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0fd4939ac1
Add audsys clock driver for MediaTek MT8516 SoC. Signed-off-by: Fabien Parent <fparent@baylibre.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2019 MediaTek Inc.
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* Author: James Liao <jamesjj.liao@mediatek.com>
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* Fabien Parent <fparent@baylibre.com>
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*/
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#include <linux/clk-provider.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#include <linux/of_device.h>
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#include <linux/platform_device.h>
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#include "clk-mtk.h"
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#include "clk-gate.h"
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#include <dt-bindings/clock/mt8516-clk.h>
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static const struct mtk_gate_regs aud_cg_regs = {
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.set_ofs = 0x0,
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.clr_ofs = 0x0,
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.sta_ofs = 0x0,
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};
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#define GATE_AUD(_id, _name, _parent, _shift) { \
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.id = _id, \
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.name = _name, \
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.parent_name = _parent, \
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.regs = &aud_cg_regs, \
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.shift = _shift, \
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.ops = &mtk_clk_gate_ops_no_setclr, \
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}
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static const struct mtk_gate aud_clks[] __initconst = {
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GATE_AUD(CLK_AUD_AFE, "aud_afe", "clk26m_ck", 2),
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GATE_AUD(CLK_AUD_I2S, "aud_i2s", "i2s_infra_bck", 6),
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GATE_AUD(CLK_AUD_22M, "aud_22m", "rg_aud_engen1", 8),
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GATE_AUD(CLK_AUD_24M, "aud_24m", "rg_aud_engen2", 9),
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GATE_AUD(CLK_AUD_INTDIR, "aud_intdir", "rg_aud_spdif_in", 15),
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GATE_AUD(CLK_AUD_APLL2_TUNER, "aud_apll2_tuner", "rg_aud_engen2", 18),
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GATE_AUD(CLK_AUD_APLL_TUNER, "aud_apll_tuner", "rg_aud_engen1", 19),
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GATE_AUD(CLK_AUD_HDMI, "aud_hdmi", "apll12_div4", 20),
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GATE_AUD(CLK_AUD_SPDF, "aud_spdf", "apll12_div6", 21),
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GATE_AUD(CLK_AUD_ADC, "aud_adc", "aud_afe", 24),
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GATE_AUD(CLK_AUD_DAC, "aud_dac", "aud_afe", 25),
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GATE_AUD(CLK_AUD_DAC_PREDIS, "aud_dac_predis", "aud_afe", 26),
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GATE_AUD(CLK_AUD_TML, "aud_tml", "aud_afe", 27),
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};
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static void __init mtk_audsys_init(struct device_node *node)
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{
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struct clk_onecell_data *clk_data;
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int r;
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clk_data = mtk_alloc_clk_data(CLK_AUD_NR_CLK);
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mtk_clk_register_gates(node, aud_clks, ARRAY_SIZE(aud_clks), clk_data);
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r = of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
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if (r)
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pr_err("%s(): could not register clock provider: %d\n",
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__func__, r);
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}
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CLK_OF_DECLARE(mtk_audsys, "mediatek,mt8516-audsys", mtk_audsys_init);
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