diff options
Diffstat (limited to 'drivers/clk/mediatek/clk-mt7622-aud.c')
| -rw-r--r-- | drivers/clk/mediatek/clk-mt7622-aud.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt7622-aud.c b/drivers/clk/mediatek/clk-mt7622-aud.c new file mode 100644 index 000000000000..fad7d9fc53ba --- /dev/null +++ b/drivers/clk/mediatek/clk-mt7622-aud.c @@ -0,0 +1,195 @@ +/* + * Copyright (c) 2017 MediaTek Inc. + * Author: Chen Zhong <chen.zhong@mediatek.com> + * Sean Wang <sean.wang@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/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/mt7622-clk.h> + +#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, \ + } + +#define GATE_AUDIO2(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &audio2_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr, \ + } + +#define GATE_AUDIO3(_id, _name, _parent, _shift) { \ + .id = _id, \ + .name = _name, \ + .parent_name = _parent, \ + .regs = &audio3_cg_regs, \ + .shift = _shift, \ + .ops = &mtk_clk_gate_ops_no_setclr, \ + } + +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 = 0x10, + .clr_ofs = 0x10, + .sta_ofs = 0x10, +}; + +static const struct mtk_gate_regs audio2_cg_regs = { + .set_ofs = 0x14, + .clr_ofs = 0x14, + .sta_ofs = 0x14, +}; + +static const struct mtk_gate_regs audio3_cg_regs = { + .set_ofs = 0x634, + .clr_ofs = 0x634, + .sta_ofs = 0x634, +}; + +static const struct mtk_gate audio_clks[] = { + /* AUDIO0 */ + GATE_AUDIO0(CLK_AUDIO_AFE, "audio_afe", "rtc", 2), + GATE_AUDIO0(CLK_AUDIO_HDMI, "audio_hdmi", "apll1_ck_sel", 20), + GATE_AUDIO0(CLK_AUDIO_SPDF, "audio_spdf", "apll1_ck_sel", 21), + GATE_AUDIO0(CLK_AUDIO_APLL, "audio_apll", "apll1_ck_sel", 23), + /* AUDIO1 */ + GATE_AUDIO1(CLK_AUDIO_I2SIN1, "audio_i2sin1", "a1sys_hp_sel", 0), + GATE_AUDIO1(CLK_AUDIO_I2SIN2, "audio_i2sin2", "a1sys_hp_sel", 1), + GATE_AUDIO1(CLK_AUDIO_I2SIN3, "audio_i2sin3", "a1sys_hp_sel", 2), + GATE_AUDIO1(CLK_AUDIO_I2SIN4, "audio_i2sin4", "a1sys_hp_sel", 3), + GATE_AUDIO1(CLK_AUDIO_I2SO1, "audio_i2so1", "a1sys_hp_sel", 6), + GATE_AUDIO1(CLK_AUDIO_I2SO2, "audio_i2so2", "a1sys_hp_sel", 7), + GATE_AUDIO1(CLK_AUDIO_I2SO3, "audio_i2so3", "a1sys_hp_sel", 8), + GATE_AUDIO1(CLK_AUDIO_I2SO4, "audio_i2so4", "a1sys_hp_sel", 9), + GATE_AUDIO1(CLK_AUDIO_ASRCI1, "audio_asrci1", "asm_h_sel", 12), + GATE_AUDIO1(CLK_AUDIO_ASRCI2, "audio_asrci2", "asm_h_sel", 13), + GATE_AUDIO1(CLK_AUDIO_ASRCO1, "audio_asrco1", "asm_h_sel", 14), + GATE_AUDIO1(CLK_AUDIO_ASRCO2, "audio_asrco2", "asm_h_sel", 15), + GATE_AUDIO1(CLK_AUDIO_INTDIR, "audio_intdir", "intdir_sel", 20), + GATE_AUDIO1(CLK_AUDIO_A1SYS, "audio_a1sys", "a1sys_hp_sel", 