/* * mt2701-afe-clock-ctrl.c -- Mediatek 2701 afe clock ctrl * * Copyright (c) 2016 MediaTek Inc. * Author: Garlic Tseng * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 and * only 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 #include #include #include "mt2701-afe-common.h" #include "mt2701-afe-clock-ctrl.h" static const char *aud_clks[MT2701_CLOCK_NUM] = { [MT2701_AUD_INFRA_SYS_AUDIO] = "infra_sys_audio_clk", [MT2701_AUD_AUD_MUX1_SEL] = "top_audio_mux1_sel", [MT2701_AUD_AUD_MUX2_SEL] = "top_audio_mux2_sel", [MT2701_AUD_AUD_MUX1_DIV] = "top_audio_mux1_div", [MT2701_AUD_AUD_MUX2_DIV] = "top_audio_mux2_div", [MT2701_AUD_AUD_48K_TIMING] = "top_audio_48k_timing", [MT2701_AUD_AUD_44K_TIMING] = "top_audio_44k_timing", [MT2701_AUD_AUDPLL_MUX_SEL] = "top_audpll_mux_sel", [MT2701_AUD_APLL_SEL] = "top_apll_sel", [MT2701_AUD_AUD1PLL_98M] = "top_aud1_pll_98M", [MT2701_AUD_AUD2PLL_90M] = "top_aud2_pll_90M", [MT2701_AUD_HADDS2PLL_98M] = "top_hadds2_pll_98M", [MT2701_AUD_HADDS2PLL_294M] = "top_hadds2_pll_294M", [MT2701_AUD_AUDPLL] = "top_audpll", [MT2701_AUD_AUDPLL_D4] = "top_audpll_d4", [MT2701_AUD_AUDPLL_D8] = "top_audpll_d8", [MT2701_AUD_AUDPLL_D16] = "top_audpll_d16", [MT2701_AUD_AUDPLL_D24] = "top_audpll_d24", [MT2701_AUD_AUDINTBUS] = "top_audintbus_sel", [MT2701_AUD_CLK_26M] = "clk_26m", [MT2701_AUD_SYSPLL1_D4] = "top_syspll1_d4", [MT2701_AUD_AUD_K1_SRC_SEL] = "top_aud_k1_src_sel", [MT2701_AUD_AUD_K2_SRC_SEL] = "top_aud_k2_src_sel", [MT2701_AUD_AUD_K3_SRC_SEL] = "top_aud_k3_src_sel", [MT2701_AUD_AUD_K4_SRC_SEL] = "top_aud_k4_src_sel", [MT2701_AUD_AUD_K5_SRC_SEL] = "top_aud_k5_src_sel", [MT2701_AUD_AUD_K6_SRC_SEL] = "top_aud_k6_src_sel", [MT2701_AUD_AUD_K1_SRC_DIV] = "top_aud_k1_src_div", [MT2701_AUD_AUD_K2_SRC_DIV] = "top_aud_k2_src_div", [MT2701_AUD_AUD_K3_SRC_DIV] = "top_aud_k3_src_div", [MT2701_AUD_AUD_K4_SRC_DIV] = "top_aud_k4_src_div", [MT2701_AUD_AUD_K5_SRC_DIV] = "top_aud_k5_src_div", [MT2701_AUD_AUD_K6_SRC_DIV] = "top_aud_k6_src_div", [MT2701_AUD_AUD_I2S1_MCLK] = "top_aud_i2s1_mclk", [MT2701_AUD_AUD_I2S2_MCLK] = "top_aud_i2s2_mclk", [MT2701_AUD_AUD_I2S3_MCLK] = "top_aud_i2s3_mclk", [MT2701_AUD_AUD_I2S4_MCLK] = "top_aud_i2s4_mclk", [MT2701_AUD_AUD_I2S5_MCLK] = "top_aud_i2s5_mclk", [MT2701_AUD_AUD_I2S6_MCLK] = "top_aud_i2s6_mclk", [MT2701_AUD_ASM_M_SEL] = "top_asm_m_sel", [MT2701_AUD_ASM_H_SEL] = "top_asm_h_sel", [MT2701_AUD_UNIVPLL2_D4] = "top_univpll2_d4", [MT2701_AUD_UNIVPLL2_D2] = "top_univpll2_d2", [MT2701_AUD_SYSPLL_D5] = "top_syspll_d5", }; int mt2701_init_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; int i = 0; for (i = 0; i < MT2701_CLOCK_NUM; i++) { afe_priv->clocks[i] = devm_clk_get(afe->dev, aud_clks[i]); if (IS_ERR(aud_clks[i])) { dev_warn(afe->dev, "%s devm_clk_get %s fail\n", __func__, aud_clks[i]); return PTR_ERR(aud_clks[i]); } } return 0; } int mt2701_afe_enable_clock(struct mtk_base_afe *afe) { int ret = 0; ret = mt2701_turn_on_a1sys_clock(afe); if (ret) { dev_err(afe->dev, "%s turn_on_a1sys_clock fail %d\n", __func__, ret); return ret; } ret = mt2701_turn_on_a2sys_clock(afe); if (ret) { dev_err(afe->dev, "%s turn_on_a2sys_clock fail %d\n", __func__, ret); mt2701_turn_off_a1sys_clock(afe); return