| /* |
| * Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved. |
| * |
| * 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. |
| * |
| * lpass.h - Definitions for the QTi LPASS |
| */ |
| |
| #ifndef __LPASS_H__ |
| #define __LPASS_H__ |
| |
| #include <linux/clk.h> |
| #include <linux/compiler.h> |
| #include <linux/platform_device.h> |
| #include <linux/regmap.h> |
| |
| #define LPASS_AHBIX_CLOCK_FREQUENCY 131072000 |
| |
| /* Both the CPU DAI and platform drivers will access this data */ |
| struct lpass_data { |
| |
| /* AHB-I/X bus clocks inside the low-power audio subsystem (LPASS) */ |
| struct clk *ahbix_clk; |
| |
| /* MI2S system clock */ |
| struct clk *mi2s_osr_clk; |
| |
| /* MI2S bit clock (derived from system clock by a divider */ |
| struct clk *mi2s_bit_clk; |
| |
| /* low-power audio interface (LPAIF) registers */ |
| void __iomem *lpaif; |
| |
| /* regmap backed by the low-power audio interface (LPAIF) registers */ |
| struct regmap *lpaif_map; |
| |
| /* interrupts from the low-power audio interface (LPAIF) */ |
| int lpaif_irq; |
| |
| /* SOC specific variations in the LPASS IP integration */ |
| struct lpass_variant *variant; |
| }; |
| |
| /* Vairant data per each SOC */ |
| struct lpass_variant { |
| u32 i2sctrl_reg_base; |
| u32 i2sctrl_reg_stride; |
| u32 i2s_ports; |
| u32 irq_reg_base; |
| u32 irq_reg_stride; |
| u32 irq_ports; |
| u32 rdma_reg_base; |
| u32 rdma_reg_stride; |
| u32 rdma_channels; |
| |
| /* SOC specific intialization like clocks */ |
| int (*init)(struct platform_device *pdev); |
| int (*exit)(struct platform_device *pdev); |
| |
| /* SOC specific dais */ |
| struct snd_soc_dai_driver *dai_driver; |
| int num_dai; |
| }; |
| |
| /* register the platform driver from the CPU DAI driver */ |
| int asoc_qcom_lpass_platform_register(struct platform_device *); |
| int asoc_qcom_lpass_cpu_platform_remove(struct platform_device *pdev); |
| int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev); |
| int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai); |
| extern struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops; |
| |
| #endif /* __LPASS_H__ */ |