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 = DMA_DEV_TO_MEM,
  25         .dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
  26 };
  27
  28 static struct stedma40_chan_cfg msp0_dma_tx = {
  29         .high_priority = true,
  30         .dir = DMA_MEM_TO_DEV,
  31         .dev_type = DB8500_DMA_DEV31_MSP0_SLIM0_CH0,
  32 };
  33
  34 struct msp_i2s_platform_data msp0_platform_data = {
  35         .id = MSP_I2S_0,
  36         .msp_i2s_dma_rx = &msp0_dma_rx,
  37         .msp_i2s_dma_tx = &msp0_dma_tx,
  38 };
  39
  40 static struct stedma40_chan_cfg msp1_dma_rx = {
  41         .high_priority = true,
  42         .dir = DMA_DEV_TO_MEM,
  43         .dev_type = DB8500_DMA_DEV30_MSP3,
  44 };
  45
  46 static struct stedma40_chan_cfg msp1_dma_tx = {
  47         .high_priority = true,
  48         .dir = DMA_MEM_TO_DEV,
  49         .dev_type = DB8500_DMA_DEV30_MSP1,
  50 };
  51
  52 struct msp_i2s_platform_data msp1_platform_data = {
  53         .id = MSP_I2S_1,
  54         .msp_i2s_dma_rx = NULL,
  55         .msp_i2s_dma_tx = &msp1_dma_tx,
  56 };
  57
  58 static struct stedma40_chan_cfg msp2_dma_rx = {
  59         .high_priority = true,
  60         .dir = DMA_DEV_TO_MEM,
  61         .dev_type = DB8500_DMA_DEV14_MSP2,
  62 };
  63
  64 static struct stedma40_chan_cfg msp2_dma_tx = {
  65         .high_priority = true,
  66         .dir = DMA_MEM_TO_DEV,
  67         .dev_type = DB8500_DMA_DEV14_MSP2,
  68         .use_fixed_channel = true,
  69         .phy_channel = 1,
  70 };
  71
  72 static struct platform_device *db8500_add_msp_i2s(struct device *parent,
  73                         int id,
  74                         resource_size_t base, int irq,
  75                         struct msp_i2s_platform_data *pdata)
  76 {
  77         struct platform_device *pdev;
  78         struct resource res[] = {
  79                 DEFINE_RES_MEM(base, SZ_4K),
  80                 DEFINE_RES_IRQ(irq),
  81         };
  82
  83         pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
  84                 id, irq);
  85         pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
  86                                                 res, ARRAY_SIZE(res),
  87                                                 pdata, sizeof(*pdata));
  88         if (!pdev) {
  89                 pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
  90                         id);
  91                 return NULL;
  92         }
  93
  94         return pdev;
  95 }
  96
  97 /* Platform device for ASoC MOP500 machine */
  98 static struct platform_device snd_soc_mop500 = {
  99         .name = "snd-soc-mop500",
 100         .id = 0,
 101         .dev = {
 102                 .platform_data = NULL,
 103         },
 104 };
 105
 106 struct msp_i2s_platform_data msp2_platform_data = {
 107         .id = MSP_I2S_2,
 108         .msp_i2s_dma_rx = &msp2_dma_rx,
 109         .msp_i2s_dma_tx = &msp2_dma_tx,
 110 };
 111
 112 struct msp_i2s_platform_data msp3_platform_data = {
 113         .id             = MSP_I2S_3,
 114         .msp_i2s_dma_rx = &msp1_dma_rx,
 115         .msp_i2s_dma_tx = NULL,
 116 };
 117
 118 void mop500_audio_init(struct device *parent)
 119 {
 120         pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
 121         platform_device_register(&snd_soc_mop500);
 122
 123         pr_info("Initialize MSP I2S-devices.\n");
 124         db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
 125                            &msp0_platform_data);
 126         db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
 127                            &msp1_platform_data);
 128         db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
 129                            &msp2_platform_data);
 130         db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
 131                            &msp3_platform_data);
 132 }