ret; } ret = mt2701_turn_on_afe_clock(afe); if (ret) { dev_err(afe->dev, "%s turn_on_afe_clock fail %d\n", __func__, ret); mt2701_turn_off_a1sys_clock(afe); mt2701_turn_off_a2sys_clock(afe); return ret; } regmap_update_bits(afe->regmap, ASYS_TOP_CON, AUDIO_TOP_CON0_A1SYS_A2SYS_ON, AUDIO_TOP_CON0_A1SYS_A2SYS_ON); regmap_update_bits(afe->regmap, AFE_DAC_CON0, AFE_DAC_CON0_AFE_ON, AFE_DAC_CON0_AFE_ON); regmap_write(afe->regmap, PWR2_TOP_CON, PWR2_TOP_CON_INIT_VAL); regmap_write(afe->regmap, PWR1_ASM_CON1, PWR1_ASM_CON1_INIT_VAL); regmap_write(afe->regmap, PWR2_ASM_CON1, PWR2_ASM_CON1_INIT_VAL); return 0; } void mt2701_afe_disable_clock(struct mtk_base_afe *afe) { mt2701_turn_off_afe_clock(afe); mt2701_turn_off_a1sys_clock(afe); mt2701_turn_off_a2sys_clock(afe); regmap_update_bits(afe->regmap, ASYS_TOP_CON, AUDIO_TOP_CON0_A1SYS_A2SYS_ON, 0); regmap_update_bits(afe->regmap, AFE_DAC_CON0, AFE_DAC_CON0_AFE_ON, 0); } int mt2701_turn_on_a1sys_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; int ret = 0; /* Set Mux */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUD_MUX1_SEL]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX1_SEL], ret); goto A1SYS_CLK_AUD_MUX1_SEL_ERR; } ret = clk_set_parent(afe_priv->clocks[MT2701_AUD_AUD_MUX1_SEL], afe_priv->clocks[MT2701_AUD_AUD1PLL_98M]); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX1_SEL], aud_clks[MT2701_AUD_AUD1PLL_98M], ret); goto A1SYS_CLK_AUD_MUX1_SEL_ERR; } /* Set Divider */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUD_MUX1_DIV]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX1_DIV], ret); goto A1SYS_CLK_AUD_MUX1_DIV_ERR; } ret = clk_set_rate(afe_priv->clocks[MT2701_AUD_AUD_MUX1_DIV], MT2701_AUD_AUD_MUX1_DIV_RATE); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%d fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX1_DIV], MT2701_AUD_AUD_MUX1_DIV_RATE, ret); goto A1SYS_CLK_AUD_MUX1_DIV_ERR; } /* Enable clock gate */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUD_48K_TIMING]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_48K_TIMING], ret); goto A1SYS_CLK_AUD_48K_ERR; } /* Enable infra audio */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_INFRA_SYS_AUDIO], ret); goto A1SYS_CLK_INFRA_ERR; } return 0; A1SYS_CLK_INFRA_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); A1SYS_CLK_AUD_48K_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_48K_TIMING]); A1SYS_CLK_AUD_MUX1_DIV_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX1_DIV]); A1SYS_CLK_AUD_MUX1_SEL_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX1_SEL]); return ret; } void mt2701_turn_off_a1sys_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_48K_TIMING]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX1_DIV]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX1_SEL]); } int mt2701_turn_on_a2sys_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; int ret = 0; /* Set Mux */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUD_MUX2_SEL]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX2_SEL], ret); goto A2SYS_CLK_AUD_MUX2_SEL_ERR; } ret = clk_set_parent(afe_priv->clocks[MT2701_AUD_AUD_MUX2_SEL], afe_priv->clocks[MT2701_AUD_AUD2PLL_90M]); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX2_SEL], aud_clks[MT2701_AUD_AUD2PLL_90M], ret); goto