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