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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2018 MediaTek Inc.
* Author: Owen Chen <owen.chen@mediatek.com>
*/
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include "clk-mtk.h"
#include "clk-gate.h"
#include <dt-bindings/clock/mt6765-clk.h>
static const struct mtk_gate_regs audio0_cg_regs = {
.set_ofs = 0x0,
.clr_ofs = 0x0,
.sta_ofs = 0x0,
};
static const struct mtk_gate_regs audio1_cg_regs = {
.set_ofs = 0x4,
.clr_ofs = 0x4,
.sta_ofs = 0x4,
};
#define GATE_AUDIO0(_id, _name, _parent, _shift) { \
.id = _id, \
.name = _name, \
.parent_name = _parent, \
.regs = &audio0_cg_regs, \
.shift = _shift, \
.ops = &mtk_clk_gate_ops_no_setclr, \
}
#define GATE_AUDIO1(_id, _name, _parent, _shift) { \
.id = _id, \
.name = _name, \
.parent_name = _parent, \
.regs = &audio1_cg_regs, \
.shift = _shift, \
.ops = &mtk_clk_gate_ops_no_setclr, \
}
static const struct mtk_gate audio_clks[] = {
/* AUDIO0 */
GATE_AUDIO0(CLK_AUDIO_AFE, "aud_afe", "audio_ck", 2),
GATE_AUDIO0(CLK_AUDIO_22M, "aud_22m", "aud_engen1_ck", 8),
GATE_AUDIO0(CLK_AUDIO_APLL_TUNER, "aud_apll_tuner",
"aud_engen1_ck", 19),
GATE_AUDIO0(CLK_AUDIO_ADC, "aud_adc", "audio_ck", 24),
GATE_AUDIO0(CLK_AUDIO_DAC, "aud_dac", "audio_ck", 25),
GATE_AUDIO0(CLK_AUDIO_DAC_PREDIS, "aud_dac_predis",
"audio_ck", 26),
GATE_AUDIO0(CLK_AUDIO_TML, "aud_tml", "audio_ck", 27),
/* AUDIO1 */
GATE_AUDIO1(CLK_AUDIO_I2S1_BCLK, "aud_i2s1_bclk",
"audio_ck", 4),
GATE_AUDIO1(CLK_AUDIO_I2S2_BCLK, "aud_i2s2_bclk",
"audio_ck", 5),
GATE_AUDIO1(CLK_AUDIO_I2S3_BCLK, "aud_i2s3_bclk",
"audio_ck", 6),
GATE_AUDIO1(CLK_AUDIO_I2S4_BCLK, "aud_i2s4_bclk",
"audio_ck", 7),
};
static int clk_mt6765_audio_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_AUDIO_NR_CLK);
mtk_clk_register_gates(node, audio_clks,
ARRAY_SIZE(audio_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);
return r;
}
static const struct of_device_id of_match_clk_mt6765_audio[] = {
{ .compatible = "mediatek,mt6765-audsys", },
{}
};
static struct platform_driver clk_mt6765_audio_drv = {
.probe = clk_mt6765_audio_probe,
.driver = {
.name = "clk-mt6765-audio",
.of_match_table = of_match_clk_mt6765_audio,
},
};
builtin_platform_driver(clk_mt6765_audio_drv);
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