A2SYS_CLK_AUD_MUX2_SEL_ERR; } /* Set Divider */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUD_MUX2_DIV]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX2_DIV], ret); goto A2SYS_CLK_AUD_MUX2_DIV_ERR; } ret = clk_set_rate(afe_priv->clocks[MT2701_AUD_AUD_MUX2_DIV], MT2701_AUD_AUD_MUX2_DIV_RATE); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%d fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_MUX2_DIV], MT2701_AUD_AUD_MUX2_DIV_RATE, ret); goto A2SYS_CLK_AUD_MUX2_DIV_ERR; } /* Enable clock gate */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUD_44K_TIMING]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUD_44K_TIMING], ret); goto A2SYS_CLK_AUD_44K_ERR; } /* Enable infra audio */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_INFRA_SYS_AUDIO], ret); goto A2SYS_CLK_INFRA_ERR; } return 0; A2SYS_CLK_INFRA_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); A2SYS_CLK_AUD_44K_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_44K_TIMING]); A2SYS_CLK_AUD_MUX2_DIV_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX2_DIV]); A2SYS_CLK_AUD_MUX2_SEL_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX2_SEL]); return ret; } void mt2701_turn_off_a2sys_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_44K_TIMING]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX2_DIV]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUD_MUX2_SEL]); } int mt2701_turn_on_afe_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; int ret; /* enable INFRA_SYS */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_INFRA_SYS_AUDIO], ret); goto AFE_AUD_INFRA_ERR; } /* Set MT2701_AUD_AUDINTBUS to MT2701_AUD_SYSPLL1_D4 */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_AUDINTBUS]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_AUDINTBUS], ret); goto AFE_AUD_AUDINTBUS_ERR; } ret = clk_set_parent(afe_priv->clocks[MT2701_AUD_AUDINTBUS], afe_priv->clocks[MT2701_AUD_SYSPLL1_D4]); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[MT2701_AUD_AUDINTBUS], aud_clks[MT2701_AUD_SYSPLL1_D4], ret); goto AFE_AUD_AUDINTBUS_ERR; } /* Set MT2701_AUD_ASM_H_SEL to MT2701_AUD_UNIVPLL2_D2 */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_ASM_H_SEL]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_ASM_H_SEL], ret); goto AFE_AUD_ASM_H_ERR; } ret = clk_set_parent(afe_priv->clocks[MT2701_AUD_ASM_H_SEL], afe_priv->clocks[MT2701_AUD_UNIVPLL2_D2]); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[MT2701_AUD_ASM_H_SEL], aud_clks[MT2701_AUD_UNIVPLL2_D2], ret); goto AFE_AUD_ASM_H_ERR; } /* Set MT2701_AUD_ASM_M_SEL to MT2701_AUD_UNIVPLL2_D4 */ ret = clk_prepare_enable(afe_priv->clocks[MT2701_AUD_ASM_M_SEL]); if (ret) { dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[MT2701_AUD_ASM_M_SEL], ret); goto AFE_AUD_ASM_M_ERR; } ret = clk_set_parent(afe_priv->clocks[MT2701_AUD_ASM_M_SEL], afe_priv->clocks[MT2701_AUD_UNIVPLL2_D4]); if (ret) { dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[MT2701_AUD_ASM_M_SEL], aud_clks[MT2701_AUD_UNIVPLL2_D4], ret); goto AFE_AUD_ASM_M_ERR; } regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUDIO_TOP_CON0_PDN_AFE, 0); regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUDIO_TOP_CON0_PDN_APLL_CK, 0); regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, AUDIO_TOP_CON4_PDN_A1SYS, 0); regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, AUDIO_TOP_CON4_PDN_A2SYS, 0); regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, AUDIO_TOP_CON4_PDN_AFE_CONN, 0); return 0; AFE_AUD_ASM_M_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_ASM_M_SEL]); AFE_AUD_ASM_H_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_ASM_H_SEL]); AFE_AUD_AUDINTBUS_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUDINTBUS]); AFE_AUD_INFRA_ERR: clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); return ret; } void mt2701_turn_off_afe_clock(struct mtk_base_afe *afe) { struct mt2701_afe_private *afe_priv = afe->platform_priv; clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_INFRA_SYS_AUDIO]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_AUDINTBUS]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_ASM_H_SEL]); clk_disable_unprepare(afe_priv->clocks[MT2701_AUD_ASM_M_SEL]); regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUDIO_TOP_CON0_PDN_AFE, AUDIO_TOP_CON0_PDN_AFE); regmap_update_bits(afe->regmap, AUDIO_TOP_CON0, AUDIO_TOP_CON0_PDN_APLL_CK, AUDIO_TOP_CON0_PDN_APLL_CK); regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, AUDIO_TOP_CON4_PDN_A1SYS, AUDIO_TOP_CON4_PDN_A1SYS); regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, AUDIO_TOP_CON4_PDN_A2SYS, AUDIO_TOP_CON4_PDN_A2SYS); regmap_update_bits(afe->regmap, AUDIO_TOP_CON4, AUDIO_TOP_CON4_PDN_AFE_CONN, AUDIO_TOP_CON4_PDN_AFE_CONN); } void mt2701_mclk_configuration(struct mtk_base_afe *afe, int id, int domain, int mclk) { struct mt2701_afe_private *afe_priv = afe->platform_priv; int ret; int aud_src_div_id = MT2701_AUD_AUD_K1_SRC_DIV + id; int aud_src_clk_id = MT2701_AUD_AUD_K1_SRC_SEL + id; /* Set MCLK Kx_SRC_SEL(domain) */ ret = clk_prepare_enable(afe_priv->clocks[aud_src_clk_id]); if (ret) dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[aud_src_clk_id], ret); if (domain == 0) { ret = clk_set_parent(afe_priv->clocks[aud_src_clk_id], afe_priv->clocks[MT2701_AUD_AUD_MUX1_SEL]); if (ret) dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[aud_src_clk_id], aud_clks[MT2701_AUD_AUD_MUX1_SEL], ret); } else { ret = clk_set_parent(afe_priv->clocks[aud_src_clk_id], afe_priv->clocks[MT2701_AUD_AUD_MUX2_SEL]); if (ret) dev_err(afe->dev, "%s clk_set_parent %s-%s fail %d\n", __func__, aud_clks[aud_src_clk_id], aud_clks[MT2701_AUD_AUD_MUX2_SEL], ret); } clk_disable_unprepare(afe_priv->clocks[aud_src_clk_id]); /* Set MCLK Kx_SRC_DIV(divider) */ ret = clk_prepare_enable(afe_priv->clocks[aud_src_div_id]); if (ret) dev_err(afe->dev, "%s clk_prepare_enable %s fail %d\n", __func__, aud_clks[aud_src_div_id], ret); ret = clk_set_rate(afe_priv->clocks[aud_src_div_id], mclk); if (ret) dev_err(afe->dev, "%s clk_set_rate %s-%d fail %d\n", __func__, aud_clks[aud_src_div_id], mclk, ret); clk_disable_unprepare(afe_priv->clocks[aud_src_div_id]); } MODULE_DESCRIPTION("MT2701 afe clock control"); MODULE_AUTHOR("Garlic Tseng "); MODULE_LICENSE("GPL v2");