name = "clk-mt6797-img",
.of_match_table = of_match_clk_mt6797_img,
},
};
builtin_platform_driver(clk_mt6797_img_drv);
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