21), + GATE_AUDIO1(CLK_AUDIO_A2SYS, "audio_a2sys", "a2sys_hp_sel", 22), + /* AUDIO2 */ + GATE_AUDIO2(CLK_AUDIO_UL1, "audio_ul1", "a1sys_hp_sel", 0), + GATE_AUDIO2(CLK_AUDIO_UL2, "audio_ul2", "a1sys_hp_sel", 1), + GATE_AUDIO2(CLK_AUDIO_UL3, "audio_ul3", "a1sys_hp_sel", 2), + GATE_AUDIO2(CLK_AUDIO_UL4, "audio_ul4", "a1sys_hp_sel", 3), + GATE_AUDIO2(CLK_AUDIO_UL5, "audio_ul5", "a1sys_hp_sel", 4), + GATE_AUDIO2(CLK_AUDIO_UL6, "audio_ul6", "a1sys_hp_sel", 5), + GATE_AUDIO2(CLK_AUDIO_DL1, "audio_dl1", "a1sys_hp_sel", 6), + GATE_AUDIO2(CLK_AUDIO_DL2, "audio_dl2", "a1sys_hp_sel", 7), + GATE_AUDIO2(CLK_AUDIO_DL3, "audio_dl3", "a1sys_hp_sel", 8), + GATE_AUDIO2(CLK_AUDIO_DL4, "audio_dl4", "a1sys_hp_sel", 9), + GATE_AUDIO2(CLK_AUDIO_DL5, "audio_dl5", "a1sys_hp_sel", 10), + GATE_AUDIO2(CLK_AUDIO_DL6, "audio_dl6", "a1sys_hp_sel", 11), + GATE_AUDIO2(CLK_AUDIO_DLMCH, "audio_dlmch", "a1sys_hp_sel", 12), + GATE_AUDIO2(CLK_AUDIO_ARB1, "audio_arb1", "a1sys_hp_sel", 13), + GATE_AUDIO2(CLK_AUDIO_AWB, "audio_awb", "a1sys_hp_sel", 14), + GATE_AUDIO2(CLK_AUDIO_AWB2, "audio_awb2", "a1sys_hp_sel", 15), + GATE_AUDIO2(CLK_AUDIO_DAI, "audio_dai", "a1sys_hp_sel", 16), + GATE_AUDIO2(CLK_AUDIO_MOD, "audio_mod", "a1sys_hp_sel", 17), + /* AUDIO3 */ + GATE_AUDIO3(CLK_AUDIO_ASRCI3, "audio_asrci3", "asm_h_sel", 2), + GATE_AUDIO3(CLK_AUDIO_ASRCI4, "audio_asrci4", "asm_h_sel", 3), + GATE_AUDIO3(CLK_AUDIO_ASRCO3, "audio_asrco3", "asm_h_sel", 6), + GATE_AUDIO3(CLK_AUDIO_ASRCO4, "audio_asrco4", "asm_h_sel", 7), + GATE_AUDIO3(CLK_AUDIO_MEM_ASRC1, "audio_mem_asrc1", "asm_h_sel", 10), + GATE_AUDIO3(CLK_AUDIO_MEM_ASRC2, "audio_mem_asrc2", "asm_h_sel", 11), + GATE_AUDIO3(CLK_AUDIO_MEM_ASRC3, "audio_mem_asrc3", "asm_h_sel", 12), + GATE_AUDIO3(CLK_AUDIO_MEM_ASRC4, "audio_mem_asrc4", "asm_h_sel", 13), + GATE_AUDIO3(CLK_AUDIO_MEM_ASRC5, "audio_mem_asrc5", "asm_h_sel", 14), +}; + +static int clk_mt7622_audiosys_init(struct platform_device *pdev) +{ + struct clk_onecell_data *clk_data; + struct device_node *node = pdev->dev.of_node; + int r; + + 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) + dev_err(&pdev->dev, + "could not register clock provider: %s: %d\n", + pdev->name, r); + + return r; +} + +static const struct of_device_id of_match_clk_mt7622_aud[] = { + { + .compatible = "mediatek,mt7622-audsys", + .data = clk_mt7622_audiosys_init, + }, { + /* sentinel */ + } +}; + +static int clk_mt7622_aud_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_mt7622_aud_drv = { + .probe = clk_mt7622_aud_probe, + .driver = { + .name = "clk-mt7622-aud", + .of_match_table = of_match_clk_mt7622_aud, + }, +}; + +builtin_platform_driver(clk_mt7622_aud_drv); |