diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt8183-audio.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt8183-audio.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt8183-audio.c b/drivers/clk/mediatek/clk-mt8183-audio.c new file mode 100644 index 0000000000..716b26825e --- /dev/null +++ b/drivers/clk/mediatek/clk-mt8183-audio.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// Copyright (c) 2018 MediaTek Inc. +// Author: Weiyi Lu <weiyi.lu@mediatek.com> + +#include <linux/clk-provider.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> + +#include "clk-mtk.h" +#include "clk-gate.h" + +#include <dt-bindings/clock/mt8183-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) \ + GATE_MTK(_id, _name, _parent, &audio0_cg_regs, _shift, \ + &mtk_clk_gate_ops_no_setclr) + +#define GATE_AUDIO1(_id, _name, _parent, _shift) \ + GATE_MTK(_id, _name, _parent, &audio1_cg_regs, _shift, \ + &mtk_clk_gate_ops_no_setclr) + +static const struct mtk_gate audio_clks[] = { + /* AUDIO0 */ + GATE_AUDIO0(CLK_AUDIO_AFE, "aud_afe", "audio_sel", + 2), + GATE_AUDIO0(CLK_AUDIO_22M, "aud_22m", "aud_eng1_sel", + 8), + GATE_AUDIO0(CLK_AUDIO_24M, "aud_24m", "aud_eng2_sel", + 9), + GATE_AUDIO0(CLK_AUDIO_APLL2_TUNER, "aud_apll2_tuner", "aud_eng2_sel", + 18), + GATE_AUDIO0(CLK_AUDIO_APLL_TUNER, "aud_apll_tuner", "aud_eng1_sel", + 19), + GATE_AUDIO0(CLK_AUDIO_TDM, "aud_tdm", "apll12_divb", + 20), + GATE_AUDIO0(CLK_AUDIO_ADC, "aud_adc", "audio_sel", + 24), + GATE_AUDIO0(CLK_AUDIO_DAC, "aud_dac", "audio_sel", + 25), + GATE_AUDIO0(CLK_AUDIO_DAC_PREDIS, "aud_dac_predis", "audio_sel", + 26), + GATE_AUDIO0(CLK_AUDIO_TML, "aud_tml", "audio_sel", + 27), + /* AUDIO1 */ + GATE_AUDIO1(CLK_AUDIO_I2S1, "aud_i2s1", "audio_sel", + 4), + GATE_AUDIO1(CLK_AUDIO_I2S2, "aud_i2s2", "audio_sel", + 5), + GATE_AUDIO1(CLK_AUDIO_I2S3, "aud_i2s3", "audio_sel", + 6), + GATE_AUDIO1(CLK_AUDIO_I2S4, "aud_i2s4", "audio_sel", + 7), + GATE_AUDIO1(CLK_AUDIO_PDN_ADDA6_ADC, "aud_pdn_adda6_adc", "audio_sel", + 20), +}; + +static const struct mtk_clk_desc audio_desc = { + .clks = audio_clks, + .num_clks = ARRAY_SIZE(audio_clks), +}; + +static int clk_mt8183_audio_probe(struct platform_device *pdev) +{ + int r; + + r = mtk_clk_simple_probe(pdev); + if (r) + return r; + + r = devm_of_platform_populate(&pdev->dev); + if (r) + mtk_clk_simple_remove(pdev); + + return r; +} + +static void clk_mt8183_audio_remove(struct platform_device *pdev) +{ + of_platform_depopulate(&pdev->dev); + mtk_clk_simple_remove(pdev); +} + +static const struct of_device_id of_match_clk_mt8183_audio[] = { + { .compatible = "mediatek,mt8183-audiosys", .data = &audio_desc }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, of_match_clk_mt8183_audio); + +static struct platform_driver clk_mt8183_audio_drv = { + .probe = clk_mt8183_audio_probe, + .remove_new = clk_mt8183_audio_remove, + .driver = { + .name = "clk-mt8183-audio", + .of_match_table = of_match_clk_mt8183_audio, + }, +}; +module_platform_driver(clk_mt8183_audio_drv); +MODULE_LICENSE("GPL"); |