arch/arm/mach-ux500/board-mop500-audio.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * License terms: GNU General Public License (GPL), version 2
   5  */
   6
   7 #include <linux/platform_device.h>
   8 #include <linux/init.h>
   9 #include <linux/gpio.h>
  10 #include <linux/platform_data/pinctrl-nomadik.h>
  11 #include <linux/platform_data/dma-ste-dma40.h>
  12
  13 #include <mach/devices.h>
  14 #include <mach/hardware.h>
  15 #include <mach/irqs.h>
  16 #include <mach/msp.h>
  17
  18 #include "ste-dma40-db8500.h"
  19 #include "board-mop500.h"
  20 #include "devices-db8500.h"
  21 #include "pins-db8500.h"
  22
  23 static struct stedma40_chan_cfg msp0_dma_rx = {
  24         .high_priority = true,
  25         .dir = STEDMA40_PERIPH_TO_MEM,
  26
  27         .src_dev_type = DB8500_DMA_DEV31_MSP0_RX_SLIM0_CH0_RX,
  28         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  29
  30         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  31         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  32
  33         /* data_width is set during configuration */
  34 };
  35
  36 static struct stedma40_chan_cfg msp0_dma_tx = {
  37         .high_priority = true,
  38         .dir = STEDMA40_MEM_TO_PERIPH,
  39
  40         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
  41         .dst_dev_type = DB8500_DMA_DEV31_MSP0_TX_SLIM0_CH0_TX,
  42
  43         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  44         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  45
  46         /* data_width is set during configuration */
  47 };
  48
  49 struct msp_i2s_platform_data msp0_platform_data = {
  50         .id = MSP_I2S_0,
  51         .msp_i2s_dma_rx = &msp0_dma_rx,
  52         .msp_i2s_dma_tx = &msp0_dma_tx,
  53 };
  54
  55 static struct stedma40_chan_cfg msp1_dma_rx = {
  56         .high_priority = true,
  57         .dir = STEDMA40_PERIPH_TO_MEM,
  58
  59         .src_dev_type = DB8500_DMA_DEV30_MSP3_RX,
  60         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  61
  62         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  63         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  64
  65         /* data_width is set during configuration */
  66 };
  67
  68 static struct stedma40_chan_cfg msp1_dma_tx = {
  69         .high_priority = true,
  70         .dir = STEDMA40_MEM_TO_PERIPH,
  71
  72         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
  73         .dst_dev_type = DB8500_DMA_DEV30_MSP1_TX,
  74
  75         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  76         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  77
  78         /* data_width is set during configuration */
  79 };
  80
  81 struct msp_i2s_platform_data msp1_platform_data = {
  82         .id = MSP_I2S_1,
  83         .msp_i2s_dma_rx = NULL,
  84         .msp_i2s_dma_tx = &msp1_dma_tx,
  85 };
  86
  87 static struct stedma40_chan_cfg msp2_dma_rx = {
  88         .high_priority = true,
  89         .dir = STEDMA40_PERIPH_TO_MEM,
  90
  91         .src_dev_type = DB8500_DMA_DEV14_MSP2_RX,
  92         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  93
  94         /* MSP2 DMA doesn't work with PSIZE == 4 on DB8500v2 */
  95         .src_info.psize = STEDMA40_PSIZE_LOG_1,
  96         .dst_info.psize = STEDMA40_PSIZE_LOG_1,
  97
  98         /* data_width is set during configuration */
  99 };
 100
 101 static struct stedma40_chan_cfg msp2_dma_tx = {
 102         .high_priority = true,
 103         .dir = STEDMA40_MEM_TO_PERIPH,
 104
 105         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
 106         .dst_dev_type = DB8500_DMA_DEV14_MSP2_TX,
 107
 108         .src_info.psize = STEDMA40_PSIZE_LOG_4,
 109         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
 110
 111         .use_fixed_channel = true,
 112         .phy_channel = 1,
 113
 114         /* data_width is set during configuration */
 115 };
 116
 117 static struct platform_device *db8500_add_msp_i2s(struct device *parent,
 118                         int id,
 119                         resource_size_t base, int irq,
 120                         struct msp_i2s_platform_data *pdata)
 121 {
 122         struct platform_device *pdev;
 123         struct resource res[] = {
 124                 DEFINE_RES_MEM(base, SZ_4K),
 125                 DEFINE_RES_IRQ(irq),
 126         };
 127
 128         pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
 129                 id, irq);
 130         pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
 131                                                 res, ARRAY_SIZE(res),
 132                                                 pdata, sizeof(*pdata));
 133         if (!pdev) {
 134                 pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
 135                         id);
 136                 return NULL;
 137         }
 138
 139         return pdev;
 140 }
 141
 142 /* Platform device for ASoC MOP500 machine */
 143 static struct platform_device snd_soc_mop500 = {
 144         .name = "snd-soc-mop500",
 145         .id = 0,
 146         .dev = {
 147                 .platform_data = NULL,
 148         },
 149 };
 150
 151 struct msp_i2s_platform_data msp2_platform_data = {
 152         .id = MSP_I2S_2,
 153         .msp_i2s_dma_rx = &msp2_dma_rx,
 154         .msp_i2s_dma_tx = &msp2_dma_tx,
 155 };
 156
 157 struct msp_i2s_platform_data msp3_platform_data = {
 158         .id             = MSP_I2S_3,
 159         .msp_i2s_dma_rx = &msp1_dma_rx,
 160         .msp_i2s_dma_tx = NULL,
 161 };
 162
 163 void mop500_audio_init(struct device *parent)
 164 {
 165         pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
 166         platform_device_register(&snd_soc_mop500);
 167
 168         pr_info("Initialize MSP I2S-devices.\n");
 169         db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
 170                            &msp0_platform_data);
 171         db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
 172                            &msp1_platform_data);
 173         db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
 174                            &msp2_platform_data);
 175         db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
 176                            &msp3_platform_data);
 177 }