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
  12 #include <plat/ste_dma40.h>
  13
  14 #include <mach/devices.h>
  15 #include <mach/hardware.h>
  16 #include <mach/irqs.h>
  17 #include <mach/msp.h>
  18
  19 #include "ste-dma40-db8500.h"
  20 #include "board-mop500.h"
  21 #include "devices-db8500.h"
  22 #include "pins-db8500.h"
  23
  24 static struct stedma40_chan_cfg msp0_dma_rx = {
  25         .high_priority = true,
  26         .dir = STEDMA40_PERIPH_TO_MEM,
  27
  28         .src_dev_type = DB8500_DMA_DEV31_MSP0_RX_SLIM0_CH0_RX,
  29         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  30
  31         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  32         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  33
  34         /* data_width is set during configuration */
  35 };
  36
  37 static struct stedma40_chan_cfg msp0_dma_tx = {
  38         .high_priority = true,
  39         .dir = STEDMA40_MEM_TO_PERIPH,
  40
  41         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
  42         .dst_dev_type = DB8500_DMA_DEV31_MSP0_TX_SLIM0_CH0_TX,
  43
  44         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  45         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  46
  47         /* data_width is set during configuration */
  48 };
  49
  50 struct msp_i2s_platform_data msp0_platform_data = {
  51         .id = MSP_I2S_0,
  52         .msp_i2s_dma_rx = &msp0_dma_rx,
  53         .msp_i2s_dma_tx = &msp0_dma_tx,
  54 };
  55
  56 static struct stedma40_chan_cfg msp1_dma_rx = {
  57         .high_priority = true,
  58         .dir = STEDMA40_PERIPH_TO_MEM,
  59
  60         .src_dev_type = DB8500_DMA_DEV30_MSP3_RX,
  61         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  62
  63         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  64         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  65
  66         /* data_width is set during configuration */
  67 };
  68
  69 static struct stedma40_chan_cfg msp1_dma_tx = {
  70         .high_priority = true,
  71         .dir = STEDMA40_MEM_TO_PERIPH,
  72
  73         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
  74         .dst_dev_type = DB8500_DMA_DEV30_MSP1_TX,
  75
  76         .src_info.psize = STEDMA40_PSIZE_LOG_4,
  77         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
  78
  79         /* data_width is set during configuration */
  80 };
  81
  82 struct msp_i2s_platform_data msp1_platform_data = {
  83         .id = MSP_I2S_1,
  84         .msp_i2s_dma_rx = NULL,
  85         .msp_i2s_dma_tx = &msp1_dma_tx,
  86 };
  87
  88 static struct stedma40_chan_cfg msp2_dma_rx = {
  89         .high_priority = true,
  90         .dir = STEDMA40_PERIPH_TO_MEM,
  91
  92         .src_dev_type = DB8500_DMA_DEV14_MSP2_RX,
  93         .dst_dev_type = STEDMA40_DEV_DST_MEMORY,
  94
  95         /* MSP2 DMA doesn't work with PSIZE == 4 on DB8500v2 */
  96         .src_info.psize = STEDMA40_PSIZE_LOG_1,
  97         .dst_info.psize = STEDMA40_PSIZE_LOG_1,
  98
  99         /* data_width is set during configuration */
 100 };
 101
 102 static struct stedma40_chan_cfg msp2_dma_tx = {
 103         .high_priority = true,
 104         .dir = STEDMA40_MEM_TO_PERIPH,
 105
 106         .src_dev_type = STEDMA40_DEV_DST_MEMORY,
 107         .dst_dev_type = DB8500_DMA_DEV14_MSP2_TX,
 108
 109         .src_info.psize = STEDMA40_PSIZE_LOG_4,
 110         .dst_info.psize = STEDMA40_PSIZE_LOG_4,
 111
 112         .use_fixed_channel = true,
 113         .phy_channel = 1,
 114
 115         /* data_width is set during configuration */
 116 };
 117
 118 static struct platform_device *db8500_add_msp_i2s(struct device *parent,
 119                         int id,
 120                         resource_size_t base, int irq,
 121                         struct msp_i2s_platform_data *pdata)
 122 {
 123         struct platform_device *pdev;
 124         struct resource res[] = {
 125                 DEFINE_RES_MEM(base, SZ_4K),
 126                 DEFINE_RES_IRQ(irq),
 127         };
 128
 129         pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
 130                 id, irq);
 131         pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
 132                                                 res, ARRAY_SIZE(res),
 133                                                 pdata, sizeof(*pdata));
 134         if (!pdev) {
 135                 pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
 136                         id);
 137                 return NULL;
 138         }
 139
 140         return pdev;
 141 }
 142
 143 /* Platform device for ASoC MOP500 machine */
 144 static struct platform_device snd_soc_mop500 = {
 145         .name = "snd-soc-mop500",
 146         .id = 0,
 147         .dev = {
 148                 .platform_data = NULL,
 149         },
 150 };
 151
 152 /* Platform device for Ux500-PCM */
 153 static struct platform_device ux500_pcm = {
 154                 .name = "ux500-pcm",
 155                 .id = 0,
 156                 .dev = {
 157                         .platform_data = NULL,
 158                 },
 159 };
 160
 161 struct msp_i2s_platform_data msp2_platform_data = {
 162         .id = MSP_I2S_2,
 163         .msp_i2s_dma_rx = &msp2_dma_rx,
 164         .msp_i2s_dma_tx = &msp2_dma_tx,
 165 };
 166
 167 struct msp_i2s_platform_data msp3_platform_data = {
 168         .id             = MSP_I2S_3,
 169         .msp_i2s_dma_rx = &msp1_dma_rx,
 170         .msp_i2s_dma_tx = NULL,
 171 };
 172
 173 void mop500_audio_init(struct device *parent)
 174 {
 175         pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
 176         platform_device_register(&snd_soc_mop500);
 177
 178         pr_info("Initialize MSP I2S-devices.\n");
 179         db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
 180                            &msp0_platform_data);
 181         db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
 182                            &msp1_platform_data);
 183         db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
 184                            &msp2_platform_data);
 185         db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
 186                            &msp3_platform_data);
 187 }
 188
 189 /* Due for removal once the MSP driver has been fully DT:ed. */
 190 void mop500_of_audio_init(struct device *parent)
 191 {
 192         pr_info("%s: Register platform-device 'ux500-pcm'\n", __func__);
 193         platform_device_register(&ux500_pcm);
 194 }